| 考虑直流侧电容存储能量的风电机组虚拟惯性控制策略 |
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| 引用本文： | 杨立滨,宗鸣,李春来.考虑直流侧电容存储能量的风电机组虚拟惯性控制策略[J].可再生能源,2020,38(6):798-803. |
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| 作者姓名： | 杨立滨 宗鸣 李春来 |
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| 作者单位： | 沈阳工业大学 电气工程学院,辽宁 沈阳 110870;国网青海省电力公司清洁能源发展研究院,青海 西宁810008;沈阳工业大学 电气工程学院,辽宁 沈阳 110870 |
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| 基金项目： | 国家重点研发计划;青海省创新平台建设专项 |
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| 摘 要： | 文章在传统转子动能虚拟惯性控制策略基础上,提出了一种考虑直流侧电容存储能量的风电机组虚拟惯性控制策略。该策略在建立转子动能和系统频率偏差关系的基础上,建立了风电变流器直流侧电容电压和系统频率偏差的函数关系,在频率事件下能够充分利用电容所存储的能量来增强电网的惯性,提高电网的频率调节能力。最后,通过PSCAD/EMTDC仿真验证了所提控制策略的有效性。
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| 关 键 词： | 风电机组 虚拟惯量 转子动能 电容电压 频率调节 |
Virtual inertia control strategy of wind turbine generationconsidering the stored energy of DC capacitor |
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| Yang Libin,Zong Ming,Li Chunlai.Virtual inertia control strategy of wind turbine generationconsidering the stored energy of DC capacitor[J].Renewable Energy,2020,38(6):798-803. |
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| Authors: | Yang Libin Zong Ming Li Chunlai |
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| Affiliation: | (School of Electrical Engineering,Shenyang University of Technology,Shenyang 110870,China;State Grid Qinghai Electric Power Company Clean Energy Development Institute,Xining 810008,China) |
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| Abstract: | Based on the traditional virtual kinetic inertia control strategy of rotor kinetic energy,this paper proposes a virtual inertia control strategy for wind turbines that takes into account the stored energy of DC-side capacitors.Based on the relationship between rotor kinetic energy and system frequency deviation,this strategy establishes a function relationship between the DC side capacitor voltage of the wind power converter and the system frequency deviation,so that the energy stored in the capacitor can be used to enhance the inertia of the power grid under frequency events,thus to improve the frequency adjustment ability of the power grid.Finally,the effectiveness of the proposed control strategy is verified by PSCAD/EMTDC simulation. |
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| Keywords: | wind turbine virtual inertia rotor kinetic energy capacitor voltage frequency regulation |
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