Abstract:
This paper describes a novel method of estimating the position of a plunger inside a solenoid. The solenoid is a single-phase variable reluctance actuator, with a highly ...Show MoreMetadata
Abstract:
This paper describes a novel method of estimating the position of a plunger inside a solenoid. The solenoid is a single-phase variable reluctance actuator, with a highly nonlinear magnetic circuit. For the proposed method, position is estimated indirectly through the solenoid's incremental inductance in the high current region. It exploits the advantage that motional electromotive force (EMF) is negligible under normal operating condition. The incremental inductance is obtained from the rate of current rise of the pulse-width modulated (PWM) waveform, which in turn, is measured by a dedicated current rise measurement circuit. Position is estimated from a two-dimensional look-up table of incremental inductance and current. The method is simulated and then implemented on a typical industrial solenoid valve. Factors which affect the accuracy of the estimation and methods of overcoming them are also described in the paper.
Published in: IEEE Transactions on Industry Applications ( Volume: 32, Issue: 3, May-June 1996)
DOI: 10.1109/28.502166
References is not available for this document.
Select All
1.
K. W. Lim, N. C. Cheung and M. F. Rahman, "Proportional control of a solenoid actuator", IEEE Proc. Ind. Electron. Soc. Annu. Meeting IECON'94, vol. 3, pp. 2045-2050, Sept. 1994.
2.
K. W. Lim, N. C. Cheung and M. F. Rahman, "Conversion of a switching solenoid to a proportional actuator", JIEE Proc. Int. Power Electron. Conf. IPEC'95, vol. 3, pp. 1628-1633, Apr. 1995.
3.
M. Eshani and A. B. Kulkani, "Elimination of discrete position and current sensor in switched reluctance motor drives", IEEE Trans. Ind. Applicat., vol. 28, no. 1, pp. 128-135, Jan./Feb. 1992.
4.
S. R. MacMinn, P. M. Szczesny, W. J. Rzesos and T. M. Jahns, "Application of sensor integration techniques to switched reluctance motor drives", IEEE Trans. Ind. Applicat., vol. 28, pp. 1339-1344, Nov./Dec. 1992.
5.
J. P. Lyons, S. R. Macminn and M. A. Preston, "Flux/current method for SRM rotor position estimation", IEEE Proc. Ind. Applicat. Soc. Annu. Meeting, vol. 1, pp. 482-487, 1991.
6.
R. Lagerquist, I. Boldea and T. J. E. Miller, "Sensorless control of synchronous reluctance motor", IEEE Trans. Ind. Applicat., vol. 30, no. 3, pp. 673-682, May/June 1994.
7.
N. C. Cheung, K. W. Lim and M. F. Rahman, "Modeling a linear and limited travel solenoid", IEEE Proc. Ind. Electron. Soc. Annu. Meeting IECON'93, vol. 3, pp. 1555-1563, Nov. 1993.
8.
N. C. Cheung, K. W. Lim and M. F. Rahman, "Simulations and experimental studies toward the development of a proportional solenoid", Proc. Australian Universities Power Eng. Conf. AUPEC'93, vol. 2, pp. 582-587, Sept. 1993.
9.
P. P. Acarnley, C. W. Hooper and R. J. Hill, "Detection of rotor position in stepping and switched reluctance motors by monitoring of current waveforms", IEEE Trans. Ind. Electron., vol. 32, no. 3, pp. 215-222, Aug. 1985.
10.
S. K. Panda and G. A. J. Amaratunga, "Analysis of the waveform detection technique for indirect rotor position sensing of switched reluctance motor drives", IEEE Trans. Energy Conversion, vol. 6, no. 3, pp. 476-483, Sept. 1991.
11.
A. B. Kulkarni and M. Ehsani, "A novel position sensor position elimination technique for interior pemanent-magnet synchronous motor drive", IEEE Trans. Ind. Applicat., vol. 28, no. 1, pp. 144-150, Jan./Feb. 1992.
