Conference Papers

Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506

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Author: search.filters.author.Girisha Navada, H.

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    Position control of Interior Permanent Magnet Synchronous Motor using Adaptive Backstepping technique
    (IEEE Computer Society, 2013) Prashanth, K.V.; Girisha Navada, H.
    This paper mainly presents a novel method for developing control algorithm for position control of Interior Permanent Magnet Synchronous Motor (IPMSM) for servo drive applications. Adaptive Backstepping technique is used to build the control laws. The control technique incorporates the uncertainties occurring from variable side as well as from the parameter side. Stability of the controller is verified using Lyapunov Stability Theory and it found to be asymptotically stable. Simulation of the proposed control technique has been carried out using MATLAB/Simulink software. © 2013 IEEE.
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    Parameter estimation of PMSM using adaptive backstepping technique
    (IEEE Computer Society, 2014) Prashanth, K.V.; Girisha Navada, H.
    Estimation of unknown parameters in non-linear systems is a very crucial part in the adaptive control. In this paper an adaptive backstepping procedure is discussed for the estimation of parameters of Permanent Magnet Synchronous Motor drive(PMSM) viz. variation of d-q axis inductances and load torque. Also, a non-linear control scheme using adaptive backstepping technique for speed control of PMSM drive is presented. Stability of the system is ensured by Lyapunov stability theory. Simulation of speed controlled PMSM drive along with the control technique is carried out using MATLAB/Simulink software. The system is simulated for different operating conditions like variation in load and reference speed. © 2014 IEEE.
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    Modelling of a solar photovoltaic power plant for power system studies
    (Institute of Electrical and Electronics Engineers Inc., 2017) Girisha Navada, H.; Singh, S.V.; Shubhanga, K.N.
    In this paper, given the desired peak power requirement of the solar photovoltaics (SPV) power plant, computation of parameters of mathematical model of the SPV module along with aggregation parameters are considered. The SPV module model parameters are estimated by adjusting it to nonlinear current-voltage(I-V) equation at the three notable points on the I-V curve, which are provided by all commercial PV array data sheets. An appropriate process is evolved for estimating the number of SPV modules required for a given power specification, using constraints on converter voltage ratings. Various test cases are illustrated to appreciate aggregation process of SPV modules to form SPV power plant. The results presented form a basic step in power system analysis with SPV integration. © 2017 IEEE.
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    Analysis of a laboratory scale three-phase FC-TCR-based static VAr compensator
    (Institute of Electrical and Electronics Engineers Inc., 2017) Gajanana Abhyankar, B.; Shubhanga, K.N.; Girisha Navada, H.
    This paper presents the design and steady-state analysis of a Fixed Capacitor-Thyristor Controlled Reactor (FC-TCR)-based Static VAr Compensator (SVC). Reactive power compensation is demonstrated through the fundamental frequency analysis of the samples acquired from the designed system. The performance of the SVC in the presence of line reactance is also discussed. National Instrument (NI) based data acquisition system is used to perform the steady-state analysis. Besides, a few transient responses are also captured using the data acquisition system. © 2017 IEEE.