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Digital filter air core power reactor

A technology of digital filtering and reactor, applied in the direction of harmonic reduction device, electrical component structure association, signal inductance without magnetic core, etc., can solve the zero-crossing deviation of the power supply network voltage, the operation interference of the power converter of the electronic equipment, etc. problem, to achieve the effect of reducing cost and significant passive filtering effect

Inactive Publication Date: 2017-03-22
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The further impact of voltage harmonics may be the deviation of the zero-crossing point of the power grid voltage
The operation of certain electronic devices (including power converters) triggered at voltage zero crossings may be seriously disturbed

Method used

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  • Digital filter air core power reactor
  • Digital filter air core power reactor
  • Digital filter air core power reactor

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Embodiment 3

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Abstract

The invention relates to a digital filter air-core power reactor. With the wide application of power electronic devices in the industrial field and the extensive use of power capacitor banks in the power system, the harmonic components in the grid operation have increased sharply, seriously affecting the power quality. The composition of the present invention includes: a wrapping coil (1), the wrapping coil is installed on the support frame (5), the 10% induction coil (2) is also installed on the support frame, the 10% induction coil surrounds the wrapping coil, The 10% tuning coil is connected to the IGBT inverter (3), the IGBT inverter is installed on the support frame, the IGBT inverter is connected to the controller (4) through the optical fiber (6), and the controller communicates with other sub-harmonics through the optical fiber The filtering branch inverter is connected. The invention is used in the frequency converter system.

Description

Digital filter air core power reactor Technical field: The invention relates to a digital filter air-core power reactor. Background technique: With the wide application of power electronic devices in the industrial field and the extensive use of power capacitor banks in the power system, the harmonic components in the operation of the power grid have increased sharply, which has seriously affected the power quality and endangered the safety of industrial enterprises. The effective operation of the production and power sector has drawn people's attention to harmonic issues, so filtering out harmonics and improving power quality has become an important task for the power sector. Harmonics are the Fourier series decomposition of periodic non-sinusoidal electricity. Harmonics are mainly generated by harmonic current sources: when a sinusoidal fundamental wave voltage is applied to a nonlinear device, the current absorbed by the device is different from the applied voltage wav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/01H01F17/02H01F27/40
CPCY02E40/40
Inventor 朱东柏徐晓东祝军
Owner HARBIN UNIV OF SCI & TECH