– World wide drilling is developing for oil, gas or water resources. Electric motors power 75% of the total drilling rigs installation, augmenting to 95% for the case of Romania. Monitoring diesel generators micro-power station and motors of the rig is the second important thing to do and complete the main task of drilling process monitoring. This paper describe a monitoring and control system ...

This paper shows how electricity is used by electric motors in both the industrial and the services’ sectors in the European Union, as well as the potential electricity savings by the year 2015 with the application of Energy-Efficient Motors and Variable Speed Drives. Additionally, the main barriers identified in the field characterization study and the measures to overcome those barriers are p...

Modern manufacturing systems are automated machines that perform the required tasks. The electric motors are perhaps the most widely used energy converters in the modern machine-tools and robots. These motors require automatic control of their main parameters (position, speed, acceleration, currents). With the help of an example, a DC motor system, the use of MATLAB/Simulink for comprehensive s...

High-speed permanent magnet synchronous machines are of great interest in the applications where high utilization factor and e ciency are required. Depending on application, power requirements change from kilowatts to megawatts. To investigate power limits of high-speed machines, the present feasibility study focuses on a 20 megawatt (MW) electric drive for marine propulsion. However, in additi...

In the last decade, a number of research works in electrified vehicles have been devoted to analysis electric consumption battery and evaluation main influencing factors. The literature reveals that motor size, efficiency, driving condition substantially affect energy stored vehicle battery. This paper studies degree sensitivity size its efficiency map characteristics. order accomplish this tas...

Electric motors used for traction purposes in electric vehicles (EVs) must meet several requirements, including high efficiency, high power density and faulttolerance. Among them, permanent magnet synchronous motors (PMSMs) highlight. Especially, five-phase axial flux permanent magnet (AFPM) synchronous motors are particularly suitable for in-wheel applications with enhanced fault-tolerant capa...

This paper describes the design and implementation of an experimental electric power system to replace a gasoline system of a 30-feet unmanned autonomous blimp. The project was motivated by limitations and inefficiencies of the gasoline system. Autonomous flight requires extended duration flight and maneuvering capabilities that can be realized with an electric power system. In order to fully e...

This master thesis deals with the design of an permanent magnet (PM) motor for electric vehicles. An analytical model for surface mounted PM-motors (SMPM) is derived and verified with finite element analysis (FEM). Special attention is paid to the iron losses as they influence the performances. Today's motors for traction in electric vehicles are most often induction motors. In recent years, PM...