摘要
针对风电系统电能质量与系统效率不高问题,以直驱式风力发电机与含储能装置输出端组成的发电系统为研究对象,采取实验与仿真相结合法,探究储能对电能质量的影响规律,并基于分析法开展系统各部分损分析,进一步探寻提高系统效率的有效途径。研究结果表明:储能环节能够不同程度地降低电压波动、电压偏差、频率偏差,提升功率因数,改善系统电能质量;借助分析法可有效评判风电系统能量分配与管控特性;此外变换蓄电池充放电状态,改变永磁发电机转速和负载类型,能够达到提高效率的目的。
In order to solve the problem of low power quality and efficiency of wind power system,the power generation system composed of direct drive wind power generator and energy storage device is chosen as the research object.The combination of experiment and simulation is used to analyze the influence of energy storage on power quality.Based on the exergy analysis method,exergy destruction of each part is analyzed to find an effective way to improve the efficiency of the system.The results show that the voltage fluctuation,voltage deviation and frequency deviation are alleviated,and the power factor and power quality are improved because of the energy storage.The energy distribution and control characteristics of wind power system can be effectively evaluated through exergy analysis.In addition,the efficiency is improved by changing the state of battery charge and discharge or changing the speed and load type of permanent magnet generator.
作者
温彩凤
高祥雨
曹阳
苏文涛
谢婉冰
汪建文
Wen Caifeng;Gao Xiangyu;Cao Yang;Su Wentao;Xie Wanbing;Wang Jianwen(College of Energy and Power Engineering,Inner Mongolia University of Technology,Hohhot 010051,China;Key Laboratory of Wind Energy and Solar Energy Utilization Technology of Ministry of Education,Hohhot 010051,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2020年第7期85-91,共7页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51966013)
内蒙古自然科学基金(2019MS05024)
风能太阳能利用技术教育部重点实验室(内蒙古工业大学)开放基金重点项目(2018ZD04)。
关键词
风力发电机
储能
电能质量
分析法
效率
wind power generator
energy storage
power quality
exergy analysis method
exergy efficiency
