Low-carbon Optimal Dispatching Method for the Medium and Low Voltage Distribution System Considering the Aggregated Power of Station Resources
Many distributed energy resource integrations strengthen the interactive ability of the medium and low voltage distribution systems.How to effectively exploit the dispatching potential of energy resources in the low-voltage station area and assist the medium voltage distribution system to carry out low-carbon dispatching has become an urgent problem to be solved.Consequently,a low-carbon optimal dispatching method for the medium and low voltage distribution system is proposed considering the aggregated power of station resources.Firstly,a virtual battery aggregation model for low-voltage station areas is established,which considers the resource operation characteristics,network topology,and the absorbing demand for wind and photovoltaic to fully exploit each station area's dispatching potential fully.Secondly,the variation of carbon emission intensity for energy storage and station area aggregation model is analyzed by carbon emission flow.The carbon potential of the node was used as the regulating signal to construct a distributed low-carbon optimal dispatching model for the medium and low-voltage distribution system.The medium voltage layer optimizes the dispatching of both operation and carbon emission;The station area layer is the economic dispatching that responded to the carbon potential of node.The distributed alternating direction method of multipliers is applied to solve the model.Finally,the improved medium and low voltage distribution system is simulated by example,and the results show that the proposed aggregation model and dispatching method can improve the consumption of new energy and reduce the system operating cost and carbon emissions.
medium and low voltage distribution systemvirtual batterycarbon emission flowlow-carbon optimal dispatchingcarbon potential of nodedistributed
万方数据
维普
