VOLTAGE CONTROL TYPE VIRTUAL SYNCHRONOUS MACHINE CONTROL DEVICE AND VOLTAGE CONTROL TYPE VIRTUAL SYNCHRONOUS MACHINE

摘要

To provide a voltage control type virtual synchronous machine control device and a voltage control type virtual synchronous machine which can suppress overcurrent as maintaining voltage control type virtual synchronous machine control in a converter equipped with the voltage control type virtual synchronous machine control.SOLUTION: A voltage control type virtual synchronous machine control device performs voltage control type virtual synchronous machine control to a converter, and is equipped with a control part which performs the voltage control type virtual synchronous machine control, in which the control part is equipped with compensation means for compensating an output voltage command value to be input in the control part, the compensation means converts the output voltage command value and a measured system voltage value into a rotary coordinate system consisting of a D axis and a Q axis, uses a control circle with a radius r centering on the system voltage value as a limiter, and considers the compensated output voltage command value existing on the control circle or its inside as the output voltage command value on condition that the output voltage command value is outside the control circle.SELECTED DRAWING: Figure 1