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Switch mode power converters otter an efficient solution for driving high-brightness LEDs in an enormous range of applications. These driving converters usually rely on analog control techniques to ensure the optimal flow of current through the LEDs and provide dimming features. However, due to their inflexibility and non-configurability analog control schemes are not a good option especially in high...
Controllers are designed to regulate output voltage and improve dynamic performance of dc–dc converter to variable supply voltage, load current or circuit element variation. Conventional controller like PID has narrow dynamics that limit its application to quiescent supply input voltage and load current change. Recent research efforts are exploiting state of the art power electronics devices and high...
This paper presents design and Simulink implementation of zero voltage switching (ZVS) phase-shifted full bridge dc-dc converter. The phase-shifted full bridge PWM dc-dc converter is widely used in high power, high voltage applications due to the advantages of high power handling capability with low switching and conduction losses. The phase shift feature of the control signal allows ZVS thereby eliminating...
This paper presents comparative studies of PID controller tuning methods on a DC-DC converter. A DC-DC boost converter was modelled using averaged state space method for controller design and dynamic analysis. PID controllers were designed using three different PID tuning methods; namely the Ziegler-Nichols frequency domain method, damped oscillation method and Good Gain method. The Matlab/Simulink...
The efficiency of commercially available solar PV module is very low in the range of 10–25 % In order to maximise their operating efficiency and to reduce installation cost, maximum power point trackers (MPPT) are coupled with the system. The output power of solar PV depends on solar irradiance level, incident angle, temperature and load current which all contribute to non-linear varying I-V characteristic...
Solar energy is considered as fastest growing renewable energy source after wind energy for electricity generation. Solar energy is a free, clean abundant sun energy considered as inexhaustible source for electricity generation. Solar photovoltaic system is characterised with variable output power due to its operation dependency on solar irradiance and cell temperature. To maximize the energy generation...
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