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This paper proposes a standalone double stage solar photovoltaic (PV) water pumping system. This system utilizes a PV array, boost dc-dc converter, three phase VSI (Voltage Source Inverter), PMSM (Permanent Magnet Synchronous Motor) and a centrifugal pump. The boost converter used between PV array and VSI, serves the purpose of MPP (Maximum Power Point) tracking by adjusting the duty ratio using an...
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 brushless DC (BLDC) motor driven water pump powered by a solar photovoltaic (SPV) array and a battery storage. The SPV-battery based hybrid generation is used as a power source in order to achieve a continuous full volume water delivery regardless of the climate condition. The SPV array is used as a primary source while the battery as a backup. Therefore; the battery is discharged...
This manuscript deals about the configuration of a power factor correction (PFC) converter feeding a drive of brushless DC (BLDC) motor for medium and low power equipment. The front-end PFC converter working in discontinuous inductor current mode (DICM) is applied for regulating the DC link voltage and PFC is achieved inherently. The BLDC motor speed is adjusted by regulating the DC link voltage of...
This paper deals with the development of a simple, cost-effective, efficient, reliable and eco-friendly water pumping system utilizing a DC-DC boost converter as an intermediate power conditioning unit in solar photovoltaic (SPV) array fed brushless DC (BLDC) motor driven water pump. The power optimization of SPV array and limiting starting inrush current of the BLDC motor are two major functions...
Direct Torque Control (DTC) is the state-of-the-art control strategy for 3-phase AC motor drives which allows direct control of torque and flux without involving very intensive computations that are inevitable for field oriented control (FOC). It is well known that DTC has more torque and flux ripples as compared to FOC as the former is based on voltage vector selection from a 3-phase 2-level inverter...
This paper presents a non-isolated boost integrated buck rectifier/energy storage DC-DC (NI-BIBRED) converter fed brushless DC (BLDC) motor dive. The speed of proposed drive is controlled by adjusting the DC link voltage of voltage source inverter (VSI) feeding a BLDC motor. The BLDC motor is electronically commutated to operate the VSI in fundamental frequency switching for reduced switching losses...
This work presents a new configuration of power factor correction (PFC) based isolated Sheppard-Taylor converter for feeding brushless DC (BLDC) motor drive. In this work, fundamental frequency switching (FFS) of voltage source inverter (VSI) is used for reducing the switching losses in six solid-state switches of the VSL This is achieved by electronic commutation of BLDC motor and the DC bus voltage...
This paper deals with the power factor correction (PFC) in a brushless DC (BLDC) motor drive using a boost-forward single-stage isolated power-factor-corrected power supply (SSIPP). The DC link voltage of the voltage source inverter (VSI) feeding BLDC motor is varied for controlling the speed of a BLDC motor. Moreover, the BLDC motor is commutated electronically such that the six solid state switches...
This work presents a new configuration of a Luo converter with high frequency isolation for feeding brushless DC (BLDC) motor drive with power quality improvements at AC mains. In this work, a low frequency switching of the voltage source inverter (VSI) is used for reducing the switching losses associated with the six solid-state switches of VSI (Voltage Source Inverter). This is achieved by electronic...
A power factor correction (PFC) based bridgeless Sheppard-Taylor converter for feeding brushless DC (BLDC) motor dive is presented in this work. The voltage of DC bus of the voltage source inverter (VSI) feeding BLDC motor is adjusted for speed control. The BLDC motor is electronically commutated to operate the VSI in low switching frequency for reducing the switching losses in it. The proposed PFC...
This paper deals with a stand-alone wind energy conversion system (WECS) using a permanent magnet brushless DC generator (PMBLDCG) and a battery energy storage system (BESS). The voltage and frequency controller (VFC) consists of a three phase diode bridge rectifier, a boost DC-DC converter, a BESS, a four-leg voltage source inverter (VSI) supplying three-phase four wire consumer loads. The maximum...
This research article deals with the two closed loop speed control techniques namely Vector Control and Direct Torque Control for Permanent Magnet Synchronous Motor Drive. These two control techniques are critically evaluated for the performance comparison in terms of starting response, steady state response and transient condition. The simulation models of the two controllers are developed in Matlab/Simulink...
This paper employs a single-phase unified quality conditioner (UPQC), an integration of shunt and series active filters (APF), to perform voltage and supply current harmonics mitigation and power factor correction. Both the shunt and series APFs are realized using a single-phase, two leg voltage source inverter (VSI). For the series APF the control strategy is based on Unit Vector Template (UVT),...
Innovations in renewable energy technology are becoming important as worldwide needs for affordable, reliable & clean energy grow worldwide. Research is needed for new generation technologies and effective integration of these into electric grid. Renewable sources are abundant particularly in India and we can harness these resources for producing electricity. Globally speaking, wind technology...
The unified power quality conditioner (UPQC) is a power conditioning device, which is a integration of back to back connected shunt active power filter (APF) and series APF to a common DC link voltage. For improvement of power quality (PQ) problems in a three-phase four-wire distribution system, two topologies are proposed in this paper. A comparative analysis of these topologies along with the most...
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