| 引用本文: | 田晓煜,赵海宇,翟文辉,等.适用于混合风电场频率电压支撑的分布式自适应解耦控制[J].电力系统保护与控制,2025,53(6):126-139.[点击复制] |
| TIAN Xiaoyu,ZHAO Haiyu,ZHAI Wenhui,et al.Distributed adaptive decoupling control for frequency-voltage support in hybrid wind farms[J].Power System Protection and Control,2025,53(6):126-139[点击复制] |
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| 摘要: |
| 跟网型风机与构网型风机共同构成的混合风电场具有宽短路比范围稳定运行的优势，但是在弱电网下存在频率电压控制交互影响难以协同支撑的问题。在分析了跟/构网型变流器的频率电压动态耦合特性机理的基础上，提出了一种适用于混合风电场频率电压支撑的分布式自适应解耦控制。该控制由风机间分布式协同控制和风机内部单元级频率电压解耦自适应控制的两个控制层级构成。分布式控制使得各风机保持一致性协同输出，最大化利用各风机的转子动能。自适应控制从风机内部层级考虑混合风电场各风机的运行状态，实现了风电场在保持稳定的基础上充分利用风电场的调节能力。最后，解耦补偿控制对跟/构网型风机进行有功无功前馈解耦，抑制了频率电压支撑过程中的交互影响。在Matlab/Simulink仿真平台搭建了混合风电场接入的四机两区域系统。仿真结果验证了混合风电场频率-电压支撑控制的可行性和先进性。 |
| 关键词: 分布式自适应控制 频率电压协同 相量动态过程 混合风电场 构网型控制 |
| DOI：10.19783/j.cnki.pspc.240670 |
| 投稿时间：2024-05-29修订日期：2025-02-01 |
| 基金项目:国家重点研发计划项目资助(2022YFB4202304)；国家重点研发配套项目资助(5230HQ23000D)“风电和光伏发电系统的频率快速响应和电压主动支撑协同优化” |
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| Distributed adaptive decoupling control for frequency-voltage support in hybrid wind farms |
| TIAN Xiaoyu1,ZHAO Haiyu2,ZHAI Wenhui1,YAO Wei2,CHANG Xiqiang1,KANG Pengpeng1,YANG Guixing1 |
| (1. State Grid Xinjiang Electric Power Co., Ltd., Urumqi 830018, China; 2. State Key Laboratory of Advanced
Electromagnetic Engineering and Technology (School of Electrical and Electronic Engineering,
Huazhong University of Science and Technology), Wuhan 430074, China) |
| Abstract: |
| Hybrid wind farms, composed of grid-following and grid-forming turbines, have the advantage of stable operation across a wide range of short-circuit ratio. However, the interaction of frequency and voltage control in a weak grid poses challenges in achieving coordinated support. Based on analyzing the mechanism of frequency-voltage dynamic coupling characteristics in grid-following and grid-forming converters, a distributed adaptive decoupling control suitable for frequency-voltage support in hybrid wind farms is proposed. The proposed control strategy consists of two control hierarchical levels: distributed cooperative control among turbines and adaptive frequency-voltage decoupling control at the unit level within individual turbines. The distributed control ensures coordinated and consistent output among turbines, maximizing the utilization of rotor kinetic energy. Meanwhile, the adaptive control considers the operating state of each turbine within the wind farm, enabling effective regulation while maintaining stability. Finally, the decoupling compensation control decouples the active and reactive power feedforward of the grid-following and grid-forming wind turbines. This suppresses the interaction effects during frequency-voltage support. A hybrid wind farm connected to a four-machine two-region system is built on the Matlab/Simulink simulation platform. The simulation results verify the feasibility and advancement of the proposed frequency-voltage support control for hybrid wind farms. |
| Key words: distributed adaptive control frequency-voltage synergy phasor dynamic process hybrid wind farm grid-forming control |
