A Discrete-Continuous Reinforcement Learning Algorithm for Unit Commitment and Dispatch Problem

Abstract

With increasing uncertainties in power systems, reinforcement learning evolves as a promising approach for decision and control problems. This paper focuses on the unit commitment and dispatch problem, with startup and shutdown power trajectories involved, investigating it via reinforcement learning. First, we convert the problem into a Markov decision process, where constraints are tackled by projections and elaborate reward. Then, to cope with discrete commitment actions and continuous power outputs simultaneously, a discrete-continuous reinforcement learning algorithm is proposed by combining deep Q-network with soft actor-critic algorithm. Finally, numerical examples are done, verifying the effectiveness of the presented algorithm.