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Investigation of the quality of life,mental status in patients with gynecological cancer and its influencing factors 被引量:2
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作者 Hai-Xia Shang Wen-Ting Ning +5 位作者 Jin-Fen Sun Nan Guo Xin Guo Jan-Nan Zhang Hong-Xin Yu Su-Hui Wu 《World Journal of Psychiatry》 SCIE 2024年第7期1053-1061,共9页
BACKGROUND Having a gynecological tumor or undergoing treatment can be a traumatic experience for women,as it affects their self-image and sexual relationships and can lead to psychological reactions.Psychological adj... BACKGROUND Having a gynecological tumor or undergoing treatment can be a traumatic experience for women,as it affects their self-image and sexual relationships and can lead to psychological reactions.Psychological adjustment following cancer occurrence remains a key issue among the survivors.AIM To examine the current status of quality of life(QoL),anxiety,and depression in patients with gynecological cancer and to analyze the factors associated with it.METHODS Data for 160 patients with gynecological malignancies treated at Shanxi Bethune Hospital from June 2020 to June 2023 were collected and analyzed retrospectively.Patients’QoL was assessed using the European Organization for Research on Treatment of Cancer Quality of Life Questionnaire Core 30 and the Functional Assessment of Cancer Therapy-General Questionnaire.Their emotional status was evaluated using the Self-Rating Anxiety/Depression Scale.The associated factors of anxiety and depression were analyzed.RESULTS The overall QoL score of the patients 6 months after surgery was 76.39±3.63 points.This included low levels of social and emotional function and severe fatigue and pain.The scores for physiological,functional,emotional,social,and family well-being exhibited an upward trend following surgery compared with those before surgery.One month after surgery,some patients experienced anxiety and depression,with an incidence of 18.75%and 18.13%,respectively.Logistic analysis revealed that good sleep was a protective factor against anxiety and depression in patients with gynecological tumors,whereas physical pain was a risk factor.CONCLUSION Patients with gynecological malignancies often experience anxiety and depression.By analyzing the factors that affect patients’QoL,effective nursing measures can be administered. 展开更多
关键词 GYNECOLOGICAL TUMORS Quality of life ANXIETY DEPRESSION
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Shifting the Paradigm:A Fresh Look at Physical Activity Frequency and Its Impact on Mental Health,Life Satisfaction,and Self-Rated Health in Adolescents 被引量:1
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作者 Wenjie Li Yucheng Gao +3 位作者 Guoqing Liu Rongkai Hao Meijie Zhang Xiaotian Li 《International Journal of Mental Health Promotion》 2024年第2期83-92,共10页
As adolescent mental health problems are becoming a more serious issue globally,this paper explores the relationship of physical activity in adolescents and its frequency on mental health as well as examines the media... As adolescent mental health problems are becoming a more serious issue globally,this paper explores the relationship of physical activity in adolescents and its frequency on mental health as well as examines the mediating effects of life satisfaction and self-rated health in order to provide a reference for the promotion of mental health in adolescents.A sample of 3578 Chinese high school students completed questionnaires assessing their mental health,physical activity frequency,life satisfaction,and self-rated health.The mean SCL-90 value for adolescents was found to be 1.629%,and 24.73%of adolescents had varying degrees of mental health issue.Increased physical activity frequency is positively associated with improved mental health(p<0.001).Additionally,life satisfaction and self-rated