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The objective of this work is to design a closed loop class F3 amplifier system that provides a steady output voltage. By using an uncontrolled rectifier, the regular alternating current (AC) gets converted into direct current (DC). The Class F3 based amplifier system used to convert it back to DC. PI and Fuzzy Logic controllers are suggested to sustain the stable values of voltage at the final output...
Sliding mode control technique is one of the best methods to regulate the output voltage of a DC — DC converter. The conventional first order sliding mode controller regulates the output voltage to the desired value but is effected by chattering. Chattering can be reduced by generating continuous version of the discontinuous control signal in the boundary layer sliding mode controller but this method...
This work is mainly dedicated to implementation of bidirectional DC-DC converter for DC storage systems in medium power Microgrid applications. Microgrids are gaining immense popularity in present day scenario due to availability of flexible power management strategies and cost effectiveness. DC Microgrid mainly consists of PV system and Battery system. Battery system plays very important role in...
Switch mode Converters are inherent part of modern gadgets, motor drives and power control. To regulate the output voltage, an efficient control is necessary. Digital control is preferred over analog control since it has advantages like low power consumption, less variation to noise, less component variation and programmability. There are various platforms available for control like Microcontroller,...
In this paper a modified Zeta converter is proposed with replacement of conventional PI controller with fuzzy control for robust and reduced output stabilization time. The Zeta converter is one of the best PFC converters with very less DC voltage output ripple. The input is fed with a single phase AC source with maintained power factor at unity during the conversion process. The performance and analysis...
The Z-source concept has many advantages it can be applied for any type of power conditioning system this paper propose a Z-source based three level inverter system for the photo-voltaic array or system. A comparison of traditional system and new Z source three level inverter configuration is performed. In this paper present the SPWM technique for controlling the neutral clamped three level inverter...
In this paper design and application of bidirectional push pull converter in Microgrid Systems has been discussed. A push-pull converter is suitable for boost applications, because the step up ratio of high frequency transformer is high. It is possible to use Push pull converter for achieving higher voltages on input side of inverter. The proposed push pull converter is designed to operate in Bidirectional...
The integration of Solar Photovoltaic (SPV) power generation system with the grid by using Enhanced Phase Locked Loop (EPLL) scheme based indirect control. The developed control scheme for synchronizing the SPV system with utility grid improves the power factor of the source and voltage profile at the point of common coupling (PCC). The proposed controller maintain the voltage profile at PCC through...
This paper focus on specially designed DG based Power Quality Conditioner for Micro Grid applications. Three leg inverter coupled with solar PV with MPPT used as Compensator can be used for distinct DGs in the micro grid for power quality improvement of the entire system. Optimum control can be achieved to avoid detraction for voltage, current and Power flowing between Grid and DG. By adjusting power...
Back to back (B2B) voltage source converter is used for HVDC system and ac drive system to control active-reactive power. In this paper reduced switch back to back converter is used for induction motor drive system which is operated in unity as well as leading power factor. Active and reactive power flow are independently controlled. The active power transfer is controlled by angle delta; where delta...
This paper presents work related to management of active and reactive power exchange between a distributed generation (DG) source and the grid to which it is connected; for improved utilization of electricity generated by the DG source such as solar energy. This is based on the recently introduced Availability Based Tariff (ABT) concept for the consumer loads, where conventional power grid is available...
There has been a gradual increase in generation of power from renewable energy resources interfaced to existing utility grid to increase its reliability. Tapping of these resources is done in multiple ways like standalone wind generators or photovoltaic plants, microgrids etc. Interfacing DC sources like photovoltaic cells, battery, fuel cells with AC systems requires tie line inverter with robust...
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