Proportional Integral Derivative (PID) Controller is a primary component in industrial control systems nowadays. Its gain parameters have a powerful effect on its transient response criteria such as integral squared error (ISE), settling time, rise time and overshooting. Tuning gain parameters of PID to reach the optimal transient response of control systems is a hard problem. The standard meth...

This paper proposes a swarm intelligence method that yields optimal Proportional-Integral-Derivative (PID) Controller parameters of a power system stabilizer (PSS) in a single machine infinite bus system. The proposed method utilizes the Particle Swarm Optimization (PSO) algorithm approach to generate the optimal tuning parameters. The paper is modeled in the MATLAB Simulink Environment to anal...

Accurate control of engine speed can effectively improve fuel economy and comfort. Currently, the commonly used PID parameter setting methods for include Ziegler-Nichols method gradient method, etc. Although they have good performance in setting, still shortcomings such as slow response to process long stability time. In this paper, tuna swarm optimization is adjust parameters, optimized result...

An attitude control strategy based on Ziegler-Nichols rules for tuning PD (proportional-derivative) parameters of quadrotor helicopters is presented to solve the problem that quadrotor tends to be instable. This problem is caused by the narrow definition domain of attitude angles of quadrotor helicopters. The proposed controller is nonlinear and consists of a linear part and a nonlinear part. T...

Syphilis is a chronic infection with early relapses that are hypothesized to result from the emergence of phenotypic variants of Treponema pallidum. Recent studies demonstrated that TprK, a target of protective immunity, is heterogeneous in several T. pallidum strains, but not in Nichols strain Seattle (A. Centurion-Lara, C. Godornes, C. Castro, W. C. Van Voorhis, and S. A. Lukehart, Infect. Im...