health were found to play significant mediating roles in the relationship between physical activity frequency and mental health.Specifically,low-frequency physical activity had the most pronounced mediating effect on mental health through life satisfaction,while high-frequency physical activity exerted the most significant mediating effect on mental health through self-rated health.These findings underscore the importance of promoting physical activity among adolescents and highlight the distinct pathways through which physical activity frequency can influence mental health outcomes.Further research is needed to explore these relationships in diverse populations and settings,as well as to develop targeted intervention. 展开更多
关键词 Adolescents physical activity mental health life satisfaction self-rated health
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Analysis of factors impacting postoperative pain and quality of life in patients with mixed hemorrhoids:A retrospective study 被引量:1
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作者 Xiao-Wen Sun Jing-Yi Xu +3 位作者 Chang-Zhen Zhu Si-Jia Li Lu-Jia Jin Zhi-Dong Zhu 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第3期731-739,共9页
BACKGROUND Hemorrhoids are among the most common and frequently encountered chronic anorectal diseases in anorectal surgery.They are venous clusters formed by con-gestion,expansion,and flexion of the venous plexus in ... BACKGROUND Hemorrhoids are among the most common and frequently encountered chronic anorectal diseases in anorectal surgery.They are venous clusters formed by con-gestion,expansion,and flexion of the venous plexus in the lower part of the rec-tum.Mixed hemorrhoids bleed easily and recurrently,and this can result in severe anemia.Hence,they may have a negative effect on the health of the patient and surgical treatment is required.Milligan-Morgan hemorrhoidectomy has been widely used since 1937 for the treatment of grade III and IV hemorrhoids.How-ever,most patients experience different degrees of postoperative pain that may cause anxiety.with mixed hemorrhoids post-surgery.METHODS The clinical data of patients with mixed hemorrhoids who underwent Milligan-Morgan hemorrhoidectomy were collected retrospectively.The basic character-istics of the enrolled patients with mixed hemorrhoids were recorded,and based on the Goligher clinical grading system,the hemorrhoids were classified as grades III or IV.The endpoint of this study was the disappearance of pain in all patients.Quantitative data were presented as mean±SD,such as age,pain score,and QoL score.Student’s t-test was used to compare the groups.RESULTS A total of 164 patients were enrolled.The distribution of the visual analog scale pain scores of all patients at 3,7,14 and 28 d after surgery showed that post-surgery pain was significantly reduced with the passage of time.Fourteen days after the operation,the pain had completely disappeared in some patients.Twenty-eight days after the surgery,none of the patients experienced any pain.Comparing the World Health Or-ganization Quality of Life-BREF self-reporting questionnaire scores of patients between 14 and 28 d after surgery,we observed that the quality-of-life scores of the patients post-surgery had significantly improved.There were six items that were compared at 14-and 28-d post-surgery.The mean QoL score 28 d after surgery(4.79±0.46)was higher than that at 14 d post-surgery(3.79±0.57).The mean health condition score 28 d after surgery(4.80±0.41)was also higher than that at 14 d post-surgery(4.01±0.62).The mean physical health score 28 d after surgery(32.10±2.96)was significantly higher than that at 14 d post-surgery(23.41±2.85).The mean psychological health score 28 d after surgery(27.22±1.62)was significantly higher than that at 14 d post-surgery(21.37±1.70).The mean social relations score 28 d after surgery(12.21±1.59)was significantly higher than that at 14 d post-surgery(6.32±1.66).The mean surrounding environment score 28 d after surgery(37.13±2.88)was significantly higher than that at 14 d post-surgery(28.42±2.86).The differences in quality-of-life scores at day 14 and day 28 post-surgery were ob-served to be statistically significant(P<0.001).CONCLUSION Milligan-Morgan hemorrhoidectomy can significantly improve the postoperative QoL of patients.Age,sex,and the number of surgical resections were important factors influencing Milligan-Morgan hemorrhoidectomy. 展开更多
