INVESTIGATION OF POWER SYTEM STABILIZER PERFORMANCE IN FREQUENCY STABILITY OF POWER SYSTEM INTEGRATED WITH WIND POWER

Abstract

The energy transition is implementing in various different industries at a global scale. In particular, the shift from traditional fossil fuel-based power generation technology to renewable energy sources-based ones plays a pivotal role in this process. In many countries including Vietnam, the level of penetration of wind power sources is increasing, on the one hand, contributing to meet the demand of the load, on the other hand and modifying the related technical issues in power systems. The fluctuation of output power of wind power sources following the variation of the wind speed is great challenging to the guarantee of power system stability. This paper introduces research results on the effectiveness of power system stabilizers (PSSs) in improving small signal stability. First, the 9-node IEEE power system is modified with the participation of a wind power source. The operation of PSS that is equipped at a traditional power plant was then investigated in the conditions that there are fluctuations in load and the output of wind power system. The obtained results show different efficiency of PSS types in power system stabilization.