Wind power generation control device and wind power generation control method

Abstract

A wind power generation control device which controls a wind power generator using a wind turbine blade having a fixed pitch angle is provided. The wind power generation control device which controls the wind power generator in which an output current value outputted by the wind power generator is detected, an output voltage value outputted by the wind power generator is detected, a rotational speed of the wind turbine blade is detected, and on the basis of the detected output current value at the current time, the detected output voltage value at the current time, and the detected rotational speed at the current time, output power at the rotational speed at the current time is calculated, and on the basis of the calculated output power and blade aerodynamic properties, which are properties inherent to the wind turbine blade, the wind power generator is controlled so that an optimal amount of power corresponding to the wind speed can be efficiently obtained in a relatively low wind speed region and a wind power generation control method for controlling the wind power generator are provided.

Description

technical field [0001] The present invention relates to a wind power generation control device for controlling a wind power generator converting wind power into electric power and a wind power generation control method for controlling the wind power generator. Background technique [0002] Conventionally, wind power generators that convert wind power into electric power have attracted attention as non-polluting power generating devices and have been put into practical use. In particular, small wind turbines with a rated output of several thousand watts (kW) are used as power sources for lighting fixtures in businesses, schools, and general households, as heaters for plastic greenhouses, and as measuring devices for temperature and humidity. Power supply, or power supply for street lamps such as shopping streets and arterial roads. [0003] When the rotational speed of the windmill increases due to the increase of wind speed in such a small-sized wind power generator, there ...

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Problems solved by technology

[0009] However, with regard to power control in a relatively low wind speed range of about 10 (m / s) or less, there is a problem that the optimal amount of power corresponding to the wind speed cannot be effectively obtained.

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