电子测量与仪器学报

程启明,沈章平,程尹曼,赖宇生,张昕.基于虚拟同步发电机和无源性控制的DFIG 机侧控制策略[J].电子测量与仪器学报,2023,37(3):141-151

基于虚拟同步发电机和无源性控制的DFIG 机侧控制策略

Virtual synchronous generator and PBC based cascaded control for DFIG rotor-side converter

DOI：

中文关键词: 双馈感应发电机虚拟同步发电机 Washout 滤波器端口受控的耗散哈密顿无源性控制

英文关键词:doubly-fed induction generator (DFIG) virtual synchronous generator (VSG) washout filter port controlled hamiltonian with dissipation (PCHD) passivity-based control (PBC)

基金项目:国家自然科学基金(61905139)、上海市电站自动化技术重点实验室项目(13DZ2273800)资助

作者	单位
程启明	1. 上海电力大学自动化工程学院，2. 上海市电站自动化技术重点实验室
沈章平	1. 上海电力大学自动化工程学院，2. 上海市电站自动化技术重点实验室
程尹曼	3. 上海电力公司市北供电分公司
赖宇生	1. 上海电力大学自动化工程学院，2. 上海市电站自动化技术重点实验室
张昕	1. 上海电力大学自动化工程学院，2. 上海市电站自动化技术重点实验室

Author	Institution
Cheng Qiming	1. College of Automation Engineering, Shanghai University of Electric Power,2. Shanghai Key Laboratory Power Station Automation Technology Laboratory
Shen Zhangping	1. College of Automation Engineering, Shanghai University of Electric Power,2. Shanghai Key Laboratory Power Station Automation Technology Laboratory
Cheng Yinman	3. North Power Supply Branch Shanghai Electric Power Company
Lai Yusheng	1. College of Automation Engineering, Shanghai University of Electric Power,2. Shanghai Key Laboratory Power Station Automation Technology Laboratory
Zhang Xin	1. College of Automation Engineering, Shanghai University of Electric Power,2. Shanghai Key Laboratory Power Station Automation Technology Laboratory

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中文摘要:

传统的双馈感应发电机(doubly-fed induction generator,DFIG)矢量控制因其惯性与电网频率波动解耦而不能为电网提供额外的有功功率支持,为此在 DFIG 转子侧变流器控制中引入一种改进的虚拟同步发电机(virtual synchronous generator,VSG) 控制策略。针对传统 VSG 控制存在的频率偏差问题,通过在有功下垂环节中加入一个 Washout 滤波器,实现了在不需要增加额外 2 次控制回路情况下就能使频率保持在工频 50 Hz 附近。同时,为解决传统 VSG 中电压电流双环控制中内环电流 PI 控制存在的动态响应有限、鲁棒性不强等问题,首次在内环电流控制中引入了基于端口受控的耗散哈密顿( port controlled Hamiltonian with dissipation,PCHD)模型的无源性控制(passivity-based control,PBC)方法,设计了转子侧变流器的无源性控制器。最后,搭建了 DFIG 仿真系统进行实验验证,结果表明了本文所提控制策略的有效性和优越性。

英文摘要:

With the popularity of renewable energy generators in the power grid, the traditional doubly-fed induction generator (DFIG) vector control strategy did not provide additional active power support for the power grid due to the decoupling of inertia and power grid frequency fluctuation. To solve this problem, an improved virtual synchronous generator (VSG) control strategy is introduced into the rotor-side converter (RSC) control of doubly-fed wind turbines. Aiming at the frequency deviation problem existing in the traditional VSG control strategy, a Washout filter is applied in the P-f droop link, which can keep the frequency at the stable power frequency of 50 Hz without adding additional secondary control loop. At the same time, in order to solve the problems of limited dynamic response and poor robustness of the inner loop of voltage and current control based on internal proportional integral ( PI) control in traditional VSG, the port controlled hamiltonian with dissipation (PCHD) is used for the first time in this paper. The interconnection and damping assignment passivity based-control ( IDA-PBC) method of PCHD model was applied to the inner loop current control. A passive controller for rotor side converter (RSC) inverter is designed. Finally, a simulation system is built for experimental verification, and the results show the effectiveness and superiority of the proposed control strategy.

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