Microgrid hybrid coordination control method based on reinforcement learning and multi-agent theory

Abstract

The invention discloses a microgrid hybrid coordination control method based on reinforcement learning and a multi-agent theory. The method comprises the steps of designing a transition voltage layercontrol strategy based on a voltage layering mode, designing a double-energy-storage sub-role control strategy, and enabling two energy storage to work separately when an energy storage unit works ina voltage stabilization mode; when energy storage assistance is needed to continuously absorb power or supplement power, converting the two-energy-storage working mode into cooperative charging / discharging; constructing an action space and a state space based on Q-Learning; designing a reinforcement learning control framework based on multiple agents, specifically, designing a basic updating ruleof a state-action pair and selecting a corresponding value function; designing a basic action selection mechanism and a return value strategy, specifically, designing a selection strategy adopted by the system in an initial state and a return value in each state; and designing a reinforcement learning algorithm flow, specifically, designing a proper algorithm flow based on the strategy to realizea control strategy.

Description

technical field [0001] The invention relates to the field of smart grid control, in particular to a micro grid hybrid coordination control method based on reinforcement learning and multi-agent theory. Background technique [0002] With the rapid development of the economy, my country's energy consumption is increasing year by year, and the total consumption of non-renewable energy such as fossil energy is growing rapidly. my country's power supply still mainly comes from thermal power generation, but with the overexploitation of non-renewable energy such as fossil energy and the negative impact on the environment in the process of traditional power generation is becoming more and more serious, my country and the world are increasingly dependent on wind, light, water, etc. Research on renewable energy power generation has gradually been put on the agenda. The development and utilization of green and clean energy can not only make a certain contribution to environmental prote...

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Problems solved by technology

However, most of the articles use a single energy storage solution. A single energy storage solution needs to switch charging and discharging continuously when the stable voltage fluctuates. Not only the performance is average, but also the life of the energy storage will be greatly reduced. The final dual energy storage control, but the dual energy storage control strategy is single

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