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Wind power plant ultrasonic wave wind resource monitoring method

A wind resource and ultrasonic technology, applied in the field of wind resource monitoring, can solve problems such as uncontrollable power grid and wind power uncertainty, and achieve the effect of monitoring output fluctuations

Inactive Publication Date: 2014-07-23
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

With the continuous increase of wind power grid-connected scale, the uncertainty and uncontrollability of wind power have brought many problems to the safe, stable and economical operation of the power grid.

Method used

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  • Wind power plant ultrasonic wave wind resource monitoring method
  • Wind power plant ultrasonic wave wind resource monitoring method

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Embodiment Construction

[0020] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0021] Such as figure 1 As shown, a wind farm ultrasonic wind resource monitoring method includes, step 101, the clock starts timing, and performs clock synchronization on the clock server at the data receiving end;

[0022] Step 102, trigger an interrupt according to the set time interval, save the scene to the stack when the interrupt is interrupted, pop it from the stack and restore the scene after the interrupt returns;

[0023] Step 103, the ultrasonic probe starts to transmit signals, thereby monitoring the wind resource data of the wind farm;

[0024] Step 104, after filtering and processing the wind resource data collected above to obtain a received signal;...

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Abstract

The invention discloses a wind power plant ultrasonic wave wind resource monitoring method. The method includes the following steps that when a clock is started to reckon time, the clock and a clock server at the data receiving end are subjected to clock synchronization; interruption is triggered according to a set time interval, in the interruption process, a site is saved into a stack, and after the interruption returns, the site is popped up from the stack and recovered; an ultrasonic probe starts to transmit a signal so that wind resource data of a wind power plant can be monitored; after the acquired wind resource data are filtered and processed in other mode, received signals are obtained; the ultrasonic probe is used for calculating the wind speed and the wind direction through signal receiving and transmitting time difference between the received signals; a timestamp is added to a result obtained through data calculation, and packaging is performed; the interruption returns to the site, packaging data are transmitted to a master program; after the packaging data are uploaded by the master program, the interruption is triggered again on a next time point. Therefore, wind resources of the wind power plant can be monitored in real time, and the output power fluctuation phenomenon caused by large-scale wind and power centralized grid connection can be effectively monitored.

Description

technical field [0001] The invention relates to the technical field of wind resource monitoring in the process of new energy power generation, in particular to an ultrasonic wind resource monitoring method for a wind farm. Background technique [0002] Most of the large-scale new energy bases generated after my country's wind power enters the stage of large-scale development are located in the "three north regions" (Northwest, Northeast, and North China). Large-scale new energy bases are generally far away from the load center, and their power needs to be transmitted to load center for consumption. Due to the intermittency, randomness and volatility of wind resources, the wind power generation output of large-scale new energy bases will fluctuate in a large range, which will further lead to fluctuations in the charging power of the transmission network, and bring a series of problems to the safety of power grid operation. question. [0003] As of April 2014, Gansu grid-conn...

Claims

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Application Information

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IPC IPC(8): G01P5/24G01P13/02
Inventor 汪宁渤路亮王定美刘光途吕清泉陈钊
Owner STATE GRID CORP OF CHINA
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