Dynamic Voltage Restorer for Deep Voltage Sags and Harmonics Mitigation in Industrial Plant with Sensitive Loads

Citation:
Ibrahim, D. K., A. Ibrahim, and I. Hussein Ammar, "Dynamic Voltage Restorer for Deep Voltage Sags and Harmonics Mitigation in Industrial Plant with Sensitive Loads", 16th International Middle East Power Systems Conference, MEPCON 2014, 2014.

Abstract:

Dynamic Voltage Restorer (DVR) is a fast, flexible and efficient solution for voltage sag problem. It is a power electronic based device that used to compensate voltage sags and harmonics. The DVR has different system topologies for compensation by using battery as an energy storage unit or by using shunt and series converters. In this paper, the DC-DC boost converter is used to connect between shunt and series converters, which allows the DVR to compensate deep sags for long durations. A real case study of Egyptian industrial plant includes a lamp factory as a sensitive load is modeled and simulated using MATLAB/SIMULINK environment to test the effectiveness of using different system topologies of DVR: a battery, shunt and series converters, and finally shunt and series converters with boost converter. Satisfactory performance is achieved using the topology of using shunt and series converters with boost converter for compensating deep voltage sags and harmonics. The financial assessment of using DVR is also investigated.

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