关键词 HEMORRHOIDS Mixed hemorrhoids Milligan organ hemorrhoidectomy Postoperative pain Quality of life Anesthesia mode
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一种综合考虑暂稳态影响的FACTS选址方法
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作者 邓慧琼 马若涵 +2 位作者 齐宁 吴俊媛 郑荣进 《贵州大学学报(自然科学版)》 2024年第2期34-41,66,共9页
柔性交流输电系统(flexible AC transmission system,FACTS)的并网位置对电力系统的安全运行具有重要影响。本文综合考虑故障发生后的暂态与稳态过程,提出兼顾暂稳态判据的选址打分方法,在单机等面积定则基础上,推导出FACTS元件等值系... 柔性交流输电系统(flexible AC transmission system,FACTS)的并网位置对电力系统的安全运行具有重要影响。本文综合考虑故障发生后的暂态与稳态过程,提出兼顾暂稳态判据的选址打分方法,在单机等面积定则基础上,推导出FACTS元件等值系统的暂态裕度量化积分,将暂态稳定裕度近似灵敏度和稳态母线电压越限危险度作为选址依据。基于FACTS元件与储能相结合技术,将有功死区控制、电池荷电状态限制和逆变器容量限制考虑进FACTS元件建模中,利用PSASP/UD自定义模块搭建具有储能作用的FACTS模型。通过电力系统分析软件PSASP中CEPRI-36节点系统进行仿真,在得分高的母线处采取FACTS元件以注入电流源形式并网参与系统紧急控制,验证本文所提选址方法的准确性及FACTS元件对抑制电力系统连锁故障扩散的影响。 展开更多
关键词 facts元件 储能 选址 电压越限 传输功率 综合打分 连锁故障
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Mediating Effect of Mindfulness,Self-Esteem and Psychological Resilience in the Relation between Childhood Maltreatment and Life Satisfaction
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作者 He Zhong Yaping Zhou +1 位作者 Chenwei Liu Yintao Cao 《International Journal of Mental Health Promotion》 2024年第6期481-489,共9页
Childhood maltreatment,as a typical early adverse environment,is known to have a negative impact on one’s life satisfaction.Mindfulness,on the other hand,may serve as a protective factor.This study explored the media... Childhood maltreatment,as a typical early adverse environment,is known to have a negative impact on one’s life satisfaction.Mindfulness,on the other hand,may serve as a protective factor.This study explored the mediating role of mindfulness and its related variables–positive thoughts,psychological resilience and self-esteem.In order to testify the mechanism,we administered Childhood Trauma Questionnaire(CTQ),Satisfaction with Life Scale(SWLS),Mindful Attention Awareness Scale(MAAS),Connor–Davidson Resilience Scale(CD-RISC)and Rosenberg Self-Esteem Scale(RSES)to a non-clinical sample of Chinese university students(N=1021).The results indicated that positive thoughts did not mediate the relationship between childhood maltreatment and life satisfaction,but self-esteem(β=−0.194,95%CI=[−0.090,−0.040])and psychological resilience(β=−0.063,95%CI=[−0.059,−0.020])mediated the relationship,as well as the“mindfulness-selfesteem”(β=−0.061,95%CI=[−0.287,−0.126])and“mindfulness-psychological resilience”(β=−0.035,95%CI=[−0.115,−0.034]).The results of this study were helpful to understand the relationship between childhood maltreatment and life satisfaction and provided a theoretical basis for the development of mindfulness intervention programs from the perspective of positive psychology. 展开更多
关键词 MINDFULNESS childhood maltreatment life satisfaction SELF-ESTEEM RESILIENCE
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Scarcity and Mental Health—Multiple Mediators of Sleep Quality and Life Satisfaction
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作者 Na Liu Yan Zhang Junxiu Wang 《International Journal of Mental Health Promotion》 2024年第6期449-462,共14页
