A control algorithm for hybrid compensation of Fast Varying Loads

A control algorithm for hybrid compensation of fast varying loads (FVLs) is presented in this paper. Compensators of FVLs should reduce the variation of power in distribution systems and should reduce bursts of waveform distortion. These two requirements are substantially different. Thus it should have a hybrid structure. Therefore compensator of FVLs should be built of two separate compensators; one for the compensation of power variation and the other for compensation of the distorted component. The compensator for the power variation (CPV) can use a Flywheel Energy Storage System (FESS). In the compensator discussed in this paper a Permanent-Magnet Synchronous Motor/Generator is used as the driving machine. The FESS is supplied from a PWM-based Inverter. A PWM inverter-based switching compensator is used for compensation of waveform distortion. A complete model of the integrated control of the compensator is discussed in this paper. The Current Physical Components (CPC) theory is used as the basis for generating reference signals for the hybrid compensator under discussion.