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首页> 外文期刊>European transactions on electrical power engineering >Coordinated power control without AC voltage sensing and active power filtering using interlinking converter with reduced interlinking power flow in a droop controlled islanded hybrid AC-DC microgrid
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Coordinated power control without AC voltage sensing and active power filtering using interlinking converter with reduced interlinking power flow in a droop controlled islanded hybrid AC-DC microgrid

机译：使用互通转换器具有交流电压检测和有源电力滤波的协调功率控制，在下垂控制的岛混合AC-DC微电网中减少了互连电流的互连电流

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摘要

An interlinking converter (IC) in a hybrid AC-DC microgrid (HMG) is the power transfer medium between the AC and DC subgrids. This article proposes a modified control strategy of IC for carrying out the power transfer between the subgrids without sensing the AC voltages. This control strategy directly extracts the AC voltages from the gate signals used for controlling the IC. The omission of AC voltage sensing process upgrades the reliability of the system and also minimizes the size and cost of the system considerably. The paper also studies the operation of IC as an active power filter (APF) under non-linear loading conditions, with the objective of reducing the interlinking power flow. APF using IC while carrying out power transfer between the subgrids generate high power losses. This issue is addressed by controlling the IC using the power request method, thereby ensuring a reduced power flow through the IC. In this article, the results obtained from the simulation of the HMG in MATLAB/Simulink are presented to verify effectiveness of the proposed control strategy. The results of real-time simulations performed using OPAL-RT (OP4500) real-time simulator test bed are also presented to validate the potency of the proposed control strategy.
机译：混合AC-DC微电网（HMG）中的互通转换器（IC）是AC和DC子地游之间的功率传输介质。本文提出了一种修改的IC控制策略，用于在不感知交流电压的情况下执行子耕地之间的功率传输。该控制策略直接从用于控制IC的栅极信号中提取交流电压。 AC电压传感过程的遗漏升级了系统的可靠性，并且还可以最大限度地降低系统的尺寸和成本。本文还在非线性负载条件下研究IC作为有源电力滤波器（APF）的操作，目的是降低交互电流。使用IC在子耕作之间进行功率传输的同时产生高功率损耗。通过使用电源请求方法控制IC来解决该问题，从而确保通过IC的功率降低。在本文中，提出了从Matlab / Simulink中的HMG模拟获得的结果以验证所提出的控制策略的有效性。还提出了使用OPAL-RT（OP4500）实时模拟器试验床进行实时模拟的结果以验证所提出的控制策略的效力。

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