Background:In the current social environment,scarcity,as a universally present objective state,profoundly impacts individuals’decision-making and health through the subjective feeling it induces,known as a“scarcity ... Background:In the current social environment,scarcity,as a universally present objective state,profoundly impacts individuals’decision-making and health through the subjective feeling it induces,known as a“scarcity mindset.”Particularly,the feeling of scarcity related to money and sleep time is not only widespread but also directly linked to an individual’s mental health.Purpose:This study aims to delve into the relationship between the feeling of scarcity and mental health,with a specific focus on the relationship between the feeling of money scarcity or sleep time scarcity and mental health,as well as the role of sleep quality or life satisfaction in this relationship.Procedure:We determined the sampling quotas based on the population and economic development levels of each province in the“China Statistical Yearbook(2021)”(National Bureau of Statistics,2021).Participants were selected using the Probability Proportional to Size(PPS)sampling method.Data was collected by distributing online questionnaires to participants,and the relationships between the main variables were explored using structural equation modeling.Results:1.In China,the feeling of sleep time scarcity is stronger than the feeling of money scarcity among the public.2.The feeling of money scarcity is positively correlated with depression and anxiety,whereas the feeling of sleep time scarcity is only positively correlated with depression.3.The feeling of scarcity mainly leads to depression and self-denial through reducing life satisfaction,and it leads to anxiety through reducing sleep quality.Conclusion:The feeling of scarcity in money and sleep time is related to different dimensions of mental health.Therefore,reasonably planning financial allocation and ensuring an adequate amount of sleep can reduce the sense of scarcity,thereby improving mental health.Additionally,improving sleep quality and increasing life satisfaction can alleviate the adverse effects of scarcity on mental health. 展开更多
关键词 SCARCITY sleep quality life satisfaction mental health multiple mediators
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Prognosis Factors of Urinary Quality of Life in Parkinson Disease
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作者 Ngor Side Diagne Sakhi Othman +10 位作者 Ababacar Mamadou Gueye Marie Jeanne Sakho Fatou Dialo Mboup Amélie Ndeye Makarame Sy Papa Ndiouga Lo Ba Seydina Ousmane Anna Modji Basse Maouly Fall Adjaratou Dieynaba Sow Moustapha Ndiaye Amadou Gallo Diop 《Open Journal of Therapy and Rehabilitation》 2024年第1期10-17,共8页
Introduction: Quality of life in Parkinson disease is not necessary linked to motor symptoms. It’s correlated of overactive bladders and prostatic symptoms. Prognosis factors of urinary quality of life are unknown. O... Introduction: Quality of life in Parkinson disease is not necessary linked to motor symptoms. It’s correlated of overactive bladders and prostatic symptoms. Prognosis factors of urinary quality of life are unknown. Objectives: Our study aims to find prognosis factors of quality of life associated specifically of urinary disorders in PD. Patients and methods: We conducted a transversal, analytic and descriptive study in Physical Medicine, and Neurology departments, Fann Teaching Hospital, Dakar and included patients followed for treatment of PD. Urinary disorders, quality of life and functional autonomy were assessed respectively by Urinary Symptoms Profile (USP), Qualiven Short Form, Schwab and England Scale. Results: 38 patients presented PD, with a mean age of 60.89 ± 13.6 years and sex-ratio of 2.45. Mean duration of PD was 3.1 ± 2.9 years. Urinary disorders were found in 47.36% and dominated by incontinence (88.88%) and overactive bladders (88.88%) which were minor in more than 55%. Quality of life was impaired in 88.88% of cases. Minor forms (43.75%) were predominant and constraint dimension (50%) was the most severely altered. Prognosis factors for quality of life of urinary disorders were PD stages (0.046) and functional autonomy (0.042). Discussion and conclusion: Urinary disorders in PD are common, impaired quality of life, especially the constraint dimension, depends on stage of evolution of PD and functional autonomy of patients. 展开更多
