A calculation method for node energy price of comprehensive energy system considering network characteristics
An integrated energy system model considering the network characteristics is constructed to calculate the real marginal energy cost of the system,and the method to solve the node marginal energy price of the integrated energy system considering the dynamic characteristics of the network is studied.First,a comprehensive energy system model considering network characteristics is constructed based on energy balance constraints.Then,based on the grid direct current power flow model,the power transmission distribution factor is used to apportion the network loss,and the node marginal price is decomposed into cost component,loss component and congestion component.The solution method to the node marginal price is obtained,and the solution method of the node gas price and node heat price is also obtained by analogy.Finally,the node energy price is solved through numerical simulation,and the analysis shows that when the grid is blocked in a certain area,the marginal price here increases,and the node marginal signal can be used to encourage users in the blocked area to change their energy consumption behaviours and alleviate the congestion.
integrated energy systemnode energy pricenetwork characteristicscombined heat and power
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