DPS based intellectual high speed magnetic suspension control and analog power amplifying device
A magnetic levitation and amplifying device technology, which is applied in the direction of holding devices using magnetic attraction or thrust, amplifiers with semiconductor devices/discharge tubes, amplifiers, etc., can solve the problems of unsatisfactory requirements, low resource utilization, and difficulty in industrialization development, etc. question
Inactive Publication Date: 2009-07-08
WUHAN UNIV OF TECH
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Problems solved by technology
However, due to the increase of acquisition and processing traffic in high-speed acquisition, this solution cannot meet the requirements because it uses a 16-bit ISA bus.
With the continuous improvement and perfection of control technology and control precision, dynamic real-time control and monitoring of the magnetic levitation system is required, but the current solution cannot meet the high-speed, extremely high-precision and complex control. In addition, the overall cost of the voltage acquisition card and industrial computer is too high. The volume is large, and the overall resource utilization rate is relatively low, so it is not easy to achieve industrial development
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[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but these embodiments should not be construed as limiting the present invention.
[0017] Hardware module of the present invention ( figure 1 ) is mainly composed of: 9-way high-speed position voltage conversion module, DSP signal sampling and processing module, system protection and voltage stabilization module, CAN bus communication module, upper computer communication module and other parts. The DSP processing chip adopted in the present invention is a special signal processing module of TMS320F2812 or TMS320C2407 of Ti Company of the United States. First, the 9-way eddy current position sensor transmits the position of the maglev to the DSP system through the 9-way high-speed position voltage conversion module. (convert sensor 5v signal to 3.3v DSP can collect voltage, and carry on analog filter to voltage signal). Then the DSP signal acquisition an...
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The invention relates to a DSP-based intelligent high-speed magnetic suspension control and analog power amplifier device, which is composed of a DSP (digital signal processor) and peripheral circuits. The DSP receives the signal of an eddy current position sensor through an input data line, and the DSP output signal passes through a D / A The (analog / digital) conversion circuit is connected with the constant current switching power amplifier, the control signal output by the constant current switching power amplifier is connected with the magnetic levitation mechanical actuator, and there is also a connection between the DSP and the D / A conversion circuit. CPLD (Programmable Logic Device), DSP and CPLD use CAN (Control Local Area Network) bus to communicate. The present invention adopts DSP as the main control device, so that the present invention has the characteristics of fast response, high control precision, good stability and the like. The invention adopts a high-frequency transformer of a PWM (pulse width modulation) power amplifier or a photoelectric isolator to realize power grid isolation, and can save heavy power frequency transformers.
Description
technical field [0001] The invention belongs to a high-speed magnetic levitation control device, in particular to a DSP-based intelligent high-speed magnetic levitation control and analog power amplifier device. Background technique [0002] At present, based on the high-speed magnetic levitation control device, the scheme of "voltage acquisition card + industrial computer" is basically adopted, that is, the ready-made voltage acquisition board is inserted into the industrial computer. This method has the advantages of good stability and strong versatility. However, due to the increase of collection and processing traffic in high-speed collection, this solution cannot meet the requirements because it uses a 16-bit ISA bus. With the continuous improvement and perfection of control technology and control precision, dynamic real-time control and monitoring of the magnetic levitation system is required, but the current solution cannot meet the high-speed, extremely high-precisi...
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IPC IPC(8): H02N15/00H03F3/00
Inventor 周祖德刘泉钟毅胡业发薛立功
Owner WUHAN UNIV OF TECH