| 引用本文: | 张亮,王秀丽,王建学,郑伊俊,马骞,王子强.基于分区电价的跨区电力调度双层优化模型[J].电力自动化设备,2023,43(8):195-201 |
| ZHANG Liang,WANG Xiuli,WANG Jianxue,ZHENG Yijun,MA Qian,WANG Ziqiang.Bi-level optimization model of inter-regional power dispatch based on regional electricity price[J].Electric Power Automation Equipment,2023,43(8):195-201 |
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| 摘要: |
| 为充分利用跨区调度资源，提出一种基于分区电价的跨区电力调度双层优化模型。采用等效发电成本曲线对区域内部的煤电机组出力进行建模，采用一种基于整数规划的机会约束方法对风电和光伏出力进行建模。建立与分级调度模式相适应的双层优化模型，作为上级调度机构的上层模型以区域间送受电量为决策变量，以区域间送受电量价值最大化为目标，下层模型实现区域内部的经济调度。根据卡罗需-库恩-塔克(KKT)条件将双层模型转化为单层模型进行求解。算例结果验证了所提模型的有效性。所提模型在送电区域和受电区域之间维持一定的电价差异，通过传输较少的电量缓解受电区域的电力供需矛盾。 |
| 关键词: 跨区电力调度 机会约束 双层优化 KKT条件 等效发电成本曲线 |
| DOI：10.16081/j.epae.202301025 |
| 分类号:TM732 |
| 基金项目:中国南方电网新型电力系统创新项目(000000KK52210079) |
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| Bi-level optimization model of inter-regional power dispatch based on regional electricity price |
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ZHANG Liang1, WANG Xiuli1, WANG Jianxue1, ZHENG Yijun1, MA Qian2, WANG Ziqiang2
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1.School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, China;2.Power Dispatching Control Center of China Southern Power Grid, Guangzhou 510000, China
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| Abstract: |
| In order to fully use the inter-regional dispatch resource, a bi-level optimization model of inter-regional power dispatch based on regional electricity price is proposed. The equivalent generation cost curve is adopted to model the output of coal-fired units within the regions, and the chance constraint method based on integer programming is adopted to model the output of wind power and photovoltaic. A bi-level optimization model suitable for hierarchical dispatch mode is established. As the superior dispatch organization, the upper level model takes the inter-regional transmission power as the decision variables, and takes the maximum value of inter-regional transmission electricity as the goal. The lower level model realizes the economic dispatch within the regions. The bi-level model is transformed into a single-level model for solution according to Karush-Kuhn-Tucker(KKT) condition. The example results verify the effectiveness of the proposed model, which maintains a certain electricity price difference between the power sending region and power receiving region, and alleviates the power supply and demand contradiction in the power receiving region by transmitting a small amount of electricity. |
| Key words: inter-regional power dispatch chance constraint bi-level optimization KKT condition equivalent generation cost curve |
