基于LPCI752的免调试电梯门机控制系统

针对目前电梯门机调试复杂、维护成本高、安全隐患多等问题，通过使用带有电机控制脉宽调制（PWM）模块和正交编码器接口的Cortex—M3处理器LPCI752、三菱智能功率模块（IPM）、高精度旋转编码器和普通三相异步调频电机，搭建了电梯门机控制系统硬件平台；基于通过大量实验构建的专家数据库，设计了软件控制系统。该系统实时获取电机的位置、速度、电流等运行参数，并将之与专家数据库中对应参数进行了比对，为增量式PID调节提供依据，实现了门机门宽自学习与运行过程状态改变自适应。研究结果表明，该系统无需预先进行参数设置即可直接加电，实现电梯门机的快速、平稳运行。

Design of an LPC1752-based adjustment-free elevator door motor control system

Aiming at the complicated adjustment, high maintenance cost and safety problems of elevator door motor, an adjustment-free elevator door motor control system was designed, which consists of a hardware platform using a Cortex-M3 processor LPC1752 with a motor-controlled pulse width modulation （PWM） module and a quadrature encoder interface （QEI）, a Mitsubishi intelligent power module （IPM） module, a high accuracy rotary encoder and a general three-phase asynchronous electric motor with frequency modulation and a software control system based on an expert database built out of a variety of experiments. An accurate comparison was automatically made between the parameter values of position, speed and current and the expert database to help the incremental PID tuning, thus self- learning of door width and self-adjustment of running status can be realized. The results indicate that the system can be powered to bring the elevator door into quick operation and smooth running without presetting corresponding parameter values.