Sanjay Bodkhe

Shri Ramdeobaba Kamla Nehru Engineering College | RKNEC · Electrical Engineering

The growth of any country depends upon the availability, accessibility and growth of electricity. The need of energy rises due to the modern lifestyle and advanced technologies in residential sector and hence in industrial sector. The un-even demand in energy during different time intervals of a day leads to unbalanced load curve at power plant. To...

This article presents two practical methods used for lowering residential consumers' electricity bills. The first method is the implementation of net metering, which is used in many areas, such as Australia, the United States, the United Kingdom, the European Union, India, South America, Brazil, Colombia, and Argentina [1]-[3]. One example of the i...

Power swing is a transient event in the power system that is incepted by various phenomenons such as suddenloss or sudden addition of load, tripping of line due to faults etc. The conventional Distance relays are set tooperate for faults may mal-operate during Power swings which lead to transient instability of the system alongwith low post fault p...

Modern industries are installed with an adjustable speed drive (ASD), which is more sensitive to power qualityissues. The most common reason for the tripping of ASD is the voltage sag. Hence, the impact of various typesof sags on the performance of ASD is presented in this paper. The basic topology of ASD fed by uncontrolledrectifier is presented i...

This paper gives a review of energy scenario in India and other countries. Today’s demand of the world is to minimize greenhouse gas emissions, during the production of electricity. Henceforth over the world, the production of electrical power is changing by introducing abundantly available renewable energy sources like sun and wind. But, because o...

New speed estimation technique is proposed in this paper. This is used to formulate a single current sensor-based vector controlled surface mounted (SM) permanent magnet synchronous motor (PMSM) drive. A combination of dc-link measurement and model reference adaptive scheme (MRAS) is adopted for the implementation of speed sensorless control. Unlik...

Fundamental drawback of SR (switched reluctance) motor is torque ripple which is caused because of the current switching in the phase windings and saliency. The torque ripple introduces acoustic noise and undesirable vibrations in SRM. In this paper, another solution is proposed, which can obtain direct torque control (DTC) with voltage states of m...

In this paper, a control mechanism for speed control of switched reluctance motor (SRM) with torque ripple reduction utilizing moth flame optimization algorithm and genetic algorithm with recurrent neural network (CMFG-RNN) is presented. The control mechanism comprises of FOPID speed controller in the external loop and current controller in the int...

In this paper, the torque ripples in the switched reluctance motor (SRM) is constrained by utilizing an Ant Colony Optimization and an Adaptive Neuro Fuzzy Inference System (ANFACO). The control scheme is utilized for the simultaneous control of the speed and current of the SRM which fuses two controlling loops of PI controller. The external loop i...

This paper presents a new single sided axial flux brushless dc (AFBLDC) motor drive with concentrated windings and surface mounted magnets on the rotor. The AFBLDC motors have gained popularity in recent past because of smaller axial length, high power density, high efficiency, wide speed range, robustness, low cost and less maintenance. The protot...

In this paper, an improved proportional integral stator resistance estimation for a direct torque controlled induction motor is proposed. This estimation method is based on an on-line stator resistance correction regarding the variations of the stator current estimation error. In fact, the input variable of the PI estimator is the stator current es...

In this paper, an improved proportional integral stator resistance estimation for a direct torque controlled induction motor is proposed. This estimation method is based on an on-line stator resistance correction regarding the variations of the stator current estimation error. In fact, the input variable of the PI estimator is the stator current es...

In this paper a new, simple multilevel inverter topology is proposed. Multilevel inverter uses several dc sources and power switches to synthesize desired output voltage waveform. The single phase structure of proposed topology in this paper consists of two dc sources and eight power switches. When the magnitudes of dc sources are equal it operates...

In this paper a new, simple multilevel inverter topology is proposed. Multilevel inverter uses several dc sources and power switches to synthesize desired output voltage waveform. The single phase structure of proposed topology in this paper consists of two dc sources and eight power switches. When the magnitudes of dc sources are equal it operates...

