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Auto-compensated AC voltage regulator control method

A technology of AC voltage stabilization and control methods, which is applied in the direction of control/regulation systems, instruments, and adjustment of electrical variables, etc., to achieve the effect of strengthening protection and avoiding program runaway

Active Publication Date: 2020-09-01
南京市笛思智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problems existing in the existing auto-compensation AC voltage stabilizer, the present invention provides an auto-compensation AC voltage stabilization control method, including:

Method used

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  • Auto-compensated AC voltage regulator control method
  • Auto-compensated AC voltage regulator control method

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with accompanying drawing.

[0037] figure 1 It is a block diagram of the system composition of the self-coupling compensation AC voltage stabilizer. The sampling comparison unit performs voltage sampling on the AC power supply voltage, outputs the voltage level comparison value P1 to the encoding unit, and the encoding unit outputs the voltage level encoding value P2; the delay protection unit inputs the 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 code value P3 and non-trigger zone control signal P4, output trigger control signal P5; trigger According to the input trigger control signal P5, the unit sends the trigger signal P6 to the main circuit of the self-coupling compensation type to control the on-off of the thyristor in the thyristor switch group; the error detection control...

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Abstract

A self-coupling compensation-type AC voltage-stabilization control method comprises the steps of dividing a voltage of an AC power supply into a plurality of voltage class zones, selecting one or moreof output voltages of a self-coupling transformer to be superposed by a thyristor switch group, and taking the output voltage as an excitation coil voltage of a compensation transformer for voltage compensation; judging whether a trigger control signal of controlling the thyristor switch group is correct or not, and turning a working power supply of a trigger unit if the trigger control signal iscorrect; and cutting the working power supply of the trigger unit if the trigger control signal is wrong, controlling to cut off a power supply voltage of an input side of the self-coupling transformer so as to protect the thyristors switch group. By the voltage-stabilization control method, interlocking control is achieved, the thyristor switch is protected according to a fact whether a logic error occurs in a control circuit or not, the abnormal protection effort of the working process is effectively improved, so that the working process of AC voltage stabilization is more stable and reliable.

Description

technical field [0001] The invention relates to the technical field of power supplies, in particular to an auto-compensation AC voltage stabilization control method. Background technique [0002] The existing auto-compensated AC voltage stabilizer has the advantages of wide voltage stabilization range, almost no distortion of 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 control the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/44
CPCG05F1/44
Inventor 周维龙凌云文定都刘建华
Owner 南京市笛思智能科技有限公司
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