Energy recycling for electrical AC power source burn-in test

Abstract

This letter presents a feasible method for electrical ac power source burn-in test. The proposed architecture consists of two power stages. It consumes a lesser amount of energy than the conventional method and provides extra flexibility for the test load. To implement the proposed idea, a simple control strategy and system design is presented in this letter. A case study for an adjustable-speed ac motor drive is demonstrated by means of a prototype experiment to prove its performance and effectiveness.

Optimized Design of Double-Loops Controller for Single-Phase Pulse Rectifier without LC Resonant Filter Circuit

“…Ripple voltage compensation reported in [3] is by adding a static compensator before the actual voltage feedback into the control system. [4,5] propose notch filter can suppress the twice supply frequency in the DC-link of converter significantly, and dynamic response is quicker than Low-pass filter. [6,7] adopt PR controller instead of proportional-integral(PI) controller in the inverters and active filters' current loop control to realize zero steady-state control to AC signal, line current can track the reference current accurately to eliminate the harmonic current.…”

Full Power Experiment Method of Single-Phase PWM Back-to-Back Converter

“…Multiple domestic and international studies on power electronic loads [1] can be used to test the performance on energy-saving and environmental protection, but their main purpose is to test specific power rather than the inverter. And they focused on current waveform control and grid power quality while few of them concentrated on inverter of large power.…”