LD temperature control system based on self-tuning fuzzy PID algorithm

被引：0
|
作者：
机构：
[1] Dai, Junke
[2] Jiang, Haiming
[3] Zhong, Qirun
[4] Xie, Kang
[5] Cao, Wenfeng
来源：
Dai, Junke | 1600年 / Chinese Society of Astronautics卷 / 43期
关键词：
Adjust PID parameters - Dynamic performance - Manual operations - MSP430 - Msp430 microcontrollers - Negative feedback loop - Self-tuning fuzzy PID - Thermoelectric cooler;
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摘要：
In order to make a laser diode (LD) work stably, a highly efficient temperature control system was designed and implemented. The system was made up of the MSP430 microcontroller, negative temperature coefficient thermistor(NTC) and thermoelectric cooler (TEC), respectively, as control unit, temperature sensor and actuation element. Based on the self-tuning fuzzy PID algorithm, the negative feedback loop was adopted for controlling the temperature of a laser diode and enabling it to work stably. Experimental results show that the system stabilized the temperature within 25±0.05℃ in 68 seconds when it rose from 21.9℃ to 25℃. After 94 seconds, the temperature can stay within 25±0.008℃. Compared with a conventional PID control system, the temperature control system based on self-tuning fuzzy PID algorithm can adaptively adjust PID parameters in the system without manual operation. Therefore, the system has a better dynamic performance. ©, 2014, Chinese Society of Astronautics. All right reserved.
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