Power Flow Determination Method Considering Standby Automatic Switching Action in Static Security Analysis System

Abstract

The invention discloses a power flow determining method in a static safety analysis system in view of the operation of an automatic switching device of a standby power supply and belongs to the field of control. The method is characterized by setting an automatic switching device of standby power supply model in an online static safety analysis module; in the scanning of preconceived faults in the online static safety analysis module, adding an analyzing function of the operation of the automatic switching device of the standby power supply, achieving N-1 scanning after the operation of the automatic switching device of the standby power supply, computing the power flow after the operation of the automatic switching device of standby power supply and generating an accident preconceived text based on an analyzed result. By using a manner embedding power flow computation into the function of the automatic switching device of the standby power supply, the power flow determining method improves the accuracy of original power flow computation, enables a computed result to more reflect a real power flow distribution state of a power grid, has practical and reference values to dispatchers, achieves power supply continuity analysis for important electric power users, and achieves a dispatcher accident preconceive support function.

Description

technical field [0001] The invention belongs to the field of control, in particular to a method for determining a power flow in a static security analysis system. Background technique [0002] With the continuous development of modern power technology, the scale of the power network is getting bigger and bigger, and the complexity is getting higher and higher. [0003] With the increasing impact of regional natural disasters, geological disasters, environmental disasters and external damage on power grid security, higher requirements are put forward for the safe and stable operation of the power grid. The existing power grid monitoring technology cannot fully meet the needs of power grid development. In view of this situation, there is an urgent need to develop a series of practical and operable intelligent advanced applications on the intelligent dispatching technical support system to provide strong support for grid monitors to quickly handle faults, restore power supply, ...

AI Technical Summary

Problems solved by technology

For example, when a main transformer failure occurs in a substation, the static safety analysis module and DTS cannot correctly simulate the standby and automatic operation of the real power grid, and reasonably calculate the corresponding power flow changes, and at the same time cannot generate a reasonable and usable accident prediction text

In addition, the maintenance function of the standby automatic switching model is not opened in the system, and the dispatcher cannot independently maintain the standby automatic switching operation mode

Images