A motor automatic control device and control method
A technology of power distribution control and action control, applied in motor control, emergency protection circuit devices, control systems, etc., can solve problems such as the impact of motor life and failure of high-power motors to start, so as to ensure safe operation and ensure successful startup and operation. Effect
Active Publication Date: 2020-04-17
HUBEI JIANGSHAN HEAVY IND
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Problems solved by technology
[0003] The purpose of the present invention is to provide an automatic motor control device and control method to solve the problem that high-power motors cannot be started or have an impact on the life of the motor under different temperature and load conditions
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[0016] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] Such as figure 1 As shown, the present invention provides an automatic motor control device, including a power distribution control module, a safety interlock module and an intelligent power module;
[0018] The power distribution control module is used to monitor the system temperature and the output voltage and current of the intelligent power module, and control the switch status of the intelligent power module according to the real-time status: when the voltage and current of the intelligent power module collected by the power distribution control module are within When a certain temperature exceeds the set fault value and exceeds the allowable time, the power distribution control module can create a fault f...
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The invention discloses an automatic control device and control method of a motor. The automatic control device comprises a power distribution control module, a safety interlocking module and an intelligent power module, wherein the power distribution control module is used for collecting operating voltage, current and temperature in real time and giving a fault sign signal under a specific condition; the safety interlocking module is used for judging whether power is logically output or not and controlling a hydraulic valve bank to act according to the fault sign signal; and the intelligent power module is used for achieving on-off control on a power supply of the motor. Protective current can be adjusted in real time according to a numerical value collected by a temperature sensor; and the current is monitored in real time and an alarm scheme is timely given in the working process. Therefore, the equipment reliability can be greatly improved.
Description
technical field [0001] The invention belongs to the technical field of electrical control, and in particular relates to an automatic control device and a control method for a motor, in particular to an automatic control device and a control method for a high-power motor under wide temperature and variable load conditions. Background technique [0002] The current high-power (motor power greater than 10kw) motor starts, because there is the largest speed difference, the starting current is very large, and the method of step-down startup is used. In the system, the method of adjusting the duty cycle within the startup time is used to realize step-down startup. process; taking into account the protection purpose of the motor operation, it is necessary to monitor the motor voltage and current values in real time during the start-up process and the motor operation process to protect the safe operation of the motor equipment; due to the different load torques at different tempera...
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IPC IPC(8): H02P29/00H02H7/08
CPCH02H7/08H02P29/00
Inventor 张建新张金萍李锴陈四春方安国邢秀敏王锐袁作利景果张震
Owner HUBEI JIANGSHAN HEAVY IND