市场环境下基于随机规划的主动配电网运行交易二层优化模型

发布时间：2018-03-23 10:07

本文选题：主动配电网　切入点：电力市场　出处：《中国电机工程学报》2016年20期

【摘要】：随着主动配电网技术和需求侧响应的大力发展,主动配电网能更主动地参与电力市场交易,影响输电网的运行。当主动配电网容量足够大时,其可作为大用户购电或供电商参与市场,通过有策略地竞价影响市场的出清结果。该文研究了主动配电网充分利用内部灵活可控负荷和分布式电源,作为市场主体有策略地参与日前市场,并基于随机规划建立了二层优化的竞价模型。其中上层模型以主动配电网收益最大为目标,提出了主动配电网安全运行模型,考虑其容量和电压安全约束;下层模型以社会效益最大为目标,考虑输电网运行及电力市场清算,并通过基于场景集的随机规划模型考虑了参与市场竞争者竞价的不确定性。上层模型通过市场竞价决策传递给下层模型影响日前市场出清,下层模型通过反馈市场出清价格给上层模型影响主动配电网内部运行决策。基于互补理论和线性化技术将二层规划模型最终转换为单层的混合整数线性规划模型进行求解。算例分析验证了文中所提模型的正确性和有效性。
[Abstract]:With the rapid development of active distribution network technology and demand side response, active distribution network can participate more actively in power market transactions and affect the operation of transmission network. When the capacity of active distribution network is large enough, It can be used as a large user to buy electricity or power supply to participate in the market, and influence the clearing result of the market by a strategic bidding. This paper studies the active distribution network to make full use of the internal flexible and controllable load and distributed power generation. As the main body of the market, we participate in the pre-day market strategically, and based on the stochastic programming, we establish a two-layer optimal bidding model, in which the upper layer model takes the maximum profit of the active distribution network as the goal, and puts forward the safe operation model of the active distribution network. Considering the capacity and voltage security constraints, the lower model takes the maximum social benefit as the goal, and considers the transmission network operation and the electricity market liquidation. The uncertainty of competitive bidding is considered by the stochastic programming model based on scenario set, and the upper model is passed to the lower model through the market bidding decision to influence the market clearing before the day. The lower layer model influences the inner operation decision of active distribution network by feedback market clearing price. Based on the complementary theory and linearization technology, the two-layer programming model is transformed into a single-layer mixed integer linear programming model. An example is given to verify the correctness and validity of the proposed model.
【作者单位】：电力系统及发电设备控制和仿真国家重点实验室(清华大学电机系);
【基金】：国家863高技术基金项目(2014AA051901) 国家自然科学基金项目(51577096,51207077,51261130472)~~
【分类号】：TM732

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