关键词 URINARY Quality of life Parkinson Disease DAKAR
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Analysis of the Status Quo and Influencing Factors of Advanced Lung Cancer Patients’ Quality of Life
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作者 Xuehong Tang Tao Tang Xuemei Jiang 《Journal of Clinical and Nursing Research》 2024年第10期113-119,共7页
Objective:To investigate the quality of life and related influencing factors of patients with advanced lung cancer.Methods:A cross-sectional survey was conducted on 51 patients with advanced lung cancer who were hospi... Objective:To investigate the quality of life and related influencing factors of patients with advanced lung cancer.Methods:A cross-sectional survey was conducted on 51 patients with advanced lung cancer who were hospitalized in the Department of Oncology from January 2023 to December 2023,and the influencing factors of patients’quality of life were analyzed.Results:Among the five functional scales(physical,role,cognitive,emotional,and social functioning)of the QLQ-C30 scale,the social and emotional function scores were the lowest,respectively 16.7(IQR:0,33.3)points,and 16.7(IQR:8.3,25),and among the three symptom scales(fatigue,pain,nausea and vomiting),the fatigue symptom score was the highest:77.7(IQR:66.7,88.9)points.The results of Spearman correlation analysis showed that the anxiety score of patients with advanced lung cancer was positively correlated with depression score(P<0.01),while the quality of life of patients with advanced lung cancer was not correlated with anxiety and depression score(P>0.1).The self-care ability,the nature of the disease,and whether the patient was treated for chemotherapy were the independent influencing factors of the patient’s quality of life,and the difference was statistically significant(P<0.001).Conclusion:Patients with advanced lung cancer have different degrees of anxiety and depression,and their quality of life is affected by many factors,which are mainly related to the patient’s self-care ability,the nature of the disease,and whether they received chemotherapy. 展开更多
关键词 Advanced lung cancer Quality of life ANXIETY DEPRESSION
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Reevaluating health metrics:Unraveling the limitations of disabilityadjusted life years as an indicator in disease burden assessment
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作者 Ariel Beresniak Dominique Bremond-Gignac +1 位作者 Danielle Dupont Gerard Duru 《World Journal of Methodology》 2025年第1期14-19,共6页
In 1993,the World Bank released a global report on the efficacy of health promotion,introducing the disability-adjusted life years(DALY)as a novel indicator.The DALY,a composite metric incorporating temporal and quali... In 1993,the World Bank released a global report on the efficacy of health promotion,introducing the disability-adjusted life years(DALY)as a novel indicator.The DALY,a composite metric incorporating temporal and qualitative data,is grounded in preferences regarding disability status.This review delineates the algorithm used to calculate the value of the proposed DALY synthetic indicator and elucidates key methodological challenges associated with its application.In contrast to the quality-adjusted life years approach,derived from multi-attribute utility theory,the DALY stands as an independent synthetic indicator that adopts the assumptions of the Time Trade Off utility technique to define Disability Weights.Claiming to rely on no mathematical or economic theory,DALY users appear to have exempted