Method for making mobile power generation system be connected into power grid for operation in synchronous grid connection mode

Abstract

The invention provides a method for making a mobile power generation system be connected into a power grid for operation in a synchronous grid connection mode. According to the method, a 10-kV high-voltage bypass cable (L1) is connected to the front portion and the rear portion of a pole-mounted segmentation device or a switch-off point (A) in parallel, wherein the switch-off point (A) can be operated manually; a mobile 10-kV bypass breaker (B) is arranged on the high-voltage bypass cable (L1); an external cable (L2) connected with an outlet of a 10-kV power generator (G) provided with a power generator control system (PPC) is connected to the 10-kV circuit (L) and located behind the output end of the high-voltage bypass cable; a 10-kV breaker (C) is arranged on the external cable (L2); a controller of the power generator control system (PPC) controls the bypass breaker (B) and the breaker (C). The method comprises the step of synchronous grid connection load switching and supply operation and the step of synchronous grid connection power grid system exiting operation. By the adoption of the method, good mobility and economy are achieved, quick response to and handling of emergencies are achieved, the requirement for maintaining power supply is met, comprehensive non-powercut overhauling of a power distribution network is achieved, and the power supply reliability is improved.

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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