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Primary frequency modulation and virtual inertia response control method and device for wind power plant station

A technology of virtual inertia and control method, applied in circuit devices, wind power generation, electrical components, etc., can solve problems such as equipment wear, inability to actively participate in grid virtual inertia response, economic loss, etc., to improve economy and improve regulation ability And anti-interference ability, improve the effect of stability and anti-interference

Active Publication Date: 2021-04-09
沈阳微控新能源技术有限公司
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Problems solved by technology

[0008] The invention aims to solve the technical problems in the prior art that the wind farm station participates in the primary frequency regulation of the power grid through reserved active power reserve capacity, the economic loss, equipment wear, and the inability to actively participate in the virtual inertia response of the power grid

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  • Primary frequency modulation and virtual inertia response control method and device for wind power plant station
  • Primary frequency modulation and virtual inertia response control method and device for wind power plant station
  • Primary frequency modulation and virtual inertia response control method and device for wind power plant station

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Embodiment Construction

[0058] Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary, and embodiments of the present invention are described in detail below.

[0059] Refer below Figure 1-Figure 7 The primary frequency modulation and virtual inertia response control method and device for a wind farm station according to an embodiment of the present invention are described.

[0060] First, combine figure 1 Describe the wind farm stations involved. Such as figure 1 As shown, the wind farm station includes wind turbines and a centralized flywheel energy storage array system connected to the wind turbines. The centralized flywheel energy storage array system includes a flywheel energy management and coordination controller, a primary frequency and inertia response master control system, and multiple flywheel energy storage array systems connected in parallel. Wherein, each flywheel energy storage system includes...

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Abstract

The invention discloses a primary frequency modulation and virtual inertia response control method and device for a wind power plant station and belongs to the technical field of power grid frequency modulation. The wind power plant station comprises a wind turbine generator set and a centralized flywheel energy storage array system connected with the wind turbine generator set. The method comprises the following steps of: receiving instruction information issued by an automatic power generation control system, acquiring voltage, current and power grid frequency at the grid-connected point of the wind power plant station in real time; and controlling the wind turbine generator set and the centralized flywheel energy storage array system to perform primary frequency modulation or virtual inertia response according to the voltage, the current, the power grid frequency and the frequency change rate corresponding to the power grid frequency. According to the method and device of the invention, the centralized flywheel energy storage array system is configured in the wind power plant station, and the centralized flywheel energy storage array system is controlled to charge and discharge to participate in the primary frequency and virtual inertia response of a power grid, so that the wind turbine generator set has primary frequency modulation and inertia response capabilities under full-working-condition operation, and the stability and disturbance rejection of the wind turbine generator set are improved; and the operation economy of the wind power plant station is improved.

Description

technical field [0001] The invention relates to the technical field of power grid frequency modulation, in particular to a primary frequency modulation and virtual inertia response control method and device for a wind farm station. Background technique [0002] At present, new energy has been gradually applied to the power grid, and new energy power generation technology will surely become the main means of power supply in the future. When new energy is connected to the power grid on a large scale, it will occupy the starting space of conventional units, which will reduce the moment of inertia of the system and reduce the frequency regulation capability, resulting in faster changes in grid frequency, increased fluctuations, and increased steady-state frequency deviation, which in turn will increase the risk of overrunning. . Since the new energy power generation equipment does not have the inertia and primary frequency modulation capability to respond to system frequency ch...

Claims

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Application Information

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IPC IPC(8): H02J3/30H02J3/24H02J3/38H02J3/46H02J3/48
CPCH02J3/30H02J3/381H02J3/48H02J3/241H02J3/466H02J2203/10H02J2300/28Y02E10/76Y02E60/16Y02E70/30
Inventor 葛自强
Owner 沈阳微控新能源技术有限公司
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