Signal detection device, magnetic suspension system and signal detection method thereof
A signal detection and magnetic levitation technology, applied in the field of magnetic levitation, can solve the problems of limited sampling channels and inability to meet the collection of magnetic levitation systems, and achieve the effect of saving sampling channels
Pending Publication Date: 2021-09-03
GREE ELECTRIC APPLIANCES INC
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[0006] The object of the present invention is to provide a signal detection device, a magnetic levitation system and a signal detection method thereof, so as to solve the problem that each sampling signal of the magnetic levitation system needs to use one sampling channel separately, and the internal sampling channel of the control chip is limited, which cannot meet the requirements of the magnetic levitation system. The problem of collecting various parameters in the running state of the control chip can be achieved by using an internal sampling channel of the control chip to mix and sample multiple sampling signals and then separate them, so that the maglev system can be realized when the internal sampling channel of the control chip is limited. The effect of the acquisition of each parameter in the running state
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[0035]In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0036] figure 1 It is a structural schematic diagram of an embodiment of the dual-loop control system of the magnetic suspension bearing. Such as figure 1 As shown, the double-loop control system of the magnetic suspension bearing includes: a first comparator, a position controller, a second comparator, a current controller, a power amplifier, an electromagnet, a...
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The invention discloses a signal detection device, a magnetic suspension system and a signal detection method thereof, and the device comprises: each sampling module in N sampling modules which is configured to carry out the sampling of one path of signal in N paths of signals to be sampled, and obtains a sampling signal of the path of signal; a mixing unit which is configured to mix the sampling signals of the N paths of signals to obtain a path of mixed sampling signal; and a control chip which is configured to receive one path of mixed sampling signal through one path of sampling channel of the control chip and process the one path of mixed sampling signal so as to extract sampling signals of N paths of signals from the one path of mixed sampling signal. According to the scheme, the internal sampling channel of the control chip is utilized to perform mixed sampling on multiple paths of sampling signals and then separate the sampling signals, so that the acquisition of each parameter in the operation state of the magnetic suspension system can be realized under the condition that the internal sampling channel of the control chip is limited.
Description
technical field [0001] The invention belongs to the technical field of magnetic levitation, and in particular relates to a displacement detection device, a magnetic levitation system and a displacement detection method thereof, in particular to a displacement detection device of a magnetic levitation system, a magnetic levitation system with the displacement detection device, and a displacement detection of the magnetic levitation system method. Background technique [0002] Magnetic levitation technology (electromagnetic levitation, electromagnetic suspension, referred to as EML or EMS) refers to a technology that uses magnetic force to overcome gravity to levitate objects. The system of magnetic levitation technology, that is, the magnetic levitation system, is composed of four parts: rotor, sensor, controller and actuator. The actuator includes two parts: electromagnet and power amplifier. Assuming that at the reference position, the rotor is subjected to a downward dist...
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IPC IPC(8): G05B19/042G01B7/02
CPCG05B19/0423G01B7/02G05B2219/25257
Inventor 郭伟林郑安琪孙建东林润方
Owner GREE ELECTRIC APPLIANCES INC