A piezoelectric/electrostrictive device comprises a pair of mutually opposing thin plate sections, a movable section, and a fixation section for supporting the thin plate sections and the movable section. A piezoelectric/electrostrictive element is arranged on at least one thin plate section of the
A piezoelectric/electrostrictive device comprises a pair of mutually opposing thin plate sections, a movable section, and a fixation section for supporting the thin plate sections and the movable section. A piezoelectric/electrostrictive element is arranged on at least one thin plate section of the pair of thin plate sections. A hole is formed by the inner walls of the pair of thin plate sections, the movable section and the fixation section. A central portion of the movable section is cut off to form mutually opposing end surfaces in the movable section.
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A piezoelectric/electrostrictive device comprises a pair of mutually opposing thin plate sections, a movable section, and a fixation section for supporting the thin plate sections and the movable section. A piezoelectric/electrostrictive element is arranged on at least one thin plate section of the
A piezoelectric/electrostrictive device comprises a pair of mutually opposing thin plate sections, a movable section, and a fixation section for supporting the thin plate sections and the movable section. A piezoelectric/electrostrictive element is arranged on at least one thin plate section of the pair of thin plate sections. A hole is formed by the inner walls of the pair of thin plate sections, the movable section and the fixation section. A central portion of the movable section is cut off to form mutually opposing end surfaces in the movable section. , Proceedings of Windpower '93, San Francisco, CA, Jul. 12-16, 1993, pp. 134-141. E. F. Fuchs, et al., Permanent-Magnet Machines for Operation with Large Speed Variations, Proceedings of Windpower '92, Seatle, Washington, Oct. 19-23, 1992, pp. 291-299. C. Gallo, et al., Design and Dynamic Simulation of a Fixed Pitch 56 kW Wind Turbine Drive Train with a Continuously Variable Transmission, NASA, Mar. 1986. Luis J. Garces, Parameter Adaption for the Speed-Controlled Static AC Drive with a Squirrel-Cage Induction Motor, IEEE Transactions on Industry Applications, vol. IA-16, No. 2, Mar./Apr. 1980, pp. 173-178. P. Gardner, Power Quality, 21stMeeting of Experts--Electrical Systems for Wind Turbines with Constant or Variable Speed, Goteborg, Denmark, Oct. 7-8, 1991, pp. 25-35. General Electric Company, "Conceptual Design Study for the Wind Turbine Hydro Pump-Back System", Wind Power Plants for Electric Utility Systems in New York State, Niagara Mohawk Power Corporation, Final Report, vol. 2, Oct. 1980. Edward W. Golding, The Generation of Electricity by Wind Power, Philosophical Library, 1955, pp. 219-225. Anders, Grauers, Electric Efficiency of a Variable Speed Generator System, 21stMeeting of Experts--Electrical Systems for Wind Turbines with Constant or Variable Speed, Goteborg, Denmark, Oct. 7-8, 1991, pp. 103-111. Laszlo Gyugyi, Reactive Power Generation and Control by Thyristor Circuits, IEEE Transactions on Industry Applications, vol. IA-15, No. 5, Sep./Oct. 1979, pp. 521-532. Thomas G. Habetler, et al., Angle Controlled Current Regulated Rectifiers for AC/AC Converters, IEEE Transactions on Power Electronics, vol. 6, No. 3, Jul. 1991, pp. 463-469. Thomas G. Habetler, et al., Control Strategies for Direct Torque Control Using Discrete Pu
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