李可铭, 王育飞. 考虑移动式储能辅助的有源配电网多目标孤岛运行策略[J]. 现代电力. DOI: 10.19725/j.cnki.1007-2322.2022.0259
引用本文: 李可铭, 王育飞. 考虑移动式储能辅助的有源配电网多目标孤岛运行策略[J]. 现代电力. DOI: 10.19725/j.cnki.1007-2322.2022.0259
LI Keming, WANG Yufei. Multi-Objective Islanding Operation Strategy of Active Distribution Network Considering the Assistance of Mobile Energy Storage System[J]. Modern Electric Power. DOI: 10.19725/j.cnki.1007-2322.2022.0259
Citation: LI Keming, WANG Yufei. Multi-Objective Islanding Operation Strategy of Active Distribution Network Considering the Assistance of Mobile Energy Storage System[J]. Modern Electric Power. DOI: 10.19725/j.cnki.1007-2322.2022.0259

考虑移动式储能辅助的有源配电网多目标孤岛运行策略

Multi-Objective Islanding Operation Strategy of Active Distribution Network Considering the Assistance of Mobile Energy Storage System

  • 摘要: 随着可再生能源在配电网中的接入比例不断提高,电压越限等影响灾后配电网孤岛稳定经济运行的问题愈发突出。为了有效解决孤岛中的电压越限问题并兼顾运行经济性,提出一种考虑移动式储能辅助的有源配电网多目标孤岛运行策略。首先,从理论层面证明,可通过有功无功两个方面的优化实现有源配电网孤岛的电压控制与经济运行。然后,将移动式储能作为辅助资源,以节点电压偏差和孤岛运行期间总成本最小为目标,建立有源配电网多目标孤岛运行模型,并利用ε-约束法获得Pareto最优解集。最后,以IEEE 33节点配电系统为例,验证所提策略的有效性。结果表明,所提策略能够协同优化孤岛划分后不同电源的有功、无功出力,使灾后配电网孤岛在消除电压越限风险时兼顾运行经济性。

     

    Abstract: As the proportion of renewable energy in the distribution network continues to increase, As the proportion of renewable energy in the distribution network continues to increase, problems such as voltage exceeding limits that affect the stable and economic operation of post-disaster distribution network islands become more prominent. In order to effectively solve the voltage exceeding limit problem in isolated islands and consider the operational economy, a multi-objective isolated island operation strategy considering the assistance of mobile energy storage system for active distribution networks was proposed. Firstly, voltage control and economic operation of active distribution network islands can be theoretically proven to be achieved through the optimization of both active and reactive power. Secondly, using mobile energy storage as an auxiliary resource, taking minimizing node voltage deviation and total cost during islanding operation as an objective, a multi-objective islanding operation model for an active distribution network was established, and the Pareto optimal solution set was obtained by using the ε-constraint method. Finally, an IEEE 33 bus distribution system was taken as an example to verify the effectiveness of the proposed strategy. The results show that the proposed strategy can synergistically optimize the active and reactive power output of different power sources after island partition, allowing for the operational economy while eliminating the risk of voltage exceeding limits in post-disaster distribution network islands.

     

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