汾西矿业集团水泥厂地面变电所的设计-外文翻译.doc

1、外文文献 Complicated power system in our country, in order to be able to further understand the development situation of power system in our country, to our country electric power system were investigated. Overall status quo of Chinas electric power system is better, with the growth of economy, electric

2、ity demand is also more and more big, but there are regional differences. Power structure in some problems, should adjust the structure of the power supply, should from the following three aspects: one is each kind of power supply especially thermal power need to adjust technological progress; The s

3、econd is the proportion of hydropower, thermal power and other forms of power generation should be reasonably adjust; 3 it is layout of power supply should be adjusted, too. Reserves of coal resources in our country, but its reasonable distribution. High load such as the east China area has coal, co

4、al in northern most concentrated in the northwest and north China. And is suitable to build hydropower place mostly in the west. Hydropower resources, but the distribution is not reasonable. Should adjust the layout by power grid construction for power resources optimize a vast variety of renewable

5、resources in China Affected by economic growth, especially the strong industrial production growth, demand for electricity in China to achieve high growth, but our country electricity distribution growth area. Electricity growth according to regional distribution is very uneven, the overall electric

6、ity strong growth Chinas eastern coastal economic developed region, the western region more energy-intensive industrial distribution provinces electricity growth is bigger also, slower growth in central China, Chinas electric power system load also presents a structural change. Now environmental pro

7、blems more and more serious, now of the electric power construction must consider this. In the second part introduces the present situation of electric power system in China, the third part is the development trend of power system in our country. power supply structure adjust the electric power indu

8、stry in our countrys industrial policy purpose is to optimize the power structure, strengthening the construction of power grid. Priority to the development of hydropower, nuclear power, wind power, solar power, biomass and other renewable energy and new energy, while the coal based on the optimizat

9、ion of structure, resource conservation, attaches great importance to environmental protection, raise the level of technical and economic.Big pressure on small measures for improvement of the thermal power industry average single capacity, enhance the overall economic benefits of the industry, impro

10、ve the environmental benefits. For new energy policies and planning, will lead to lower proportion of thermal power in electric power, increase the proportion of water and electricity, nuclear power, wind power, optimize the electricity structure.Changes in industry structure at the same time, measu

11、re the factors of electric power enterprise competitiveness is also changing. Energy-saving power generation dispatching method, to a great extent, changed the competitive landscape industry enterprises; The high proportion of new energy power generation companies, high resource utilization will be

12、more long-term competitive advantage.In the face of the serious of our country Our energy resources and the imbalance of the power load distribution, determine the China is the inevitable choice of our country. China is focused on conveying hydroelectric power. In accordance with the principle of ec

13、onomy, moderate construction of coal-fired power plant, the implementation xd to east.Send at present, China has entered the stage of full implementation: guizhou province to guangdong 500 kv ac and dc power transmission and transformation projects have been put into production operation, to guangdo

14、ng power scale has reached 10.88 million kilowatts. Three gorges to east China, guangdong + 500 kv dc power transmission and transformation project has been put into production. Stake, shanxi, shaanxi region send to jing jin tang net capacity increased gradually. North China and the northeast, fujia

15、n and east China, each with a batch of network such as central China project has been put into operation, interregional exchange capacity reach 86.2 billion KWH in 2003.As of July 2005, in addition to the hainan has preliminarily realized the networking, preliminary achieved across the optimal alloc

16、ation of regional resources, more frequency on power exchange between the regional power gridwind power construction scale is gradually expanding. Starting from seventh construction of wind farms, by the end of 2004, China has built 43 wind farm, the cumulative installed 1292 units, with a total installed capacity of 764000 kilowatts, accounted for 0.17% of the countrys electricity installed. Stand-alone capacity of 2000 kilowatts. geothermal powe