PV Based Dynamic Statcom for Power Quality Improvement

Reactive power compensation is an important issue in the control of electric power system. Reactive power from the source increases the transmission losses and reduces the power transmission capability of the transmission lines. Moreover, reactive power should not be transmitted through the transmission line to a longer distance. Hence, Flexible AC Transmission Systems (FACTS) devices such as static compensator (STATCOM), unified power flow controller (UPFC) and static volt–ampere compensator (SVC) are used to alleviate these problems. In this paper, single phase STATCOM using hysteresis band current control is presented as the final year project. The detail MATLAB simulation study has been done, with addition to that, a hardware design to realize the system has been proposed, simulated, fabricated and tested in the lab. The MATLAB simulation model uses capacitor as DC source and PI controller to maintain its voltage. But, in order to reduce the complexity because of technical and time constraint, the hardware is designed with DC battery source eliminating the PI controller. The output gives the positive results.