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首页> 外文期刊>The Mediterranean Journal of Measurement and Control >SLIDING MODE BASED ON SPACE VECTOR MODULATION CONTROL OF THE UNIFIED POWER QUALITY CONDITIONER
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SLIDING MODE BASED ON SPACE VECTOR MODULATION CONTROL OF THE UNIFIED POWER QUALITY CONDITIONER

机译：基于空间矢量调制控制的滑动模式统一电能质量调节器

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摘要

This paper presents the compensation principle using PI and sliding mode control strategies of the unified power quality conditioner in detail. The UPQC is an active filter and it compensates the reactive power, harmonics in both the voltage and current caused by loads. The UPQC makes use of two back to back connected IGBT based voltage source inverters (VSIs) with a common dc bus. One inverter is connected in series and the other one is placed in shunt with the load. The shunt inverter works as a current source and it compensates the current harmonics. The series inverter works as a voltage source and it helps in compensating the voltage harmonics. In order to improve the performances of UPQC, a control method based on a sliding mode controller combined with space vector modulation (SVM) is proposed. The purposes are to deliver compensation signals more quickly and accurately at varied load conditions and to eliminate voltage as well as current harmonics with good dynamic response. Extensive simulation results obtained by Matlab/Simulink for a passive load connected through an uncontrolled bridge rectifier validate the performance of the suggested control scheme. The comparison of these results with those obtained with a PI controller demonstrates the superiority of the proposed controller.
机译：本文详细介绍了统一电能质量调节器的PI和滑模控制策略的补偿原理。 UPQC是有源滤波器，它补偿了由负载引起的电压和电流中的无功功率，谐波。 UPQC利用共同的直流总线使用两个背面返回连接的IGBT基于电压源逆变器（VSI）。一个逆变器串联连接，另一个逆变器载有负载分流器。分流逆变器用作电流源，它补偿电流谐波。该系列逆变器用作电压源，它有助于补偿电压谐波。为了改善UPQC的性能，提出了一种基于滑动模式控制器与空间矢量调制（SVM）组合的控制方法。目的是在各种负载条件下更快，更准确地提供补偿信号，并消除电压以及具有良好动态响应的电流谐波。通过不受控制的桥式整流器连接的无源负载获得的广泛模拟结果，用于通过不受控制的桥式整流器连接验证所提出的控制方案的性能。这些结果与用PI控制器获得的结果的比较演示了所提出的控制器的优越性。

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