All Adjunct Galilean Satellite Orbiter Concept Using a Small Nuclear Power Source

At present, in the typical design of China’s nuclear power plant, main generation system is connected to the power grid by 500 kV system. 500 kV system as a priority power source, 220kV system as an auxiliary power source. Independent operation of 500kV and 220kV system, improved the reliability of power supply of nuclear power plant. However, the DC 220V power system used to control the 500kV and 220kV system in the switch station of partial nuclear power project is not independently configured, and the design form of one set of DC system is used in the transformer station. In recent years, there are many accidents that AC power enters into the DC power system, resulted in the loss of power source in the transformer station. The loss of external power source in the whole plant is very significant. In this paper, the influence of AC power entering into DC power system on relay protection device is analyzed, the measures to prevent the AC power into DC power system are discussed, the necessity of independent configuration of DC control power system for the 500kV priority power system and 220kV auxiliary power supply system is analyzed.

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China Power Source Structure and CO2 Emissions Reduction

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.361-363.946 ◽

2011 ◽

Vol 361-363 ◽

pp. 946-953

Author(s):

Yu Ze Jiang ◽

Yan Zhao Yang ◽

Qing Wei Guo

Keyword(s):

Wind Power ◽

Energy Production ◽

Nuclear Power ◽

Thermal Power ◽

Clean Energy ◽

Power Source ◽

Emissions Reduction ◽

Hydroelectric Power ◽

Installed Capacity ◽

Source Structure

According to the statistics data and planning material from the authority, the power source structure of China is analyzed and the clean power prospect is forecasted, which aim to explore occurring to CO2emissions reduction in the power industry. Based on The national greenhouse gas list guide published by Inter-governmental Panel on Climate Change (IPCC) in 2006, the trend of clean energy reduction CO2is predicted. In recent years, the clean energy power is developing quickly, while the share of thermal power gradually declines. By the end of 2010, the percent of thermal power in the total installed capacity is 73.44%, while the hydropower, and wind power and nuclear power accounts for 26.53%. The contribution of thermal power to generated energy is 80.76%, while the clean power is 19.22%. The capacity of thermal power unit with above 300 MW is predominate, accounting for 80%. In 2020, the installed capacity of hydroelectric power, wind power and nuclear power will reach 402 million kW, 150 million kW and 70 million kW, respectively. The corresponding annual energy production of three kinds of clean energy can reach 1.75 trillion kW•h, 314.55 billion kW•h, and 554.68 billion kW•h, which can reduce CO2emissions 1534, 276, 486 million tons, respectively. It is estimated that a total of 2.296 billion tons CO2emissions will be reduced in 2020.

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