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首页> 外文会议>2016 International Conference on Electrical Power and Energy Systems >Modified instantaneous p-q theory for single phase DVR for mitigation of voltage sag in case of nonlinear load
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Modified instantaneous p-q theory for single phase DVR for mitigation of voltage sag in case of nonlinear load

机译：修正的单相DVR瞬时p-q理论，用于缓解非线性负载情况下的电压暂降

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摘要

This paper describes the detail study of modified controller based on single phase instantaneous reactive power theory (IRPT) and its application to dynamic voltage restorer (DVR) for both linear and nonlinear load. In this paper systematic study of the controller is presented and suggested an effective control theory for single phase DVR. The controller concept is based on the correction of load voltage without any change in phase. A detailed analysis of modified single phase instantaneous reactive power theory is carried out. The modified controller is based on proportional integral (PI) gains to mitigate single phase voltage sag. The digital simulation of DVR connected single phase system has been performed using MATLAB for both linear and nonlinear load to prove the effectiveness of the modified controller. The simulation results indicates that the proposed controller can restore single phase voltage sag effectively.
机译：本文详细介绍了基于单相瞬时无功功率理论（IRPT）的改进型控制器及其在线性和非线性负载的动态电压恢复器（DVR）中的应用。本文介绍了控制器的系统研究，并提出了一种有效的单相DVR控制理论。控制器的概念是基于负载电压的校正而没有任何相位变化。对改进的单相瞬时无功功率理论进行了详细分析。修改后的控制器基于比例积分（PI）增益，以减轻单相电压骤降。已使用MATLAB对线性和非线性负载进行了DVR连接的单相系统的数字仿真，以证明改进控制器的有效性。仿真结果表明，所提出的控制器可以有效地恢复单相电压暂降。

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