2004 23rd IEEE Convention of Electrical and Electronics Engineers in Israel, 2004
The paper proposes a method to detect and control the speed and the position of a BLDC motor with... more The paper proposes a method to detect and control the speed and the position of a BLDC motor with a low resolution position encoder in very low speeds of several rad/sec. The low resolution encoder could be the Hall effect sensor that has a resolution of 60 electrical degrees maximum, according to the pole number of the motor. The proposed
Th~k section is intended prhwily for rapid diweminotion of bricf reports on NW rcjcmch results m ... more Th~k section is intended prhwily for rapid diweminotion of bricf reports on NW rcjcmch results m technical o r a of interest to IEEE members, Contributiom are reviewed immediateb, and acceptance is drtermined by timeliness and importance of the subject, and brevity and ckvity of the presentation Research letters muct contain a clear concire statemnt of the problem studied identiiy new results, and m a k evident their utility, importance, or rebance to e k c M engineering. Key rejierences to reloled literature m u t be given Contributionr should be submitted in t r i p k t e to the Ediror. PRC+ The length should be limited to fwe double-spaced typewritten pages, countmg each ilktrotion m o page. An abstract of 50 wordr or less and the original figures should be inch&d Imtnutionr covering abbreviations, the form for rejierences, general style, and preparmion of figures are found m "Information for IEEE Authors," available on reguest from the IEEE Pubhhmg Services Departmnt. Authors are im vited to suggest the categories in the table of contents u d e r which thew letters best fu. After o letter Ilpp been accepted, the author's company or institution will be requested to pay a voluntnry c h g e of 695 per p&ed poge, calculated to the nearest whole poge and with o 595 minimum to cover part of the cost of publication
2008 18th International Conference on Electrical Machines, 2008
The paper presents simulation results about thyristor operation of a mains connected induction ma... more The paper presents simulation results about thyristor operation of a mains connected induction machine, both as a motor and as a generator. The results were obtained by three different simulation packages, Simulink, Psim and Plecs. The cosimulation options between these programs were checked. The performances of these three packages were compared. The simulation results were validated by real experiments.
direct measurement will be 83.33 percent. To use the new technique, we need to make three measure... more direct measurement will be 83.33 percent. To use the new technique, we need to make three measurements-one across each resistor and another across the voltage source. Using (14), the actual voltage across one of the resistors is calculated as = the voltage measured across it * voltage of the source/(sum of the voltages measured across each resistor). V. CONCLUSION A multiple measurement method was developed which eliminates the effect of finiteness of voltmeter impedance in dc voltage measurement in a class of linear passive networks. The conditions of applicability viz. the existence of an accessible, nonisolated, near-ideal, nonzero voltage source in the network is satisfied by many such practical networks. The technique, therefore, has good scope for wide practical application.
A resonant inverter in a feedback mode of operation behaving as a limit-cycle oscillator similar ... more A resonant inverter in a feedback mode of operation behaving as a limit-cycle oscillator similar to the Rayleigh and Van der Pol oscillators is discussed. The mathematical representation of the inverter is also closely similar to that of the latter oscillators. This enables an illustrative phenomenological treatment of the inverter dynamic features and assists with the supportive numerical simulation.
effect, magnetoacoustic emission, magnetic hysteresis, residual field and magnetically induced ve... more effect, magnetoacoustic emission, magnetic hysteresis, residual field and magnetically induced velocity change methods that have appeared to data.
2004 23rd IEEE Convention of Electrical and Electronics Engineers in Israel, 2004
The paper proposes a method to detect and control the speed and the position of a BLDC motor with... more The paper proposes a method to detect and control the speed and the position of a BLDC motor with a low resolution position encoder in very low speeds of several rad/sec. The low resolution encoder could be the Hall effect sensor that has a resolution of 60 electrical degrees maximum, according to the pole number of the motor. The proposed
Th~k section is intended prhwily for rapid diweminotion of bricf reports on NW rcjcmch results m ... more Th~k section is intended prhwily for rapid diweminotion of bricf reports on NW rcjcmch results m technical o r a of interest to IEEE members, Contributiom are reviewed immediateb, and acceptance is drtermined by timeliness and importance of the subject, and brevity and ckvity of the presentation Research letters muct contain a clear concire statemnt of the problem studied identiiy new results, and m a k evident their utility, importance, or rebance to e k c M engineering. Key rejierences to reloled literature m u t be given Contributionr should be submitted in t r i p k t e to the Ediror. PRC+ The length should be limited to fwe double-spaced typewritten pages, countmg each ilktrotion m o page. An abstract of 50 wordr or less and the original figures should be inch&d Imtnutionr covering abbreviations, the form for rejierences, general style, and preparmion of figures are found m "Information for IEEE Authors," available on reguest from the IEEE Pubhhmg Services Departmnt. Authors are im vited to suggest the categories in the table of contents u d e r which thew letters best fu. After o letter Ilpp been accepted, the author's company or institution will be requested to pay a voluntnry c h g e of 695 per p&ed poge, calculated to the nearest whole poge and with o 595 minimum to cover part of the cost of publication
2008 18th International Conference on Electrical Machines, 2008
The paper presents simulation results about thyristor operation of a mains connected induction ma... more The paper presents simulation results about thyristor operation of a mains connected induction machine, both as a motor and as a generator. The results were obtained by three different simulation packages, Simulink, Psim and Plecs. The cosimulation options between these programs were checked. The performances of these three packages were compared. The simulation results were validated by real experiments.
direct measurement will be 83.33 percent. To use the new technique, we need to make three measure... more direct measurement will be 83.33 percent. To use the new technique, we need to make three measurements-one across each resistor and another across the voltage source. Using (14), the actual voltage across one of the resistors is calculated as = the voltage measured across it * voltage of the source/(sum of the voltages measured across each resistor). V. CONCLUSION A multiple measurement method was developed which eliminates the effect of finiteness of voltmeter impedance in dc voltage measurement in a class of linear passive networks. The conditions of applicability viz. the existence of an accessible, nonisolated, near-ideal, nonzero voltage source in the network is satisfied by many such practical networks. The technique, therefore, has good scope for wide practical application.
A resonant inverter in a feedback mode of operation behaving as a limit-cycle oscillator similar ... more A resonant inverter in a feedback mode of operation behaving as a limit-cycle oscillator similar to the Rayleigh and Van der Pol oscillators is discussed. The mathematical representation of the inverter is also closely similar to that of the latter oscillators. This enables an illustrative phenomenological treatment of the inverter dynamic features and assists with the supportive numerical simulation.
effect, magnetoacoustic emission, magnetic hysteresis, residual field and magnetically induced ve... more effect, magnetoacoustic emission, magnetic hysteresis, residual field and magnetically induced velocity change methods that have appeared to data.
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Papers by R. Rabinovici