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首页> 外文期刊>Industrial Electronics, IEEE Transactions on >A d–q Voltage Droop Control Method With Dynamically Phase-Shifted Phase-Locked Loop for Inverter Paralleling Without Any Communication Between Individual Inverters
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A d–q Voltage Droop Control Method With Dynamically Phase-Shifted Phase-Locked Loop for Inverter Paralleling Without Any Communication Between Individual Inverters

机译：具有动态相移锁相环的dq电压降控制方法，用于逆变器并联，而各个逆变器之间没有任何通信

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摘要

This paper presents a modified droop control method for equal load sharing of parallel-connected inverters, without any communication between individual inverters. Droop in d- and q-axis voltages are given depending upon d- and q-axis currents, respectively. Each inverter works in the voltage control mode, where it controls the filter capacitor voltage. Voltage references of each inverter come from d- and q-axis voltage droops. This d- and q -axis voltage droops force the parallel-connected inverters to share equal current and hence equal active and reactive power. A dynamically phase-shifted phase-locked loop (PLL) technique is locally designed for generating phase reference of each inverter. The phase angle between filter capacitor voltage vector and d-axis is dynamically adjusted with the change in q-axis inverter current to generate the phase reference of each inverter. The strategy has been verified with simulations and experiments and results are presented in this paper.
机译：本文提出了一种改进的下降控制方法，用于并联逆变器的均等负载分配，而各个逆变器之间没有任何通信。 d和q轴电压的下降分别取决于d和q轴电流。每个逆变器均在电压控制模式下工作，在该模式下，它控制滤波电容器的电压。每个逆变器的参考电压来自d轴和q轴电压下降。这种d轴和q轴电压下降会迫使并联连接的逆变器共享相等的电流，从而共享相等的有功和无功功率。动态移相锁相环（PLL）技术是本地设计的，用于生成每个逆变器的相位参考。随q轴逆变器电流的变化动态调整滤波电容器电压矢量和d轴之间的相位角，以生成每个逆变器的相位参考。通过仿真和实验验证了该策略，并在本文中给出了结果。

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