Speed Detector

Speed Detector: One important factor in the closed loop control of variable speed drives em­ploying solid state converters is the Speed Detector. In the dedicated hardware control using analog components,…

Continue Reading Speed Detector

Symmetrical Optimum

Symmetrical Optimum: Symmetrical Optimum - Sometimes automatic control systems contain integrating also besides first order delay elements, proportional elements and deadzones. Such a system when compensated on the basis of magnitude…

Continue Reading Symmetrical Optimum

Controller Transfer Function

Controller Transfer Function: While a Controller Transfer Function is designed to improve the behavior of a given control system in practice it is very difficult to realize such a controller…

Continue Reading Controller Transfer Function

Magnitude Optimum

Magnitude Optimum: The design of a controller based on the principle Magnitude Optimum that it allows all the fre­quencies to pass through in a similar way for a simple system is…

Continue Reading Magnitude Optimum

Nyquist Criterion

Nyquist Criterion: Nyquist Criterion - This stability criterion enables one to establish the stability of a system using a graphical procedure in the frequency domain. Here also there is no…

Continue Reading Nyquist Criterion

Introduction Control Techniques in Electric Drives

Introduction Control Techniques in Electric Drives: An electric drive is a well established industrial drive as it has several ad­vantages and special features. Its Control Techniques consists in starting, speed…

Continue Reading Introduction Control Techniques in Electric Drives