计及需求响应的电网安全优化调度模型

针对传统的发电日前调度方案,提出一种计及需求响应的电力系统安全优化调度模型.以峰谷分时电价为基础,建立激励补偿机制,鼓励用户积极参与需求侧资源调度,从而使得“削峰填谷”的效果更加明显.同时,为了合理配置电网运行的备用容量,在所提出的模型中融入期望停电损失,保证电网运行的安全性.基于IEEE24节点的算例分析表明,所提出的考虑需求响应和期望停电损失的电力优化调度模型可以在保证一定可靠性水平的前提下,降低电网的运营成本,实现市场环境下电力系统的经济和安全运行.

Safe and optimized scheduling of power system considering demand response

Different from the conventional day-ahead generation schedules, an optimal dispatch model is proposed considering the demand response(DR) and reliability measures. In order to address the increasing peak-valley gap, the time-of-use(TOU) tariff has been widely implemented in China. On the basis of it, a dynamic incentive compensation mechanism is established to motivate consumers to take an active part in DR. Meanwhile, to deal with the reasonable configuration problem of reserve capacity, the cost of expected energy not supplied(EENS) is combined into the objective function, which ensures the security of power grid operation. The results of IEEE 24-bus system show that the model considering incentives and the cost of EENS can decrease the operation cost effectively. On the premise of guaranteeing the reliability level, the power system can operate economically and safely in current market conditions.