[PDF] Top 20 EVALUATING EFFICIENCY OF ELECTRIC DRIVES

... Output can be measured in terms of mechanical or electrical output depending upon the type of device used for measurements ,either it is brake, dynamometer or DC-machine. The dynamometer provides a flexible tool to motor ... See full document

... Abstract— This paper proposes a converter -inverter fed both induction motor and BLDC motor drives which can be used in hybrid electric vehicle or electric vehicle. The advantage of this PWM ... See full document

... – efficiency of the turning machine; P ct max – maximum power needed to perform cutting, distributed between both feed electric drive and spindle electric drive; P spt – power required only for the ... See full document

... high efficiency because they can switch at a much lower frequency than PWM-controlled ...large electric drives As the number increases the synchronized output waveform has more steps, which produces ... See full document

... 'hybrid electric vehicle' is a vehicle which relies not only on batteries but also on an internal combustion engine which drives a generator to provide the electricity and may also drive a ...that ... See full document

... directly drives sensory receptors is referred to as the ‘ proximal stimulus ’ , the actual or apparent source of such energy patterns is called the ‘ distal stimulus ’ (Palmer, ... See full document

... Abstract—A novel common-mode (CM) EMI active filter for dc- fed motor drives is proposed. The active filter performs both the compensation of the CM voltage at the motor input and the miti- gation of the leakage ... See full document

... The BLDC motor has a trapezoidal back EMF. BLDC motor has better efficiency, higher starting torque. Usually, a hall effect sensor is attached to the motor to sense the position of the rotor. But there are more ... See full document

... In this study, a three-phase, 1.2 KW, 380 volt, 50 Hz, 1400 rpm, four-pole induction motor is used to collect experimental data. The stator current signal is analyzed with the proposed fault detection scheme. The ... See full document

... propulsion, textile industries and in public transport TRAM(trolley) and metro. The control of DC motor is usually made of power electronic devices. DC motor drive is classified according to the type of the converter ... See full document

... The online parameter evaluation is essential for improved static and dynamic performance for drives in electric and hybrid vehicles. The methods for evaluating the online rotor resistance of ... See full document

... According to a US market study, limited range and function – something universally cited by automakers as the most serious barrier to the EV’s market success – is not such an obstacle after all. A key response in the ... See full document

... Effectively, this means that there is a narrow range of operation of a turbocharger/engine combination in which the system is capable of putting out significantly more power, with tails at either end where power is ... See full document

... increases, and, in a range of cases, the oscil- latory motion electric motor can loose its transient stability. The last manifests itself as the oscillation law breaking, and particularly, realization of ... See full document

... the electric motor / pump arrangement under a given operating ...(including electric motors, variable frequency drives and the pumps themselves) to provide an insight of ways of increasing the system ... See full document

... the electric power is not null in open circuit while for θ=π/2 rad the electric power in open circuit is ...the electric power in open circuit and the maximum electric power are de- creasing ... See full document

... of electric drive construction machinery and improve the research efficiency[10], this paper takes the D320E electric drive crawler bulldozer as an example to carry out the three- dimensional ... See full document

... precision drives of the machine-tool (the feeding mechanism with the tolerance up to several microns is used for build-up of elements with the tolerance of hundreds of microns), and high hardness, which is not ... See full document

... point as a function of torque demand) and demonstration in [6], the CA strategy minimizing the drivetrain power losses in traction employs a single wheel on each side of the vehicle when the respective torque demand, , ... See full document

... independently. Evaluating the efficiency of regional railways is an important issue in Iran and is one of the bases for budget and resource allocation for further developments of regional ...the ... See full document