Publisher's Synopsis
The main functions of a motor controller are to start and stop the motor and to protect the motor, machine, and operator. The controller may also be called upon to provide other functions that could include reversing, jogging or inching, plugging, operation at various speeds or at reduced current levels, and controlling motor torque. The purpose of controller enclosures is to provide protection of operating personnel by preventing accidental contact with energized components. Motor control is a broad term that describes the general ability of a person to initiate and direct muscle function and voluntary movements. One of the most common electrical motor used in most applications which is known as induction motor. This motor is also called as asynchronous motor because it runs at a speed less than its synchronous speed. Synchronous speed is the speed of rotation of the magnetic field in a rotary machine and it depends upon the frequency and number poles of the machine. This volume comprised of nine chapters, starts with the applications of during the past decades, fuzzy logic control (FLC) has been one of the most active and fruitful areas for research in the application of fuzzy set theory. Control devices are components that govern the power delivered to an electrical load. Motor control systems make use of a wide variety of control devices. The motor control devices range from simple pushbutton switches to more complex solid-state sensors. The terms and practical applications presented in this volume illustrate how selection of a control device depends on the specific application. This volume illustrates modeling techniques and software simulation of the switched reluctance machine (SRM) machine models with controllers for efficient operation. In this volume, a novel root cause identification scheme of machining error based on statistical process control and fault diagnosis of machine tools is proposed. With the pattern recognition of control charts, quality fluctuations can be detected in a timely manner. Once the machining error occurs, the fault diagnosis of machine tools is carried out. The relationship between machine tool condition and work piece quality is established and the root cause identification of the machining error can be achieved. A case study of the machining of a complex welded box-type work piece is presented to illustrate the feasibility of the proposed scheme. Presenting various computationally efficient component- and system-level design optimization methods for advanced electrical machines and drive systems, this volume covers an exhaustive state-of the art review valuable for students and researchers.