themselves from verifying whether this indicator meets the classical properties required of all indicators,notably content validity,reliability,specificity,and sensitivity.The DALY concept emerged primarily to facilitate comparisons of the health impacts of various diseases globally within the framework of the Global Burden of Disease initiative,leading to numerous publications in international literature.Despite widespread adoption,the DALY synthetic indicator has prompted significant methodological concerns since its inception,manifesting in inconsistent and non-reproducible results.Given the substantial diffusion of the DALY indicator and its critical role in health impact assessments,a reassessment is warranted.This reconsideration is imperative for enhancing the robustness and reliability of public health decisionmaking processes. 展开更多
关键词 Disability adjusted life years Cost-utility analyses Outcome research Public health Burden of disease
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FACTS技术在电力系统中的应用
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作者 陈思琦 妙红英 +1 位作者 赵城金 马文喆 《流体测量与控制》 2024年第5期77-82,共6页
柔性交流输电系统(FACTS)建立在电力电子或其他静止型控制器基础之上,通过对电力系统的某个或多个参数进行调节,从而实现电力系统可控的目标,进而增强电力传输能力和系统运行的稳定性。本文对柔性交流输电系统中FACTS控制器的3种类型进... 柔性交流输电系统(FACTS)建立在电力电子或其他静止型控制器基础之上,通过对电力系统的某个或多个参数进行调节,从而实现电力系统可控的目标,进而增强电力传输能力和系统运行的稳定性。本文对柔性交流输电系统中FACTS控制器的3种类型进行了介绍,对4种典型的FACTS控制器的工作原理、稳态模型以及动态模型进行了研究。从控制电力系统的无功功率和电压、改善低频振荡、提高系统的暂态稳定性等方面,介绍了FACTS控制器在电力系统中的应用。 展开更多
关键词 柔性交流输电系统 电力系统 潮流控制
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Investigation of Student Nurses’Attitudes towards End-of-Life Care and Their Influencing Factors
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作者 Lei Peng Jingxian Wang +1 位作者 Jia Wang Qiangqiang Liu 《Open Journal of Nursing》 2024年第5期183-191,共9页
Background: This cross-sectional investigative study aimed to determine student nurses’ attitudes towards end-of-life care. Methods: This study used a descriptive research design with stratified sampling to survey st... Background: This cross-sectional investigative study aimed to determine student nurses’ attitudes towards end-of-life care. Methods: This study used a descriptive research design with stratified sampling to survey student nurses enrolled in one of four nursing colleges in China from January 2023 to December 2023. Student nurses’ general demographic and prior related information, attitudes towards death and attitudes towards end-of-life care were determined using a general information questionnaire, the Death Attitude Profile—Revised scale and the Professional End-of-Life Attitude Scale (PEAS), respectively. Results: The total PEAS score was 122.91 ± 16.123. Significant differences were noted in the attitude towards end-of-life care scores according to sources of end-of-life care knowledge (P Conclusions: Student nurses lacked an optimistic attitude towards end-of-life care, which was influenced by differences in the sources of end-of-life care knowledge. 展开更多
关键词 Nursing Students End-of-life Care ATTITUDE
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信息电力与FACTS及DFACTS技术 被引量:161
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作者 韩英铎 严干贵 +1 位作者 姜齐荣 黄民聪 《电力系统自动化》 EI CSCD 北大核心 2000年第19期1-7,20,共8页
信息社会对供电质量提出了新挑战 ,指出发展 FACTS及 DFACTS技术是满足信息电力要求的重要途径。在分析我国大区电网互联及其电压稳定、无功补偿问题的基础上 ,指出发展STATCOM应是我国 FACTS技术研究的主要方向 ,并阐述了 STATCOM研究... 信息社会对供电质量提出了新挑战 ,指出发展 FACTS及 DFACTS技术是满足信息电力要求的重要途径。在分析我国大区电网互联及其电压稳定、无功补偿问题的基础上 ,指出发展STATCOM应是我国 FACTS技术研究的主要方向 ,并阐述了 STATCOM研究的重点课题。同时指出在 DFACTS方面我国应加强系统化研究 ,主要内容包括 :电能质量问题对不同用户影响的试验研究、电能质量监测和评估技术。 展开更多
关键词 信息电力 电能质量 facts Dfacts 电力系统
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基于RTDS的机电电磁暂态混合实时仿真及其在FACTS中的应用 被引量:24
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作者 李秋硕 张剑 +2 位作者 肖湘宁 李伟 汪建 《电工技术学报》 EI CSCD 北大核心 2012年第3期219-226,共8页
