variable-speed DC drives
Novel Recuperation Capability for Variable Speed Drives
... the DC current is constant, the above mentioned current blocks in ...the DC link is held constant, the DC link current has an additional content, which compensates the ripple of the DC link ...
6
Cascaded Control System of the Modular Multilevel Converter for Feeding Variable Speed Drives
... As shown in Fig 3, by the corresponding voltages uLα , uLβ , anduL0 each control loop incorporates the impedances (L, R) of the arms, in which the current components have to be controlled, The three current control ...
8
Wireless Control of PMDC Motors, Through Variable Speed Drives
... Generally a process control system consists of two major components; viz. controlled variables and manipulated variables. The controlled variables are physical quantities to be measured like temperature, flow, humidity; ...
5
Speed control of separately excited DC motor using artificial intelligent approach
... The DC motor is the obvious proving ground for advanced control algorithms in electric drives due to the stable and straight forward characteristics associated with ...the DC motor can be considered ...
36
The new flux switching motor : a DC motor without brushes
... Pollock, "The Design and Performance of a Self-Starting Switched Reluctance Drive", IEE Conference on Power Electronics and Variable Speed Drives, September 1996, pp.. Chan, "Single Phas[r] ...
302
Control System for BLDC Motor using Back EMF Method
... Brushless DC motor is the mechanical commutation configuration constituted by commutator and brushes are replaced by electronic commutation ...higher speed range; hence BLDC motors are use for large number ...
6
Programmable logic controller based variable speed drives for educational trainer
... The first objective is to setup the experiment of variable speed drive (VSD) to control a motor. The experimental setup is based on the lab procedures [1] that come with the Universal motor in the Power ...
40
Modelling and Simulation of Variable Speed Squirrel Cage Induction Motor Drives
... Variable speed controls of AC electrical machines make use by force-commutated electronic switches such as IGBTs, MOSFETs, and ...the DC motors and thyristor ...in speed and torque control as ...
9
An extended induction motor model for investigation of faulted machines and fault tolerant variable speed drives
... available DC link voltage of the inverter during faulty operation is similar to that produced by a healthy ...same speed and torque ranges as those observed before the ...the speed and torque ranges ...
281
ADJUSTABLE SPEED CONTROL OF INDUCTIONMOTOR USING VARIABLE FREQUENCY DRIVES
... the DC current from rectifier on & off to produce a current or voltage waveform at the required new ...switch DC voltage at high speed, producing a series of short width pulses of constant ...
12
Photovoltaic Systems with Cascaded Modular Multilevel Converters for Feeding Variable-Speed Drives
... as dc–3ac configuration for high-voltage dc power ...electrical drives in the range of medium voltage was proposed in [2] and ...for variable-speed drives, was first solved in ...
5
A hybrid modular multilevel converter for medium-voltage variable-speed motor drives
... medium-voltage variable-speed motor drives have been widely applied in the industries like compressors, pumps, fans, conveyors, grinding mills, rolling mills, marine propulsion, and rail tractions, ...
11
Analysis of 5 Level Boost AC-DC Converter Applied to High Speed Drives
... high speed electric drive is implemented for exhaust gas recovery ...Electric drives offer an opportunity for efficient use of natural resources, clean and (comparatively) quiet power conversion, improved ...
9
Analysis of Variable Frequency Three Phase Induction Motor Drive
... motor drives are widely used to control the speed of conveyor systems, blower speeds, pump speeds, machine tool speeds, and other applications that require variable speed with variable ...
5
A Variable Speed Sensorless Induction Motor Drive Using DC Link Measurements
... from DC link ...excited dc motor brought renaissance in the high performance of control of ac ...of dc machine like performance vector control is also known as “decoupling” orthogonal or trans vector ...
10
Detection and Diagnosis of Compound Faults in Induction Motors Using Electric Signals from Variable Speed Drives
... at speed 1420 rpm (two-pole pairs), as shown in Fig.2. A digital variable speed drive is employed to control the motor ...system speed based on the built-in Model Reference Adaptive System ...
8
An enhanced dq based vector control system for modular multilevel converters feeding variable speed drives
... whole speed range, including zero-speed crossing operation, the rotational speed profile shown in ...the dc input current to facilitate the regulation of v ∆ C0 (see ...
10
Automatic Motor Detection and Control System (A.M.D.A.C.S.)
... motor drives are widely used to control the speed of conveyor systems, blower speeds, pump speeds, machine tool speeds, and other applications that require variable speed with variable ...
6
Study and Control of a Variable Speed Wind Turbine with a Permanent Magnet Synchronous Generator
... An ideal functioning of the wind system requires a perfect follow-up of this curve. To approach of this goal, a specific control known by the terminology: Maximum Power Point Tracking (MPPT) must be used. The strategy ...
5
Detection and Diagnosis of Motor Stator Faults using Electric Signals from Variable Speed Drives
... Different speed control schemes are offered in the ...precise speed control or/and full torque at high speeds is not required; while on the other hand closed-loop schemes with speed feedback ...
7