Active power and reactive power optimal dispatch of microgrid considered reactive power rewards and penalties charge

In order to solve the low grid voltage and unstable operation problems caused by the excessive consumption of reactive power by grid users, this paper proposes a microgrid daily active and reactive power coordination scheduling method that takes into consideration the rewards and punishments for reactive power. For improving the power factor of microgrid, three models of reactive power rewards and penalties are designed to optimize the distribution of active and reactive power of renewable energy in network. Combining the V2G characteristics of the electric vehicle and the response characteristics of the interruptible load, the scheduling policies can further maximize the operating benefit and ensure the safe operation of the microgrid. The feasibility and effectiveness of the proposed charging method are testified by simulation analysis. © 2020, Solar Energy Periodical Office Co., Ltd. All right reserved.