DC-DC converter series resonant nonlinear optimal control using GBM and firefly algorithm

摘要

Regulating the output voltage of DC-to-DC series resonant converters are essential problems in power electronics as well as other tips of resonant converters due to the nature of soft switching which is due to switching in zero-voltage or zero-n-current, compared with hard switching converters, have significantly lowered power losses and can also operate at much higher switching frequencies. But resonant converters are more complex to be controlled on account of their highly nonlinear dynamics, so study on new methods for controlling these converters has become very important. For this purpose in this paper, a generalized backstepping method is recommended to control the SRC converter. The algorithm parameters are variable only if they are positive coefficients. This can be done using algorithms to optimize choice. At this thesis Firefly algorithm is recommended. Finally, simulations in MATLAB prove suitability of the proposed method.