Grid-connection control method for wind generator sets

A technology of wind power generators and control methods, applied in wind power generation, electrical components, circuit devices, etc., can solve the problems of large power grid impact and influence, poor anti-interference ability, and limited room for improvement of power generation efficiency, and achieve reduction Effects of impact and impact, optimized topology, and improved transmission efficiency

Active Publication Date: 2018-11-13
TIANJIN UNIV
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Problems solved by technology

[0003] The existing wind power technology has the following deficiencies: (1) The improvement of efficiency mainly stays at the level of power generation efficiency, but the room for improving power generation efficiency is limited; (2) Ea

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  • Grid-connection control method for wind generator sets
  • Grid-connection control method for wind generator sets
  • Grid-connection control method for wind generator sets

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[0022] The technical solutions of the present invention will be described and illustrated in a clear and complete manner in combination with the embodiments and the accompanying drawings, but they are not intended to limit the scope of protection of the present application.

[0023] The present invention adopts a flexible interconnection system of wind power generators (see Figure 1-5 ), including the wind turbine flexible interconnection network 1 and the control part 2. The two parts coordinate with each other to realize the collective grid connection of the wind turbine network.

[0024] The wind turbine flexible interconnection network 1 includes multiple wind turbines 11, multiple routing converters 12, and multiple feeders 13; the wind turbine 11 is a power generation unit, which inputs wind energy and outputs electrical energy, and is a component of the wind turbine flexible interconnection network 1. Node; the wind turbine 11 includes a part of the interconnected wind turb...

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Abstract

The invention relates to a grid-connection control method for wind generator sets. The adopted system comprises two parts, namely a flexible interconnect network for the wind generator sets and a control part; an upper computer transmits parameters to a route controller; the route controller outputs a control signal to all route converters; one route converter executes connection or disconnectionwith the other route converters and achieves integration and redistribution of all input current; and power parameters of the flexible interconnect network are transmitted to the upper computer to display, thereby achieving interconnection of the wind generator sets and flexible changes of current magnitudes and current directions of feeders; and all electric energy transmitted from the flexible interconnect network for the wind generator sets is finally collected to networked wind generator sets and the networked wind generator sets output the electric energy to a power grid, thereby achieving grid-connection of all wind generator sets in the whole flexible interconnect network for the wind generator sets.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a grid-connected control method for wind power generators. Background technique [0002] Electric power resources are an indispensable part of people's daily life and engaged in industrial and agricultural activities, but the long-term application of thermal power generation technology has made environmental pollution increasingly serious and non-renewable resources increasingly scarce. Therefore, new energy power generation technologies such as wind power generation have developed rapidly in the past ten years. The essence of wind power generation is to convert natural wind energy into electrical energy that can be directly used by users. Therefore, improving the efficiency of wind power generation technology at all levels and enhancing the reliability of wind power generation systems has become the basis for expanding the scale of wind farms. Only in this way can the prop...

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Application Information

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IPC IPC(8): H02J3/38
CPCH02J3/386Y02E10/76
Inventor 于海涛孟紫寒王江邓斌魏熙乐张镇
Owner TIANJIN UNIV
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