Prime-mover dynamo plants – Electric control – Fluid-current motors
Reexamination Certificate
2010-02-18
2011-11-22
Ponomarenko, Nicholas (Department: 2839)
Prime-mover dynamo plants
Electric control
Fluid-current motors
C322S024000
Reexamination Certificate
active
08063500
ABSTRACT:
The present invention provides a maintenance operation method for a wind turbine generator and a wind turbine generator, which can effectively utilize a phase advance capacitor equipped in the wind turbine generator and contribute to the phase factor improvement of the system side. A maintenance operation method for a wind turbine generator including an induction generator3driven by rotation of blades2, a power output line5for outputting power of the induction generator3to a distribution system5, and at least one phase advance capacitor10parallel-connected to the power output line, comprises: a first step of releasing connection between the phase advanced capacitor10and the power output line5when a maintenance mode is selected; and a second step of returning the connection between the phase advanced capacitor10and the power output line5by a manual operation or an automatic operation, wherein the phase advance capacitor10returned to the connection with the power output line5performs a power factor improvement of reactor loads53, 54in the distribution system50side through a linkage portion60with the distribution system50.
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Ake Larsson, “The Power Quality of Wind Turbines”, Ph.D. Thesis Chalmers University of Technology, Geoteborg, Sweden, 2000, Section 2.1, Section 3.1, figure 3.1, Section 3.2.1, fig. 3.4, Section 4.2.2, fig. 4.6, Section 4.4, Section 3.2.3, Section 5.2 Conclusions, Paper 2A, Paper 4C (section II B).
Fukuda Mitsuyoshi
Irie Eiji
Minami Tohru
Berner Kenneth M.
Hauptman Benjamin J.
Kanesaka Manabu
Mitsubishi Heavy Industries Ltd.
Ponomarenko Nicholas
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