| 引用本文: | 陈厚合,鲁华威,王长江,林楚乔,郭艳春,张嵩.抑制直流送端系统暂态过电压的直流和风电控制参数协调优化[J].电力自动化设备,2020,40(0): |
| CHEN Houhe,LU Huawei,WANG Changjiang,LIN Chuqiao,GUO Yanchun,ZHANG Song.Coordinated optimization of HVDC and wind power control parameters for mitigating transient overvoltage on HVDC sending-side system[J].Electric Power Automation Equipment,2020,40(0): |
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| 摘要: |
| 为抑制风电经高压直流外送方式下的直流送端系统暂态过电压，提出一种直流和风电控制参数协调优化方法。首先，从整流站与风电场之间的无功转换角度分析了直流送端系统暂态过电压的产生机理，进而从系统无功特性入手研究了直流整流侧、风电转子侧变流器控制参数影响暂态过电压的机理，为抑制暂态过电压的控制参数协调优化提供了理论依据。然后，构建了以直流送端系统暂态过电压峰值最小为目标的优化模型，通过联合调用的方式，可在电磁暂态模型准确模拟交直流系统电磁暂态过程的基础上，进一步采用改进粒子群优化算法协调优化直流和风电控制参数，从而有效抑制直流送端系统暂态过电压。最后，通过修改后的4机11节点系统和新英格兰39节点系统的仿真分析，验证了所提方法的有效性和准确性。 |
| 关键词: 暂态过电压 高压直流输电 风电 控制参数 协调优化 |
| DOI：10.16081/j.epae.202007026 |
| 分类号:TM721.1;TM614 |
| 基金项目:国家电网公司科技项目(千万千瓦级分层接入直流送受端系统动态行为机理和协调控制措施研究)(SGTYHT17-JS-199) |
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| Coordinated optimization of HVDC and wind power control parameters for mitigating transient overvoltage on HVDC sending-side system |
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CHEN Houhe1, LU Huawei1, WANG Changjiang1, LIN Chuqiao1,2, GUO Yanchun3, ZHANG Song1
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1.School of Electrical Engineering, Northeast Electric Power University, Jilin 132012, China;2.Changchun Power Supply Company of State Grid Jilin Electric Power Company, Changchun 130000, China;3.Songyuan Power Supply Company of State Grid Jilin Electric Power Company, Songyuan 138000, China
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| Abstract: |
| In order to mitigate the sending-side transient overvoltage that is caused by the wind power transferred through HVDC(High Voltage Direct Current),an optimization approach to coordinate the HVDC and wind power control parameters is developed. Firstly, the transient overvoltage mechanism of HVDC sending-side system from the perspective of reactive conversion between rectifier station and wind power plant is analyzed, and then the control parameter impact mechanism of both HVDC rectifier-side and wind power rotor-side converters on the transient overvoltage in terms of the reactive characteristics of system is analyzed. This provides theoretical basis for the coordinated optimization of control parameters to mitigate transient overvoltage. Secondly, an optimization model that minimizes the peak value of transient overvoltage of HVDC sending-side system is established. Through combined invocation, the improved particle swarm optimization algorithm is further employed for the coordinated optimization of HVDC and wind power control parameters, which utilizes the accurate simulation of electromagnetic transient process of AC/DC system by using electromagnetic transient model. Finally, simulative results of modified 4-machine 11-bus system and New England 39-bus system verify the effectiveness and accuracy of the proposed method. |
| Key words: transient overvoltage HVDC power transmission wind power control parameters coordinated optimization |
