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The paper aims at the development of photovoltaic (PV) energized irrigation pump employing a switched reluctance (SR) motor with a cascaded boost-buck (Bo-Bu) converter as a power conditioning stage. The utilized DC-DC converter as power conditioning stage comprises of a boost converter followed by a buck converter with proper voltage control. It performs the functions of maximum power point tracking...
In this paper, a three-phase grid tied SPV (Solar Photovoltaic) system is controlled through a FFP (Fixed Forward Prediction) based algorithm, which extracts fundamental load current component connected at PCC (Point of Common Coupling). This VSC with FFP based control algorithm feeds the SPV energy to the grid for balancing of the loads, reduction of harmonics, stabilization of grid under voltage...
This paper presents a simple control approach for photovoltaic energy fed water pumping system based on a synchronous reluctance motor (SyRM) drive. A boost converter is employed between the solar photovoltaic (SPV) array and a three phase voltage source inverter. The objective is to extract maximum power from SPV array and to control the SyRM efficiently. The boost converter is utilized for the optimization...
This paper presents the operation of a control algorithm that requires only one voltage sensor. The control algorithm can be used in various applications of voltage source converter. For the sake of control algorithm verification, the case of Active Power Filter (APF) is explained here. Operation with a single voltage sensor is accomplished by using the fact that only phase angle or zero crossing...
Now a days, the energy efficiency is gaining central stage in policy designs of a country to address issues of climate change and energy security. Adoption of energy efficiency has vast potential to use the energy at optimized cost and to use national energy resources in sustainable manner. Energy saving certification (ESCert) is a market based incentive mechanism to promote energy efficiency in systematic...
This paper shows solar photovoltaic (PV) array fed to cascaded H-bridge nine level converter system where maximum power point tracking (MPPT) is achieved by the incremental conductance (INC) control algorithm. To have appropriate solution and utilization of PV modules and to maximize the solar energy extraction, the viable control and modulation are instigated. Here, the control is realized using...
This paper presents a modified bridgeless Landsman converter-fed power factor correction (PFC) for light emitting diode (LED) driver. The application is targeted for high brightness (HB) projection applications with brightness control of high brightness red-green-blue (HB-RGB) LEDs. The pulse width modulation (PWM) technique is used for current control to achieve effective brightness control of LED...
This paper proposes a twelve-pulse AC-DC converter fed three level neutral point clamped (NPC) voltage sources inverter (VSI) based field oriented controlled (FOC) induction motor drive (IMD). Power quality improvement at utility is achieved by a twelve-pulse AC-DC converter along with high pass passive filter to meet an IEEE-519 standard. The space vector modulation (SVM) strategy is used to balance...
This paper presents a solar PV array fed speed sensorless vector controlled induction motor drive for water pumping system. For the purpose of harnessing maximum possible power from solar PV array, a DC-DC converter is used. The soft starting of the motor is achieved to mitigate switching stress of the converter and then the maximum power is tracked using a well-known perturb and observe (P &...
This paper deals with the solar energy conversion system (SECS) tied to a three phase grid by using an improved second order generalized integrator with frequency locked loop (ISOGI-FLL) based control algorithm to mitigate the power quality problems. The steepest descent maximum power point tracking (MPPT) algorithm is used to extract the maximum power from solar photovoltaic (SPV) array to increase...
This work is associated with the renewable energy based microgrid for a standalone operation. The places where the renewable energy sources such as wind, solar, hydro etc. are in abundance can be used to generate electricity by developing microgrid (MG) such as wind- hydro MG. A synchronous reluctance generator (SyRG) is used as a constant speed hydro turbine and a permanent magnet brushless DC generator...
This paper proposes a three-phase single stage power factor corrected (PFC) bridgeless modular zeta converter based switched mode power supply (SMPS) suited for welding applications demanding high current and low voltage at the output. Typically, for high-power welding applications, modular arrangement of converters is suggested to reduce the device rating and provide ease of power expandability as...
In this paper, a composite observer based control technique is proposed for a single-stage single-phase solar photovoltaic (PV) grid tied system. The system aims at integrating solar PV power generating station to single-phase distribution grid for supplying active power to linear or nonlinear loads connected at the point of interconnection (PoI). The main contribution of this paper is the use of...
A power electronic transformer (PET) with a cycloconverter on the grid side is being proposed in this paper for integrating several renewable energy sources to the grid. A single 1-phase multi-winding high frequency transformer connects multiple wind energy conversion systems and solar photovoltaic arrays to the cycloconverters using separate H-bridge PWM converters. The current is smooth and continuous...
In an attempt to provide a humble 100W electricity for a DC powered home in an incessant manner, this work deals with the design and implementation of a solar PV based home with uninterrupted power supply. The back-up power is supplied by the power grid and battery. In order to keep output voltage constant, the solar PV is cascaded with a buck converter which has a PWM modulator circuit in its feedback...
This paper presents a dual output PFC converter for switched reluctance motor (SRM) drive. Here, a modified SEPIC converter is proposed for wide range of speed control and to achieve power factor correction at AC mains. To regulate the DC link voltage, a single voltage sensor is used which output is used to drive the midpoint converter fed SRM. The switching frequency of the converter is considered...
This paper proposes the SPG (Solar Photovoltaic Generator) fed dual output boost converter utilized for water pumping employing a switched reluctance (SR) motor. The dual output boost converter is used here to provide the balanced voltages to a midpoint converter which is used as a power converter for SRM drive. The control algorithm eliminates the startup problem associated with a midpoint converter...
This study proposes a new control for grid-connected solar PV (Photovoltaic) system which simultaneously injects active power and improves the quality of power of a three-phase distribution grid. The system comprises of a solar PV array, a VSC (Voltage Source Converter), a RC ripple filter and interfacing reactors connected to the three-phase distribution grid and linear/nonlinear balanced/unbalanced...
The cascaded converter (CC) topology is proposed for solar PV (Photovoltaic) system to provide high number of voltage levels, reduced harmonics distortion, low switching losses, simplicity of process at high voltages and improvement in power quality. It has multiple source SPV tied to AC grid which incorporates a twenty seven level CC operating at fundamental switching frequency. The design and control...
In this paper, a second-order Volterra filter is used in association with Lyapunov's stability theory to generate the reference currents for a SPV-DSTATCOM (solar photovoltaic-distribution static compensator) system in the distribution system. The SPV-DSTATCOM system is integrated to the grid to compensate a nonlinear load while supplying SPV active power to the grid. The system is implemented on...
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