Title :
Research on the PWM Waveform Compensation Algorism
Author :
Nianqiang, Li ; Lu, Zhang ; Changzhi, Wei
Author_Institution :
Jinan Univ., Jinan
Abstract :
In this paper, dynamic PWM waveform compensation algorithm is introduced in detail. The PWM waveform is generated with FPGA (field programmable gate array). The hardware is based on the Altera´s FPGA-Cyclone-II EP2C8 and its configuration device-EPC2LC20. The software is developed under the Altera´s development environment qartusII 6.0 and NIOS II CPU in FPGA. In this paper,PID algorithm is adopted. Simulation and experiments validate the system. The THD of the output voltage drops from 2.0% to 5%o . During the adding and removal of the load, the rate of output signal fluctuation is less than 0.5% and the adjusted time is less than 2 ms.high-power supply,
Keywords :
field programmable gate arrays; pulse width modulation; signal processing equipment; waveform generators; Altera Cyclone-II EP2C8; EPC2LC20 configuration device; FPGA; NIOS II; PID algorithm; PWM waveform compensation; QartusII 6.0; field programmable gate array; Central Processing Unit; Circuits; Communication system control; Feedback; Field programmable gate arrays; Hardware; Instruments; Insulated gate bipolar transistors; Power generation; Pulse width modulation; NIOS II FPGA-based Dynamic Waveform compensation; PID algorism; PWM wave; Realtime adjusting; digital power supply;
Conference_Titel :
Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-1136-8
Electronic_ISBN :
978-1-4244-1136-8
DOI :
10.1109/ICEMI.2007.4350856
