POWER CONVERTER APPARATUS
First Claim
1. A power converter apparatus that is applied to a wind power generation system and converts power generated by a wind power generator to alternating-current power supplied for a power system, the power converter apparatus comprising:
- a system voltage detector configured to detect a system voltage of the power system; and
a controller configured to stably output power generated by the wind power generator to the power system based on a power instruction value from a higher level controller and to control an output voltage of the power converter apparatus to stabilize the system voltage of the power system based on an alternating-current voltage instruction value in a case where the system voltage detected by the system voltage detector is within a preset range, and configured to control an active current component and a reactive current component of an output current of the power converter apparatus to stabilize the system voltage of the power system by use of a voltage drop due to impedance of the power system in a case where the system voltage detected by the system voltage detector is outside the preset range.
3 Assignments
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Accused Products
Abstract
There is provided a power converter apparatus including a detector detecting a system voltage, and a controller stably outputting power generated by the wind power generator to the power system based on a power instruction value and controlling an output voltage to stabilize the system voltage based on a voltage instruction value in a case where the system voltage is within a preset range, and controlling an active current component and a reactive current component of an output current to stabilize the system voltage of the power system by use of a voltage drop due to impedance of the power system in a case where the system voltage is outside the preset range.
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Citations
8 Claims
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1. A power converter apparatus that is applied to a wind power generation system and converts power generated by a wind power generator to alternating-current power supplied for a power system, the power converter apparatus comprising:
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a system voltage detector configured to detect a system voltage of the power system; and a controller configured to stably output power generated by the wind power generator to the power system based on a power instruction value from a higher level controller and to control an output voltage of the power converter apparatus to stabilize the system voltage of the power system based on an alternating-current voltage instruction value in a case where the system voltage detected by the system voltage detector is within a preset range, and configured to control an active current component and a reactive current component of an output current of the power converter apparatus to stabilize the system voltage of the power system by use of a voltage drop due to impedance of the power system in a case where the system voltage detected by the system voltage detector is outside the preset range. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A control method of controlling a power converter apparatus that is applied to a wind power generation system and converts power generated by a wind power generator to alternating-current power supplied for a power system, the control method comprising:
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detecting a system voltage of the power system, and stably outputting power generated by the wind power generator to the power system based on a power instruction value from a higher level controller and controlling an output voltage of the power converter apparatus to stabilize the system voltage of the power system based on an alternating-current voltage instruction value in a case where the system voltage detected is within a preset range, and controlling an active current component and a reactive current component of an output current of the power converter apparatus to stabilize the system voltage of the power system by use of a voltage drop due to impedance of the power system in a case where the system voltage detected is outside the preset range.
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Specification