Integrated intelligent three-phase alternating current phase shift voltage regulation module and control system

Abstract

The invention relates to an integrated intelligent three-phase alternating-current phase-shifting voltage-regulating module and a control system. The integrated intelligent three-phase alternating-current phase-shifting voltage-regulating module comprises a power supply circuit, an external induction signal conversion circuit, a silicon controlled rectifier trigger circuit, a silicon controlled rectifier module, a three-phase current detection circuit, a three-phase power supply phase detection circuit, a heat dissipation base temperature detection circuit and an MCU. The silicon controlled rectifier trigger circuit can control on and off of the silicon controlled rectifier module. The power supply circuit, the external induction signal conversion circuit, the three-phase current detection circuit, the three-phase power supply phase detection circuit and the heat dissipation base temperature detection circuit are all connected to the input end of the MCU, and the silicon controlled trigger circuit is connected to the output end of the MCU. By the adoption of the technical scheme, the module is diversified in function, corresponding control modes can be selected according to different requirements of actual application, and meanwhile the module has the function of preventing module damage caused by over-temperature, over-current, phase loss, phase dislocation, three-phase current imbalance and the like.

Description

technical field [0001] The invention relates to the field of electrical switches, in particular to an integrated intelligent three-phase AC phase-shifting voltage regulation module and a control system. Background technique [0002] The existing integrated three-phase AC phase-shifting voltage regulation module includes a housing, a heat dissipation base, an external terminal, a thyristor chip, a thyristor trigger circuit, an external induction signal conversion circuit, and the like. The thyristor chip is installed on the heat dissipation base, and its on-off is controlled by the thyristor trigger circuit to realize the function of phase-shifting and voltage regulation. The control of the on-off of the thyristor chip is controlled by the hardware signal conversion circuit to control the thyristor trigger. circuit is realized. [0003] However, the module "adaptive control" often used in practical applications, such as: motor start; a variety of analog signal input "compreh...

AI Technical Summary

Problems solved by technology

[0003] However, the module "adaptive control" often used in practical applications, such as: motor start; a variety of analog signal input "comprehensive control", such as: injection molding machine; system closed-loop "PID control", such as: industrial heating furnace temperature Control; functions such as "remote control" of multi-module networking cannot be realized on existing modules. Protection functions such as phase power current unbalance detection and three-phase power supply phase error detection cannot be realized due to backward technical means, small space of the module, and high implementation cost. Furthermore, the protection functions of the module and corresponding electrical equipment cannot be realized.

[0004] Therefore, the phase-shifting and voltage-regulating modules on the existing market have a single function, and the phase-shifting and voltage-regulating modules with corresponding functions cannot be selected according to actual application requirements. At the same time, potential design defects lead to a great increase in the possibility of module damage. Shortcomings, realize intelligent control and protection, and creatively solve the legacy problems of AC phase-shifting and voltage-regulating modules

Images