Power grid load aggregation control method, system and regulation and control device

The invention discloses a power grid load aggregation control method and system and a regulation and control device, and belongs to the application field of reinforcement learning in demand response. The control method provided by the invention overcomes the influence of a user fatigue effect on a load aggregation effect by utilizing a reinforcement learning means, and preferably selects a user with better historical response performance, lower fatigue degree and fewer selection times to send a demand response inquiry based on a combined online learning algorithm considering user fatigue, so that the user experience is improved. Therefore, when each demand response event has enough adjustable load, the user fatigue is strategically reduced, and the demand response adjustable capacity reduction caused by the user fatigue is avoided. The power grid load aggregation control system provided by the invention comprises a power grid dispatching center, a load aggregation control center, a load local control module a