Abstract
n a renewable energy system, the major task to maintain the voltage regulation of the system and other hands improvement of system stability. A proposed new STATCOM with advanced control technique are introduced in this paper. It is to mitigate the bus voltage variations caused by the large disturbances. A proposed STATCOM consists of voltage regulator and current regulator. Here, the current regulator is to produce the phase angle of voltage source converter, while the voltage regulator outputs the current reference on the quadrature axis of the devices. The voltage and current regulator parameters are treated as a membership function. This membership functions involving by dual fuzzy algorithm (Type-2 Fuzzy controller) which reduces the voltage regulation caused by large disturbances. The proposed controller obtains the faster and more stable responses so that the reactive power required by the proposed method is to stabilize the voltage. Keywords: STATCOM, Type II Fuzzy Set, Particle Swarm Optimization (PSO)
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