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Dynamic reactive power planning method for CSP-PV hybrid power generation system
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作者 ZHANG Hong DONG Hai-ying +2 位作者 CHEN Zhao HUANG Rong DING Kun 《Journal of Measurement Science and Instrumentation》 CAS CSCD 2020年第3期258-266,共9页
Aiming at the faults of some weak nodes in the concentrated solar power-photovoltaic(CSP-PV)hybrid power generation system,it is impossible to restore the transient voltage only relying on the reactive power regulatio... Aiming at the faults of some weak nodes in the concentrated solar power-photovoltaic(CSP-PV)hybrid power generation system,it is impossible to restore the transient voltage only relying on the reactive power regulation capability of the system itself.We propose a dynamic reactive power planning method suitable for CSP-PV hybrid power generation system.The method determines the installation node of the dynamic reactive power compensation device and its compensation capacity based on the reactive power adjustment capability of the system itself.The critical fault node is determined by the transient voltage stability recovery index,and the weak node of the system is initially determined.Based on this,the sensitivity index is used to determine the installation node of the dynamic reactive power compensation device.Dynamic reactive power planning optimization model is established with the lowest investment cost of dynamic reactive power compensation device and the improvement of system transient voltage stability.Furthermore,the component of the reactive power compensation node is optimized by particle swarm optimization based on differential evolution(DE-PSO).The simulation results of the example system show that compared with the dynamic position compensation device installation location optimization method,the proposed method can improve the transient voltage stability of the system under the same reactive power compensation cost. 展开更多
关键词 transient voltage recovery index sensitivity index dynamic reactive power planning optimization particle swarm optimization based on differential evolution(DE-PSO)
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Hybrid intelligence approach for multi-load level reactive power planning using VAR compensator in power transmission network 被引量:3
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作者 Nihar Karmakar Biplab Bhattacharyya 《Protection and Control of Modern Power Systems》 2021年第1期330-346,共17页
This paper formulates and solves a techno-economic planning problem of reactive power (VAR) in power transmission systems under loadings. The objective of the proposed research work is to minimize the combination of i... This paper formulates and solves a techno-economic planning problem of reactive power (VAR) in power transmission systems under loadings. The objective of the proposed research work is to minimize the combination of installation cost of reactive power sources, power losses and operational cost while satisfying technical constraints. Initially, the positions for the placement of reactive power sources are determined technically. Different cost components such as VAR generation cost, line charging cost etc. are then added in the total operating cost in a most economical way. Finally, the optimal parameter setting subjected to reactive power planning (RPP) is obtained by taking advantages of hybrid soft computing techniques. For the justification of the efficiency and efficacy of the proposed approach the entire work is simulated on two inter-regional transmission networks. To validate the robustness and ease of the soft computing techniques in RPP the responses of benchmark functions and statistical proof are provided simultaneously. 展开更多
关键词 Active power loss Reactive power planning Hybrid algorithm Line charging Operating cost
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Specific Problems in the Planning and Development of Power Network in China
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作者 张运洲 《Electricity》 2003年第4期23-26,共4页
In light of the situation that the nationwide interconnection of power networks in China in the coming years will take shape, it is imperative to emphasize the importance of setting up rational power network configura... In light of the situation that the nationwide interconnection of power networks in China in the coming years will take shape, it is imperative to emphasize the importance of setting up rational power network configuration. Combined with the characteristics of regional power networks in China, problems in network planning that need to be solved are put forward in this paper, such as, the access of power plants to grid by layers and zones, the share of external power in the load of local network, the power network configuration study in-depth in planning and design stage, and enforcement of receiving-end power network trunk etc. The background of these problems and their countermeasures are also analyzed in the paper. 展开更多
关键词 power network planning power network configuration INTERCONNECTION
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Power system planning with high renewable energy penetration considering demand response 被引量:4
