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Electric energy quality comprehensive regulation control system and control method

A comprehensive regulation and power quality technology, applied in the direction of AC network voltage regulation, reactive power compensation, etc., can solve problems such as voltage instability, poor power quality of the grid, and load failure to work normally, to avoid damage and ensure stable operation.

Pending Publication Date: 2022-03-08
GUANGDONG POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The embodiment of the present invention provides a power quality comprehensive adjustment control system and control method to solve the problem that the load cannot work normally due to poor power quality and unstable voltage of the power grid

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  • Electric energy quality comprehensive regulation control system and control method
  • Electric energy quality comprehensive regulation control system and control method
  • Electric energy quality comprehensive regulation control system and control method

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Embodiment Construction

[0016] In order to make the objects, technical solutions, and advantages of the present invention, the technical solutions of the present invention will be described with reference to the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiments are various embodiments of the present invention, not all of the embodiments, based on the embodiments of the invention, those of ordinary skill in the art without all other embodiments obtained under the premise of creative labor, It is within the scope of the invention.

[0017] figure 1 A structural diagram of a power quality integrated adjustment control system provided by the embodiment of the present invention, such as figure 1 As shown, the control system includes: a sequentially electrically connected rectifier module 10, the inverter module 20, and the load side of the rectifier module 10 are electrically connected to the grid; respectively, the rectifier module 10, the inverter module...

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Abstract

The embodiment of the invention discloses an electric energy quality comprehensive regulation control system and control method, and the system comprises a rectification module, an inversion module and a load which are electrically connected in sequence, and the AC side of the rectification module is electrically connected with a power grid; the controller is electrically connected with the rectification module, the inversion module and the load, and is used for collecting a power grid voltage, collecting a load input voltage, a load current and an inverter output current when judging that the power grid voltage exceeds a voltage set range, processing the load input voltage, the load current and the inverter output current to obtain an inversion driving signal, and outputting the inversion driving signal to the rectification module. The control module is used for controlling the inversion module to work and providing stable target voltage for the load, so that the problem that the load cannot work normally due to poor power quality and unstable voltage of a power grid is solved, safe, reliable and stable operation of the load is guaranteed, and the load is prevented from being damaged due to influence of power grid voltage fluctuation.

Description

Technical field [0001] Embodiments of the present invention relate to the technical field of electrical energy quality control, and more particularly to a comprehensive adjustment control system and control method of power quality. Background technique [0002] At present, with the rapid development of the economy and the increase in the living standards of residents, the use of electricity load in rural, urban villages and urban and rural joints, the weak development of distribution network is slow, leading to the power supply capacity and electricity load of rural distribution networks. The contradiction between demand is getting more serious, resulting in poor power quality in the user side, low voltage problem, directly affecting the user's normal electricity, while giving users a security hazard, user's electricity experience Extreme. Inventive content [0003] The embodiment of the present invention provides a combination of electrical energy quality adjustment control sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/12H02J3/16
CPCH02J3/12H02J3/16Y02E40/30
Inventor 张焕强
Owner GUANGDONG POWER GRID CO LTD
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