This paper proposes a co-ordinated reactive power control strategy analysis in Line Side Converter (LSC) of Doubly Fed induction generator (DFIG) and in the Automatic voltage regulator (AVR) of synchronous generator (SG) in isolated Dish Stirling solar Thermal(DSTS) – Biomass hybrid power system. This co-ordinated control strategy greatly maintains the autonomous hybrid power system voltage deviation by adjusting the reactive power imbalance caused due to the impulsive reactive power nature of DFIG coupled with the DSTS and load. Gain values of Integral Order Proportional Integral (IO-PI) controller in LSC and AVR are optimized to maintain the system voltage stability. Modern and simple Grey wolf optimization algorithm has been used to extract the superior PI gain values to maintain system stability with less reaction time. The proposed co-ordinated control strategy has been tested with various load disturbance and with dynamic input power feed from DSTS to validate the system robustness. Also, the optimized gain value based voltage deviation values are validated in real time with dSPACE.

本文提出了双馈感应发电机（DFIG）的线路侧换流器（LSC）和隔离式碟式斯特林太阳能热能（DSTS）的同步发电机（SG）的自动电压调节器（AVR）的协调无功控制策略分析。 ）–生物质混合动力系统。这种协调控制策略通过调节由于DFIG的脉冲无功功率特性与DSTS和负载耦合而导致的无功功率不平衡，从而极大地保持了自主混合动力系统的电压偏差。LSC和AVR中的积分顺序比例积分（IO-PI）控制器的增益值经过优化，以维持系统电压的稳定性。现代简单的灰狼优化算法已被用于提取优异的PI增益值，从而以更少的反应时间维持系统稳定性。所提出的协调控制策略已在各种负载干扰下以及通过DSTS的动态输入功率馈送进行了测试，以验证系统的鲁棒性。而且，基于优化增益值的电压偏差值可通过dSPACE进行实时验证。