| 交直流并联系统稳定器与附加控制器协调控制设计 |
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| 引用本文： | 魏伟.交直流并联系统稳定器与附加控制器协调控制设计[J].广东电力,2007,20(8):23-26,46. |
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| 作者姓名： | 魏伟 |
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| 作者单位： | 广东省电力试验研究所,广州,510600 |
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| 摘 要： | 针对具有低频振荡现象的交直流并联系统,建立了单机无穷大系统的小干扰线性化模型,在对其进行低频振荡机理分析的基础上,设计了电力系统稳定器 (PSS)和直流附加控制器 (DCM)进行直流调制.当两种控制器分别控制和协调控制时,对低频振荡的抑制作用进行了比较,结果证明对于含有直流线路的系统,应该利用PSS和DCM协调控制,才能较好地抑制低频振荡.
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| 关 键 词： | 低频振荡 交直流 电力系统稳定器 直流附加控制 |
| 文章编号： | 1007-290X（2007）08-0023-04 |
| 收稿时间： | 2007-04-16 |
| 修稿时间： | 2007-04-16 |
Design of Coordinated Control by Power System Stabilizer and DC Modulator in AC-DC Parallel System |
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| WEI Wei.Design of Coordinated Control by Power System Stabilizer and DC Modulator in AC-DC Parallel System[J].Guangdong Electric Power,2007,20(8):23-26,46. |
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| Authors: | WEI Wei |
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| Abstract: | Aiming at the low-frequency oscillation of AC-DC parallel system,the linearized model of one-machine infinite bus(OMIB) system with small disturbance is established.Upon analysis of the mechanism of its low-frequency oscillation,the coordinated control by the power system stabilizer(PSS) and the DC modulator(DCM) is designed.A comparison is also made of the effects on damping the low-frequency oscillation when the PSS and the DCM are respectively and simultaneously in operation.The result shows that to damp low-frequency oscillation of the system with DC circuitry better,the PSS and the DCM should be used harmoniously. |
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| Keywords: | low-frequency oscillation AC/ DC power system stabilizer(PSS) DC modulator(DCM) |
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