基于消息总线的综合能源系统时间序列潮流的协同仿真方法

A co-simulation method for time series energy flow of integrated energy system based on message bus

综合能源系统(Integrated Energy System,IES)中存在复杂的能量耦合关系和多重扰动变量,这给多能流联合潮流计算提出了新的挑战。首先从耦合元件和耦合变量的角度,分析了运用分解法求解联合潮流的思路。然后提出了基于消息总线的电、热、气联合潮流的协同仿真架构,建立了仿真子系统之间的消息发布与订阅机制。接着,为了满足仿真子系统之间迭代的要求以及时间序列潮流计算的要求,提出了IES协同仿真的时间同步规则。最后,以一个典型的区域IES为例进行了仿真计算。结果表明,该方法能支持多能流的时间序列潮流计算,且实现了协同仿真的收敛性。

There are complex energy coupling relationships and multiple disturbance variables in Integrated Energy Systems(IES).These pose new challenges to the calculation of multi-energy flow.First,the idea of solving combined energy flow by a decomposed method is analyzed from the point of coupling elements and coupling variables.Secondly,a cooperative simulation framework of electric,heat and gas energy flow based on a message bus is proposed,and the mechanism of message publishing and subscribing between simulation subsystems is established.Then,the time synchronization rules of IES collaborative simulation are proposed for the requirements of inter-iteration between subsystems and energy flow calculation of time series.Finally,a typical regional IES is taken as an example for simulation calculation.The results show that the proposed method can support a multi-function flow time series power flow calculation,and achieve convergence of collaborative simulation.