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The increasing trend towards usage of precisely controlled, high torque, efficient and low noise motors for dedicated applications has attracted the attention of researcher in Brushless DC (BLDC) motors. BLDC motors can act as an acceptable alternative to the conventional motors like Induction Motors, Switched Reluctance Motors etc. This paper presents a detailed study on the performance of a BLDC...
A PhotoVoltaic Array (PVA) model is developed in this paper using basic circuit equations of the PhotoVoltaic (PV) solar cells including the effects of temperature changes and solar irradiations. An attempt has been made in this paper to analyze the performance of a Boost Converter using Sliding Mode Controller when it is fed with a PV source. The performance, when compared with a PI controlled Boost...
Power Quality is playing an increasingly significant role both at supply and demand sides. With the advent of participation of private player's in distribution systems, the power quality is expected to be the pivotal decisive factor before the consumers. Due to ever growing application of switching devices, the power quality is bound to get deteriorated, at the same time such devices are also prone...
This paper presents a topology for DVR integrating Proton Exchange Membrane Fuel cell with closed loop boost converter as a DC input to the DVR. DVR is a series compensation device used to protect the system against sudden changes in the system voltage. Voltage flaws such as swell/sag, interruption and harmonics introduced into the system can be compensated using DVR as it injects appropriate amount...
Increasingly growing trend towards usage of green and eco friendly electrical devices has lead to research development in Brushless DC (BLDC) motors. The BLDC motors exhibit better performance in terms of higher efficiency, higher torque under low speed range, higher power density, lower maintenance and lesser noise than other motors. BLDC motors can act as acceptable alternatives as against the conventional...
With ever increasing trend of implementation of renewable energy resources in power systems it has become relevant to study the dynamics of their integration with the available technologies. Of all renewable resources, Photovoltaic generation is going to be the most prevalent in India. Keeping this in mind, an attempt has been made in this paper to analyze the performance of a Voltage Source Inverter...
A Photo-Voltaic Array (PVA) model is developed in this paper using basic circuit equations of the Photo-Voltaic (PV) solar cells including the effects of temperature changes and solar irradiations. The output voltage of PVA is increased deploying a boost converter. The output of boost converter is fed to a SVPWM controlled inverter which supplies three phase ac to an induction motor. The investigation...
The trend of growing penetration of renewable energy resources in power systems has become pertinent in wake of fast depleting fuel and rising carbon emission. It has, therefore, become relevant to study the dynamics of their integration with the available technologies. Of all renewable resources, Photovoltaic generation is the most prevalent resource in India. Keeping this in mind, a multistage cascaded...
This paper presents a two stage solution methodology for deterministic unit commitment problem. In the first stage the ON/OFF status of units is determined by priority list method while in the second stage the economic load dispatch has been solved by Particle swarm optimization technique. The proposed technique is applied in MATLAB environment on two different cases comprising of four and ten generating...
Brushless motors offer several advantages over their brushed counterparts, including more torque per weight, increased efficiency, increased reliability, reduced noise, longer lifetime, elimination of ionizing sparks from the commutator, and overall reduction of electromagnetic interference (EMI). This paper describes the influence of different harmonics currents in the motor drive application. A...
This paper proposes a constant instantaneous power based controller for a shunt active power filter system (SAPF). A SAPF has been designed, built to work under balanced; unbalanced and distorted supply conditions to meet IEEE 519 recommended harmonic standards. The shunt active filter is controlled by a constant instantaneous power based controller to act as a harmonic isolator among the supply and...
Three conventional control techniques for extracting reference currents for shunt active power filters have been assessed and their performances have been compared with a novel fuzzy logic based control technique. Critical analysis of Comparison of the compensation ability of different control strategies based on THD and speed will be done and suggestions will be given for the selection of technique...
Assessment of three conventional control techniques for extracting reference currents for shunt active power filters have been done and their performances have been compared with fuzzy logic based control technique. Critical analysis of Comparison of the compensation ability of different control strategies based on THD and speed will be done and suggestions will be given for the selection of technique...
Three traditional control techniques for extracting reference currents for shunt active power filters have been assessed and their performances have been compared, when Genetic algorithm and fuzzy logic controller have been applied in these strategies to improve them. Critical analysis of Comparison of the compensation ability of different control strategies based on THD and speed will be done and...
A Routh-Pade approximation method is presented for obtaining stable reduced order model of 2-D non-separable-denominator discrete-time system. The proposed method preserves initial power-series-expansion-coefficients/Markov-parameters of the system as well as minimizes the errors between a set of subsequent power-series-expansion-coefficients and/or Markov-parameters of the 2-D system and those of...
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