ABB residual current operated protective devices in the application of windpower generation system

Abstract: in this paper, the commonly used low-voltage devices application of windpower ABB power devices application of windpower ABB distribution switches are compared, and then according to the characteristics of wind power generation <a href="/searchfanan.html?search=system&select=7">system, the solution of the distribution system is discussed.

1 Introduction

With the scarcity of conventional resources, the global advocacy of saving resources, and a kind of renewable energy, clean and renewable energy, wind energy, has played an important role in the energy shortage. The Chinese government has also put forward the construction of a conservation oriented society, environmental protection society, the wind power industry has provided a lot of room for development. China's wind energy reserves are very large, wide distribution, and only on the land of wind energy reserves of about 2.53 kilowatts. Although China has a big gap in the development level of wind power and other countries, but in recent years, the Chinese government strongly supports and actively promote the development of wind power industry, believe that in the near future, China's wind power will become one of its main source of power.

2 characteristics of wind power generation and distribution system

Compared with conventional thermal power station and hydroelectric power station, the wind power station is less, and the power station is less, so the power supply of the wind power station is very few, especially in the tower.

Due to the use of the environment is relatively poor, the need to use the flame retardant and temperature range of the device.

According to the characteristics of its source, it can be seen that the quality of the power supply is determined by the quality of the 690V bus and the performance of the power distribution device. And conventional power plant has a special power distribution system, compared to the wind power distribution system to put forward higher requirements.

3 wind power generation and distribution system solution

3.1 the power distribution system

In the wind power system, only the 690V of the tower can be charged in the long time, which is the power supply of the tower, which is usually supplied by the power supply to the power supply after the 690V:400V.