A Cost-benefit Evaluation Model of Demand Side Management for Grid Companies Under the Power Transmission and Distribution Price Reform
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摘要: 需求侧管理符合智能电网的发展方向,为衡量输配电价改革下,实施需求侧管理项目对电网公司的影响,论文确定了电网公司实施需求侧管理的成本指标和效益指标。以输配电价的变化情况划分短期和长期,根据总收益的不同核算方法分别建立短期成本效益评估模型和长期成本效益评估模型。该模型以“可避免峰荷容量”和“新增输配电量”为变量,适用于多种需求侧管理策略和措施。实例分析得到了某区域电网实施需求侧管理的短期、长期成本效益三维评估结果以及输配电价的变化情况,验证了评估模型的客观性和有效性。Abstract: Demand side management has attracted wider and wider attention under the electric power system reform because it conforms to the development tendency of the smart grid. In this paper, the cost indexes and benefit indexes of demand side management are determined to evaluate their impacts on the power grid companies under the power transmission and distribution price reform. It is divided into short-term and long-term pricing according to the different forms of the transmission and distribution price. Then short-term and long-term cost-benefit evaluation models are built according to the different accounting methods of total revenue. Being applicable to a variety of demand side management strategies, such variables as ‘avoidable peak load capacity’ and ‘increased transmission and distribution energy’ are set in the model. The three-dimensional results of short-term and long-term evaluation together with the change trend of the transmission and distribution price for a regional grid are obtained from case analysis, which validates the objectivity and effectiveness of the evaluation model.
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