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A Control System for Static VAr Compensator Based on a Digitally Controlled Oscillator

机译:基于数控振荡器的静态无功补偿器控制系统

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This article deals with the design, construction, and testing of a new control system for a static VAr compensator. The new control system is based on monitoring reactive power, which is used as the only feedback variable for a digitally controlled oscillator. In addition to synchronizing the static VAr compensator with the AC system, the digitally controlled oscillator also schedules the firing of converter valves in order to achieve the reactive power compensation level required in the AC connection bus. The control system design was initially developed in MATLAB® and Simulink® (The MathWorks, Natick, Massachusetts, USA), and then a ± 1-KVAr static VAr compensator experimental prototype was built. The static VAr compensator control system was implemented in a PIC16F877 microcontroller (Microchip Technology Inc., Chandler, Arizona, USA). Computer simulations and experimental results for the static VAr compensator and its control system are presented in the article. Finally, the performance of the proposed static VAr compensator control system was compared with a phase-locked loop control system for a static VAr compensator, and the relevant results are presented.
机译:本文介绍了用于静态VAr补偿器的新控制系统的设计,构造和测试。新的控制系统基于监视无功功率,该功率被用作数控振荡器的唯一反馈变量。除了使静态VAr补偿器与AC系统同步外,数控振荡器还可以调度换流阀的点火,以实现AC连接总线中所需的无功功率补偿水平。控制系统设计最初是在MATLAB®和Simulink®(美国马萨诸塞州纳蒂克的MathWorks)上开发的,然后构建了±1-KVAr静态VAr补偿器实验原型。静态VAr补偿器控制系统在PIC16F877微控制器(美国亚利桑那州钱德勒的Microchip Technology Inc.)中实现。本文介绍了静态VAr补偿器及其控制系统的计算机仿真和实验结果。最后,将所提出的静态VAr补偿器控制系统的性能与用于静态VAr补偿器的锁相环控制系统进行了比较,并给出了相关的结果。

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