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Universal servocontrol platform device for motor-operating mechanism of high-voltage switch apparatus and method

A technology of operating mechanism and servo control, applied in the direction of AC motor control, electronic reversing motor control, power device inside the switch, etc., can solve the problems of complex operation, large overvoltage, non-replacement, etc., and achieve good control effect Effect

Inactive Publication Date: 2009-08-26
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current high-voltage switchgear motor operating mechanism servo control device is not equipped with voltage transformers and current transformers, and cannot measure the grid voltage and current values ​​​​in real time, and does not operate according to the real-time status of the grid. The maximum current is carried out, so that the impact force of the switch is large, the contact rebounds multiple times, the mechanical wear is large, the interception and the large overvoltage are generated, the switching effect is not good, and the electric energy is wasted.
At the same time, the servo control device of the motor operating mechanism of the traditional high-voltage switchgear can only be adapted to one type of motor operating mechanism and cannot be replaced. The operation is complicated, the production cost is high, and manpower and material resources are wasted.

Method used

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  • Universal servocontrol platform device for motor-operating mechanism of high-voltage switch apparatus and method
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  • Universal servocontrol platform device for motor-operating mechanism of high-voltage switch apparatus and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] Embodiment 1: wherein the operating mechanism is a permanent magnet DC rotating motor, the model selected for the DSP chip is TMS320LF2407A, the model selected for the energy storage filter capacitor is 3300μF / 450V, the model selected for the isolation drive circuit is IR2130, and the selected model for the level conversion chip is The model is MAX3232, the model of the transfer bridge device 12 is RS232, the voltage dividing resistor is selected as 200Ω, the speed of the grating sensor 8 is 4.8m / s, and the resolution is 1μm.

[0100] The device as figure 1 As shown, it includes an operating mechanism, a main circuit 10 and a control circuit 6. The operating mechanism includes a permanent magnet DC rotating motor 5, a connecting rod 4, a high voltage circuit breaker, a temperature sensor 13, a voltage sensor and a grating sensor 8, and the permanent magnet DC rotating The motor 5 is connected to the high-voltage circuit breaker through the connecting rod 4, and the main...

Embodiment 2

[0180] Embodiment 2: The operating mechanism is a permanent magnet DC linear motor, the motor is a permanent magnet DC linear motor with a position sensor, the model selected for the DSP chip is TMS320LF2407A, the model selected for the energy storage filter capacitor is 3300μF / 450V, and the isolated drive The selected model of the circuit is IR2130, the selected model of the level conversion chip is MAX3232, the model of the transfer bridge device 12 is RS232, the voltage dividing resistor is selected as 200Ω, the speed of the grating sensor 8 is selected as 4.8m / s, and the resolution is 1μm.

[0181] The device as Figure 13 As shown, it includes an operating mechanism, a main circuit 10 and a control circuit 6. The operating mechanism includes a permanent magnet DC linear motor 14, a connecting rod 4 and a high-voltage circuit breaker, a temperature sensor 13, a voltage sensor and a grating sensor 8. The motor passes through the connecting rod 4 Connect the high-voltage cir...

Embodiment 3

[0260] Embodiment 3: wherein the operating mechanism is a cylindrical linear induction motor, the motor is a permanent magnet DC linear motor with a position sensor, the model selected for the DSP chip is TMS320LF2407A, and the model selected for the energy storage filter capacitor is 3300μF / 450V, isolated The selected model of the driving circuit is IR2130, the selected model of the level conversion chip is MAX3232, the model of the transfer bridge device 12 is RS232, the voltage dividing resistor is selected as 200Ω, the speed of the grating sensor 8 is selected as 4.8m / s, and the resolution is 1μm.

[0261] The device as Figure 16 As shown, it includes an operating mechanism, a main circuit 10 and a control circuit 6. The operating mechanism includes a cylindrical linear induction motor 15, a connecting rod 4, a high-voltage circuit breaker, a temperature sensor 13, a voltage sensor and a grating sensor 8, and the motor passes through the connection. Rod 4 is connected to ...

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Abstract

The invention relates to a universal servocontrol platform device for a motor-operating mechanism of a high-voltage switch apparatus and a control method; the device comprises an operating mechanism, a main loop and a control loop, wherein, the input terminal of a signal pretreatment circuit in the control loop is connected with a voltage mutual inductor and a current mutual inductor, for measuring the voltage and the current of a power network. The control method for the device comprises the step of calculating optimal contact speed via values of the voltage and the current acquired by the power network to control the operation of the contact. The invention has the advantage that the values of the voltage and the current of the power network are used for calculating an optical speed curve in a DSP chip, a switch on / off speed is compared with the optical speed curve while being regulated and controlled in order to regulate the on / off speed for minimizing an impact on the switch, optimizing the speed, reducing the generation of electric arcs, decreasing mechanical abrasion, promoting the switching effect and saving electric power. Meanwhile, a variety of operating mechanisms can be replaced mutually on the inventive operating platform, thus saving the manufacturing cost, simplifying the operation and saving labor force and material resource.

Description

technical field [0001] The invention belongs to the technical field of power transmission and transformation equipment, and in particular relates to a universal servo control platform device and method for a motor operating mechanism of a high-voltage switchgear. Background technique [0002] The current high-voltage switchgear motor operating mechanism servo control device is not equipped with voltage transformers and current transformers, and cannot measure the grid voltage and current values ​​​​in real time, and does not operate according to the real-time status of the grid. The maximum current is carried out, so that the impact force of the switch is large, the contact bounces multiple times, the mechanical wear is large, the interception and the large overvoltage are generated, the switching effect is not good, and the electric energy is wasted. At the same time, the servo control device of the motor operating mechanism of the traditional high-voltage switchgear can on...

Claims

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Application Information

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IPC IPC(8): H02P27/04H02P6/00G01R31/327H01H3/26
Inventor 徐建源王晓宇林莘
Owner SHENYANG POLYTECHNIC UNIV
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