Simulation and Modeling of Super Capacitors Energy Storage System for Voltage Sags Compensation

S.M.WANKHEDE , D.S.BANKAR

Role of instantaneous energy is important in supplying active power mismatch in reliable a power system. Super capacitor (SC) is the important and recent development in the area of electrical energy storage systems, and has many practical and commercial applications to store energy. It is useful in smoothing large magnitude and short duration power disturbances in a distribution network. Due to high power and energy density requirement from dc storage systems, SC are frequently gets used in low and medium voltage power systems. Energy density in SC is not as high as that of the electrochemical accumulators, but the level of stored energy and storage time are sufficient to fulfill most of the power system requirements. Applications of SC is limited to supplying or absorbing power pulses during transient periods, electric vehicle start up operation, and low voltage distributed generation system. There is a need to study the performance of SC storage in medium voltage power systems subjected to sudden active power variations and network faults.