LESSENING OF ISSUES REGARDING POWER QUALITY IN ELECTRICAL POWER DEVICES

Rafeeque Ahmad Mansuri, S S P M Sharma B

Abstract


In the recent times, issues of power quality are extremely vital for customers and hence for the devices of custom power, dynamic voltage restorer is employed to lessen the issues of power quality. Dynamic voltage restorer device manages active power flow and includes minute cost when measured to others. By dynamic voltage restorer device, introduced on feeder of load, line voltage is returned to its common level within few milliseconds as a result preventing power disruption. We carry out a control method of hysteresis voltage for building purpose of switching pulses for the inverter of dynamic system of voltage restorer. By added benefits of low expenditure as well as simple functioning, our proposed system is tremendously accepted for power supply of microprocessors. The proposed method of hysteresis voltage presents quick transient response without additional loop compensation.


Keywords


: Power quality; Hysteresis voltage; Dynamic voltage restorer; Microprocessor; Power supply; Inverter; Transient response;

References


C. Fitzer, M. Barnes and P. Green, “Voltage Sag Detection Technique for a Dynamic Voltage Restorer”, IEEE Trans. Industry Applications, Vol. 40(1), Jan. 2004, pp. 203 - 212.

Power Quality Enhancement Using Custom Power Devices by A. Ghosh and G. Ledwich. 2002. Kluwer Academic Publishers.

S. Choi, J. Li and M. Vilathgamuwa, “A Generalized Voltage Compensation Strategy for Mitigating the Impacts of Voltage Sags/Swells”, IEEE Trans. Power Delivery, Vol. 20(3),

J. G. Nielsen, “Design and Control of a Dynamic Voltage Restorer,” Ph.D. dissertation, Institute of Energy Technology, Aalborg Univ., Aalborg, Denmark, 2002.

Boonchiam P, and Mithulananthan N, “Understanding of Dynamic Voltage Restorers through MATLAB Simulation”. Thammasat Int. J. Sc. Tech., Vol. 11, No. 3, July-Sept 2006.

Yusuf K: “Industrial power quality problems Electricity Distribution. IEEE Conf. Pub1 No. 482, Vol: 2, 18–21 June 2001 Pages: 5 pp. vo1.2.


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