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首页> 外文期刊>Emerging and Selected Topics in Power Electronics, IEEE Journal of >A New Tuning Method of Multiresonant Current Controllers for Grid-Connected Voltage Source Converters
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A New Tuning Method of Multiresonant Current Controllers for Grid-Connected Voltage Source Converters

机译：并网电压源换流器多谐振电流控制器的新调谐方法

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摘要

Resonant controllers (RSCs) are widely adopted for controlling power converters, since they can track ac signals of both positive and negative sequences without steady-state error. However, the performance of RSCs has not been fully exploited due to the improper phase compensation angle and insufficient controller gain. In this paper, a novel controller parameters' design method, which is based on the system error transfer function, is proposed to further explore the potential high performance of RSCs. Comparing with the conventional methods, more appropriate phase compensation angles can be obtained, which means that the stable region of the controller gain is extended. Since the proposed RSCs' design method is able to maximize the controller gain, the controller sensitivity to system frequency variations can be decreased and the system response speed can be improved. The RSCs' tuning procedure is given in detail, and comparative experiments between the proposed method and the conventional method are performed to validate the superiority of the proposed method.
机译：谐振控制器（RSC）被广泛用于控制功率转换器，因为它们可以跟踪正序和负序的交流信号而没有稳态误差。但是，由于相位补偿角不合适和控制器增益不足，RSC的性能尚未得到充分利用。本文提出了一种基于系统误差传递函数的新型控制器参数设计方法，以进一步探索RSC的潜在高性能。与传统方法相比，可以获得更合适的相位补偿角，这意味着控制器增益的稳定区域得以扩展。由于所提出的RSC的设计方法能够最大化控制器增益，因此可以降低控制器对系统频率变化的敏感性，并可以提高系统响应速度。给出了RSC的调谐过程，并进行了所提方法与常规方法的对比实验，验证了所提方法的优越性。

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