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首页> 外文期刊>Power Electronics, IEEE Transactions on >A Current Controller Design for Current Source Inverter-Fed AC Machine Drive System
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A Current Controller Design for Current Source Inverter-Fed AC Machine Drive System

机译：电流源逆变器馈电交流电机驱动系统的电流控制器设计

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摘要

A current source inverter (CSI) requires a capacitor filter for the commutation of switching device as well as for attenuating switching harmonics. Hence, the CSI-fed ac machine has a second-order system in the continuous time domain. This paper presents a design methodology for the closed-loop current controller of the CSI-fed ac machine drive system. A multiloop current controller design using a pole/zero cancellation method is employed with a transfer function matrix. To decouple the cross-coupling terms which cause mutual interferences between the d- and q-axes in the synchronous reference frame, two types of controller are proposed and implemented using different decoupling method. Additionally, active damping methods are incorporated to enhance the stability of the system. A stability analysis in discrete-time domain is investigated to verify the feasibility of the proposed closed-loop current controller. To evaluate the effectiveness of the proposed current controller, computer simulations and experimental tests were performed and the results are discussed.
机译：电流源逆变器（CSI）需要电容器滤波器用于开关器件的换向以及衰减开关谐波。因此，CSI馈送的交流电机在连续时域中具有二阶系统。本文介绍了CSI馈电交流电机驱动系统的闭环电流控制器的设计方法。采用极/零消除方法的多环电流控制器设计与传递函数矩阵一起使用。为了使在同步参考系中引起d轴和q轴相互干扰的交叉耦合项解耦，提出了两种类型的控制器，并采用了不同的解耦方法来实现。另外，采用了主动阻尼方法来增强系统的稳定性。研究了离散时域的稳定性分析，以验证所提出的闭环电流控制器的可行性。为了评估所提出的电流控制器的有效性，进行了计算机仿真和实验测试，并对结果进行了讨论。

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