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Wind power generation power energy storage stabilizing system, control method and control system

A control method and technology for generating power, which can be applied to wind power generation, wind turbines that store power, and reduce/prevent power oscillations. It can solve problems such as power fluctuations in wind power generation systems, achieve energy reuse, and improve grid-connection stability. Effect

Pending Publication Date: 2021-09-07
XI AN JIAOTONG UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a wind power generation power storage stabilization system, control method and control system to solve the problem of wind power generation system power fluctuations when the wind speed fluctuates

Method used

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  • Wind power generation power energy storage stabilizing system, control method and control system
  • Wind power generation power energy storage stabilizing system, control method and control system
  • Wind power generation power energy storage stabilizing system, control method and control system

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Embodiment approach

[0040] The embodiment of the present invention provides a wind power generation power storage stabilization system, control method and control system. In order to stabilize the power fluctuation of the wind power system, an energy storage device is connected to the DC bus to improve the stability of the entire system. When the output power of the permanent magnet synchronous motor is higher than the required power of the grid side subsystem, the energy storage device is charged; when the output power of the permanent magnet synchronous motor is lower than the required power of the grid side subsystem, the energy storage device is discharged.

[0041] Such as figure 1 As shown, a wind power generation power energy storage stabilization system includes a machine-side subsystem, a grid-side subsystem and an energy storage subsystem; the machine-side subsystem includes a fan, a permanent magnet synchronous motor, and a machine-side converter ( AC / DC converter). The grid-side subs...

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Abstract

The invention discloses a wind power generation power energy storage stabilizing system, a control method and a control system. An energy storage subsystem is introduced to the direct current bus side of a wind power generation system to stabilize the power of the wind power generation system, when the wind speed fluctuates, the energy storage subsystem can stabilize the power fluctuation of the wind power generation system, the grid-connected stability of the wind power generation system is improved, and energy reutilization is also realized.

Description

technical field [0001] The invention belongs to the technical field of new energy grid connection, and in particular relates to a wind power generation power storage energy storage stabilization system, a control method and a control system. Background technique [0002] The energy crisis is getting worse and the environmental pollution is getting worse. How to better develop renewable energy and clean energy has become a hot issue. Wind energy is inexhaustible and has no pollution to the environment. It has become a clean energy source vigorously developed by the country, and the installed capacity of wind power has gradually increased. [0003] Large-scale permanent magnet direct drive wind power generation systems mostly use back-to-back dual PWM full-power converters. This structure can realize bidirectional flow of power, and each converter can also use an independent vector control system. Converted into electrical energy that meets grid-connected requirements. Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02J3/24H02J3/38F03D9/11
CPCH02J3/32H02J3/24H02J3/381F03D9/11H02J2300/28Y02E70/30Y02E10/76Y02E10/72
Inventor 黎林园邹建龙
Owner XI AN JIAOTONG UNIV
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