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目前,研究以节能降耗为目标的发电权交易模型时,主要关心的是交易前后煤耗的变化情况,没有充分考虑发电权交易对系统网损的影响。当系统由于发电权交易发生阻塞,而需要削减交易对时,一般采取阻塞管理方法,较少考虑网损的影响,因而无法全面衡量各发电权交易对的节能效果。以节能降耗为目标,建立了发电权交易模型,综合考虑系统网损和煤耗的因素,能有效指导发电权交易的实施,确保交易发生后系统节能量最优。当发电权交易引起某些线路发生阻塞时,利用该模型进行阻塞管理,节能降耗的效果较好。以IEEE-14节点系统为算例,验证了该模型在选择交易对和进行阻塞调度方面的有效性。
At present, when studying the transaction model of power generation with energy-saving and consumption-reducing as its goal, the main concern is the change of coal consumption before and after the transaction, and the influence of power trading on the system loss is not fully considered. When the system is blocked due to the transaction of power generation and the transaction pairs need to be cut down, the congestion management method is generally adopted and the influence of the network loss is less taken into consideration. Therefore, the energy saving effect of each transaction right can not be fully measured. With the goal of saving energy and reducing consumption, a trading model of power generation rights is established. Considering the factors of system loss and coal consumption, it can effectively guide the implementation of power generation trading and ensure the optimal system energy saving after the transaction occurs. When the transaction of power generation causes some lines to block, the model is used for congestion management, and the effect of energy saving and consumption reduction is better. Taking the IEEE-14 node system as an example, the validity of this model in choosing transaction pairs and blocking scheduling is verified.