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Tie-line power transmission plan optimization method for improving low-carbon level of electric system

A technology of power system and optimization method, applied in wind power generation, single grid parallel feeding arrangement, etc., can solve the problems of low-carbon resource waste, inability to fully adapt to wind power output fluctuation and anti-peak shaving characteristics, wind curtailment, etc.

Active Publication Date: 2015-04-29
STATE GRID CORP OF CHINA +1
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Problems solved by technology

In the wind-fire mutual aid transmission system, the traditional power control mode cannot fully adapt to the fluctuation of wind power output and the anti-peaking characteristics, and wind power may be abandoned, resulting in waste of low-carbon resources

Method used

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  • Tie-line power transmission plan optimization method for improving low-carbon level of electric system
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  • Tie-line power transmission plan optimization method for improving low-carbon level of electric system

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Embodiment Construction

[0045] The detailed description and application demonstration of the present invention will be given below in conjunction with the accompanying drawings and case data.

[0046] figure 1 As a flow chart of the method for optimizing the tie-line power transmission plan to improve the low-carbonization level of the power system, the first step is to establish an optimization analysis model. In the analysis of the power supply of the tie line, it is not necessary to pay attention to the output of a single unit, and the analysis of the power transmission power of the tie line can be realized by considering the total output and peak-shaving characteristics of various units at both ends of the tie line. In order to simplify problem analysis and speed up calculation, various units such as coal-fired thermal power, gas-fired thermal power, wind power, nuclear power, etc. are modeled in a unified manner. The sending and receiving end systems are regarded as a single node, the average v...

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Abstract

The invention discloses a tie-line power transmission plane optimization method for improving the low-carbon level of an electric system. According to the method, an optimization analysis model is established, related data of the system, the load curve and the wind power output prediction curve of the system and tie-line power transmission plans to be selected are collected, the related data are substituted into the optimization analysis model and solved through optimization software, and through comparing and analyzing the multiple alternative power transmission plans, the power transmission plan lowest in operation cost is selected. According to wind power output, load prediction and other information a few days ago, through adopting the tie-line power transmission plan arranged in an optimization mode, wind power absorption space of a receiving end system can be sufficiently utilized for assisting a transmitting end system in absorbing wind power, and global system operation is optimized. System wind power absorption can be promoted, and practice guides are provided for optimization operation of a power grid.

Description

technical field [0001] The invention relates to an optimization method for tie-line power transmission plan, in particular to an optimization method for tie-line power transmission plan to improve the low-carbonization level of power system. Background technique [0002] The emergence of a series of crises such as global climate change and energy depletion has forced human beings to rethink their own development methods. Adhering to energy conservation and emission reduction and developing a low-carbon economy are important ways for countries to achieve sustainable development. The Chinese government has made a commitment to reduce emissions to the world. By 2020, the carbon emissions per unit of GDP will be reduced by 40% to 45% compared with 2005. In order to achieve emission reduction goals and realize sustainable development of energy supply, the development and utilization of renewable energy has become a focus of attention. [0003] my country's energy resources and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46
CPCH02J3/46Y02E10/76
Inventor 田鑫康耕强吴健牛新生陈士方赵光锋朱秀波李勇卢兆军吴观斌许乃媛王洪伟卢志鹏张杰
Owner STATE GRID CORP OF CHINA
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