Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1993-06-02
1995-11-14
Karlsen, Ernest F.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
318701, G01R 3134, H02P 600
Patent
active
054670250
ABSTRACT:
A sensorless rotor position measurement system comprises a digital processor (6) which receives signals from current and flux sensors (7, 8) of the current and flux associated with a phase winding of the machine. The measurement of the current and flux is enabled at a predicted reference rotor position. The measurements are compared with stored values of current and flux and an error between the actual and the predicted reference position calculated. The calculated rotor position can then be used to predict the instant the rotor will reach the next reference position.
REFERENCES:
patent: 3911339 (1975-10-01), Rettig
patent: 4060753 (1977-11-01), Okuyama et al.
patent: 4593240 (1986-06-01), Blaschke
patent: 4943760 (1990-07-01), Byrne et al.
patent: 5043643 (1991-08-01), Hedlund et al.
patent: 5173650 (1992-12-01), Hedlund
patent: 5196775 (1993-03-01), Harris et al.
Chappell et al.; "Microprocessor Control . . . " IEE Proceedings B (Electric Power Applications); vol. 131; No. 2; Mar. 1984; pp. 51-60.
"A New Sensorless Position Detector For SR Drives", M. Vungi et al., 4th Int. Conf. on Power Electronics and Var. Speed Drives, 249-252.
"Flux/Current Methods for SRM Rotor Position Estimation", Lyons et al., IEEE IAS Conf. Dearborn, Sep. 1991, pp. 482-487.
"Switched Reluctance Motor Drive without Direct Rotor Position Sensing", Panda et al., Proc. IEEE; IAS Conf., Oct. 1990, pp. 525-530.
"A New Algorithm for Sensorless Operation of Permanent Magnet Motors", Ertugrul et al., IEEE IAS Conf. Proc., Sep. 1992, pp. 414-421.
"Varaible-speed Switched Reluctance Motors", P. J. Lawrence et al., IEE Proc. B, Electr. Power App., vol. 127, No. 3, pp. 253-265, 1980.
"Accurate Sensorless Rotor Position Detection in an SR Motor", Muungi et al., EPE Conf. Proc. 1991 vol. I, pp. 390-393.
Stephenson, J. M., Switched Reluctance Motors, Section 2, IEEE Tutorial given at IAS Conference, Seattle, Oct. 12, 1990, pp. 4-35.
MacMinn, Stephen R., Control of the Switched Reluctance Machine, Section 3, IEEE Conference, Oct. 12, 1990, pp. 36-59.
Mvungi, N. M., Stephenson, J. M., Accurate Sensorless Position Detection in an SR Motor, EPE Firenze, 1991.
Karlsen Ernest F.
Switched Reluctance Drives Limited
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