Compensation type contactless mains supply voltage stabilizer

Abstract

The invention relates to a compensation type contactless mains supply voltage stabilizer which comprises an autotransformer, a compensation transformer, a controller, a first silicon controlled rectifier compensator, a second silicon controlled rectifier compensator and a third silicon controlled rectifier compensator. The autotransformer comprises three winding connecting ends, and the compensation transformer comprises a plurality of first primary winding ends, a second primary winding end and two secondary winding ends. The first winding connecting end is electrically connected with a live wire, the last winding connecting end is electrically connected with the zero wire, the three winding connecting ends are electrically connected with the third silicon controlled rectifier compensator through the second silicon controlled rectifier compensator, and the second primary winding end is electrically connected with the live wire and the zero wire through the first silicon controlled rectifier compensator. Each first primary winding end is electrically connected with the third silicon controlled rectifier compensator; and the two secondary winding ends are connected in series with a live wire. Commercial power voltage stabilization is achieved through on-off control over all the silicon controlled rectifiers, a contactless compensation voltage stabilization mode is adopted, and the defects in an existing commercial power voltage stabilization technology based on a relay are overcome.

Description

Technical field [0001] The present invention relates to the field of main management technologies, and more particularly to a compensation-free coincidental main pressure. Background technique [0002] Municipal electricity, the AC (AC) we usually use, in the actual market power supply system, often due to the high power supply line, the power supply line load is unstable, and the main electric wave will accelerate the aging of electrical equipment Reduce life, severely make electrical equipment burns; also reduce the capacity of transmission and electrical power generation, reduce power supply line charging power; some equipment (such as medical equipment) is extremely high. Therefore, it is important to reduce the mainstay of electricity fluctuations. [0003] In the conventional main voltage regulator technology, it is mainly through the relay to change the tap or carbon brush to move the contact point, which is the purpose of changing the number of turns ratio of the transfor...

AI Technical Summary

Problems solved by technology

[0003] In the existing voltage stabilization technology for mains fluctuations, the taps or carbon brushes of the transformer are mainly used to move the contact point through the relay. Although this method achieves the purpose of voltage stabilization by changing the input and output turns ratio of the transformer, Because it is a voltage stabilizing method with contacts, and the 220V mains voltage will be directly applied to the circuit, there are a series of problems such as low efficiency, poor anti-interference ability, slow response speed, and high harmonic components of output voltage and current; at the same time, the The voltage stabilizing device corresponding to the method is usually large in size, and it is extremely inconvenient to use and install

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