基于多能互补的电/热综合需求响应

Electro-thermal Comprehensive Demand Response Based on Multi-energy Complementarity

工业园区中工业负荷稳定、自动化水平高,具有较大的需求响应潜力。工业用户对多能源存在需求差异,各个能源子系统存在耦合互补的关系。从工业用户角度出发,将用户对于冷、热、电多能流的需求纳入需求响应范围内,提出基于多能互补的电/热综合需求响应机制。以满足上级调峰需求为优化目标,在设备物理约束、能量平衡约束及新增需求响应约束下,采用混合整数线性规划法进行求解,最终得到电/热综合需求响应策略。算例分析表明,所提策略可进一步挖掘用户的响应潜力,并指导用户合理制定需求响应方案;相较传统需求响应策略,该策略用户侧损耗较小,响应程度更高,有利于实现电网公司与用户侧的共赢。

The industrial load with high level of automation is stable, thus it has great demand response potential. There are different demands of various energy for industrial users. Each energy subsystem has relationship of coupling and complementarity. This paper proposed a comprehensive demand response mechanism based on multi-energy complementarity from the perspective of industrial users, where the user’s demand for multi-energy, such as cooling, heating and electric, is included in demand response range. Meeting the peak load demand of higher authorities is regarded as optimization objective with the constraints of physical, energy balance and new demand response. The mixed integer linear programming method is used to solve the problem and the response strategy of electric/heating demand is obtained. An example analysis shows that the proposed strategy can further excavate the user’s response potential and guide the user to formulate reasonable demand response plan. Compared with traditional demand response strategies, the loss of user side is smaller, the response degree is higher, beneficial to achieve win-win of power grid companies and the users.