Mobile power generation system is connected to the power grid by synchronous grid connection

Abstract

The mobile power generation system adopts the operation method of connecting to the power grid in a synchronous grid-connected manner. The present invention connects the 10kV high-voltage bypass cables in parallel before and after the segmented equipment on the column of the 10kV line (L) of the power grid or the disconnection point (A) that can be manually operated. (L1), a movable 10kV bypass circuit breaker (B) is set on the high voltage bypass cable (L1), and a generator controller (PCC) is connected behind the output end of the high voltage bypass cable on the 10kV line (L) ) The external cable (L2) connected to the outlet of the 10kV generator (G), on the external cable (L2) is provided with a 10kV circuit breaker (C), the generator controller (PCC) controls the bypass circuit breaker (B) and the circuit breaker The device (C); includes the operation step of transferring the load to the grid in the same period and the operation step of exiting the power grid system in the same period. The invention has better mobility and economy, realizes rapid response and handling of emergencies, meets the need for power supply protection, realizes comprehensive non-stop maintenance of distribution networks, and improves power supply reliability.

Description

technical field [0001] The invention belongs to the technical field of bypass live operation, and is suitable for the situation that some equipment of the distribution network line needs power outage maintenance. In order to ensure the continuous power supply of the back-end load in the maintenance section, the 10kV high-voltage output provided by the high-voltage power generation vehicle can be used to realize the synchronous grid connection function. Realize seamless switching of power supply, so as to continuously and uninterruptedly supply power to the lines at the rear end of the maintenance section. Background technique [0002] With the economic and social development of the country and the improvement of people's living standards, the requirements for power supply reliability and power quality are getting higher and higher, and the dependence is getting stronger and stronger. As a working method such as a backup power supply, the generator car cannot avoid short-term...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems existing when the mobile power generation system is connected to the distribution network in operation at the same time, through a method of connecting the mobile power generation system to the power grid in a synchronous grid-connected manner

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