Control method for servo speed-regulation system with load acceleration feedback

A technology of speed regulation system and control method, which is applied in the field of artillery follow-up system, can solve the problems of shooting impact moment lag, etc., and achieve the effect of improving performance
CN107612445AActive Publication Date: 2018-01-19西北机电工程研究所
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
西北机电工程研究所
Publication Date
2018-01-19

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Abstract

The invention provides a control method for a servo speed-regulation system with load acceleration feedback. First, motor angular speed feedback is extracted for speed ring calculation to obtain an angular accelerated speed instruction; then angular accelerated speed of a load is extracted, the angular rate of an orientation gyroscope is collected, and a current loop controlled quantity is calculated by the utilization of angular accelerated speed feedback; a current loop controlled quantity is calculated according to MTPA; line current is collected to calculate alternate and direct shaft current of a PMSM under dq coordinates; finally, a dq shaft voltage controlled quantity serves as input of park conversion of the PMSM to complete control over the motor. With the control method, influences on tracking precision of shooting impact force borne by a gun servo load tail end can be effectively restrained, positive effects on solving of the problem of structural resonance between a transmission system and the load in the gun servo system and a tooth space non-linear problem in a transmission chain are achieved, and then the performance of the gun servo system is improved.
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Description

technical field

[0001] The invention belongs to the field of artillery follow-up systems, and mainly relates to a follow-up drive speed regulation system requiring precise tracking, a transmission mechanism, a load of the follow-up system and a control method under the interference of strong impact torque. Background technique

[0002] Due to the fast response of the anti-aircraft gun servo system, the equivalent closed-loop method is generally adopted to avoid the stability of the position closed-loop control of the servo system affected by the backlash of the transmission system. The equivalent closed loop means that the motor drives the load to rotate through the power transmission chain, and there is also a measurement chain with the same reduction ratio as the power transmission chain. . After all, the stiffness of the power output shaft cannot be infinite, and its elasticity sometimes causes system structural resonance, which will affect the stability of the system. ...

Claims

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