An integrated no-load boost test platform for an intensive DC ice melting device

Abstract

The invention discloses an intensive direct current deicing device overall no-load voltage stepping-up test platform. The intensive direct current deicing device overall no-load voltage stepping-up test platform comprises an active power and reactive power source unit, a test component switchover device, a direct current voltage measurement device, a grid-connection voltage monitoring device and a voltage quality evaluation device, wherein the output end of the active power and reactive power source unit is connected with a low harmonic direct current deicing voltage conversion component and a static reactive compensation and active filtering component through the test component switchover device, the output end of the low harmonic direct current deicing voltage conversion component is connected with the voltage quality evaluation device through the direct current voltage measurement device, and the output end of the static reactive compensation and active filtering component is connected with the voltage quality evaluation device through the grid-connection voltage monitoring device. A no-load voltage stepping-up test of the direct current deicing component and the static reactive compensation and active filtering component can be realized simultaneously, effective guidance is provided for development of the intensive direct current deicing device overall no-load voltage stepping-up test platform, and the intensive direct current deicing device overall no-load voltage stepping-up test platform has the advantage of being simple in structure.

Description

technical field [0001] The present invention relates to the technical field of electrical engineering, in particular to an integrated no-load integrated DC ice-melting device for realizing a no-load boost test for the ice-melting components and static var compensation and active filter components of the intensive DC ice-melting device Boost test platform. Background technique [0002] Most of the existing DC ice-melting devices can only realize the DC ice-melting function, and they only run for a few short hours during the icing period of the winter line, and the devices are almost idle all year round. The intensive DC ice-melting device is a new type of ice-melting device, which can realize the functions of DC ice-melting, dynamic reactive power compensation and active filtering. The device operates in the state of reactive power compensation and active filtering most of the time. It can be switched to the DC ice melting state through a quick switching device, which greatl...

AI Technical Summary

Problems solved by technology

The ice-melting parts of the intensive DC ice-melting device consume active power, and the reactive power compensation and active filter parts compensate the reactive power. When the device is performing the overall no-load boost test, the test device needs to provide a certain amount of power according to the characteristics of the intensive DC ice-melting device. The active power of the capacity and the reactive power of the appropriate capacity, and the existing test platform is difficult to provide suitable active or reactive power at the same time, which brings great inconvenience to the no-load boost test of the intensive ice-melting device. Therefore, to carry out intensive Research on the overall no-load boost test platform of the type DC deicing device to improve the efficiency of device debugging and testing, which has important technical and economic value

A few universities and scientific research institutes at home and abroad have carried out some research work on the overall no-load boost test platform of the intensive DC deicing device, but the existing test platform has the following defects: defect 1, two different no-load boost test devices are used The ice-melting parts of the ice-melting device and the reactive power compensation and active filter components are tested separately, which increases the workload of the test and wiring and equipment investment; the second defect is that when the no-load boost test is performed on the reactive power compensation and active filter components , the power supply of the test device is directly taken from the 10kV high-voltage power supply, which increases the high-voltage risk of the test

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