Integration transformer substation for wind power generation

Abstract

The invention provides a special integrated-type substation for wind power generation, comprising a semi-encapsulated impregnated insulated transformer unit, as well as a high voltage unit and a low voltage unit which are cast and sealed by epoxy resin. The transformer unit, the high voltage unit and the low voltage unit are fixed in a shell, showing a shape like a Chinese character 'pin'. The high voltage unit is connected to a high voltage end of the transformer unit through a touchable connecting cable, and the lower voltage end of the transformer unit is connected to an input end of the low voltage unit. The special integrated-type substation for wind power generation is arranged in a wind power generation host tower cylinder. The substation not only overcomes the disadvantage that the transformer unit, the high voltage unit and the low voltage unit in the prior substation for wind power generation are arranged independently and separately, but also completely gives play to the superiority of solid insulated electrical equipment, is long in life span and little in overload time, can automatically adopt speed limit measures or stop operating when a blower is overloaded, and can not be overloaded on the whole. The design that the substation is unattended reduces maintenance cost.

Description

technical field [0001] The invention relates to a substation, in particular to a solid insulation semi-encapsulated integrated substation dedicated to wind power generation (tower built-in type). Background technique [0002] my country is rich in wind energy resources and is one of the major countries in wind energy utilization because it is a clean and renewable resource. Green and environmental protection, large reserves. At present, my country has achieved rapid development. It is estimated that the installed capacity of wind turbines in my country will reach 55 million kW in 2010, and will reach 112 million kW in 2020. It can be seen that the prospect of wind power generation is becoming more and more promising in terms of economic and social benefits. broad. In the wind power plant, the 690V electric energy generated by the wind turbine is boosted to 10kV (or 35kV) by the substation, and then transmitted to the general booster station of the wind farm through the grou...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at problems such as waste of energy consumption of substations, reliability of installation and operation of substations, and economic losses brought to the country and power users by the increase of capital construction cost and operation and maintenance cost, etc. The solid-insulated semi-encapsulated integrated substation dedicated to wind power generation in the tower has a compact structure, a small footprint, low operation and maintenance costs, is not affected by the operating environment, and can significantly reduce the investment in power facilities and the loss of transmission and feeder lines.

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