面向智能电网的主动配电网运行优化调度模型与方法研究

To fit into the wide connection of distributed energy resources (DER), the traditional passive distribution network (PDN) must be transformed into the active distribution network (ADN) which has the ability of active control of power flow and interactive load scheduling. In terms of the new challenges of operation and dispatching in ADN, the proposed project centers on the multi-objective and multi-object optimization for coordinated dispatching of ADN with high penetration rate of DER and diversified grid-friendly loads. And then, the comprehensive coordinated optimal dispatching (CCOD) models and theories that are compatible with domestic conditions for ADN will be developed. Firstly, based on the operating characteristics of different dispatching objects and their combination, control methods and operating strategy are applied to establish the models for schedulable elements. Secondly, considering the uncertainty of distribution generation (DG) output and load demand, the schedulable capability and its credit evaluation indexes and methods as well as the network condition assessment methods are developed for the optimal dispatching in ADN. In the end, based on the coordination principle of power source, network and load, the CCOD models and theories that involve various dispatching objectives, objects, stages and space states, are established to make the dispatching decision schemes mutually coordinated. The results proposed in the project will not only ensure the secure and reliable operation of ADN, but also be of great value for the efficient energy utilization, emission reduction as well as promoting the low-carbon economy.

为适应分布式能源的广泛接入，传统的无源配电网须向具备潮流主动控制能力和与负荷互动能力的主动配电网转变。针对主动配电网的调度运行新问题与挑战，本项目紧密围绕含高渗透率分布式发电与多样性友好负荷的主动配电网多对象、多目标协调优化调度问题展开研究，发展建立"适合国情的主动配电网综合协调优化调度模型、理论与方法"。首先，综合考虑可调度对象及其组合的运行特性与控制策略，构建主动配电网的可调度元件模型；然后，针对分布式电源及负荷的随机特性，研究分布式电源与多样性负荷的可调度能力及其置信度评价指标与方法，以及面向协调调度问题的主动配电网状态评估方法；最后，结合源、网、荷协调机制，建立基于系统可调度能力与状态评估结果，适应不同调度目标、调度对象及不同时空状态的综合协调优化调度理论体系，实现各决策方案的协调优化。成果将能够为未来主动配电网的安全可靠运行提供保障，促进能源高效利用、节能减排和低碳经济的发展。

本项目针对主动配电网调度运行的新问题与挑战，紧密围绕含高渗透率分布式发电与多样性友好负荷的主动配电网多对象、多目标协调优化调度问题展开研究。.项目主要的研究内容及成果如下：.1）基于风电出力随机波动概率模型和可中断负荷模型，提出了计及可中断负荷和风电接入的随机经济调度和日前优化调度方法，研究成果可以有效地降低系统运行成本，提高可再生能源的消纳能力。.4）设计了含多微电网的配电系统互动调度模式与电能交易规则，提出了开放市场环境下的多微电网系统双层调度方法，该方法可以有效解决多微电网系统运行经济性问题，有助于推动分布式能源和微电网的有序发展。.5）提出了面向分布式电源最大消纳的配电网重构方法，可为配电网运行方式发生变化时调度部门的调控决策提供指导，进而提升分布式发电的消纳水平。.6）综合考虑热电联产机组的热-电运行特性、热力管网的互联特性和用户建筑物的蓄能特性，提出了电力系统灵活性调度模型及求解方法。研究成果有助于解决冬季供暖期谷荷时段和峰荷时段城市配电系统的灵活性不足问题，提高可再生能源消纳水平。.7）研究了信息物理系统的相关理论及在微电网系统运行可靠性方面的应用，提出了以电量不足期望EENS和失负荷概率LOLP为指标的微电网信息-物理系统运行可靠性评价方法和影响因素的灵敏度分析方法，可实现对微电网信息-物理系统运行可靠性的科学评价。.结合该项目的研究，培养博士1名，硕士11名，在国际学术期刊、国际会议及国内核心期刊上发表论文12篇，SCI/EI收录7篇，获授权发明专利5项。

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