Journal of Power and Energy Engineering

Volume 5, Issue 2 (February 2017)

ISSN Print: 2327-588X   ISSN Online: 2327-5901

Google-based Impact Factor: 1.37  Citations  

Adaptive Quasi-PID Control Method for Switching Power Amplifiers

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DOI: 10.4236/jpee.2017.52003    1,529 Downloads   2,292 Views  
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ABSTRACT

Quasi-PID control method that is able to effectively inhibit the inherent tracking error of PI control method is proposed on the basis of a rounded theoretical analysis of a model of switching power amplifiers (SPAs). To avoid the harmful impacts of the circuit parameter variations and the random disturbances on quasi-PID control method, a single neuron is introduced to endow it with self-adaptability. Quasi-PID control method and the single neuron combine with each other perfectly, and their formation is named as single-neuron adaptive quasi-PID control method. Simulation and experimental results show that single-neuron adaptive quasi-PID control method can accurately track both the predictable and the unpredictable waveforms. Quantitative analysis demonstrates that the accuracy of single-neuron adaptive quasi-PID control method is comparable to that of linear power amplifiers (LPAs) and so can fulfill the requirements of some high-accuracy applications, such as protective relay test. Such accuracy is very difficult to be achieved by many modern control methods for converter controls. Compared with other modern control methods, the programming realization of single-neuron adaptive quasi-PID control method is more suitable for real-time applications and realization on low-end microprocessors for its simple structure and lower computational complexity.

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Sun, X. (2017) Adaptive Quasi-PID Control Method for Switching Power Amplifiers. Journal of Power and Energy Engineering, 5, 19-44. doi: 10.4236/jpee.2017.52003.

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