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首页> 外文期刊>Electric power systems research >Optimal Regulator-based Control Of Electronic Power Transformer For Distribution Systems
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Optimal Regulator-based Control Of Electronic Power Transformer For Distribution Systems

机译：基于最优调节器的配电系统电子变压器控制

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摘要

This paper presents the design of a linear-quadratic-regulator (LQR) with integral action to improve dynamic performance of an electronic power transformer for distribution systems (DEFT). The integral action is added to cancel the steady-state errors knowing that the standard LQR provides only proportional gains. This controller is designed to achieve the following four control objectives: (1) to keep the input currents sinusoidal and in phase with the input voltages to achieve unity input power factor, (2) to maintain the dc-link voltage at a reference value, (3) to maintain the output voltages at a constant value and (4) to keep the output voltages sinusoidal and symmetric. The DEFT model which includes the integral action in the d-q rotating frame is built and linearized around a set point. The system is tested for dc-link reference voltage, load and input voltages variations, respectively. The validity of the built model and the proposed control strategy is demonstrated by simulation results based on MATLAB/SIMULINK.
机译：本文介绍了一种具有积分作用的线性二次调节器（LQR）的设计，以改善配电系统电子功率变压器（DEFT）的动态性能。知道标准LQR仅提供比例增益，就可以添加积分作用来消除稳态误差。该控制器旨在实现以下四个控制目标：（1）将输入电流保持为正弦波并与输入电压同相，以达到统一的输入功率因数；（2）将直流母线电压保持在参考值； （3）保持输出电压为恒定值，（4）保持输出电压为正弦和对称。建立包含d-q旋转框架中的积分作用的DEFT模型，并围绕设定点线性化它。该系统分别经过测试的直流母线参考电压，负载和输入电压变化。基于MATLAB / SIMULINK的仿真结果证明了所建模型和所提出的控制策略的有效性。

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  • 来源
    《Electric power systems research》 |2009年第6期|863-870|共8页
  • 作者

    Haibo Liu; Chengxiong Mao; Jiming Lu; Dan Wang;

  • 作者单位

    Hubei Electric Power Security and High Efficiency Key Lab., Department of Electrical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, PR China;

    Hubei Electric Power Security and High Efficiency Key Lab., Department of Electrical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, PR China;

    Hubei Electric Power Security and High Efficiency Key Lab., Department of Electrical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, PR China;

    Hubei Electric Power Security and High Efficiency Key Lab., Department of Electrical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    electronic power transformer; linear-quadratic-regulator; proportional-integral (pi) controller; state space model; dynamic performance;

    机译：电子电力变压器;线性二次调节器;比例积分（pi）控制器;状态空间模型;动态性能;

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