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首页> 外文期刊>Electric power systems research >Power quality and total harmonic distortion response for MMC with increasing arm inductance based on closed loop-needless PID controller
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Power quality and total harmonic distortion response for MMC with increasing arm inductance based on closed loop-needless PID controller

机译：基于闭环无需PID控制器的MMC的臂质量增加时的电能质量和总谐波失真响应

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This paper presents the effects on output voltage and current total harmonic distortion (THD) response with increasing the arm inductance (smooth reactor for HVDC) for the modular multilevel converter (MMC) behavior based on a closed loop-needless PID controller control. Also, it presents the effects on MMC quantities, such as a circulating current ripple, maximum output voltage, and submodule capacitor ripple responses with increasing the value of arm inductance. Because increasing arm inductor size could reduce the THD and circulating current ripple waveforms of the MMC, this effect will be investigated in this paper. The closed loop-needless PID controller control is presented first. Second, an examination of the effect of changing the arm inductor for MMC behavior is carried out based on many simulation results in this paper in order to analyze the change in THD for all MMC quantities, including circulating current, upper arm current and voltage, lower arm current and voltage, and AC output voltage and current. Third, arm inductance relationships with output voltage and current THD are shown. Also, arm inductance relationships with a circulating current ripple and submodule capacitor ripple are presented. As a part of this study, the relationship between arm inductance and maximum output voltage is explained. Finally, the hardware design and software design of the prototype are presented to verify the arm inductor value effect on MMC experimentally. The experimental results are also documented in this paper. (C) 2015 Elsevier B.V. All rights reserved.
机译：本文介绍了基于闭环-无需PID控制器控制的模块化多电平转换器（MMC）行为，随着臂电感（HVDC平滑电抗器）的增加，对输出电压和电流总谐波失真（THD）响应的影响。此外，随着臂电感值的增加，它还会对MMC数量产生影响，例如循环电流纹波，最大输出电压和子模块电容器纹波响应。由于增加臂式电感器的尺寸可以减小MMC的THD和循环电流纹波波形，因此本文将对此效果进行研究。首先介绍了闭环-不必要的PID控制器控制。其次，基于许多仿真结果，研究了改变臂电感对MMC行为的影响，以便分析所有MMC量（包括循环电流，上臂电流和电压，下限）的THD变化。臂电流和电压，以及交流输出电压和电流。第三，示出了臂电感与输出电压和电流THD的关系。此外，还提出了臂电感与循环电流纹波和子模块电容器纹波的关系。作为这项研究的一部分，将说明臂电感与最大输出电压之间的关系。最后，给出了原型的硬件设计和软件设计，以通过实验验证臂电感值对MMC的影响。实验结果也记录在本文中。 （C）2015 Elsevier B.V.保留所有权利。

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