Circuit breaker energy storage motor protection and control system and method

A technology for energy storage motors and control systems, applied in emergency protection circuit devices, electrical components, etc., can solve problems such as single control strategy, high instantaneous load pressure of motors, affecting the service life and safety performance of energy storage motors and operating mechanisms, etc. To achieve the effect of improving service life and ensuring safe operation

Pending Publication Date: 2022-01-11
ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, the control of energy storage motors is generally directly completed by a primary operating mechanism, the control strategy is single, the instantaneous load pressure of the motor is large, and the necessary state

Method used

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  • Circuit breaker energy storage motor protection and control system and method
  • Circuit breaker energy storage motor protection and control system and method
  • Circuit breaker energy storage motor protection and control system and method

Examples

Experimental program
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Example Embodiment

[0027] Example 1

[0028] Append figure 1 A circuit breaker reservoir motor protection and control system, including the energy storage motor current acquisition module, two overcurrent protection modules, motor timeout protection modules, motor start and stop control modules, and monitoring data collection modules Total 5 Component.

[0029] The energy storage motor current collecting module is used to collect and calculate three-phase reserved motor current to rearward module calls. The energy storage motor current collecting module includes a Hall current sensor, a sample processing board, and a software calculation processing unit, and the Hall current sensor is worn with an indentation of the energy control circuit, and is 24V DC power supplied by the control cabinet. Power supply; when the energy is operated, the sensor delivers the collected three-phase reserved motor current to the sampling process board by the Hall effect through the serial line, sampling the processing b...

Example Embodiment

[0038] Example 2

[0039] This embodiment provides a circuit breaker reservoir motor protection and control method, which collects three-phase reserved motor current, and configurable 3 Fixed-constant openings to realize the start-stop control of the energy storage motor, through two segments overcurrent protection and motor Overseas protection real-time monitoring and controlling the motor operation process, once discovers discovering an abnormality, the motor power supply circuit is discovered, and the saving motor is safe, and the collected energy storage motor current information is sent to the substation monitoring background through the fiber network.

[0040] The 3 付 常 开 点 分 接 三 回 回 作 作 作 作 作 的 的 的 的 的 作 的 的 的 的 的 作 的 的 作 的 的 的 作 作 的The normally open contact is connected in series to the power supply loop of the three-phase power motor to control the start and stop of the energy storage motor.

[0041] After the 3 qi open point is closed, the three-phase coil of the AC powe...

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PUM

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Abstract

The invention discloses a circuit breaker energy storage motor protection and control system and method. In order to solve risks and problems existing in operation control of an energy storage motor in an existing circuit breaker operating mechanism, the system comprises an energy storage motor current acquisition module, a two-section over-current protection module, a motor overtime protection module, a motor start-stop control module and a monitoring data collection and uploading module. The current of the energy storage motor is acquired and analyzed, real-time fault monitoring is performed on the operation process of the motor, if overcurrent or overtime faults of the motor exist, sudden stop and locking of the energy storage motor are realized through contact control, and monitoring information is uploaded to a monitoring background of a transformer substation, so that the operation safety of the energy storage motor is ensured; and the service life of the energy storage motor is prolonged.

Description

technical field [0001] The invention relates to the field of energy storage motor control, in particular to a circuit breaker energy storage motor protection and control system and method. Background technique [0002] The spring operating mechanism is the most common application in high-voltage circuit breakers. Its components include springs, energy storage systems, ratchets, operating mechanisms and connecting rods. The main principle is to start the energy storage motor after the circuit breaker closing action is completed. To drive and stretch the spring to store energy for the next opening and closing action. At this stage, the control of energy storage motors is generally directly completed by a primary operating mechanism, the control strategy is single, the instantaneous load pressure of the motor is large, and the necessary state monitoring, fault judgment and protection control mechanism are lacking during the motor startup period, which will directly affect the e...

Claims

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Application Information

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IPC IPC(8): H02H7/08
CPCH02H7/08
Inventor 戚宣威黄晓明王松徐华钱建国方愉冬潘武略吴佳毅钱平方芳孙文文陈明曹文斌钱政旭韩松杰秦贵峰
Owner ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY
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