Kuldeep Jayaswal

Bio: Kuldeep Jayaswal is an academic researcher from Rajasthan Technical University. The author has contributed to research in topics: PID controller & Fault detection and isolation. The author has an hindex of 6, co-authored 10 publications receiving 58 citations.

Performance Analysis of Non-Isolated DC-DC Buck Converter Using Resonant Approach

Abstract: DC-DC converters preserve or control the output DC voltage. Due to parasitic constituents such as leakage capacitance of both diode and inductor, and transformer leakage inductance, DC-DC converters mostly operate on rigid switching conditions which result in high switching losses. These parasitic constituents affect the dc-dc converter’s operational reliability, instigate electromagnetic interference issues and limit the converter’s operation at higher frequency operations. In this paper, resonant or soft-switch approach has been employed to improve the operating performance and design-oriented principle investigations have been carried out for overcoming the issues of parasitic constituents in 24-12V DC-DC step-down (buck) converter. This paper divulges the analysis and Matlab Simulation results for 24-12V buck converter based on resonant or soft-switching approach.

Performance investigation of PID controller in trajectory control of two-link robotic manipulator in medical robots

Abstract: Robot-assisted surgical procedures have gained much coverage in recent years and favored over manually conducted operations. The medical robots are comprised of manipulators arm that is the multi-d...

Analysis of Dual Active Bridge Converter for Solid State Transformer Application using Single-Phase Shift Control Technique

Abstract: Solid State Transformer (SST) is a popular device in the present scenario. Power electronics-based SST has many advantages over the conventional transformer likewise; high switching frequency, less weight, low losses. It is a multi-stage transformer composed of different stages of converters likewise; rectifier, inverter and dual active bridge (DAB) for the desired output. It has been evident that stand-alone SST is not able to provide a stable output without any control technique. For SST, the DAB DC-DC converter plays an important role; it provides constant power with a better range at higher efficiency and minimizes the number of passive components. The proposed converter consists of eight semiconductor switches that are isolated through a transformer of high-frequency. In this paper, DAB dc-dc converter has been simulated and analyzed in MATLAB Simulink environment as an application of SST. Here, a single-phase shifting technique (SPS) has been used to minimize the large Dc link capacitor for obtaining a stable output voltage.

Detection of Fault and Identification of Faulty Phase in Series Capacitor Compensated Transmission Line Using Wavelet Transform

Abstract: In this study, wavelet transform is utilized for fault detection and faulty phase identification in a series capacitor compensated three phase transmission line. The series capacitor compensation originates issues in protection schemes of the three phase transmission lines. The proposed technique has been broadly tested using the MATLAB/ SIMULINK test system of a 400 kV, 50 Hz and 300 km long series capacitor compensated three phase transmission line. The three phase currents recorded at only one terminal of the transmission line are used to evaluate wavelet coefficients. Daubechies-5 wavelet is used for the processing of the three phase current signals. A broad range of test studies were carried out for numerous types of shunt faults by varying various fault parameters. Moreover, the proposed technique is also robust to transforming and cross-country faults. The simulation results of the proposed work shows that the proposed technique correctly detects the faults and identifies the faulty phase.

Breeding of New Productive Bivoltine Hybrid, CSR12 $\times$ CSR6 of Silkworm Bombyx mori L.

Abstract: With an objective of evolving quantitatively and qualitatively superior bivoltine breeds/hybrids of silkworm Bombyx mori L. for tropical conditions, breeding work was initiated in Central Sericultural Research and Training Institute, Mysore during 1992 by utilizing two Japanese hybrids namely BNl8×BCS25 and Shunrei×Shogetsu along with Indian evolved breed, KA. The breed CSR12 which is characterized with sex-limited larval marking and white oval cocoons was evolved from the Japanese hybrid BNl8×BCS25 by crossing with KA, while the breed CSR6 which is characterized with normal marking (marked larvae) and white dumbbell cocoons was extracted from the Japanese commercial hybrid Shunrei×Shogetsu through continuous inbreeding coupled with selection. After fixation, these breeds along with other newly evolved breeds were subjected to hybrid study under optimum environmental conditions in the laboratory for expression of full potential of the genotypes. These hybrids were evaluated by Multiple Trait Evaluation Index (Mano et al., 1993). The hybrid CSR12×CSR6 was selected based multiple trait evaluation index value. The hybrid CSR12×CSR6 recorded survival of 96.0%, shell weight of 50.0 cg, shell ratio of 24.3%, raw silk percentage of 19.6, filament length of 1,216 m, boil off loss of 22.4% and renditta of 5.1. On the other hand, the control hybrid (KA×NB4D2) has recorded survival of 90.6%, shell weight of 42.1 cg, shell ratio of 20.4%, raw silk percentage of 15.9, filament length of 999 m, boil off loss of 24.8% and renditta of 6.3. The hybrid CSR12×CSR6 was authorized during 1997 by Central Silk Board, Government of India for commercial exploitation during favourable months based on national level race authorization test.

Control of a DC-DC Dual Active Bridge Converter in DC Microgrids Applications

Abstract: In this paper, a control strategy for an isolated DCDC dual active bridge converter to adapt different voltage levels in a DC microgrid is proposed. The control strategy allows regulating the output voltage while maintaining in zero the mean value of the current in the high frequency transformer. The system is represented with a linearized version of its generalized average model and the controller is designed using classical techniques. The performance of the proposal is validated with simulations and experimental results.

Performance investigation of PID controller in trajectory control of two-link robotic manipulator in medical robots

Abstract: Robot-assisted surgical procedures have gained much coverage in recent years and favored over manually conducted operations. The medical robots are comprised of manipulators arm that is the multi-d...

Analysis of Dual Active Bridge Converter for Solid State Transformer Application using Single-Phase Shift Control Technique

Abstract: Solid State Transformer (SST) is a popular device in the present scenario. Power electronics-based SST has many advantages over the conventional transformer likewise; high switching frequency, less weight, low losses. It is a multi-stage transformer composed of different stages of converters likewise; rectifier, inverter and dual active bridge (DAB) for the desired output. It has been evident that stand-alone SST is not able to provide a stable output without any control technique. For SST, the DAB DC-DC converter plays an important role; it provides constant power with a better range at higher efficiency and minimizes the number of passive components. The proposed converter consists of eight semiconductor switches that are isolated through a transformer of high-frequency. In this paper, DAB dc-dc converter has been simulated and analyzed in MATLAB Simulink environment as an application of SST. Here, a single-phase shifting technique (SPS) has been used to minimize the large Dc link capacitor for obtaining a stable output voltage.