| Switched reluctance motor speed control system (Switched Reluctance Drive, referred to as SRD) is the potential development of new AC drive system. It combines the switched reluctance motor (Switched Reluctance Motor, referred to as SRM), modern power electronics technology and control technology as a whole, not only to maintain the structure of the AC induction motor is simple, rugged and reliable, and DC motor control and good benefits, but also has low price, high efficiency, adaptability, etc., show a wide application prospect. Of course, the switched reluctance motor drive system, there are many issues to be resolved, mainly due to torque ripple and noisy. Only from the overall performance speed control system, through an SRD on the proper design and use of optimized control theory, in order to gradually solve these problems.Focus of this paper is on the valve actuator design and development, in particular:1switch design is based on the phrase new electric motor drive actuator, the actuator’s drive to improve power control performance, improve the reliability of the actuator.2. Step of switched reluctance motor drive control theory, the use of switched reluctance motor torque vector control theory, micro-step control, improve actuator positioning accuracy, effectively reduce the torque ripple, to overcome the system noise, increase power actuator control performance, and the actuator using MATLAB simulation and analysis to determine the best technical parameters of the system.3. Switching characteristics of IGBT, DSP digital control performance and position control of SRD performance, to establish a target actuator position control for the discrete control model.4. Research based on micro-step power control step, all-digital DSP-based incremental motion control systems, direct-drive control technology. |
