Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2010076669) DETERMINING INITIAL ROTOR POSITION OF AN ALTERNATING CURRENT MOTOR
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/076669 International Application No.: PCT/IB2009/050013
Publication Date: 08.07.2010 International Filing Date: 05.01.2009
IPC:
H02P 6/18 (2006.01) ,H02P 21/14 (2006.01)
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
P
CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS OR REACTORS OR CHOKE COILS
6
Arrangements for controlling synchronous motors or other dynamo-electric motors with electronic commutators in dependence on the rotor position; Electronic commutators therefor
14
Electronic commutators
16
Circuit arrangements for detecting position
18
without separate position detecting element, e.g. using back-emf in windings
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
P
CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS OR REACTORS OR CHOKE COILS
21
Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
14
Estimation or adaptation of machine parameters, e.g. rotor time constant, flux, speed, current or voltage
Applicants:
FREESCALE SEMICONDUCTOR, INC. [US/US]; 6501 William Cannon Drive West Austin, Texas 78735, US (AllExceptUS)
BALAZOVIC, Peter [SK/CZ]; CZ (UsOnly)
FILKA, Roman [SK/CZ]; CZ (UsOnly)
Inventors:
BALAZOVIC, Peter; CZ
FILKA, Roman; CZ
Priority Data:
Title (EN) DETERMINING INITIAL ROTOR POSITION OF AN ALTERNATING CURRENT MOTOR
(FR) DÉTERMINATION DE POSITION INITIALE DE ROTOR D'UN MOTEUR À COURANT ALTERNATIF
Abstract:
(EN) Determination of an estimated initial angular position of the rotor of an AC motor includes application of voltages corresponding to a high frequency reference signal vector (u*∝β_HF) to the stator windings (106) of the motor and production of an estimated initial angular position θAXIS, θINIT of the rotor as a function of the resulting q-axis stator current component iq_HF, adjustment of transformation of signal vectors from stationary to rotating coordinates and vice versa using the estimated angular position θAXIS, θINIT, and production of an adjusted estimated angular position θAXIS, θINIT of the rotor as a function of the q-axis stator current component iq_HF as adjusted. Determination of an initial estimated angular position θAXIS, θINIT of the rotor and production of an adjusted initial estimated angular position θAXIS, θINIT of the rotor is performed with the rotor (104) at standstill and before initially applying voltage corresponding to the drive signal vector u*∝β to the stator windings (106), and production of an initial value of a drive signal vector command u*∝β in stationary coordinates uses the adjusted estimated angular position. Determination of an estimated angular position of the rotor after application of stator current may use a different method, such as a physical relative position sensor.
(FR) L'invention porte sur la détermination d'une position angulaire initiale estimée du rotor d'un moteur à courant alternatif qui comprend l'application de tensions correspondant à un vecteur de signal de référence haute fréquence (u*αβ_HF) aux enroulements de stator (106) du moteur et la production d'une position angulaire initiale estimée θAXIS, θINIT du rotor en fonction de la composante de courant de stator d'axe q résultante iq_HF, l'ajustement de transformation de vecteurs de signal de coordonnées statiques en coordonnées tournantes et vice versa à l'aide de la position angulaire estimée θAXIS, θINIT, et la production d'une position angulaire estimée ajustée θAXIS, θINIT du rotor en fonction de la composante de courant de stator d'axe q iq_HF ajustée. La détermination d'une position angulaire estimée initiale θAXIS, θINIT du rotor et la production d'une position angulaire estimée initiale ajustée θAXIS, θINIT du rotor sont effectuées avec le rotor (104) au repos et avant l'application initiale d'une tension correspondant au vecteur de signal d'attaque u*αβ aux enroulements de stator (106), et la production d'une valeur initiale d'une instruction de vecteur de signal d'attaque u*αβ en coordonnées statiques utilise la position angulaire estimée ajustée. La détermination d'une position angulaire estimée du rotor après application du courant de stator peut utiliser un procédé différent, tel qu'un capteur de position relative physique.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP2384538US20110248659CN102273063