Ongoing and Completed Projects

• Design of multifunctional converter and development of control algorithm.

• Evaluation of the converter for bipolar load side operation for voltage mitigation.

• Evaluation of the converter interfaced to battery string and dynamic loads (motors).

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• Development of advanced control techniques for the converter.

• • Evaluation of an integrated dual input converter as a power electronic interface between series-connected batteries and load.

• • Development of pulse width modulation strategy of the proposed converter to regulate the output voltage while maintaining the voltage balance amongst the cells of the single battery string.

• • Development of adaptive control algorithms for optimal load sharing by different batteries based on relay switch position.

• We proposed a power converter architecture denoted as an integrated dual input converter (IDIC). IDIC topology is designed in such a fashion that the line current of positive and negative poles can be independently controlled with reduced switches.

• The proposed IDIC is capable of regulating the output voltage while reducing the overloading effect in bipolar lines during voltage-unbalanced and reduced voltage conditions.

• A suitable control scheme is developed for the IDIC which provides the flexibility to vary the converter input impedance dynamically to compensate for the unbalance voltage.

Currently, an improved model predictive control-based algorithm is in developing stage which will improve the performance of the converter. 

• Development of a PPS architecture using a SAB converter combined with an ACC to support pulsed load operation.

• A current sensorless ACC control methodology based on output voltage hysteresis for improved regulation.

• Experimental validation of the proposed scheme using a laboratory-scale prototype, demonstrating reliable pulse power delivery and stable voltage regulation.

Currently a GaN based Prototype with planar magnetics is in development stage which will be used for high power density applications.

• Development of fuzzy-logic controller for bldc motor drivetrain used in LEVs.

•  FPGA-based development of fuzzy logic controller.

•  Encoderless implementation of fuzzy logic controller.

•  Enhanced battery life of the LEV subsystem.

• Design and development of a portable power electronic converter unit, that can be easily carried and connected to the faulty line to estimate the location of the fault. 

• Development of a fault location detection scheme without using current sensors and high sampling rate data acquisition equipment.

• Development of fault localization algorithm which can be implemented with low speed processors with reduced computational burden. 

• Evaluation and applicability of proposed methodology on fault localization in dc-distribution systems in dc smart homes.

• In-situ technique to determine the non-ideal parameters of a dc-dc converter. 

• Generalized approach to determine various non-ideal parameters of the dc-dc converter.

• A novel method to detect switch on-state resistance, inductor DCR, and diode voltage drop of a fabricated converter. 

• Health monitoring of the converter using the estimated parameters.

• Optimized current sharing between converters connected in parallel.

• Improved current sharing between different sources connected with a multiport converter (MPC).

•  A unified digital current estimation method for single order dc-dc converters operating in CCM and DCM modes has been proposed.

• Development and design of current estimator for boost converter.

• Validation of dynamic behavior of dc-dc converters operating with wide load range.