Simultaneous active and reactive power compensation using STATCOM with supercapacitor energy storage system
by Meenakshi Rastogi; Abdul Hamid Bhat; Aijaz Ahmad
International Journal of Industrial Electronics and Drives (IJIED), Vol. 4, No. 4, 2018

Abstract: STATCOM is taking challenges skilfully in the field of power system to maintain the AC bus voltage constant and to compensate for reactive power. When the STATCOM is integrated with energy storage device through DC/DC buck-boost converter, it compensates the active power also. In this paper, the regulation of DC link voltage to its rated value has been done to compensate simultaneous active and reactive power demanded by the load. The circuit model, mathematical expressions and MATLAB/Simulation model based on the mathematical model has been analysed. The hysteresis current control (HCC) strategy is used to generate the pulses for the 6-pulse 2-level voltage source converter (VSC). The conventional PI controller is used to generate the reference current direct and quadrature axis components. The PI controller is also used to generate the modes, whether it works in buck mode or boost mode. These modes decide the charging and discharging of supercapacitor. Here total reactive power is taken by STATCOM and the grid reactive power is near to zero and hence the burden on the grid is drastically reduced.

Online publication date: Tue, 14-May-2019

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