Distributed coordinated control optimization method for urban rail transit ground supercapacitor energy storage system
A distributed coordination and super capacitor technology, applied in the direction of AC network circuits, circuit devices, and AC network load balancing, etc., can solve the problem of not guaranteeing the improvement and optimization of energy-saving effects of multiple energy storage systems, reducing computational complexity, The effect of improving reliability and efficiency
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Embodiment 1
[0047] Such as image 3 As shown, Embodiment 1 of the present invention provides a distributed coordinated control optimization method for an urban rail transit ground supercapacitor energy storage system, including the following process steps:
[0048] Step S110: Obtain the SOC state of the supercapacitor, the state of the substation and the running state of the train at a certain moment, and construct a state set;
[0049] Step S120: Using the supercapacitor in each substation as an energy storage agent, determine the revenue function of each energy storage agent according to the theoretical analysis of the energy flow of the traction power supply system and the multi-objective coordination optimization function;
[0050] Step S130: Construct a multi-agent dynamic game model according to the state set and the revenue function;
[0051] Step S140: Based on the multi-agent dynamic cooperative game model, solve and optimize the distributed coordinated control of the ground sup...
Embodiment 2
[0069] Such as Figure 4 As shown, a multi-agent model of an urban rail transit ground energy storage system provided by Embodiment 2 of the present invention is used for distributed optimization control of a supercapacitor energy storage system on the multi-agent model.
[0070] Based on the distributed control architecture, each energy storage system makes independent decisions to maximize its own benefits. In order to realize the coordinated control of energy storage devices in different substations and improve the overall efficiency of the power supply system, this strategy establishes a dynamic game model for multiple energy storage systems, as shown in equation (1). Each energy storage system is a game participant; under the assumption that vehicle-to-vehicle and vehicle-to-ground communication in urban rail transit can be realized, the state of the power supply system is defined, including the operating state of trains, substations and other energy storage systems; acco...
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