面向多微网协调交易的多方共治决策方法

Multi-party Co-governance Decision-making Method for Coordinated Transactions Among Multiple Microgrids

为实现多微网系统间能源交易方案的可选择以及量化评估分析,提出了一种面向多微网能源协调交易的共治决策方法。将多微网系统中的各微网看做对等的能量管理实体,各微网均可提出能源交易方案或对方案进行打分评估,由此构建不含中央管理单元的分散式决策和分布式能量管理架构。为验证所提架构的有效性,设计了合约、价格和点对点3种交易方案供参考分析。所提优化方案由其余微网以经济性、公平性、环保性和安全性为评估指标进行评估打分,并采用层次分析法和熵值法确定主客观权重,应用组合赋权法综合决策选出最优执行方案,从而实现多微网能源协调交易的共治决策。算例仿真展示了共治模式下各优化方案的结果,根据评估指标对各方案进行对比分析,通过综合评估选出本次交易执行方案,验证了所提方法的有效性。

In order to realize the selection and quantitative evaluation analysis of energy trading schemes between multi-microgrid systems, a co-governance decision-making method for coordinated transaction of multi-microgrid energy is proposed. Each microgrid in the multi-microgrid system is regarded as an equivalent energy management entity. Each microgrid can propose an energy trading scheme or score and evaluate the scheme, thereby constructing a decentralized decision-making and distribution energy management architecture without a central management entity. In order to verify the effectiveness of the proposed framework, three trading schemes of contract, price and peer-to-peer are designed for reference and analysis. The proposed optimization scheme is evaluated and scored by the remaining microgrids using economy, fairness, environmental protection and safety as evaluation indicators. Subjective and objective weights are determined by using analytic hierarchy process and entropy evaluation method. The optimal execution scheme is selected through comprehensive decision-making using the combination weighting method, so as to realize the co-governance decision of coordinated transaction for multi-microgrid energy. The simulation of the calculation example shows the results of the optimization schemes in the co-governance mode. The schemes are compared and analyzed according to the evaluation indicators, and the transaction execution scheme is selected through comprehensive evaluation, which verifies the effectiveness of the proposed method.