中文摘要：

专家系统次优控制是实现地区电网在线无功优化控制的后备保障。针对传统产生式规则编制的无功优化专家系统软件逻辑复杂的问题,提出基于招投标策略的无功优化控制决策模型,依据综合评标法建立电压无功优化评价模型;利用多智能体系统（MAS）并行、协调求解问题的特点,建立地区电网无功优化控制系统架构,通过多智能体间协调控制实现招投标策略,确保地区电网在线无功优化控制系统的鲁棒性、可维护性和扩展性。实际应用验证了该系统的有效性。

英文摘要：

The suboptimal control by expert system is the backup protection of online optimal reactive power control in district power grid. Since the logic of expert system software designed according to the traditional production rules is complicated,a decision model of optimal reactive power control is established based on the bidding strategy and an evaluation model of voltage reactive power optimization is built based on the comprehensive bid evaluation method. A framework based on the multi-Agent system is established for the optimal reactive power control of district power grid,which realizes the bidding strategy by the parallel and coordinated control among multiple Agents to ensure its robustness,maintainability and expandability. The practical application verifies its effectiveness.