On-line real-time stable control system and control method of electric power system

Abstract

The invention discloses an on-line real-time stable control system and control method of an electric power system. The control system comprises a stable control device at a plant and station end, an on-line decision making server at a dispatching end and a data communication interface; the stable control device is used for collecting power grid state information and fault information in real time, uploading the information to the on-line decision making server and receiving and executing a stable control strategy sent by the on-line decision making server; the data communication interface is connected between the stable control device and the on-line decision making server and used for data communication between the stable control device and the on-line decision making server; the on-line decision making server is used for receiving the real-time power grid state information uploaded by the stable control device, calculating an emergency control measure according to the power grid state information, generating the stable control strategy and sending the stable control strategy to the stable control device. According to the control system, real-time decision making and real-time controlling of the electric power system are achieved through the real-time power grid operating state and fault information collected by the stable control device by performing transient stability prediction on the basis of a super-real-time simulation technique and calculating the stable control strategy on line.

Description

technical field [0001] The invention relates to an online real-time stability control system of a power system, and also relates to a control method of the power system online real-time stability control system, which belongs to the technical field of power system safety and stability control. Background technique [0002] Power system safety and stability control is an economical and effective means to ensure the stable operation of the power system. According to the stability control of the power grid operation state, it is divided into five parts: preventive control, emergency control, out-of-step control, post-decommissioning control and recovery control. Among them, emergency control refers to the control carried out to prevent system stability from being damaged, operating parameters seriously exceeding the specified range, and accidents further expanding to cause large-scale power outages after the power system enters an emergency state or an extreme emergency state du...

AI Technical Summary

Problems solved by technology

The characteristics of this type of enterprise-owned power grid are: small capacity, relatively weak structure, weak or no connection with the large power grid, and installation of units with a large single-unit capacity and loads with a large single-group capacity in the network (compared to the self-provided power grid Capacity), lack of spinning reserve, poor operating conditions, prominent system security and stability issues, relying heavily on stability control measures, if the stability control measures are not perfect, it is prone to major blackouts that collapse the network

In actual operation, due to the mismatch of the stability control system strategy, many power grid collapse accidents have occurred, causing serious economic losses to the enterprise

Images