Primary frequency modulation control method and related device

A control method and controller technology, applied in circuit devices, AC network flicker reduction, reduction/prevention of power oscillation, etc., to achieve the effect of ensuring work efficiency and work stability, and rapid adjustment of output power

Pending Publication Date: 2021-11-12
HEFEI SUNGROW RENEWABLE ENERGY SCI & TECH CO LTD
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  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention provides a primary frequency modulation control method and related devices to solve the problem of how to control the power generation of the new energy power generation system to stabilize near the target power

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  • Primary frequency modulation control method and related device
  • Primary frequency modulation control method and related device
  • Primary frequency modulation control method and related device

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Embodiment Construction

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0061] As an important index to measure power quality, grid frequency is related to the normal operation of electrical equipment and the quality of power consumption of users. With the continuous expansion of the grid scale, new energy power sources have become the main power source of the grid in some areas, and the number of thermal power units has been continuously reduced.

[0062] The new energy power generation system is greatly affected by the weather, ...

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Abstract

The invention provides a primary frequency modulation control method and a related device. The method comprises the steps: obtaining the target power of primary frequency modulation of a current control period and the target power variation of the target power relative to the target power of a previous control period during the primary frequency modulation; and when the target power variation is not a preset threshold value and the working state of an energy storage system corresponding to the target power variationis available, preferentially adjusting the charging and discharging power of the energy storage system, and when the working state of the energy storage system corresponding to the target power variation is unavailable, preferentially adjusting the power generation power of the new energy power generation system. According to the invention, the energy storage system is introduced to carry out primary frequency modulation control, so that when the power generation frequency of the new energy power generation system deviates from the target frequency far, the output power of the power system is rapidly stabilized at the target power by utilizing the cooperation of the charging and discharging control of the energy storage system and the power generation control of the new energy power generation system so as to ensure the working efficiency and the working stability of the power system.

Description

technical field [0001] The present invention relates to the field of primary frequency modulation, and more specifically, relates to a primary frequency modulation control method and related devices. Background technique [0002] As an important index to measure power quality, grid frequency is related to the normal operation of electrical equipment and the quality of power consumption of users. With the continuous expansion of the grid scale, the new energy power generation system in some areas has become the main force of power generation. [0003] The new energy power generation system is greatly affected by the weather, which makes the power generation frequency of the new energy power generation system fluctuate greatly, which in turn causes the power generation frequency of the entire power system to deviate far from the target frequency, reducing the power generation efficiency and power generation stability of the power system. [0004] Therefore, how to control the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/24H02J3/28H02J3/46
CPCH02J3/24H02J3/241H02J3/28H02J3/46H02J3/466H02J3/381H02J3/002H02J2203/10
Inventor 孙德亮杨志强江跃
Owner HEFEI SUNGROW RENEWABLE ENERGY SCI & TECH CO LTD
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