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作者 Peng Wang Ershun Du +2 位作者 Ning Zhang Xinzhi Xu Yi Gao 《Global Energy Interconnection》 CAS CSCD 2021年第1期69-80,共12页
Electric system planning with high variable renewable energy(VRE)penetration levels has attracted great attention world-wide.Electricity production of VRE highly depends on the weather conditions and thus involves lar... Electric system planning with high variable renewable energy(VRE)penetration levels has attracted great attention world-wide.Electricity production of VRE highly depends on the weather conditions and thus involves large variability,uncertainty,and low-capacity credit.This gives rise to significant challenges for power system planning.Currently,many solutions are proposed to address the issue of operational flexibility inadequacy,including flexibility retrofit of thermal units,inter-regional transmission,electricity energy storage,and demand response(DR).Evidently,the performance and the cost of various solutions are different.It is relevant to explore the optimal portfolio to satisfy the flexibility requirement for a renewable dominated system and the role of each flexibility source.In this study,the value of diverse DR flexibilities was examined and a stochastic investment planning model considering DR is proposed.Two types of DRs,namely interrupted DR and transferred DR,were modeled.Chronological load and renewable generation curves with 8760 hours within a whole year were reduced to 4 weekly scenarios to accelerate the optimization.Clustered unit commitment constraints for accommodating variability of renewables were incorporated.Case studies based on IEEE RTS-96 system are reported to demonstrate the effectiveness of the proposed method and the DR potential to avoid energy storage investment. 展开更多
关键词 Demand response High renewable penetration Operational flexibility power system planning
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Models and Methods for Urban Power Distribution Network Planning 被引量:1
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作者 余贻鑫 王成山 +3 位作者 葛少云 肖俊 严雪飞 黄纯华 《Transactions of Tianjin University》 EI CAS 2004年第2期91-97,共7页
The models, methods and their application experiences of a practical GIS(geographic information system)-based computer decision-making support system of urban power distribution network planning with seven subsystems,... The models, methods and their application experiences of a practical GIS(geographic information system)-based computer decision-making support system of urban power distribution network planning with seven subsystems,termed CNP,are described.In each subsystem there is at least one or one set of practical mathematical methobs.Some new models and mathematical methods have been introduced.In the development of CNP the idea of cognitive system engineering has been insisted on,which claims that human and computer intelligence should be combined together to solve the complex engineering problems cooperatively.Practical applications have shown that not only the optimal plan can be automatically reached with many complicated factors considered, but also the computation,analysis and graphic drawing burden can be released considerably. 展开更多
关键词 decision support system geographic information system(GIS) power distribution network planning cognitive system engineering
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Southwest Power System Development Planning
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《Electricity》 1999年第4期3-7,共5页
关键词 2010 KV Southwest power System Development planning
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Power Sources Planning, Construction and Operation
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《Electricity》 2001年第3期26-40,共15页
关键词 Construction and Operation power Sources planning
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Power Generation Expansion Planning Using an Interior Point with Cutting Plane (IP/CP) Method
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作者 Moon, Guk-Hyun Seo, In-Yong Jaehee, Lee 《Journal of Mechanics Engineering and Automation》 2015年第11期640-645,共6页
The generation expansion planning is one of complex mixed-integer optimization problems, which involves a large number of continuous or discrete decision variables and constraints. In this paper, an interior point wit... The generation expansion planning is one of complex mixed-integer optimization problems, which involves a large number of continuous or discrete decision variables and constraints. In this paper, an interior point with cutting plane (IP/CP) method is proposed to solve the mixed-integer optimization problem of the electrical power generation expansion planning. The IP/CP method could improve the overall efficiency of the solution and reduce the computational time. Proposed method is combined with the Bender's decomposition technique in order to decompose the generation expansion problem into a master investment problem and a slave operational problem. The numerical example is presented to compare with the effectiveness of the proposed algorithm. 展开更多
关键词 Benders' decomposition technique power generation expansion planning interior point with cutting plane method mixed integer programming.
