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High-frequency generator tripping optimization method for power grid with high permeability new energy

A high-frequency cut-off scheme and high-permeability technology, applied in the field of optimization, can solve problems such as complex high-frequency characteristics of the power grid, and achieve the effect of promoting the acceptance of new energy and strong operability

Active Publication Date: 2015-12-23
CHINA ELECTRIC POWER RES INST +2
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Problems solved by technology

[0004] At present, there are few researches on the high-frequency cut-off scheme of large-scale wind and solar power bundled high-voltage direct current and sent to the downstream power grid at home and abroad. The large energy impact caused by the disturbance of high-voltage direct current and the high-permeability wind and wind are different from those of thermal power units. characteristics, making the high-frequency characteristics of the power grid more and more complicated, and the adaptability analysis and improvement of the high-frequency cut-off scheme need to be further explored

Method used

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  • High-frequency generator tripping optimization method for power grid with high permeability new energy
  • High-frequency generator tripping optimization method for power grid with high permeability new energy
  • High-frequency generator tripping optimization method for power grid with high permeability new energy

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Embodiment

[0094] Taking a certain target mode year of Ningxia Power Grid as an example, based on the PSD-BPA simulation platform, the high-frequency cut-off scheme of the Ningxia Power Grid's wind-power bundled HVDC external transmission system is analyzed.

[0095] The geographical wiring diagram of Ningxia power grid in the target year is as follows: figure 2 As shown, under the typical mode of Ningxia power grid in the target year, the total starting capacity of thermal power is about 30,000MW, and the load is about 14,700MW. The total installed capacity of wind and solar is about 12000MW, mainly concentrated in Shizuishan, Yinchuan, Wuzhong, Ningdong, Zhongwei and Guyuan. Two outgoing direct currents, ±660kV Yinchuan-Qingdao high-voltage direct current (Ningdong direct current) outgoing 4000MW, ±800kV Taiyangshan-Shaoxing UHV direct current (Lingshao direct current) outgoing 8000MW, AC channel Yingshui-Shicheng via 330kV connecting line , Ning'an-Baiyin, Guyuan-Jingyuan, Guyuan-Xi...

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Abstract

The invention relates to a high-frequency generator tripping optimization method for a power grid with high permeability new energy. The method comprises the steps of incorporating the high permeability new energy into a high-frequency generator tripping scheme, and analyzing the fitness; proposing a coordinated generator tripping principle of new energy and a thermal power unit based on the high-frequency generator tripping scheme; and devising a high-frequency generator tripping optimization scheme involving the new energy. The method provides technical support for frequency safety of the power grid with the high permeability new energy, improvement is made based on a traditional high-frequency generator tripping scheme, pertinence is high, and operation is facilitated.

Description

technical field [0001] The invention relates to an optimization method, in particular to an optimization method for power grid high-frequency cut-off for high-permeability new energy access. Background technique [0002] In recent years, with the continuous acceleration of my country's economic development, the demand for electricity has continued to grow, and the energy shortage in the world has made the contradiction between supply and demand of electricity increasingly prominent. The development and utilization of emerging energy has become an inevitable trend of current development. The maturity of wind power generation and photovoltaic power generation technology and its commercial application, and the continuous reduction of power generation costs have made new energy sources such as wind and solar energy become emerging energy sources with a relatively fast growth rate in the power system. [0003] With the integration of large-scale wind and new energy into the power...

Claims

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Application Information

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IPC IPC(8): H02J3/38
CPCY02E10/76
Inventor 陈得治陈赟申旭辉马世英郑超宋云亭吴丽华张志强杨琦罗红梅丁坤
Owner CHINA ELECTRIC POWER RES INST
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