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Li H.,University of Pan Zhihua | Zhang X.,University of Sichuan | Pang L.,University of Sichuan | Deng G.,Chongqing University
2011 International Conference on Computer Science and Service System, CSSS 2011 - Proceedings

The Fuzzy-PID temperature control system based on DSP technology and single chip AT89C52 was designed and applied in Panzhihua Iron and Steel Co. It turns out through this system high-speed and multi-point sampling, large quantity accumulation and real-time calculation are carried out with small mean temperature difference. At the same time, the problem that the temperature stability of the roaster was badly affected by gas flow, atmosphere flow, spent acid and exhausted stream pressure is solved successfully with this system. © 2011 IEEE. Source

Huirong L.,University of Pan Zhihua | Xuefeng Z.,University of Pan Zhihua | Lijuan P.,University of Pan Zhihua | Yanwei T.,Chongqing University
Proceedings - 4th International Conference on Intelligent Computation Technology and Automation, ICICTA 2011

The temperature control system based on FPGA and Fuzzy-PID technology was used for the temperature control of the regeneration roaster of cold rolling Plant of Panzhihua Iron and Steel, compared with the single Fuzzy or PID control mode. The results show that Fuzzy control was used to adjust for a rapid response in a large error and PID control was used for adjustment of the details in a small error and realized the adaptive tuning of the PID parameters and had a good dynamic and static control performance. It worked well with the minimum average temperature difference, and could inhibit the gas flow, air volume and the amount of waste acid, waste gas pressure and other factors on the stability of furnace temperature. © 2011 IEEE. Source

Li H.R.,University of Pan Zhihua | Pang L.J.,University of Pan Zhihua | Zhang X.F.,University of Pan Zhihua | Deng G.,University of Pan Zhihua | Tong Y.W.,Chongqing University
Advanced Materials Research

According to the demand of data acquisition in power system, the intelligent wattmeter is constructed, which is based on DSP and FPGA as the data acquisition and processing system, meanwhile, the administration center of the intelligent wattmeter is based on single-chip computer 8051. With these, high speed, multi-point sampling, a large quantity accumulation and real-time calculation are realized. At the same time it reduces the effect of the measuring accuracy upon higher harmonic and the measuring accuracy could reach to 0.02 grade. © (2011) Trans Tech Publications. Source

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