Automatic controller for dual-power conversion

Abstract

The invention discloses an automatic controller for dual-power conversion. The automatic controller comprises a primary transformer, a secondary transformer, a voltage detection circuit, a power circuit, a switching circuit, a switching position feedback circuit of the switching circuit, a singlechip, a keyboard circuit, a display circuit and a communication circuit, wherein the voltage detection circuit acquires the AB line voltage and AC line voltage of the primary and secondary transformers respectively; the singlechip converts the acquired AB line voltage and AC line voltage of the primary and secondary transformers into three-phase voltage respectively, compares the three-phase voltage with a set value of the three-phase voltage, and transmits a corresponding power switching instruction to the switching circuit; and the switching circuit finishes corresponding power switching action. The automatic controller for the dual-power conversion has the advantages that: two detection transformers can be eliminated; a detection mode is simplified; the power circuit consists of a voltage regulator for self power supply, so that an external power supply is eliminated, and the cost of the automatic controller for the dual-power conversion is decreased; and the communication circuit is additionally arranged, so that functions are further completed, and the automatic controller is convenient to use.

Description

Technical field [0001] The invention relates to a control device, in particular to a dual power conversion automatic controller. Background technique [0002] At present, dual power converters are used in some important occasions that require uninterrupted power, such as the primary load required in building electrical. The continuity of power supply has been widely used in high-rise buildings, post and telecommunications, coal mines, military facilities, large-scale industrial assembly lines, and fire-fighting places that require uninterrupted power supply for certain special user departments, such as hospitals and airports. In order to ensure the reliability and continuity of power supply, two power sources are generally used. One power supply is the main power supply and the other is the secondary power supply. Once the main power supply fails to work, the secondary power supply is required to work immediately to maintain the electrical equipment. Normal operation requires a ...

AI Technical Summary

Problems solved by technology

[0003]Traditional dual power conversion controllers need to use three transformers to detect three-phase voltage when detecting power, or add AC power to a constant DC voltage to Send to the A / D port of the microprocessor, multiple detection transformers cause higher cost of the controller

In the absence of communication function, it is impossible to provide signals to the superior monitoring equipment, and the host computer cannot set the working mode of the dual power conversion controller through the communication port.

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