Loads in large scale industrial enterprises are always various and complex, causing insecure power\nquality. Meanwhile, some sensitive loads or precise instruments demand for high power quality.\nWhen voltage flicker or harmonics occurs, dynamic voltage restorer (DVR) can be used to stabilize\nthe load-side voltage, which is a good manner of improving power quality. The paper explains the\nload demand in large scale industrial enterprises, analyzes several common voltage compensation\nscheme of DVR, and comes up with another voltage compensation scheme of DVR applied for\ndouble power supply with double load. A Simulink model according to the new scheme is also built\nin MATLAB/Simulink to test its performance. Simulation results show that the proposed scheme\ncan guarantee the load-side voltage stability, which is an effective scheme for managing power\nquality.
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