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Overall Planning of Public Power and Expression of Private Rights in Cross-regional Trading of Construction Land Quotas
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作者 Hong Yun 《Contemporary Social Sciences》 2021年第3期45-56,共12页
In China, the trading of construction land quotas has undergone an institutional evolution process characterized by gradual deregulation.In 2021, the Central Committee of the Communist Party of China(CPC) resolved to ... In China, the trading of construction land quotas has undergone an institutional evolution process characterized by gradual deregulation.In 2021, the Central Committee of the Communist Party of China(CPC) resolved to develop a national cross-regional trading mechanism for construction land quotas.Construction land quotas, which have attributes of both public power and private rights, share certain common grounds with the rights of land development, dumping and carbon emission.To build a national trading market for construction land quotas, it is necessary to make clarifications and innovations in macro-level ideas, meso-level mechanisms, and micro-level designs. 展开更多
关键词 construction land quotas overall planning of public power expression of private rights
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The Principles and Methods of Power Development Planning in the Market Economic Situation of China
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《Electricity》 1999年第1期7-9,24,共4页
关键词 The Principles and Methods of power Development planning in the Market Economic Situation of China
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Planning Study on National Power Grid Interconnection Centered on Three Gorges Hydropower Station
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作者 Zhou Xiaoqian(President, China Power Crid Construction Corporation) 《Electricity》 1999年第2期2-3,共2页
关键词 planning Study on National power Grid Interconnection Centered on Three Gorges Hydropower Station GRID
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State Key Power Construction Projects in 1999 Issued from the State Development Planning Commission
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《Electricity》 1999年第3期35-35,共1页
关键词 State Key power Construction Projects in 1999 Issued from the State Development planning Commission
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Ten Focal Problems inthe 10th Five-Year Power Plan
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作者 吴敬儒 《Electricity》 2001年第4期3-7,共5页
In view of that the average electricity consumption per capita is still rather low in China, this paper putsforward ten focal problems in the 10th Five-year Power Plan, including optimized allocation of power sources ... In view of that the average electricity consumption per capita is still rather low in China, this paper putsforward ten focal problems in the 10th Five-year Power Plan, including optimized allocation of power sources and powernetworks, environmental protection in coal-fired power plants, as well as localization of power equipment, etc. 展开更多
关键词 the 10th Five-year power Plan power industry in China power planning power construction
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Operation and Development of Grid-Integrated Jiuquan Wind Power Base
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作者 He Shien Wind Power Technical Center, Gansu Electric Power Corporation Zhu Li 《Electricity》 2011年第1期38-42,共5页
In this paper the author describes the current development of tbe 10-GW wind power base in Jiuquan, Gansu Province. The.future planning of the wind power base and the relevant power grid are also introduced based on t... In this paper the author describes the current development of tbe 10-GW wind power base in Jiuquan, Gansu Province. The.future planning of the wind power base and the relevant power grid are also introduced based on the assessment on the wind resources and the wind power operation with the grid. 展开更多
关键词 wind power base wind power integration wind power planning
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A Study of Power Sources Optimization in Guangdong
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作者 陈志刚 郑忠信 +1 位作者 黄仕云 邓雪原 《Electricity》 2001年第4期16-21,共6页
The main problem existing in Guangdong electric power sources is analyzed in this paper. Based on theanalysis on energy-supply features, power demand and the technical and economic performances of various powersource... The main problem existing in Guangdong electric power sources is analyzed in this paper. Based on theanalysis on energy-supply features, power demand and the technical and economic performances of various powersources in Guangdong, the power sources construction scale and its structure are studied and analyzed in detail byusing Generation Expansion Software Package (GESP). The future development of Guangdong electric power sourcesunder the new situation of "Power from West to East" is studied as well.[ 展开更多
关键词 power sources optimization power demand and supply sensibility analysis planning
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Five Major Concerns about China’s Wind Power Development
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作者 Wu Jiang State Electricity Regulatory Commission Zhu Li 《Electricity》 2010年第3期43-47,共5页
Economic issue is the very focus of China's wind power development.Although all the security problems can be dealt with through technical measures,the compensation for supportive thermal power units and the subsid... Economic issue is the very focus of China's wind power development.Although all the security problems can be dealt with through technical measures,the compensation for supportive thermal power units and the subsidy from economically developed regions to resource-outputting regions would require a higher level of strategic considerations.The core purpose of developing wind energy is to reduce pollutant emissions,so planners should take into account the overall cost of all sides,without touching the bottom of social affordability. 展开更多
关键词 power planning wind power capacity balance auxiliary service
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Multi-objective coordination optimal model for new power intelligence center based on hybrid algorithm 被引量:1
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作者 刘吉成 牛东晓 乞建勋 《Journal of Central South University》 SCIE EI CAS 2009年第4期683-689,共7页
