公开(公告)号：US20140307494A1

公开(公告)日：2014-10-16

申请号：US14222898

申请日：2014-03-24

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Xinhui WU ,  Jiao LIU ,  Dan HOU ,  Xueqin WU ,  Zhuohui TAN

IPC: H02M7/537

CPC classification number: H02M7/537 ,  H02J3/383 ,  H02J3/48 ,  H02J3/50 ,  H02M7/48 ,  Y02E10/563

Abstract: A power conversion system is disclosed including a DC bus for receiving DC power, a power converter for converting the DC power to AC power, and a controller. The controller includes an active power regulator for generating a phase angle command signal, a reactive power regulator for generating a voltage magnitude command, and an active power (P) and reactive power (Q) decoupling unit for decoupling interaction between the active and reactive power regulators. The PQ decoupling unit includes an active power compensation element and a reactive power compensation element. The active power compensation element is used for generating a phase angle compensation signal based on a reactive power error signal, to compensate the phase angle command signal. The reactive power compensation element is used for generating a voltage magnitude compensation signal based on an active power error signal, to compensate the voltage magnitude command signal.

Abstract translation: 公开了一种电力转换系统，包括用于接收DC电力的DC总线，用于将DC电力转换为AC电力的功率转换器以及控制器。 该控制器包括用于产生相位角命令信号的有功功率调节器，用于产生电压幅度指令的无功功率调节器以及用于去耦有功和无功功率之间的相互作用的有功功率（P）和无功功率（Q）去耦单元 监管者。 PQ解耦单元包括有功功率补偿元件和无功功率补偿元件。 有源功率补偿元件用于基于无功功率误差信号产生相位角补偿信号，以补偿相位角指令信号。 无功功率补偿元件用于基于有功功率误差信号产生电压幅度补偿信号，以补偿电压幅度指令信号。