Switch step switching type ac voltage regulator

An AC voltage regulation and switching technology, which is applied in the direction of conversion equipment that can be converted into DC without intermediate conversion, can solve the problems of large switching consumption, no purification function, and external interference cannot be effectively suppressed and eliminated. Cost reduction, safety protection, and the effect of reducing the number of uses

Inactive Publication Date: 2003-10-22
赵忠臣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical solution proposed by me before [invention patent application number: 02104004.4, application date: February 26, 2002] has been proved to be effective by the project, but because the transformer is tapped in parallel, the linear reactor needs to be equipped with two tap windings, and the switching consumption More, because it does not have the purification function, it cannot effectively suppress and eliminate external interference

Method used

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  • Switch step switching type ac voltage regulator
  • Switch step switching type ac voltage regulator
  • Switch step switching type ac voltage regulator

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 2

[0027] Specific implementation application mode one

[0028] Turn on

Switch

The output voltage

(V)

Parameters for two adjacent switches to be turned on together

Output voltage (V)

Switch on

Loop circulation (A)

1

275

265

1-2

5

2

255

245

2-3

5

3

235

225

3-4

5

4

215

205

4-5

5

5

195

186

5-6

5

6

176

166

6-7

5

7

158

[0029] Specific implementation application mode two

[0030] Turn on

Switch

The output voltage

(V)

Parameters for two adjacent switches to be turned on together

Output voltage (V)

Switch on

Loop circulation (A)

1

159

169

1-2

5

2

178

188

2-3

5

3

19...

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PUM

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Abstract

This invention relates to a switch stepping throw over AC governor applying ordered connection and stepping throw ovr on the tap of linear tapped reactor and a transofrmer to keep a continuous circu8it to make the switch throw-over not generate counter-electromotive force and impact current. The linear tapped reactor forms an low pass filter with AC filter capacito to connect in series between power supply and a load at the same time when effectively limitting the loop circulation flow generated from turning-on two adjacent switches to suppress and absorb the surge current, peak voltage intruded at the input and output ends so as to either protect the switch or carry out two-way purification.

Description

Technical field [0001] The invention relates to a switch step switching type AC voltage regulator, which belongs to the technical field of electrical control. technical background [0002] In the prior art that uses switches connected to transformer taps to perform AC voltage regulation, in order to ensure the safety of switches, especially electronic switches and windings, several technical solutions are adopted: one is to connect each tap of the transformer in series. Current-limiting reactor. This solution requires the same number of taps as the reactor. When the number of taps is large, the volume increases, the weight increases, and the cost rises; the other is to connect current-limiting resistors in series on each tap of the transformer. It not only increases power consumption, generates unnecessary heat, but also reduces efficiency; the other is to switch directly by using a microcomputer to control an electronic switch. Whether it is auto-coupling ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/12
Inventor 赵忠臣
Owner 赵忠臣
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