In order to resolve the coordination and optimization of the power network planning effectively, on the basis of introducing the concept of power intelligence center (PIC), the key factor power flow, line investment a... In order to resolve the coordination and optimization of the power network planning effectively, on the basis of introducing the concept of power intelligence center (PIC), the key factor power flow, line investment and load that impact generation sector, transmission sector and dispatching center in PIC were analyzed and a multi-objective coordination optimal model for new power intelligence center (NPIC) was established. To ensure the reliability and coordination of power grid and reduce investment cost, two aspects were optimized. The evolutionary algorithm was introduced to solve optimal power flow problem and the fitness function was improved to ensure the minimum cost of power generation. The gray particle swarm optimization (GPSO) algorithm was used to forecast load accurately, which can ensure the network with high reliability. On this basis, the multi-objective coordination optimal model which was more practical and in line with the need of the electricity market was proposed, then the coordination model was effectively solved through the improved particle swarm optimization algorithm, and the corresponding algorithm was obtained. The optimization of IEEE30 node system shows that the evolutionary algorithm can effectively solve the problem of optimal power flow. The average load forecasting of GPSO is 26.97 MW, which has an error of 0.34 MW compared with the actual load. The algorithm has higher forecasting accuracy. The multi-objective coordination optimal model for NPIC can effectively process the coordination and optimization problem of power network. 展开更多
关键词 power intelligence center (PIC) coordination optimal model power network planning hybrid algorithm
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Study of future power interconnection scheme in ASEAN 被引量:2
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作者 Han Jiang Yi Gao +1 位作者 Pengfei Xu Jun Li 《Global Energy Interconnection》 2019年第6期550-560,共11页
The current energy supply trajectory in the Association of Southeast Asian Nations(ASEAN)region is not sustainable.Factors such as rising standards of living and demographic patterns,including population growth,lead t... The current energy supply trajectory in the Association of Southeast Asian Nations(ASEAN)region is not sustainable.Factors such as rising standards of living and demographic patterns,including population growth,lead to continuous increase in power demand,which is difficult to meet using limited fossil fuel resources.Thus,a transition toward clean energy sources is needed in the region.While ASEAN member countries are rich in clean energy resources,such resources are located far from demand centers;thus,allocation of clean energy is necessary to increase its utilization.In this study,power demand is forecasted using a combination of prediction methods.A model to evaluate the installed capacity and power exchange potential is proposed to deal with mismatch between the location of the clean energy base and the load center.Furthermore,the concept of cross-regional allocation of clean energy between the ASEAN region,China,and South Asia is presented.A power interconnection scheme among the ASEAN member countries as well as neighboring countries is proposed based on the power exchange potential.The proposed grid interconnection scheme contributes to the utilization of clean energy in the ASEAN region,increasing the proportion of clean energy in the generation mix,which ensures that the region becomes a sustainable and resilient society with a clean and low carbon development route.Furthermore,the proposed power interconnection scheme will generate valuable economic,social,environmental,and resource allocation benefits. 展开更多
关键词 power intercon nection power demand In stalled capacity plan ning power excha nge potential plan ning ASEAN
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The Role of Countermeasures in Mitigating the Radiological Consequences of Nuclear Power Plant Accidents 被引量:1
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作者 F.S. Tawfik M.M. Abdel-Aal 《Journal of Environmental Science and Engineering》 2011年第7期920-924,共5页
The countermeasures are the actions that should be taken, after the occurrence of a nuclear accident to protect the public against the associated risks. These actions may be represented by sheltering, evacuation, dist... The countermeasures are the actions that should be taken, after the occurrence of a nuclear accident to protect the public against the associated risks. These actions may be represented by sheltering, evacuation, distribution of stable iodine tablets and/or relocation. This study represents a comprehensive probabilistic study to investigate the role of the adoption of the countermeasures in case of a hypothetical accident of type LOCA for nuclear power plant of PWR (1000 Mw). The effective doses in different organs, short and long health effects, and the associated risks are calculated with and without countermeasures. In addition, the overall costs of the accident and the costs of countermeasures are estimated which represent our first trials to know how much the proposed accident cost. The results showed that, the area around the site requires early and late countermeasures action after the accident especially in the downwind sectors. For late countermeasures, the duration time of relocation ranged from about two to 10 years. The adoption of the countermeasures increases the costs of emergency plan by 40% but reduces the risk associated the accident. 展开更多
关键词 LOCA accident probabilistic risk assessments emergency plan in nuclear power plants.
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Study on Adoption of 750 kV Voltage Class in Northwest China Power Network
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作者 钱家骧 王森 《Electricity》 2001年第4期12-15,共4页
This paper introduces the selection and scheme demonstration of higher voltage class in Northwest ChinaPower Network, and conclusions made by main research institutes and experts’ comments.[
关键词 power network planning power network construction feasibility study 750 kV extra-high voltage
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