Conference Papers
Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506
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Item Real-time simulation of synchronous generator and its controllers on RTAI-Linux platform(2013) Latha, A.H.; Shubhanga, K.N.This paper presents a real-time simulation of a synchronous generator using real-time application interface (RTAI) on Linux. Different generator controllers such as exciter and power system stabilizer are also included in the real-time simulation. The Forward Euler method with a suitable step-size has been employed for obtaining the solution of differential equations after justifying its applicability through illustrative examples. Various disturbance conditions are demonstrated to bring out most of the rotor-angle stability issues in a SMIB system. Using a peripheral component interconnect (PCI) card, the real-time simulation results are captured on an oscilloscope and are validated using off-line MATLAB simulations. Such a setup offers a very useful laboratory tool for carrying out the hardware-in-the-loop tests. © 2013 IEEE.Item Hardware-In-The-Loop testing of PSS for synchronous generator(Institute of Electrical and Electronics Engineers Inc., 2014) Latha, A.H.; Shubhanga, K.N.This paper presents the Hardware-In-The-Loop type simulation, where an analog power system stabilizer (PSS) is connected in closed loop with a real-time virtual synchronous generator. The synchronous generator along with its excitation controller is simulated in real-time using Real-Time Application Interface (RTAI) on Linux. Forward Euler numerical integration technique with a suitable step-size has been employed for obtaining the solution of the generator model differential equations. The PSS hardware is interfaced with the virtual synchronous generator using a peripheral component interconnect (PCI) card and the simulation results are captured on the oscilloscope. The real-time simulations are also validated using off-line MATLAB simulations. This setup demonstrates different aspects of realtime simulation and a laboratory-oriented Hardware-In-The-Loop simulation. © 2014 IEEE.Item A toy model to understand subsynchronous resonance and real-time simulation of the model using RTAI-Linux(Institute of Electrical and Electronics Engineers Inc., 2016) Kotian, S.M.; Latha, A.H.; Shubhanga, K.N.This paper presents a toy- model to demonstrate the concepts of torsional interactions that occur during the subsynchronous resonance (SSR) problem in power systems.The content of the paper evolves as a tutorial and motivates a novice to take up SSR studies on relatively complex systems such as the IEEE first and second benchmark systems which contain many intricate modal interactions. To show the utility of the model and to impart a realistic touch in the lab environment the complete system is simulated in real-time using real-time application interface (RTAI)-enabled Linux platform. Using a peripheral component interconnect (PCI) card, the real-time simulation results are captured on an oscilloscope and are validated using off-line MATLAB simulations. © 2015 IEEE.