| VSC-HVDC风电并网的自抗扰无源控制策略 |
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| 引用本文： | 付永良,王奔,陈新华,邓大磊.VSC-HVDC风电并网的自抗扰无源控制策略[J].南方电网技术,2013,7(4):19-23. |
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| 作者姓名： | 付永良 王奔 陈新华 邓大磊 |
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| 作者单位： | 德州供电公司，山东 德州 253008;西南交通大学 电气工程学院，成都610031;德州供电公司，山东 德州 253008;西南交通大学 电气工程学院，成都610031 |
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| 摘 要： | 针对风电并网的轻型高压直流(VSC-HVDC)输电系统的变流器具有非线性强耦合的特点，单一的控制策略难以满足并网的需求。首先将VSC-HVDC的换流站模型等效成一个具有耗散性质的无源系统，采用端口受控耗散哈密顿系统(PCHD)模型，设计了一种基于互联与阻尼配置的无源控制器来追踪参考电流，同时，为增强系统的鲁棒性，采用自抗扰控制来确定相应的外环电流参考值，最终实现风电的可靠并网。仿真结果表明了自抗扰无源控制为基于VSC-HVDC的风电并网控制提供了一种新的解决方案。
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| 关 键 词： | 风电并网 高压直流输电 能量函数 无源控制 自抗扰控制 |
The Passive Control ADRC Strategy for Connection of Wind Farm and Power Grid with VSC-HVDC System |
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| FU Yongliang,WANG Ben,CHEN Xinhua and DENG Dalei.The Passive Control ADRC Strategy for Connection of Wind Farm and Power Grid with VSC-HVDC System[J].Southern Power System Technology,2013,7(4):19-23. |
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| Authors: | FU Yongliang WANG Ben CHEN Xinhua and DENG Dalei |
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| Affiliation: | Dezhou Power Supply Company, Dezhou, Shandong 253008, China L;School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China;Dezhou Power Supply Company, Dezhou, Shandong 253008, China L;School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | The nonlinear strong coupling characteristics of converter in VSC-HVDC transmission system make the single control strategy difficult to meet the needs of the grid. The proposed scheme makes the VSC-HVDC converter station model equivalent to a dissipative passive system. By choosing the Port-Controlled Hamilton with Dissipation (PCHD) model, the paper proposes a new passive control strategy of Voltage Sourced Converter based on interconnection and damping configuration to trace reference currents. To enhance the system robustness, auto-disturbances-rejection control is used to determine the current reference value, and finally the reliable grid connection of wind farms is realized. The simulation results show that the passive controller provides a novel high performance control solution to VSC-HVDC systems for grid connection of wind farms. |
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| Keywords: | grid connection of wind farms high-voltage-direct-current (HVDC) energy function passive control active disturbance rejection control |
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