Monostable permanent magnet mechanism single coil switching on/off speed adaptive control method
A technology of self-adaptive control and permanent magnet mechanism, which is applied to the power device inside the switch and other directions, can solve problems such as closing and opening faults, achieve high reliability, optimize the rigid opening and closing characteristics, and achieve simple effects
Inactive Publication Date: 2011-04-20
SHENZHEN JINBOLIAN ELECTRIC POWER TECH
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Problems solved by technology
The capacitor voltage is fixed, and the closing and opening speed is single, which is not optimized according to the electrical and mechanical performance requirements when breaking; and with the change of ambient temperature and the aging of the switch, closing and opening faults may occur
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[0015] Such as Figure 1 to Figure 4 As shown, a monostable permanent magnet mechanism controller includes a power conversion module, a capacitor charge and discharge management module, a permanent magnet drive circuit module, a switch state monitoring module, a temperature monitoring module, a communication interface module and an AVR single-chip microcomputer module. For the schematic block diagram of the permanent magnet mechanism controller, see the attached figure 1 .
[0016] Among them: the power conversion module converts the input AC or DC (solar power supply) into DC 12V to provide system power. The capacitor charge and discharge management module controls the excitation capacitor voltage according to the instructions of the processor. The permanent magnet drive circuit module drives the coil to perform corresponding actions according to the opening and closing instructions of the processor. The switch state monitoring module judges the state and position of the s...
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The invention discloses a monostable permanent magnet mechanism single coil switching on / off speed adaptive control method. In the method, a power supply conversion module converts input alternating current or direct current into direct current of 12 volts to provide a power supply of a system; a capacitor charge and discharge management module controls excitation capacitor voltage according to acommand of a processor; a permanent magnet driving circuit module drives a coil to execute the corresponding action according to a switching on / off command of the processor; a switch state monitoringmodule judges the state and the position of a switch and provides action feedback and warning; a temperature monitoring module detects the temperature of the current environment and provides a decision basis for the processor; a communication interface module is used for receiving an external command or transmitting data of the communication interface module; and an automatic voltage regulation (AVR) singlechip module synthesizes various criterions to provide a correct action command according to the external command or the current failure state. The method is easy to implement and has high reliability.
Description
technical field [0001] The invention belongs to the application field of power electronics, and in particular relates to a single-coil closing and opening speed adaptive control method of a monostable permanent magnet mechanism. Background technique [0002] The permanent magnet mechanism adopts a new working principle, organically combining the electromagnetic mechanism and the permanent magnet, avoiding the unfavorable factors caused by the mechanical tripping and locking system at the opening and closing position, and the holding force generated by the permanent magnet without any mechanical energy The vacuum switch can be kept in the opening and closing position. Its opening and closing time is stable, the deviation is small, and the reliability is high, and it has been widely used in the field of medium voltage. [0003] The characteristics of the monostable permanent magnet mechanism are: there is an opening spring in the mechanism, and a single coil structure is adop...
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Inventor 王建强
Owner SHENZHEN JINBOLIAN ELECTRIC POWER TECH