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A method and apparatus for traverse control

A control method and control device technology, applied in the direction of circuit devices, AC network circuits, electrical components, etc., can solve problems such as poor stability, low safety, and low efficiency

Active Publication Date: 2019-01-22
维谛新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a ride-through control method and device to solve the problems of poor stability, low safety and low efficiency in existing power generation systems

Method used

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  • A method and apparatus for traverse control
  • A method and apparatus for traverse control
  • A method and apparatus for traverse control

Examples

Experimental program
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Effect test

Embodiment 1

[0064] In order to solve the problems of poor stability, low security and low efficiency existing in the existing power generation system, the embodiment of the present invention provides a ride-through control method, which can be applied to such as figure 2 In the power generation system shown. Wherein, the power generation system may include a generator 21, a transformer 22, a switching device 23, a ride-through device 24, and a power grid 25; image 3 As shown in , it is a schematic flowchart of the traversal control method described in the embodiment of the present invention. Specifically, by image 3 It can be seen that the traversal control method may include the following steps:

[0065] Step 301: collecting status information of the power generation system; the status information includes voltage information of the generator or the power grid;

[0066] Step 302: According to the status information, determine whether the power generation system is working in a norm...

Embodiment 2

[0144] Based on the same inventive concept as that of Embodiment 1 of the present invention, Embodiment 2 of the present invention provides a ride-through control device, such as Figure 12 As shown in , it is a schematic structural diagram of the ride-through control device described in the embodiment of the present invention. Specifically, by Figure 12 It can be seen that the ride-through control device can be applied to power generation systems (such as Figure 12 shown), the power generation system includes generators, transformers, ride-through equipment and power grids; the ride-through control device may include:

[0145] The collection module 1201 is configured to collect status information of the power generation system; the status information includes voltage information of the generator or the power grid;

[0146] Judging module 1202, which can be used to judge whether the power generation system is working in a normal mode;

[0147] The processing module 1203 c...

Embodiment 3

[0157] Embodiment 3 of the present invention provides a computing device, such as Figure 13 As shown in , it is a schematic structural diagram of the computing device described in the embodiment of the present invention. Specifically, the computing device may be a desktop computer, a portable computer, a smart phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA) and the like. Specifically, the computing device described in the embodiment of the present invention may include a central processing unit (Center Processing Unit, CPU) 1301, a memory 1302, an input device 1303, and an output device 1304, etc., and the input device 1303 may include a keyboard, a mouse, a touch screen, etc. , the output device 1304 may include a display device, such as a liquid crystal display (Liquid Crystal Display, LCD), a cathode ray tube (Cathode Ray Tube, CRT), and the like.

[0158] The memory 1302 may include a read only memory (ROM) and a random access mem...

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Abstract

The invention discloses a method and apparatus for traverse control, which are applied to a power generation system including a generator, a transformer, a switching device, a crossing device and a power network. The method includes following steps of collecting state information of the power generation system; judging whether the power generation system operates in a normal mode according to thestate information; If yes, communicating with the first path to ensure the operation of the power network by the generator through the first path, and performing soft start of the crossing equipment according to the voltage input to the power network; If not, connecting a second path to send reactive current and active current to the power network, and operating voltage to the generator. Comparedwith the prior art, the traversing device can be switched to different working channels under different working modes, and the stability and safety of the power network and the generator can be ensured. Also, in a normal mode, a soft start through the device can be accomplished, thereby also traversing to boost efficiency.

Description

technical field [0001] The present invention relates to the technical field of voltage ride-through control, in particular to a ride-through control method and device. Background technique [0002] With the gradual promotion of green energy, power generation technology has attracted attention from all walks of life. Taking wind power generation as an example, such as figure 1 As shown, a traditional wind power grid-connected power generation system generally includes a wind generator 11 with a rotor, a box-type transformer 12 and a power grid 13 . Among them, the wind generator 11 can convert wind energy into electrical energy, and can transmit the generated electrical energy to the power grid 13 through the box-type transformer 12, so as to realize the purpose of power supply. [0003] However, in this power generation system, when the voltage on the power grid 13 fluctuates greatly, such as dropping to 85% and below, or rising to 115% and above. If you choose to continu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/46
CPCH02J3/382H02J3/46
Inventor 李立冬
Owner 维谛新能源有限公司
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