基于滞环SVPWM的有源电力滤波器故障容错方法

发布时间：2018-03-18 23:34

本文选题：有源电力滤波器　切入点：故障　出处：《电网技术》2014年05期 　论文类型：期刊论文

【摘要】：为提高有源电力滤波器(active power filter,APF)的故障容错能力,提出了一种基于滞环空间矢量脉宽调制(space vector pulse width modulation,SVPWM)策略的APF故障容错方法。逆变器发生故障时,利用故障状态下有效电压矢量的合成矢量等效替代原控制算法选定的电压矢量,保证APF能在故障状态下继续工作。该方法是在原控制算法的基础上进行容错控制,不需要备用容错算法,降低了计算量。此外,该方法不需要精确估计参考电压值和阻抗参数值,克服了参数估计误差所带来的影响,而且可以实现参数的解耦控制,能够显著提高APF的工作可靠性。仿真和实验结果验证了该方法的有效性。
[Abstract]:In order to improve the fault tolerance ability of active power filter (APF), a novel APF fault tolerant method based on space vector pulse width modulation (SVPWM) strategy is proposed. The synthesis vector of the effective voltage vector in the fault state is used to replace the voltage vector selected by the original control algorithm, which ensures that the APF can continue to work in the fault state. This method is based on the original control algorithm for fault-tolerant control. In addition, the method does not need to estimate the reference voltage and impedance parameter accurately, which overcomes the influence of parameter estimation error, and can realize decoupling control of parameters. The reliability of APF can be improved significantly. The simulation and experimental results show that the proposed method is effective.
【作者单位】：辽宁工程技术大学电气与控制工程学院;
【基金】：国家自然科学基金项目(51307076)~~
【分类号】：TM761;TN713.8

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