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Sensorless Speed Control of PMSM Motor for Wide Speed Range
2021 1st International Conference on Power Electronics and Energy (ICPEE), 2021This paper compares the sensorless vector control techniques of Permanent Magnet Synchronous Motors (PMSM). Sliding mode observer (SMO) and Model reference adaptive system (MRAS) are compared. SMO are known for their robust nature. The SMO is traditionally used for sensorless control.
Pratyush Kumar Dwivedi +2 more
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Electrical Drives for Wide Speed Ranges
Transactions of the American Institute of Electrical Engineers, 1942THE electrical drive for a wide speed range is obtained by the addition of a rotating regulator called a Rototrol to a conventional variable voltage system. This combination will give a speed range of 120 to 1 or more, and can be used effectively in many industries to simplify the mechanical design of the machine which it drives.
G. A. Caldwell, W. H. Formhals
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IEEE Transactions on Industry and General Applications, 1970
The literature has documented well the characteristics of many different types of inverter circuits. One such circuit is described in detail. A brief theory of operation is given, together with the reasons for choosing this particular circuit and some of the advantages and disadvantages accruing to its use.
Edgar F. Chandler, F. N. Peters
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The literature has documented well the characteristics of many different types of inverter circuits. One such circuit is described in detail. A brief theory of operation is given, together with the reasons for choosing this particular circuit and some of the advantages and disadvantages accruing to its use.
Edgar F. Chandler, F. N. Peters
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A wide-range adjustable-speed drive
Electrical Engineering, 1949This paper describes the theory and characteristics of a drive which provides a wide range of adjustable speeds. The ratio of the maximum to minimum useful speeds attainable is approximately 20-to-1. The system provides high starting-torque, relatively high efficiencies and rapid deceleration through regenerative braking.
A. G. Conrad, E. R. Tribken
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Wide-speed-range A-C electric system for aircraft
Electrical Engineering, 1950THE USE of variable-frequency a-c generating systems on aircraft has increased greatly in the last few years. One excitation scheme for these generating systems consists of a d-c generator exciter, built integrally with the alternator, which is controlled by a carbon-pile voltage regulator.
H. B. James +2 more
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Wide-range speed control of industrial brushless servomotors
2009 Chinese Control and Decision Conference, 2009Considering the performance and cost, the position and wide-range speed control of a servo control system generally adopted an incremental encoder. The so-called M method, based on averaged calculation of encoder pulses, generally results in detection lag during speed estimation. It would be much worse when the interval between the pulses is wider than
Ming-Shyan Wang +2 more
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An improved wide-range adjustable-speed drive
Electrical Engineering, 1954An adjustable-speed drive using a d-c series generator supplying a d-c series motor is described. It operates well at speeds under 10 rpm as well as at speeds limited only by mechanical considerations. The ratio of maximum to minimum speed is in the order of 100 to 1.
A. G. Conrad, A. R. Perrins, R. R. Shank
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A CMOS high-speed wide-range programmable counter
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 2002A CMOS high speed wide-range programmable divide-by-N counter was designed and the performance was verified by SPICE simulations and the measurements on the fabricated chip. A new reloading scheme and the use of simplified circuits for three least significant bit flip-flops enabled the high-speed operation of the proposed counter, independently of the ...
Lee, SH, Park, HJ
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Flux estimation in DTC for wide speed range
2016 IEEE Power and Energy Society General Meeting (PESGM), 2016The focus of this work is to compare the different flux estimators in an induction motor(IM) direct torque control system (DTC) for wide speed operation. The back electromotive force (EMF) has to be integrated to estimate the stator flux linkage. The error in the stator flux linkage is due to the initial condition and DC offset in the acquired feedback
C.Upendra Reddy +3 more
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Extremely wide speed range measurement system
Review of Scientific Instruments, 2002The speed measurement system is based on an advanced single buffered method utilizing both the pulse counting and the period measurement. The extremely wide speed range from 5×10−5 to 1830 rpm is independent of the sampling time, chosen between 100 μs and 22 ms.
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