Shiv Narayan

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Nature inspired algorithms are among the most potent and robust algorithms for optimization for solving the real life problems. This paper introduces the Bat algorithm for the optimization based design of the PID controllers. The optimized PID controller has been implemented for liquid level control system which finds a wide application in petrochemical,(More)
Nature inspired algorithms are the most popular and robust algorithms for the optimization of the real world problems like pitch control of an aircraft system. This paper introduces Bat algorithm and Differential Evolution technique for the multi-objective optimization based designing of the fractional order PID (FOPID) and integer order PID controllers.(More)
The power system is a dynamic system and it is constantly being subjected to disturbances. It is important that these disturbances do not drive the system to unstable conditions. Due to certain disturbances, electromechanical oscillations of small frequency set up. The kind of stability involved due to oscillations falls under small signal stability. The(More)
Optimal tuning plays an important role in maintaining the product quality and process safety. In this paper robust speed control of an isolated steam turbine has been consummated by fractional order PID (FOPID) controller using multi-objective flower pollination algorithm (MOFPA). Steam turbine finds applications in refineries, where a hydraulic governor is(More)
Nature inspired algorithms are nowadays aiding in solving several complex multi-objective engineering problems. In this paper, robust pitch control of a flight control system has been designed using fractional order controllers. In order to obtain the optimal values of the controller gains & orders such that the system offers robust response, the mixed(More)
This paper qualitatively, compares MRAC and Modified MRAC scheme when the adaptation laws are designed using different approaches. The controller parameter adaptation laws are designed based on the MIT rule and Lyapunov theory. The effect of augmenting the system with PID has also been studied. The augmented system provided better responses.
The objective of the paper is to design the robust discrete H∞ controller for dc motor position control using Frequency-Domain Robust Controller Design Toolbox. In this paper, the time performance characteristics of 2 and 3 order controller has been compared by taking dc motor as a design example. The paper aims at demonstrating and simple modelling and(More)
This paper presents a design methodology for two degrees of freedom (2-DOF) observer based controller for the integral processes with dead time. The 2-DOF controller structure facilitates independent design for feedback properties and set point tracking. The feedback controller aims to achieve stability, robustness and disturbance attenuation whereas(More)