| 引用本文: | 代林旺,李少林,秦世耀,王瑞明,宋鹏.含阻尼环节的电流源型风电虚拟同步发电机控制与分析[J].电力系统保护与控制,2019,47(14):20-27.[点击复制] |
| DAI Linwang,LI Shaolin,QIN Shiyao,WANG Ruiming,SONG Peng.Control and analysis of current-source wind turbine virtual synchronous generator with damping coefficient[J].Power System Protection and Control,2019,47(14):20-27[点击复制] |
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| 摘要: |
| 针对高比例风电电力系统频率/电压稳定性问题，介绍了虚拟同步控制的理论基础，对比分析了双馈风电机组与传统同步机数学模型。基于模型相似性推导了风电机组虚拟同步发电机的内电势、功角及功率传输方程，并揭示了其变化规律。研究了一种含阻尼环节的电流源型风电机组虚拟同步控制策略，并进行了虚拟同步控制外环和电流控制内环设计。在Matlab/Simulink中建立了双馈风电机组虚拟同步发电机仿真模型，实现了虚拟同步发电机惯量、阻尼、一次调频和无功调压特性的全过程模拟。仿真结果证实了理论分析的正确性与控制策略的有效性。 |
| 关键词: 双馈风电机组 虚拟同步发电机 转子动能 阻尼系数 内电势 功角 |
| DOI：10.7667/PSPC20191403 |
| 投稿时间：2018-08-09修订日期：2018-09-29 |
| 基金项目:国家电网公司总部科技项目资助(52010118000N) |
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| Control and analysis of current-source wind turbine virtual synchronous generator with damping coefficient |
| DAI Linwang,LI Shaolin,QIN Shiyao,WANG Ruiming,SONG Peng |
| (State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems China Electric Power Research Institute, Beijing 100192, China;State Grid Jibei Electric Power Research Institute North China Electric Power Research Institute Co., Ltd., Beijing 100045, China;Grid-connected Operation Technology for Wind-Solar-Storage Hybrid System State Grid Corporation Key Laboratory, Beijing 100045, China) |
| Abstract: |
| In order to deal with the problem of frequency/voltage stability of power system with high proportion of wind power, the theoretical basis of virtual synchronous control is introduced. The mathematical models of Doubly-Fed Induction Generator (DFIG) and traditional synchronous machines are compared and analyzed. Based on the similarity of models, the electromotive force, power angle, and power transmission equations of Wind Turbine Virtual Synchronous Generator (WT-VSG) are deduced, whose change regulations are revealed. A virtual synchronous control strategy of wind turbine with damping coefficient is researched. The design of virtual synchronous control outer loop and current control inner loop is performed. In Matlab/Simulink, the simulation model of the WT-VSG is established. The whole process simulation of the inertia, damping, primary frequency control, and reactive power-voltage regulation of the WT-VSG is realized. The simulation results confirm the correctness of the theoretical analysis and the effectiveness of the control strategy. This work is supported by Science and Technology Project of the Headquarter of State Grid Corporation of China (No. 52010118000N). |
| Key words: doubly-fed induction generator based wind turbine virtual synchronous generator rotor kinetic energy damping coefficient electromotive force power angle |
