Monitorable magnetically-controlled reactor

Abstract

The invention discloses a monitorable magnetically-controlled reactor comprising an electric reactor body, a thyristor, a power module, an energy-taking module, a photoelectricity interface module, a controller, a trigger module, a trigger feedback module and a protective trigger module, wherein the photoelectricity interface module comprises a light reception circuit unit and a light emitting circuit unit; the controller is connected with the photoelectricity interface module; the trigger module is connected with a gate pole of the thyristor and enables a synchronous current signal to be amplified and converted to a current pulse driving the gate pole of the thyristor, the trigger module comprises a preceding-stage amplifying circuit composed of a second audion and a third audion and a back-stage amplifying circuit composed of a first audion, a second diode and a third diode in series, and the preceding-stage amplifying circuit is in serial connection with the back-stage amplifying circuit; the trigger feedback module is used for collecting voltage at two ends of the thyristor and gate pole voltage to generate a voltage state feedback signal; and the protective trigger module is located between the trigger feedback module and the thyristor. According to the reactor, a thyristor trigger state can be returned to a control system, real-time monitoring and protection are conveniently carried out, and the reactor has the advantages of being precise in triggering, good in stability and little in power consumption.

Description

technical field [0001] The invention relates to a monitorable magnetic control reactor, which belongs to the technical field of reactors. Background technique [0002] In order to meet the requirements of long-distance and large-capacity transmission of electric energy in recent years, the transmission voltage is getting higher and higher; the scale of the power system is getting larger and larger, and the power generation continues to grow; The power support problem is becoming more and more prominent, and the power transmission capacity is limited. At the same time, due to the large-scale use of large-capacity single-phase loads and unbalanced loads, the problem of three-phase imbalance in the power grid is becoming increasingly prominent. In order to solve the above problems, a reactive power compensation device is introduced in the power system for reactive power compensation. The magnetron reactor (MCR) is commonly used, and it plays an important role in dynamic reacti...

AI Technical Summary

Problems solved by technology

The traditional electromagnetic triggering method cannot monitor the triggering state of the thyristor in real time, and cannot accurately grasp the actual triggering situation in real time, which is not easy to achieve the accuracy of triggering and the protection of the thyristor.

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