Solar comprehensive energy-saving system for station-service power of power station

Abstract

The invention discloses a solar comprehensive energy-saving system for station-service power of a power station. In the system, an outgoing line of a solar generating device is connected with a station-service power system of the conventional thermal power generating or atomic energy generating set, and the requirement on a station-service power load is met preferentially by using solar energy, so that the station-service power rate of the conventional generating set is lowered; the system can be designed as an emergency power supply system of the conventional generating set, so that a comprehensive energy-saving effect is achieved, and a side effect caused by direct access of the conventional large-power solar generating set to a power grid is avoided.

Description

technical field [0001] The invention relates to an energy-saving system for a power station, in particular to a comprehensive energy-saving system for power and solar power in a power station, belonging to the field of electrical engineering. Background technique [0002] In my country's primary energy structure, coal and other fossil fuels account for more than 70%. Thermal power plants also account for more than 60% of domestic power generation installed capacity. According to statistics, more than 40% of the world's electricity comes from fossil fuels such as coal. At the same time, atomic power plants are currently a major form of electricity production in the world. . Although the proportion of various renewable energy sources such as wind energy and solar energy is gradually increasing, conventional power stations such as thermal power generation and atomic power generation will still be a major component of the global power industry for a long period of time in the f...

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Problems solved by technology

[0003] As the governments and the public of various countries pay more and more attention to the greenhouse effect caused by the carbon dioxide emitted by thermal power plants burning fossil fuels, improving the efficiency of generating units and reducing pollutant emissions will become a crucial issue for the survival and development of thermal power plants in the future. At the same time, since the nuclear power plants in the United States, Russia, Japan and other countries have suffered serious accidents such as nuclear leaks that endanger environmental safety and human survival, public concerns about their safety have also restricted the further development of nuclear power plants

[0004] In the current large-scale utilization of renewable energy such as solar energy and wind energy, one of the biggest problems is its uncertainty with the environment, climate and time. The unstable power generation brought by these renewable energy sources directly connected to the grid It will have a huge impact on the operation and security of the entire power grid, and it is necessary to adapt to the direct grid connection and dispatching of these new energy generating units through costly smart grid transformation and upgrading

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