Coordination control method applied to flywheel energy storage matrix system of wind power plant

A flywheel energy storage and coordinated control technology, which is applied in the field of flywheel control, can solve the problems of large flywheel switching loss and operation loss, the inability to guarantee the stability of the flywheel energy storage matrix system, and the stability of the power system, so as to reduce switching Loss and operating loss, ensuring stability, and improving the effect of power quality

Active Publication Date: 2013-07-24
迪比(重庆)智能科技研究院有限公司 +1
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[0010] In the prior art, there is no coordinated operation control between multi-flywheel energy storage units based on the topological structure of the wind farm and the flywheel group, which can effectively take advantage of the advantages of the flywheel energy storage system, that is, there is

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  • Coordination control method applied to flywheel energy storage matrix system of wind power plant
  • Coordination control method applied to flywheel energy storage matrix system of wind power plant
  • Coordination control method applied to flywheel energy storage matrix system of wind power plant

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[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] A method for coordinated control of a flywheel energy storage matrix system applied to a wind farm, the method comprising the following steps:

[0036] 1) Establish a wind farm flywheel energy storage matrix topology, such as figure 2 Shown:

[0037] In a wind farm, multiple sets of wind turbines run simultaneously to generate more electricity. In this case, limited by the energy storage capacity, a single flywheel energy storage unit is not enough to complete the task of energy storage. Therefore, wind farms need to install multiple sets of flywheel energy storage units to complete energy storage tasks.

[0038] A flywheel energy storage matrix system composed of multiple flywheel energy storage units is installed at the outlet of the wind farm, and then these flywheel energy storage units are connected in parallel to a DC...

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Abstract

The invention discloses a coordination control method applied to a flywheel energy storage matrix system of a wind power plant. The method comprises the following steps of: (1) establishing a wind power plant flywheel energy storage matrix topological structure; (2) establishing a control system of a flywheel energy storage matrix; (3.1) performing flywheel energy storage matrix system discharge control, wherein when Prfw is less than or equal to POmaxj, a flywheel energy storage unit j is solely connected, and when Prfw is more than or equal to POmax1, first m flywheel energy storage units with the highest rotation speed need to be selected one by one; and (3.2) performing flywheel energy storage matrix charge control, wherein when the absolute value of Prfw is less than or equal to PImaxj, the flywheel energy storage unit j is solely connected for energy storage, and when the absolute value of Prfw is more than or equal to PImaxn, first m flywheel energy storage units with the lowest rotation speed need to be selected one by one. By virtue of the coordination control method, the advantages of the flywheel energy storage matrix system is given full play more effectively, the unit switching loss and operation loss are reduced, the stability of the flywheel energy storage matrix system and a power system is ensured, and thus the quality of electric energy output from wind power is improved.

Description

technical field [0001] The invention relates to a flywheel control method applied to a wind farm, in particular to a coordinated control method of a flywheel energy storage matrix system applied to a wind farm. Background technique [0002] The flywheel energy storage matrix system composed of multiple flywheel energy storage units can cooperate with renewable energy power systems such as wind power generation to smooth the active output power of the system and stabilize the output voltage of the system, thereby improving the stability of the power system, increasing the renewable energy and network capacity. [0003] Flywheel energy storage technology is a technology that stores electrical energy as the kinetic energy of the flywheel rotor rotation. Through the control of the system, the flywheel energy storage system can store or release energy when necessary, so as to smooth the output active power of the power generation system and compensate the power. The reactive pow...

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Application Information

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IPC IPC(8): H02J3/30
CPCY02E70/30Y02E10/766Y02E60/16Y02E10/76
Inventor 王磊宋永端杜晓强
Owner 迪比(重庆)智能科技研究院有限公司
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