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重庆电网负荷的快速增长和川渝电网运行方式耦合的紧密性,导致川电东送通道在大负荷运行方式下出现功率分布严重不平衡问题,川渝电网输电能力因此受到限制。为解决该问题,基于直流潮流模型,分别从发电优化调度与互联网架建设改造两个方面建立提升川电东送输送能力的优化模型。利用优化工具分别对两种方案的优化模型进行求解,给出川渝电网发电优化调度与互联网架建设改造的优化结果。方案应用效果表明,川渝电网发电优化调度与互联网架建设改造均能提升川电东送输送能力,且川渝互联网架建设改造方案的效果更佳,工程造价相对较高。现场可根据实际条件和需求,选择合适方案进行实施。
The rapid increase of load on Chongqing power grid and the close coupling of operation modes between Sichuan and Chongqing power grids led to the serious imbalance of power distribution under the heavy load operation mode in Sichuan Power Transmission Channel. Therefore, the transmission capacity of Sichuan-Chongqing Power Grid is limited. In order to solve this problem, based on the DC power flow model, an optimization model is proposed to improve the transmission capacity of power transmission from Sichuan to East China from two aspects of optimal power generation scheduling and construction of Internet backbone. The optimization tools of the two schemes are respectively used to solve the optimization model by using optimization tools, and the optimization results of power generation dispatching and reconstruction of the Internet frame in Sichuan and Chongqing power grids are given. The results show that the optimized power generation scheduling of Sichuan and Chongqing power grids and the reconstruction and construction of the Internet can all improve the transmission capacity of the transmission network from Sichuan to the East and the construction of the Internet rack in Sichuan and Chongqing is more effective and the project cost is relatively higher. The scene can be based on the actual conditions and needs, choose the appropriate program for implementation.