In this paper a basic block of novel topology of multilevel inverter is proposed. The proposed approach significantly requires reduced number of dc voltage sources and power switches to attain maximum number of output voltage levels. By connecting basic blocks in series a cascaded multilevel topology is developed. Each block itself is also a multil...

Multilevel inverters are an attractive choice for multi mega-watt industrial drive applications. In comparison with conventional two level voltage source inverter this technology gives quality performance. In this paper comparison of three classical topologies of three phase multilevel inverter is presented. The multilevel inverters analyzed using...

As the power demand increases; technology has to be advanced; rotating machines are playing the vital role in every industry; but due to limitation in the topologies; applications are also limited. Every machine has a limitation over speed and torque requirement. So according to today's scenario; a machine is required which fulfils most of the indu...

Conventional techniques for sensorless control of permanent magnet synchronous motor drive (PMSM), which requires information on rotor position, are reviewed, and recent developments in this area are introduced in this paper along with their inherent advantages and drawbacks. The paper presents an improved method for sensorless speed control of PMS...

Compact motor with high torque and wide speed range is the primary requirement for in-wheel electric vehicle application. Axial flux permanent magnet (AFPM) brushless direct current (BLDC) motors are an interesting solution for electric vehicles, because of their shape, flexibility, compactness, robustness, high efficiency, wide speed range and hig...

Permanent Magnet Synchronous Motor (PMSM) has been considered as the best choice for numerous applications. To make PMSM a high performance drive, effective control system is required. Vector control is accepted widely due to its decoupling effect but it is not the only performance requirement. Additional control methods such as constant torque ang...

This paper proposes a hardware implementation of new method for speed sensorless control of surface mounted (SM) permanent magnet synchronous motor (PMSM) drive. It adopts combination of the DC link measurement and the modified model reference adaptive scheme (MRAS) to estimate rotor speed and position. A 16-bit dsPIC33EP256MC506 DSC is used to imp...

This paper presents a new open-loop speed estimation method for a three-phase induction motor drive. The open-loop speed estimators available in literature have the advantage of reduced computational stress over the observers but they share a common limitation of being largely dependent on flux and machine parameters. They involve integrations and...

In electrical circuit electrical Energy is the product of Voltage, Current, Time. Current decided by load. Source generally has drooping characteristics of voltage as in case of battery. Then only reconfiguration to increase the voltage for expediting the energy transfer. If Ultra capacitor is source of energy, due to large time constants are invol...

This paper presents a new algorithm for the reconstruction of phase currents of an inverter-fed, three-phase induction motor from its dc link current. In conventional current-regulated induction motor drive, the phase currents are actually measured by using current sensors which are connected on the stator side. To reduce the number of sensors, dif...

In the parameter estimation algorithm of speed sensorless induction motor drive, the complete model of induction motor is replaced with its reduced order model by many researchers. However, no guideline is available in the literature for the selection of appropriate model under various operating conditions. In this paper, a detailed investigation i...

The electronic inverters normally operate in a current controlled mode. Current controllers are prone to errors associated with nonlinearity and offsets in the current transducers. Their successful operation requires measurement of the instantaneous values of stator currents. Using the switching signals and dc link current, this paper presents a ne...

This paper presents a new control strategy for three-phase induction motor which includes independent speed & torque control loops and the current regulation thereby overcoming the limitation (i.e. sluggish response) of volts per hertz controlled industrial drives. For close-loop control, the feedback signals including the rotor speed, flux and tor...

This paper presents a new control strategy for three-phase induction motor which includes speed and torque control loops and the current regulation thereby overcoming the limitation of volts per hertz control drives. For close-loop control, the feedback signals including the rotor speed, flux and torque are not measured directly but are estimated b...

This paper develops a systematic and mathematical study of the balancing theory of a three level DC-DC converter. It is proposed to make DC link voltages balanced across the capacitor stack. This voltage distribution gets equally distributed by selecting the appropriate switching frequency. This work is to investigate the new control scheme to inco...

In speed sensorless induction motor drive, motor model with detailed information assumes paramount importance. The use of reduced order model reduces the computation time which is more desirable when on-line estimation of machine parameters is required. The reduced order models give sufficiently accurate results in some cases, but they cannot be us...