| 基于变结构控制的VSC-HVDC非线性附加控制器的设计 |
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| 引用本文： | 邹超,张竞,王奔,黄北军.基于变结构控制的VSC-HVDC非线性附加控制器的设计[J].浙江电力,2008,27(5). |
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| 作者姓名： | 邹超 张竞 王奔 黄北军 |
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| 作者单位： | 1. 西南夺诵大学,成都,610031
2. 二滩水电开发有限公司,成都,610021 |
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| 摘 要： | 一种新型高压直流输电(HVDC)系统是以电压源换流器(VSC)和脉宽调制(PWM)技术为基础的,具有快速、灵活的有功功率和无功功率控制能力,能改善系统的稳定性。对VSC-HVDC系统的附加控制器进行了研究,使其达到抑制系统中区域间的低频振荡的目的。将并联的多机系统等值为两机两区域系统,直流线路功率调节用一阶惯性环节等效,建立了考虑机电振荡的三阶模型;用非线性控制理论设计了基于变结构控制的VSC-HVDC附加阻尼控制器。仿真结果表明VSC-HVDC配备该阻尼控制器后,可显著增加系统振荡阻尼,迅速恢复系统稳定。
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| 关 键 词： | 电压源 换流器 低频振荡 状态反馈 变结构 控制 |
Design of Additional Damping Controller for VSC-HVDC Transmission System Based on Variable Structure Control |
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| ZOU Chao,ZHANG Jing,WANG Ben,etc.Design of Additional Damping Controller for VSC-HVDC Transmission System Based on Variable Structure Control[J].Zhejiang Electric Power,2008,27(5). |
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| Authors: | ZOU Chao ZHANG Jing WANG Ben etc |
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| Affiliation: | ZOU Chao; ZHANG Jing; WANG Ben; etc; |
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| Abstract: | The HVDC based on voltage source converter (VSC) and pulse width modulation (PWM) is a new transmission technology which can improve power system stability due to its fast and flexibly capability to control the active and reactive power.A nonlinear auxiliary controller for VSC-HVDC in AC/DC power system is developed to damp inter-area oscillation.The method treats the dynamics of DC power regulation as a first-order inertia-block and simplifies the AC/DC multi-machine system into a two-machine power system.... |
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| Keywords: | voltage source converter low frequency oscillation state-feedback variable structure control |
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