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An improved performance of a 3-phase grid integrated solar photovoltaic (PV) system is presented by incorporating a hybrid fractional normalized least mean square (FNLMS) algorithm with an appropriate maximum power point tracking (MPPT) method. The adopted 3-phase, 3-wire, single stage grid system consists of PV array, filters, loads, and a 3-leg voltage source converter (VSC) with a DC link capacitor...
This paper deals with an improvement in power quality and reduction in power consumption of the brushless DC (BLDC) motor targeting low power home appliances. Hall Effect sensors are used to detect the rotor position for electronic commutation of the BLDC motor. The motor is fed through a three phase voltage source inverter (VSI) fed through single phase diode bridge rectifier and a DC- DC converter...
Conventional PFC circuits in EV (Electric Vehicle) battery chargers have the efficiency limitation due to high conduction loss associated with a diode bridge rectifier (DBR) at the input. To mitigate this issue, a bridgeless single ended primary inductance converter (SEPIC) with improved power quality is presented in this paper. The input current drawn by the charger shows a unity power factor operation...
This paper proposes a bi-directional electric vehicle (EV) battery charger which operates in all four quadrants of P-Q (Active-Reactive Powers) plane. This charger is composed of full bridge AC-DC converter and bi-directional buck-boost DC-DC converter. It is designed to operate in both grid-to-vehicle (G2V) and vehicle-to-grid (V2G) modes. In addition to this, it is capable of exchanging reactive...
In the rainy season, the climate fluctuation and rate of environmental change is very high. as well as the movement of clouds and water drops create a partial shaded situation on PV (photovoltaic) panel. Therefore, the extraction of maximum power from PV panel is the major challenge in the rainy season. This paper introduces a novel “Improved Antlions Optimization” (IAO) algorithm for quick searching...
This paper introduces a single sensor based maximum power point tracking (MPPT) strategy for solar photovoltaic (PV) array fed battery charging by using normal harmonic search (NHS) algorithm. The NHS algorithm is an improved version of the harmony search, which is inspired to the music composition technique and its searching ability is improved by using the normal probability distribution factor...
This paper proposes a central control framework to coordinate proportionate charging of batteries based on their capacity in an autonomous DC microgrid. This serves the purpose of longevity and reliability issues in an autonomous microgrid. The uneven distribution of power based on a preferential charging/discharging approach is implemented using a multi-input single output(MISO) mamdani based fuzzy...
This paper presents a modular configuration of a three-phase power factor corrected (PFC) arc welding power supply (AWPS) using bridgeless (BL) isolated Cuk converter. Discontinuous inductor current mode operation (DICM) of Cuk converter enables this AWPS to attain unity power factor (PF) inherently at the utility interface. In the proposed BL converter, the diode bridge rectifier (DBR) at the input...
This paper deal with an improved adaptive detection (IAD) control approach for a grid tied solar photovoltaic (SPV) system. The SPV grid interfaced systems are facing several power quality issues due to extensive use of nonlinear and reactive loads. To eliminate these problems, an IAD based control approach for the proposed system is implemented for the mitigation of harmonics, reactive power and...
This paper presents a single stage 3P4W (Three Phase Four Wire) SPV (Solar Photovoltaic) by using an adaptive third order digital filter based control technique. The proposed 3P4W SPV system has two main sections. The first section is used to obtain peak power from the SPV array by using an INC (Incremental Conductance) based control technique. Whereas, in second section, an adaptive third order digital...
This paper presents a hyperbolic tangent function (HTF) based higher order adaptive control algorithm with a perturb & observe (P&O) MPPT (Maximum Power Point Tracking) for a three phase grid connected single stage SPV (Solar Photovoltaic) system with DSTATCOM (Distribution Static Synchronous Compensator) capabilities. The variable learning based HTF reduces the mean square error in the system,...
The fundamental objective of this paper is to deliver a simple, robust and economical solution for the solar water pumping. The topology employed for single stage SPV (solar photovoltaic) array fed water pumping includes a SPV array, 3-phase VSI (Voltage Source Inverter), PMSM (Permanent Magnet Synchronous Motor) and the pump. As the SPV array converts the energy of the photon falling on its surface...
A dual output PFC Cuk converter is proposed to obtain the power factor correction and switched reluctance (SRM) motor control. As per the requirement, two equal output voltages are required to feed the mid-point converter fed SRM drive. The motor control is obtained by varying the DC link voltage over wide range. The modified Cuk converter operating in DCM (Discontinuous conduction mode) with wide...
This paper presents a least mean tenth (LMT) control algorithm for a three phase single stage grid connected solar photovoltaic (PV) system to improve the power quality of the distribution network. The perturb and observe (P&O) algorithm is used to extract maximum power from PV array along with control of DC link voltage of voltage source converter (VSC). The proposed control algorithm has fast...
This work presents an improved perturb and observe (P&O) algorithm based MPPT (Maximum Power Point Tracking) for a single stage solar photovoltaic (PV) array integrated with a three phase grid. Due to simple implementation and efficient tracking, the P&O approach of extracting maximum power from a PV array is very popular and efficient tracking technique among all MPPT techniques. However,...
This paper presents the design and control of wind diesel hybrid system feeding 3-phase 4-wire distribution network. The grid is energized by conventional diesel generators. Wind energy block consists of a wind turbine coupled to DFIG (Double Fed Induction Generator) equipped with MPPT (Maximum Power Point Tracking). The MPPT demands regulation of the turbine speed which is realized with the help...
This paper presents a smart solar water pumping system with the grid interactive features using an induction motor drive. To alleviate the burden on the electrical grid, solar PVs (SPV) can be used to power up the agricultural and irrigational loads. The system is designed not only to provide the rated discharge of water but also to feed the surplus power to the grid. The SPV array is operated at...
This paper deals with a solar energy conversion system (SECS) interfaced with three phase grid using a fourth order generalized integrator quadrature signal generator (FOGI-QSG)based control algorithm, which helps to mitigate the power quality problems like power factor correction, load balancing, harmonics elimination and noise cancellation. The perturb and observe (P&O) based maximum power tracking...
This paper proposes a bidirectional power flow control of a grid interactive solar photovoltaic (SPV) fed water pumping system. A brushless DC (BLDC) motor-drive without phase current sensor, is used to run a water pump. This system and control enable a consumer to operate the water pump at its full capacity for 24-hours regardless of the climatic condition and to feed a single phase utility grid...
This paper deals with a hydro-SPV (Solar Photovoltaic) based microgrid which consists a voltage source converter (VSC) for maintaining voltage and frequency of the system and a bidirectional converter is used for controlling the battery charging/discharging and maintaining the DC-link voltage at SPV MPP (Maximum Power Point) voltage. The proposed system performs many functions such as MPPT, SPV energy...
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