Abstract

With the deepening of power market reforms, the emergence of independent users of the distribution network has caused the power system to face multi-layer coordination. Under this background, a collaborative optimization scheduling of the transmission and distribution networks method considering demand response was proposed to realize interaction among transmission network, distribution network and load. It was oriented to a three-layer model including transmission system operator(TSO), distribution system operator(DSO) and load aggregator (LA). TSO and DSO achieved collaborative optimization to meet the consistency constraints of boundary power. DSO and LA formed a Stackelberg game model to interact through electricity price and power. Then, combined with KKT transform and other algorithms to solve the boundary power and the optimal electricity price. Through the simulation example, it was verified that the method can achieve the overall economic operation of the system, which provided a new idea for coordinated energy management of transmission and distribution networks.

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