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Wind power generation device

一种风力发电装置、发电机的技术，应用在风能发电、电路装置、风力发动机等方向，能够解决延迟投入市场、额定电压不同、降低风力发电机和太阳光发电机互换性等问题

Inactive Publication Date: 2012-05-30
ZEPHYR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in wind power generation and solar power generation, the rated voltage is different, so it is necessary to develop a dedicated inverter
This is a cause of delay in launching a new wind power generator, etc. even if it is developed, and also a cause of reduced interchangeability between wind power generators and solar power generators

Method used

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Examples

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Embodiment Construction

[0015] In this embodiment, control is performed in such a way that when the output of the wind power generator is grid-tied to commercial power using a grid-connected inverter, the inverter is preliminarily provided with a constant-voltage input characteristic. , the output voltage of the wind power generator is boosted to the required input voltage of the inverter, and the output voltage of the wind power generation device maintains a constant output voltage that does not depend on the change of wind speed. Here, grid connection refers to interconnecting generators or loads with different rated power.

[0016] In addition, when the output of the wind power generator is grid-connected to commercial power using the grid-connected inverter, the blade rotational speed of the wind power generator is controlled to maintain a predetermined constant rotational speed.

[0017] Also, the inductance required for voltage boosting and rotational speed control uses the armature winding of ...

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Abstract

Provided is a wind power generation device that can use a general-purpose inverter. A constant-voltage-mode inverter (30) is used. When a wind-power generator (2) is generating power, switching circuits (40-1 to 40-3) are turned on and off with a controlled duty cycle and an armature coil (22) is periodically shorted, thereby increasing the voltage and controlling the rotational speed of windmill blades (20), keeping the voltage applied to the inverter (30) constant. At startup, so that an excessive voltage does not arise while the inverter (30) goes from a standby state to a startup state, a switching circuit (31) is controlled, and the output voltage of a rectifier (23) and a voltage that appears across a resistor (32) are switched, such that the voltage remains at an appropriate level.

Description

technical field [0001] The invention relates to wind power generators. Background technique [0002] Recently, abnormal weather and the like accompanied by the global warming effect have frequently occurred. With the global warming effect, the polar glaciers began to melt on a large scale. It is expected that these abnormal weather etc. will greatly damage or change the ecological system of the earth. In order to preserve a safe and easy-to-live environment for future generations, it is necessary to suppress environmental damage caused by the global warming effect. The main cause of the global warming effect is the massive emission of carbon dioxide into the atmosphere. This is due to the fact that modern civilization primarily gets its energy from burning fossil fuels such as coal or oil. Therefore, in order to obtain energy while suppressing the global warming effect, energy sources that do not rely on conventional fossil fuels are required. [0003] As such new energ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/00F03D7/00F03D7/04F03D9/00F03D9/20F03D9/25
CPCH02P2009/004Y02E10/763Y02E10/723Y02E10/725H02M7/219H02P3/22Y02E10/72H02P9/305H02J3/386H02P2101/15H02J2300/28H02J3/381Y02E10/76H02M1/0085
Inventor 伊藤瞭介大久保隆典近重唯章山崎高士松宫煇
Owner ZEPHYR
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