Plug-and-play series power quality compensator and compensation control method

Abstract

The invention discloses a plug-and-play series power quality compensator and a compensation control method and belongs to the field of power compensators. The plug-and-play series power quality compensator is characterized in that a voltage detection module is used to detect real-time voltage of a load; a voltage is applied to a secondary side of a special transformer via an inverter to generate feedback voltage; the special transformer includes a primary side winding and a secondary side winding, the primary side winding is used as a busbar connected to a power grid, the secondary side winding is tightly stacked in the axial direction and connected with the output end of an inversion control module; the input end of the inversion control module is connected with direct-current side voltage, the control end of the inversion control module is connected to the output end of the voltage detection module, and the inversion control module is used for outputting feedback control voltage forthe secondary side of the special transformer according to a reference voltage signal. The plug-and-play series power quality compensator is simple to connect, has no influence on the structure of a power grid, has flexible control modes and meets the needs of different scenes.

Description

technical field [0001] The invention belongs to the field of power compensators, and more specifically relates to a plug-and-play connection mode of a series power quality compensator. Background technique [0002] With the advancement of science and technology, the power industry has developed rapidly. After users meet the requirements for the quantity of electric energy, the requirements for the quality of electric energy are also getting higher and higher. At the same time, on the one hand, the use of various nonlinear loads, especially the use of power electronic equipment, has brought many power quality problems and greatly deteriorated the operating environment of the power grid; on the other hand, various power quality sensitive equipment The massive popularization of power makes the impact of power quality problems on production and life more significant. In this context, research on how to eliminate the impact of power quality problems on users has become a very ur...

AI Technical Summary

Problems solved by technology

[0005] (1) The structure of the traditional active series compensator is complex. When connected in series to the power grid, the original structure of the power grid needs to be modified. The installation method is cumbersome and cannot be plugged and played.

[0006] (2) The traditional active series compensator uses a relatively complex control algorithm, but the control method is relatively simple, which is not conducive to adjustment according to the actual scene

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