深入研究了基于实时数字仿真器(RTDS)的混合仿真平台的实现方法,其中包括利用RTDS的自定义工具Component Builder(CBuilder)开发的机电暂态程序与接口模块,并选取了适用于该仿真平台的数据交换时序。提出了利用机电-电磁暂态混合仿真技... 深入研究了基于实时数字仿真器(RTDS)的混合仿真平台的实现方法,其中包括利用RTDS的自定义工具Component Builder(CBuilder)开发的机电暂态程序与接口模块,并选取了适用于该仿真平台的数据交换时序。提出了利用机电-电磁暂态混合仿真技术进行柔性交流输电系统(FACTS)研究的方法,并在RTDS上搭建有两个静止无功补偿器(SVC)控制母线电压的系统模型,对全系统进行全电磁实时仿真、机电-电磁混合实时仿真、对等值化简后的系统进行全电磁仿真,比较不同SVC组合控制下的仿真结果。验证了混合仿真系统的准确性,阐述了利用未等值大系统开展FACTS应用研究的必要性。可以预见,混合仿真技术在大系统的FACTS研究中具有良好的前景。 展开更多
关键词 混合实时仿真 接口 facts 对比分析
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FACTS技术研究现状及其在中国的应用与发展 被引量:88
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作者 王仲鸿 沈斐 吴铁铮 《电力系统自动化》 EI CSCD 北大核心 2000年第23期1-5,共5页
概述性地描述了柔性交流输电技术 (FACTS)在改造中国电力系统中将发挥的巨大作用及广阔的市场前景、FACTS技术的研究与应用现状及发展趋势 ,以及
关键词 电力系统 柔性交流输电系统(facts) 静止补偿器
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基于PSASP程序的FACTS潮流建模 被引量:37
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作者 刘前进 黎雄 孙元章 《电网技术》 EI CSCD 北大核心 2000年第7期6-9,共4页
基于注入功率法分别建立统一潮流控制器 ( UPFC)和可控串联电容补偿器 ( TCPS)的潮流模型 ,并利用电力系统分析综合程序 ( PSASP6.0 )提供的用户自定义模型和用户程序接口 ,构造了适合于 PSASP的相应的潮流算法 ,可以用来分析灵活交流... 基于注入功率法分别建立统一潮流控制器 ( UPFC)和可控串联电容补偿器 ( TCPS)的潮流模型 ,并利用电力系统分析综合程序 ( PSASP6.0 )提供的用户自定义模型和用户程序接口 ,构造了适合于 PSASP的相应的潮流算法 ,可以用来分析灵活交流输电技术 ( FACTS)在给定控制变量和控制目标下的潮流收敛特性。IEEE1 4节点系统作为算例被用来研究不同控制方式下的系统潮流特性 ,计算结果证明了模型的合理性。 展开更多
关键词 facts 潮流 建模 PSASP程序 交流输电
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FACTS装置在风电场中的无功补偿原理与仿真 被引量:35
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作者 靳静 艾芊 赵岩 《电力自动化设备》 EI CSCD 北大核心 2007年第8期58-61,共4页
分析风电场并网运行存在的无功补偿及电压稳定问题的产生机理,在固定电容器组作为一种传统的无功补偿方法逐渐显现弊端时,将柔性交流输电系统(FACTS)设备运用到风电场以提高其运行的稳定性。以恒速恒频异步风力发电机为研究对象,采用变... 分析风电场并网运行存在的无功补偿及电压稳定问题的产生机理,在固定电容器组作为一种传统的无功补偿方法逐渐显现弊端时,将柔性交流输电系统(FACTS)设备运用到风电场以提高其运行的稳定性。以恒速恒频异步风力发电机为研究对象,采用变桨距控制方式。以Matlab/Simulink为平台,实现风电场的电气输电系统、各种风速的建模。在各种风速扰动和电网故障的情况下,分别对加入静止无功补偿器和静止同步补偿器的风电场进行仿真,得到的结果可以证明两者在风电场无功补偿方面的积极作用,并对两者的性能优劣进行对比。 展开更多
关键词 风电场 异步发电机 facts 无功补偿 电压稳定
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FACTS装置控制器设计中的关键技术问题 被引量:7
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作者 王强 姜齐荣 +3 位作者 梁旭 刘文华 王仲鸿 韩英铎 《中国电力》 CSCD 北大核心 1999年第2期29-33,共5页
在归纳总结大量文献的基础上,对FACTS装置控制器设计中会遇到的一系列关键性的技术问题,诸如快速信号采集处理、控制的多目标、直流偏磁问题、不对称问题、控制与保护、控制器之间的协调等,做了较全面的综述。
关键词 控制器 设计 facts装置 交流输电系统
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具有串联电压源的FACTS暂态稳定数字仿真 被引量:6
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作者 陈礼义 董雷 +2 位作者 陈超英 蒲天骄 康熙 《电网技术》 EI CSCD 北大核心 1997年第3期10-13,17,共5页
本文提出一种用动态数字仿真研究柔性交流输电系统(FACTS)稳定性的模型。为了适应FACTS设备对电力系统暂态过程的快速作用,本文采用微分方程与代数方程联立求解法求解。算例系统的计算结果表明.所提出的模型和算法是正确而有效的,... 本文提出一种用动态数字仿真研究柔性交流输电系统(FACTS)稳定性的模型。为了适应FACTS设备对电力系统暂态过程的快速作用,本文采用微分方程与代数方程联立求解法求解。算例系统的计算结果表明.所提出的模型和算法是正确而有效的,为研究FACTS的暂态稳定性和控制作用提供了有效工具。 展开更多
关键词 交流输电系统 数字仿真 暂态稳定 facts
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并联储能型FACTS装置的PSASP建模与仿真 被引量:15
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作者 张步涵 马智泉 +4 位作者 谢光龙 曾杰 李小平 毛承雄 程时杰 《电网技术》 EI CSCD 北大核心 2010年第3期31-36,共6页
利用储能技术可以有效缓解、抑制电力系统的功率不平衡问题,提高电力系统运行水平。首先研究了结合储能设备和电力电子技术的并联储能型柔性交流输电(flexible AC transmission systems,FACTS)装置的潮流和暂态数学模型;然后在电力系统... 利用储能技术可以有效缓解、抑制电力系统的功率不平衡问题,提高电力系统运行水平。首先研究了结合储能设备和电力电子技术的并联储能型柔性交流输电(flexible AC transmission systems,FACTS)装置的潮流和暂态数学模型;然后在电力系统分析综合程序中基于注入功率法建立了潮流的用户自定义模型,暂态建模则采用节点注入电流法;最后在美国电力科学研究院7节点实验系统中加入并联储能型FACTS装置,进行潮流和暂态稳定计算。结果表明,潮流计算的收敛性良好,自定义模型通过调节无功功率较好地控制了母线电压。暂态稳定计算中并联储能型FACTS装置较好地抑制了发电机的功角摆动,有效提高了电力系统稳定性。 展开更多
关键词 并联储能型facts装置 潮流计算 暂态稳定计算 电力系统
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FACTS控制技术综述──模型,目标与策略 被引量:59
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作者 孙元章 刘前进 《电力系统自动化》 EI CSCD 北大核心 1999年第6期1-7,共7页
对FACTS的概念和作用进行了概述,分析了FACTS建模的一般方法和FACTS控制器设计的一些特点,从控制目标与控制策略的角度总结了当前国内外的最新研究成果,对几种主要FACTS控制器的作用及其控制效果进行了比较,指出实现电力系统的多目... 对FACTS的概念和作用进行了概述,分析了FACTS建模的一般方法和FACTS控制器设计的一些特点,从控制目标与控制策略的角度总结了当前国内外的最新研究成果,对几种主要FACTS控制器的作用及其控制效果进行了比较,指出实现电力系统的多目标协调控制是今后FACTS控制器设计的主要目标。 展开更多
关键词 电力系统 facts 控制器 稳定性 交流输电系统
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