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Auto-compensated AC voltage regulator

An AC voltage stabilizer, compensation technology, applied in the field of power supply, to achieve the effect of stable operation and enhanced protection

Active Publication Date: 2020-10-30
李晓菁
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems existing in the existing compensated AC voltage stabilizer, the present invention provides a compensated AC voltage stabilizer, which includes an auto-coupling compensation type main circuit, a sampling comparison unit, a delay protection unit, an interlock control unit, Error detection control unit, trigger unit

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with accompanying drawing.

[0040] figure 1 It is a block diagram of the self-coupling compensation AC voltage stabilizer system, including a sampling comparison unit, a delay protection unit, an interlock control unit, an error detection control unit, a trigger unit and an auto-coupling compensation main circuit; Voltage sampling, output voltage level coding value P2; delay protection unit input voltage level coding value P2, output delayed voltage level coding value P3 and non-trigger zone control signal P4; interlock control unit input delayed voltage level coding value P3 and the non-trigger area control signal P4, output the trigger control signal P5; the trigger unit sends the trigger signal P6 to the self-coupling compensation main circuit according to the input trigger control signal P5, and controls the on-off of the thyristor in the thyristor switch group; error detection control The unit j...

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Abstract

The invention provides a compensated alternating current voltage stabilizer. The compensated alternating current voltage stabilizer comprises a self-coupling compensated main circuit, a sampling comparison unit, a delay protection unit, an interlocking control unit, an error detection control unit and a trigger unit; the sampling comparison unit samples input voltage and outputs a coded value of the voltage level, the delay protection unit outputs the delayed coded value of the voltage level and a control signal of a no-trigger zone to the interlocking control unit, the interlocking control unit outputs a trigger control signal, and compensation control is carried out. While the alternating current voltage stabilizer achieves interlocking control, the error detection control unit also judges the situations that the sampling comparison unit fails and outputs an invalid coded value, and the interlocking control unit has logical errors, a silicon-controlled switch group is protected basedon judging results, the effort of protection against the abnormal working process is effectively strengthened, so that the working process of alternating current voltage stabilization is more stableand reliable.

Description

technical field [0001] The invention relates to the technical field of power supplies, in particular to an auto-compensated AC voltage stabilizer. Background technique [0002] The existing compensating single-phase and three-phase AC voltage stabilizers have the advantages of wide range of voltage regulation, almost no distortion of the waveform, high overall efficiency and strong load adaptability. The principle is to automatically control the switching of different winding coils of the primary winding on the compensation transformer according to the level of the input voltage, using the ratio relationship between the primary side working winding and the secondary winding, or by adjusting the voltage applied to the primary winding , providing bidirectional and multi-level voltage compensation, so as to achieve the purpose of voltage regulation and stabilization. [0003] The disadvantage of the existing compensated AC voltage stabilizer is that when the motor is used to c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/30
CPCG05F1/30
Inventor 凌云徐敬成侯文浩王兵
Owner 李晓菁
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