This paper develops an integrated optimal power flow (OPF) tool for distribution networks in two spatial scales. In the local scale, the distribution network, the natural gas network,and the heat system are coordinated as a microgrid. In the urban scale, the impact of natural gas network is considered as constraints for the distribution network operation. The proposed approach incorporates unbalance three-phase electrical systems,natural gas systems, and combined cooling, heating, and power systems. The interactions among the above three energy systems are described by energy hub model combined with components capacity constraints. In order to efficiently accommodate the nonlinear constraint optimization problem, particle swarm optimization algorithm is employed to set the control variables in the OPF problem. Numerical studies indicate that by using the OPF method, the distribution network can be economically operated. Also, the tie-line power can be effectively managed.
|Title of host publication||2016 UKACC 11th International Conference on Control (CONTROL)|
|Number of pages||7|
|Publication status||Published - 10 Nov 2016|
|Event||11th UKACC International Conference on Control (Control 2016) - Queen's University Belfast, Belfast, United Kingdom|
Duration: 31 Aug 2016 → 02 Sep 2016
|Conference||11th UKACC International Conference on Control (Control 2016)|
|Period||31/08/2016 → 02/09/2016|