| 引用本文: | 张 锋,陈武晖,李柯江,等.双馈风电场有功恢复控制对风火打捆系统首摆稳定性的影响及其改善控制策略[J].电力系统保护与控制,2025,53(02):136-150.[点击复制] |
| ZHANG Feng,CHEN Wuhui,LI Kejiang,et al.Impact of active recovery control on first-swing stability of a wind-fire bundling system in doubly-fed wind farms and its improvement control strategy[J].Power System Protection and Control,2025,53(02):136-150[点击复制] |
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| 摘要: |
| “风火打捆”是当前风电集中外送的重要形式之一，研究风火打捆系统暂态稳定性问题具有重要意义。针对双馈风机在故障清除后电压、电流以及功率的时变特性对风火打捆系统首摆功角稳定性的影响，建立了涵盖双馈风机动态特性的时变阻抗模型。然后应用扩展等面积定则构建了风火打捆系统等值单机无穷大模型。解析了风机有功恢复对暂态功角曲线的六种影响情况。应用等面积定则分析不同情况下有功恢复速率对系统首摆幅值的影响，揭示了不同系统参数下有功恢复速率对首摆稳定性的影响规律。基于上述理论分析，提出了改善首摆稳定性的双馈风机有功恢复控制策略。最后通过仿真验证了理论分析的正确性。 |
| 关键词: 扩展等面积定则 双馈风电场 风火打捆系统 有功恢复 首摆稳定性 |
| DOI：10.19783/j.cnki.pspc.240101 |
| 投稿时间：2024-01-22修订日期：2024-04-30 |
| 基金项目:国家自然科学基金项目资助(51977098)；新疆维吾尔自治区重大科技专项资助(2022A01007-1)；新疆电力公司科技项目资助(SGTYHT/21-JS-223) |
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| Impact of active recovery control on first-swing stability of a wind-fire bundling system in doubly-fed wind farms and its improvement control strategy |
| ZHANG Feng1,CHEN Wuhui1,LI Kejiang1,GUO Xiaolong2,XUE Ancheng3 |
| (1. College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, China; 2. State Grid
Xinjiang Control Center for Power Dispatching, Urumqi 830002, China; 3. State Key Laboratory of Alternate Electrical
Power System with Renewable Energy Sources (North China Electric Power University), Beijing 102206, China) |
| Abstract: |
| “Wind-fire bundling” is currently one of the important forms of centralized wind power transmission. Studying the transient stability issues of wind-fire bundling systems is of great significance. This paper establishes a time-varying impedance model that covers the dynamic characteristics of doubly-fed wind turbines to consider the impact of the time-varying characteristics of voltage, current, and power after fault clearance on the first swing angle stability of such bundling systems. By applying the extended equal area criterion, an equivalent single-machine infinite bus model of the wind-fire bundling system is constructed. The analysis reveals six different effects of active power restoration on transient power angle curves of wind turbines. This paper also examines the impact of active power restoration rates on the initial swing amplitude in different scenarios, uncovering the influencing rules of first swing stability with varying active power restoration rates for different system parameters. Based on the theoretical analysis, a control strategy for improving the first swing stability of doubly-fed wind turbines through active power restoration is proposed. Finally, the correctness of the theoretical analysis is verified through simulation. |
| Key words: extended equal area criterion doubly-fed wind farms wind-fire bundled system active recovery first swing stability |
