Quasi-sensorless position servo control device and method for permanent magnet synchronous motor
A technology of permanent magnet synchronous motor and servo control device, which is applied in the direction of motor generator control, AC motor control, control of electromechanical transmission, etc., and can solve the problems of high control cost and inappropriateness
Active Publication Date: 2017-04-05
ZHEJIANG SCI-TECH UNIV
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Problems solved by technology
For this reason, the servo system used in some point movement occasions needs sensorless control technology on the basis of improving position response performance, such as patent document 1 (patent number 200910090386.9) and patent document 2 (patent number 200510108039.6) proposed An AC servo driver that does not need a current sensor can realize the closed-loop vector control of the speed of the hidden pole permanent magnet synchronous motor without a current sensor, which reduces the hardware cost of the speed control system, but patent documents 1 and 2 retain the position detection unit, The total control cost is still high, and it is not suitable for some textile applications with high cost requirements
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Embodiment 1
[0081] Embodiment 1, figure 2 A quasi-sensorless position servo control device for permanent magnet synchronous motor is given; it includes PI regulator 3, IPark transformation module 4, space vector modulation module 5, three-phase inverter 6, permanent magnet synchronous motor 12, HALL15, quasi a sensorless control module 14, a third subtractor, a fourth subtractor, a fifth subtractor and a position / speed integrated controller 13; HALL is a HALL sensor;
[0082] The HALL15 is arranged on the body of the permanent magnet synchronous motor 12. When the motor shaft of the permanent magnet synchronous motor 12 rotates, a discrete HALL position signal is output through the HALL15 Quasi-sensorless control module 14 accepts discrete HALL position signals q-axis voltage given u q and d-axis voltage given u d ;Discrete HALL position signal q-axis voltage given u q and d-axis voltage given u d After calculation by the quasi-sensorless control module 14, the actual rotor posi...
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The invention discloses a quasi-sensorless position servo controlling device for a permanent magnet synchronous motor and a method thereof. The quasi-sensorless position servo controlling device comprises a permanent magnet synchronous motor which is provided with a HALL sensor, etc. The HALL sensor is connected with a quasi-sensorless controlling module. The quasi-sensorless controlling module is connected with a fifth subtractor, a position / speed integrated controller, a third substractor, a fourth substractor, a PI regulator and an IPark conversion module respectively. The fifth substractor is connected with the position / speed integrated controller. The position / speed integrated controller is connected with the third substractor. The PI regulator is connected with the third substractor, the fourth substractor and the IPark conversion module respectively. The IPark conversion module is connected with a space vector modulation module. The space vector modulation module is connected with a three-phase inverter. The three-phase inverter is connected with the permanent magnet synchronous motor.
Description
technical field [0001] The invention relates to the electromechanical integration technology of textile machinery, in particular to a quasi-sensorless position servo control device and method of a permanent magnet synchronous motor suitable for point-to-point motion of textile machinery. Background technique [0002] With the continuous requirements of energy saving, high efficiency, high speed and high precision in the textile industry, the permanent magnet AC servo system has its own high power factor, high efficiency, high dynamic response, high reliability, high overload capacity and high The application of output torque and other advantages in textile machinery has become a trend. It is one of the core technologies for mass application in the future, and the market prospect is very broad. However, some textile machinery has some special working conditions: for example, when the warp knitting machine is running, it is necessary to drive the bar to complete the yarn layin...
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IPC IPC(8): H02P21/18H02P21/13H02P21/24H02P25/02
Inventor 鲁文其胡旭东史伟民邓雄飞
Owner ZHEJIANG SCI-TECH UNIV