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Topology applied to flexible direct-current comprehensive voltage regulation device for suppressing common-mode interference

A voltage regulating device, flexible DC technology, applied in the direction of circuit devices, harmonic reduction devices, AC network voltage adjustment, etc., to achieve the effects of suppressing common-mode interference, isolating common-mode interference signals, and strong damping effect

Active Publication Date: 2021-12-21
QINGDAO TOPSCOMM COMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies and defects of the existing technology, the present invention provides a topology applied to the flexible DC integrated voltage regulating device to suppress common-mode interference, solves the problem of the flexible DC integrated voltage regulating device suppressing common-mode interference, and realizes the The grid voltage is isolated from the common-mode interference signal at the same time, achieving the goal of regulating the power quality and improving the service life of other electrical equipment

Method used

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  • Topology applied to flexible direct-current comprehensive voltage regulation device for suppressing common-mode interference
  • Topology applied to flexible direct-current comprehensive voltage regulation device for suppressing common-mode interference
  • Topology applied to flexible direct-current comprehensive voltage regulation device for suppressing common-mode interference

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] Such as figure 1 As shown, a topology applied to the flexible DC integrated voltage regulation device to suppress common-mode interference, including two six-phase common-mode inductors 010 and 012, two 4P AC circuit breakers 001 and 002, rectifier module 011, and inverter module 013 , 2 DC circuit breakers 021 and 022, 2 inductor modules 020 and 023, three-phase four-wire AC grid 000, positive and negative DC lines BUS+ and BUS-; the four input terminals of the six-phase common mode inductor 010 pass through 4P The AC circuit breaker 001 is connected to the three-phase four-wire AC grid 00...

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Abstract

The invention relates to the field of power distribution automation, and particularly discloses a topology applied to a flexible direct-current comprehensive voltage regulation device for suppressing common-mode interference. The topology comprises six-phase common-mode inductors 1 and 2, 4P alternating-current circuit breakers 1 and 2, a rectifier module, an inverter module, direct-current circuit breakers 1 and 2, inductor modules 1 and 2, a three-phase four-wire alternating-current power grid and positive and negative direct-current lines. The problem of common-mode interference suppression of the flexible direct-current comprehensive voltage regulation device is solved, common-mode interference signals are isolated while the voltage of the power grid is regulated, and the purpose of regulating the quality of electric energy is achieved.

Description

technical field [0001] The invention relates to the technical field of power distribution automation, in particular to a topology applied to a flexible DC integrated voltage regulating device to suppress common-mode interference. Background technique [0002] In recent years, due to the in-depth promotion of new rural construction work and the rapid development of rural economy, the number of high-power electrical equipment such as air conditioners, refrigerators, electric cookers, and induction cookers in the homes of rural residents has increased day by day, and the demand for rural electricity has grown rapidly. Insufficient power supply capacity, low voltage at the end of the line station area, reduced voltage quality, and reduced reliability of power supply have adversely affected residents' normal daily use of electricity. At the same time, the existence of these phenomena also makes some line equipment and transformers overwhelmed, making it difficult to meet the norm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/12H02J3/36H02J3/01H02M1/12
CPCH02J3/12H02J3/36H02J3/01H02M1/12H02J2003/365Y02E40/40Y02E60/60
Inventor 杨常战于瑞徐鹏宗国强
Owner QINGDAO TOPSCOMM COMM
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