RESOLVER SIGNAL REQUIREMENTS FOR HIGH-ACCURACY RESOLVER-TO-DIGITAL CONVERSION

被引：129

作者：

HANSELMAN, DC

机构：

[1] Department of Electrical Engineering, University of Maine, Orono

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 1990年 / 37卷 / 06期

关键词：

D O I：

10.1109/41.103461

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Tracking resolver-to-digital (R/D) conversion has emerged as the most robust method for obtaining high-resolution position information from resolvers. When driven by ideal resolver signals, tracking R/D converters currently offer position resolutions up to 2(16) quantization intervals/period (16-b resolution) and accuracies to 2(14) intervals/period (14-b accuracy). In this work, the effects of nonideal resolver signal characteristics commonly encountered in practice are investigated. Expressions for the position error reported by an R/D converter due to amplitude imbalance, quadrature error, inductive harmonics, reference phase shift, excitation signal distortion, and disturbance signals are found. From these expressions, bounds on the position accuracy achievable in practical resolver-based position sensing systems are determined.

引用

页码：556 / 561

页数：6

共 10 条

[1] Boyes G., Synchro and Resolver Conversion, (1980)
[2] ILC Data Device Corporation, (1982)
[3] Sylvan J., Resolver-to-digital IC makes move to monolithic, Electron. Design, pp. 84-91, (1987)
[4] Del Toro V., Electric Machines and Power Systems, (1985)
[5] Martinez H., Measuring the position of mechanical shafts, Power Conv. Int., 9, 9, pp. 39-42, (1983)
[6] Hanselman D.C., Thibodeau R.E., Smith D.J., Variable-reluctance resolver design guidelines, Proc. IECON'89, pp. 203-208, (1989)
[7] Nagar K.A., Lordo R.E., Reluctance type resolver with unwound rotor and harmonically graded airgap, Proc. Motor-Con '86, pp. 27-31, (1986)
[8] Cushing I., A new high accuracy angular position transducer, Proc. Motor-Con '84, (1984)
[9] Pavlet J., Harned T.J., High acceleration, two-phase brushless servo, Power Conver. Intell. Motion, 14, 1, pp. 20-25, (1988)
[10] McGillem C., Cooper G., Continuous and Discrete Signal and System Analysis, (1984)

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