The advantages/disadvantages of energy storage devices, which can provide nonpolluting automobile systems are discussed. Four types of storage devices are identified: electro-chemical (batteries) hydrogen electro-mechanical (flywheels) Molten salt heat storage A high speed flywheel with a small permanent magnet motor/generator has more advantages than any of the other systems and might become a...

In this study, the performance analysis of a 5.5 kW, 460 V, 60 Hz, 4-pole, and 3-phase squirrel- cage induction motor (IM) has been carried out by developing portable electronic circuit, design, software, independent any commercial software. The mathematical equations used in design steps preliminary main dimensions squirrel IM are realized with developed circuit. To perform calculations Nextio...

This paper presents a method for determining the load capacity of three-phase squirrel-cage induction motors supplied with balanced distorted voltage containing rotating harmonics (1st, 5th, 7th, 11th, 13th,...). The is based on dependence motor power losses in rotor cage. was determined short-circuit measurements made frequencies equal to harmonic frequencies. To evaluate capacity, factor prop...

Induction machines are perhaps the most widely used of all electric motors. They are generally simple to build and rugged, offer reasonable asynchronous performance: a manageable torque-speed curve, stable operation under load, and generally satisfactory efficiency. Because they are so widely used, they are worth understanding. In addition to their current economic importance, induction motors ...

This paper proposes coordinated design of wide-area damping controller (WADC) in the presence renewable energy resources a large-scale power system. To tackle with constant and time-varying delays system, robust criterion based on H∞ has been used for WADC design. By using an auxiliary function Lyapunov function, conservatism linear inequality matrix (LMI) is reduced, such that larger delay mar...

The design and implementation of a new control system for reactive power compensation and mechanical torque, voltage regulation and transient stability enhancement for wind turbines equipped with fixed-speed induction generators (IGs) in power systems is presented in this study. The designed optimal linear quadratic regulator (LQR) controller provides an acceptable post fault performance for bo...

Recently, there has been a rise in the integration of renewable energy sources into power grids. As result this, is need to carry out new studies order understand dynamics grids during disturbances that mainly caused by stochastic nature wind energy. The operation modern are tied farms follows stipulated grid requirement or codes, considering allowable threshold frequency variation dynamics. Th...

Broken rotor bars and end-ring are common faults in three-phase squirrel-cage induction motors. These faults reduce the developed toque and increase the speed fluctuations of the motor. Meanwhile, developed unsymmetrical magnetic generates noise and vibration in the motor. Local heat around the broken bars may gradually break the adjacent bars and the motor will be finally out of service. Finit...

Induction motors are becoming familiar these days and is being employed in most of the industrial processes. This “Analyzing And Detection Of Rotor Faults In Squirrel Cage Induction Motor Drives Using Matlab” presents a simulation of detecting the rotor faults such as broken rotor bars or end rings in squirrel cage induction motor drives. It enables detection of those faults, which may arise du...

Three phase induction machines for traction applications in electric and hybrid electric vehicles can be used with a fixed gear due to the wide speed range enabled by field weakening. Although the induction machine is know as an extremely reliable and robust device, machine faults may occur. Machine faults which do not become detected may cause complete failure of the vehicle. Therefore, early ...