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Offshore wind power/frequency control method

A frequency control and power technology, which is applied in the control of wind turbines, wind power generation, hydropower generation, etc., and can solve problems such as environmental assessment limitations of construction sites.

Inactive Publication Date: 2011-02-16
CHINA EPRI SCIENCE & TECHNOLOGY CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Generally speaking, pumped storage power stations are accompanied by large-scale civil engineering including the construction of upstream and downstream reservoirs, so the impact on its surrounding environment often becomes the focus of attention, and the selection of its construction site is also easily affected by environmental factors. evaluation limit

Method used

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  • Offshore wind power/frequency control method
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  • Offshore wind power/frequency control method

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Embodiment Construction

[0028] The invention utilizes abundant offshore wind energy resources to establish a large-scale offshore wind farm near the sea, with an installed capacity of Pw. Since the wind energy is uncertain, the electric energy generated by the wind farm cannot be directly used for local loads. Therefore, an offshore pumped storage power station is built near the wind farm, and the sea is used as the lower reservoir, and an upper reservoir is established on an appropriate place on the island, in which the water turbine The rated power of pumping water is Pp, and the rated power of generating set is Ph. In addition, the present invention also configures hydrogen production equipment for the wind farm, and the power of each group is 1P, 2P, 4P...2 n-1 P, where the total power of the hydrogen production equipment = the installed capacity of the wind farm Pw. The hydrogen production equipment is switched on and off through the electronic load regulator, so that the system finally stabili...

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Abstract

The invention provides an offshore wind power / frequency control method. An offshore wind power station is combined with a pumped storage power station to form a complementary operation system; a control system is used for regulating the moment output in the wind power station and the pumped storage power station according to a wind power station power forecast curve, a local daily load curve, a system parameter, and the like to meet the local load requirement; at the same time, the wind power station uses a hydrogen production device as the change load; and an electronic load regulator is used for switching the hydrogen production device to different extents according to the unnecessary electricity of the wind power station at various moments.

Description

technical field [0001] The invention belongs to the field of automatic control, and in particular relates to an offshore wind power / frequency control method. Background technique [0002] Under the influence of continuous shortage of global energy supply and financial crisis, countries all over the world have stepped up efforts to develop clean energy such as wind power generation. Offshore wind power is gradually becoming an important strategic direction for wind energy development in various countries. The distance between my country’s islands and the mainland is generally 10 to 50 nautical miles. No electricity and high electricity prices have seriously restricted the economic development of these islands. my country has abundant offshore wind energy resources. Offshore wind power has less negative impact on the environment due to its rich resources. The advantages of large-scale development have always attracted the attention of wind power developers. At present, there ...

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Application Information

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IPC IPC(8): F03D7/00F03B15/00F03B13/06
CPCY02E10/226Y02E10/723Y02E60/17Y02E10/22Y02E10/20Y02E10/72Y02E60/16Y02P70/50
Inventor 宋洁王志凯
Owner CHINA EPRI SCIENCE & TECHNOLOGY CO LTD