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Harmonic voltage stabilization control system

A voltage stabilization and harmonic technology, applied in the field of harmonic voltage stabilization management system, can solve the problems of narrow voltage stabilization range, inability to filter out high-order/multiple harmonics, long response time, etc. High-order/multiple harmonics, excellent load-carrying characteristics, long voltage stabilization time

Inactive Publication Date: 2014-02-26
西安合电电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical problems of narrow voltage stabilization range, long response time, and inability to filter out high-order / multiple harmonics in existing voltage regulators, and provides a wide voltage stabilization range, long voltage stabilization time, and ability to filter out Harmonic Voltage Stabilization Control System for High / Multiple Harmonics

Method used

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Embodiment Construction

[0015] like figure 2 As shown, the present invention includes a surge absorber 2, a filter 3, a rectifier 4, an inverter 5 and a controller 7, and the absorber 2, filter 3, rectifier 4 and inverter 5 are sequentially connected, and the controller 7 Connect with rectifier 4 and inverter 5.

[0016] The mains 1 is connected to the input end of the surge absorber 2 , and the output end of the inverter 5 is connected to the load 6 .

[0017] The mains power 1 is suppressed by the surge absorber 2 first, then filtered by the filter 3 , then converted into DC power by the rectifier 4 , and finally converted into a sine wave AC power by the inverter 5 and supplied to the load 6 .

[0018] The controller 7 is used to control the work of the rectifier 4 and the inverter 5. It adopts the high-performance DSP chip of TI Company as the main control chip to complete functions such as current and voltage A / D sampling and SPWM pulse wave output. Optical fiber communication is used between...

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Abstract

The invention relates to a harmonic voltage stabilization control system which solves the technical problems that an existing voltage stabilizer is narrow in voltage stabilization range, long in response time, and incapable of filtering higher / multiple harmonics. The harmonic voltage stabilization control system comprises a surge absorber, a filter, a rectifier, an inverter and a controller connected with the rectifier and the inverter. The surge absorber, the filter, the rectifier and the inverter are connected in sequence. The harmonic voltage stabilization control system is widely applied to a railway system.

Description

technical field [0001] The invention relates to a voltage stabilizing system, in particular to a harmonic voltage stabilizing control system. Background technique [0002] At present, with the rapid development of electrified railways, higher and higher requirements are put forward for the safety and reliability of power supply. Because the power supply voltage has a large fluctuation range, many harmonic components, and strong interference, etc., a voltage stabilizer is used to stabilize the secondary equipment. [0003] However, the existing voltage stabilizer uses electromagnetic exchange. When a sinusoidal AC voltage is applied to both ends of the primary coil, there is an alternating current in the wire and an alternating magnetic flux is generated, which passes through the primary coil and the secondary coil along the iron core. The stage coil forms a closed magnetic circuit. The voltage stability range of existing voltage stabilizers is generally between 10% and 20%...

Claims

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Application Information

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IPC IPC(8): H02M5/458H02M7/5387
Inventor 陈明宝张帆赵立张晓辉
Owner 西安合电电气有限公司