continuous stirred tank reactor (cstr) has particular importance in chemical industry. cstr has usually a nonlinear behavior which makes it difficult to control. the reactor has two parameters: the concentration and temperature of mixture both of which are uncertain. this case of cstr has large disturbance in domain. in order for disturbance rejection, a controller has to be designed. in this p...

Continuous Stirred Tank Reactor (CSTR) has particular importance in chemical industry. CSTR has usually a nonlinear behavior which makes it difficult to control. The reactor has two parameters: the concentration and temperature of mixture both of which are uncertain. This case of CSTR has large disturbance in domain. In order for disturbance rejection, a controller has to be designed. In this p...

Induction motors (IMs) are widely used in many industrial applications due to their robustness, low cost, simplicity and relative good efficiency. One of the major considerations for IMs is their speed control. PI (proportional-integrator) controllers are usually used as speed controller. Adjusting the gain of PI controller is time-consuming which needs thorough considerations. Hence, fuzzy con...

Low-frequency oscillations have been reported in several weak-grids-connected voltage-source-converter(VSC) systems. Although efforts devoted to understanding the parametric and sensitivity impact of VSC controller gains, a general formulation oscillation mechanism is still missing. Using transfer function dynamic modelling approach, we find that outer loop active power control's bandwidth main...

This paper presents the modified integrator which we can use in the controlling scheme of an induction motor (IM). The modification tends to some advancement in direct torque control of induction motor. The undesirable variations which occur in the form of offset, gain error, etc can be eliminate by means of the involvement of the new integrator in the direct torque and flux control (DTFC) meth...

Symplectic integrators are extensively used for single particle tracking in accelerators. A symplectic integrator scheme, which involves only positive steps, for perturbed Hamiltonians of the form H = A + B, where both A and B are integrable, was proposed [1], and all order of such integrators were derived [2]. A particular member of the family, namely the SABA2 integrator has already proved to...

This paper describes the design and evaluation of a robust integrator for software-implemented control systems. The integrator is constructed as a generic component in the Simulink design tool, and can thus be used for robust implementation of a wide range of control algorithms. The integrator is designed to support the failbounded failure model for transient bit-flips that may occur in the CPU...

This article explores design and analysis of proportional integrator (PI) along with Fuzzy Logic controller (FLC) based Shunt active power line conditioners (APLC) for compensating reactive power and harmonic currents drawn by the load. The aim is to study different control strategies for real time compensating current harmonics at different power conditions. The compensation process is based o...

This paper is concerned with control of nonholonomic systems. As is well known, symmetric affine system is unable to control with continuous time-invariant state feedback. In this paper we apply PI Control to a setpoint servo problem for the symmetric affine system. PI control possesses two adjustable parameters KP , KI , and in addition the so-called manual reset quantity m0. It is remarked th...