Flexible action control method and circuit for AC magnetic actuator
A technology of motion control and switch control circuit, which is applied in the direction of control system, control electromechanical brake, asynchronous induction clutch/brake, etc. It can solve the problems of high heat generation and reduced service life of AC magnetic actuator, and achieve convenient operation and maintenance , Reduce working temperature rise, quick response effect
Pending Publication Date: 2019-04-16
绍兴和欣控制科技有限公司
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Problems solved by technology
[0006] One of the purposes of the present invention is to provide a flexible action control method for AC magnetic actuators to solve the problem of reduced service life of AC magnetic actuators due to high heat generation during use
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Embodiment Construction
[0031] The specific implementation of the present invention will be described below taking the AC electromagnetic brake as the adjusted object.
[0032] Such as figure 1 As shown, the flexible action control circuit of the present invention includes a voltage sampling circuit 3, a switch control circuit 4, a DC power supply 2, a first AC electronic switch 5, and a second AC electronic switch 6, and the brake electromagnet 7 in the AC electromagnetic brake As the object to be adjusted and controlled, AC power input 1 is an AC power supply.
[0033] in figure 2 In the shown control principle diagram of the flexible action control circuit of the present invention, the dashed frame represents the equivalent circuit of the AC electromagnet in the AC electromagnetic brake. It is composed of an inductor L d With a resistor R d The equivalent circuit formed by series connection. The switch in the figure represents the AC electronic switch K. It includes contact A and contact B. Electric...
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The invention relates to a flexible action control method and circuit for an AC magnetic actuator. The method comprises the following steps: connecting a first AC electronic switch and a second AC electronic switch in a working loop connected with the AC magnetic actuator, wherein the first AC electronic switch and the second AC electronic switch are respectively connected with a switch control circuit, and the switch control circuit controls the first AC electronic switch and the second AC electronic switch to implement alternating on-off conversion, so as to achieve the pulse width modulation on an input AC voltage applied to the AC magnetic actuator and achieve the aim of adjusting the actual working voltage on the AC magnetic actuator and then adjusting the working current of the alternating-current magnetic actuator is achieved, and therefore continuous adjustment is conducted on the electromagnetic force output by an alternating-current electromagnet in the alternating-current magnetic actuator so that the flexible action of the AC magnetic actuator. The method can achieve the implementation of the flexible action control of the AC magnetic actuators, such as an AC brake andan AC contactor, so as to reduce the power loss of the alternating current magnetic actuators, reduce the temperature rise, improve the performance, and prolong the service life.
Description
Technical field [0001] The invention relates to a control method of an AC magnetic actuator, in particular to a flexible action control method and a control circuit of the AC magnetic actuator. Background technique [0002] The AC magnetic actuator of the present invention refers to a magnetic actuating device that works with AC power, including products such as AC electromagnetic brakes, AC contactors, and AC circuit breakers. At present, these products are generally directly connected to the AC grid, and the AC magnetic actuator is controlled on or off by the on and off of the power switch. [0003] Among them, the AC electromagnetic brake is an electromagnetic braking device in which the brake spring and the brake push rod are used as the upper brake mechanism, and the AC electromagnet is used as the brake opening mechanism. The advantage of AC electromagnet is that it has fast action response speed, and it is especially suitable for use as a working part in the brake; but its ...
Claims
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IPC IPC(8): H02P15/00H02K49/02
CPCH02K49/02H02P15/00
Inventor 李旭春张桂竹韩伍林侯增敏韩正方
Owner 绍兴和欣控制科技有限公司