The electric current is omnipresent and indispensable in our life. But there are always threatening dangers connected with it. One of them is the electric short circuit and we have to protect people and facilities from its effects. This protection is often provided by power circuit breakers or motor protective circuit breakers. These devices are able to detect the short circuit, limit the curre...

Electric power is mainly derived from a combination of an engine and a motor. The motor converts electrical power into mechanical energy, which is widely used in home appliances and industrial mechanical tools. When addressing specific applications, motor-driven tools generally need to make speed changes or have accurate positioning. In these applications, it is necessary to have a highly effic...

Design of electrical motors normally involves two main stages: i) Preparation of the main dimensions and parameters. ii) Prediction of the performance. At the first stage the main dimensions of the motor, core stack Lfe and stator outer diameter Do, must be chosen. A set of performance conditions such as breakdown torque, desired output and other important parameters must satisfy the internatio...

In electricfish ofthe mormyridfamily, an efference copy is present in the brain region that receives afferent input from ampullary electroreceptors. The efference copy is elicited by the motor command tofire the electric organ. Its effect is always opposite that of ampullary afferents responding to the electric organ discharge, and it changes to match variations in this afferent input. It proba...

In 2001, Power Electronics and Electric Machines program was fully developed in electrical and computer engineering department at Cleveland State University. To support newly developed curriculum, state of the art Power Electronics and Electric Machines Laboratory has been established. This effort has been supported by National Science Foundation (award # 0410912), Nasa Glen Research Center and...

1. Introduction There is a growing demand for power semiconductors applied to motor drive inverters for electric vehicles (EVs) and hybrid electric vehicles (HEVs). Based on the results of the development and mass production of automotive power semiconductors, which require very high reliability and functionality, Mitsubishi Electric has developed the J-Series Intelligent Power Modules (IPMs) a...

All-Electric power and propulsion system architectures have been investigated in order to demonstrate the feasibility of such an approach to increase the endurance of a high altitude long endurance UAV to a target mission duration of 1 week. System modelling studies demonstrate the possibility of utilising combined fuel cell and photo-voltaic systems as power sources for an electric distributio...

This paper presents an efficient and robust control scheme of Fuzzy Logic Electronic Differential Controller (FLEDC) for sensorless drive based electric vehicle. The proposed system consists of two Brushless DC motors (BLDC) that ensure the drive of the two back driving wheels of an electric vehicle. Electronic differential controller (EDC) ensures the maximum torque and it can control both the...

Electric Vehicles (EVs) are continuing to grow their share of total vehicle sales as consumers, companies, and governments prioritize automotive electrification. Types EVs include hybrid electric, plug-in battery fuel cell vehicles. Today, commonly use an ac permanent magnet or induction motor. A traction inverter is a critical drivetrain element required convert the dc current available from p...

Piezo-electric ultrasonic actuators offer large static torque and precise rotary motion while avoiding self-motion when un-powered. In this work, a U164-11 ultrasonic piezo-electric module driving an Al2O3 ceramic ring is controlled by a Xilinx Spartan 6 FPGA to implement a haptic feedback system. The controller supports a runtime-adjustable capture detent resolution to enable the input of disc...