"基于TMS320F2812的异步电机直接转矩控制系统设计与实现"

Based on TMS320F2812, a direct torque control system design for asynchronous motors was successfully developed. The paper first introduces the theoretical basis of direct torque control for asynchronous motors, discussing concepts such as magnetic flux, torque, and voltage space vectors. The hardware circuitry includes the main circuit, inverter circuit, and control circuit. The main circuit consists of rectification and filtering circuits, while the inverter circuit utilizes the PMZOCTM060 intelligent power device for the required inversion functions. The control circuit primarily uses the TMS320F2812 as the core controller, along with current, voltage signal sampling circuits, and speed detection circuits. The software design was implemented on the CCS software platform, utilizing a mix of C language and assembly language programming. Through the study of the system, it was found that the hardware platform employing this direct torque control strategy exhibits strong anti-interference ability, excellent current and voltage protection measures, compact size, strong software portability, and is suitable for applications in motor control and other fields. Key words: direct torque; DSP; asynchronous motor; TMS320F2812.