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Offshore wind power electric energy quality data analysis method and system based on wind speed intervals
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A technology of power quality analysis and power quality, applied in the field of electric power, can solve problems such as inaccurate results, and achieve the effects of ensuring effectiveness, high-quality output power, and accurate power quality characteristics
Active Publication Date: 2018-09-18
山东明科电气技术有限公司
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The existing data acquisition and analysis methods do not consider the influence of wind speed, and directly evaluate the power quality of the collected data. Due to the change of environmental factors including wind speed during data collection such as harmonics, flicker, and frequency, the evaluation These factors were not taken into account when the actual collection data and the background environmental factors of the evaluation standard were not the same, the result of the electric energy evaluation was obviously inaccurate
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Embodiment 1
[0052] In a typical implementation of the present application, such as figure 1 As shown, a method and system for data acquisition and analysis of offshore wind power quality data based on wind speed intervals are provided, and the method includes the following steps:
[0053] Step 1: Divide the full wind speed into 12 wind speed intervals according to the wind speed from weak to strong.
[0054] In this embodiment, the wind speed of the wind farm is divided into 12 wind speed intervals, namely 3m / s~4m / s, 4m / s~5m / s, 5m / s~6m / s, 6m / s~7m / s, 7m / s / s~8m / s, 8m / s~9m / s, 9m / s~10m / s, 10m / s~11m / s, 11m / s~12m / s, 12m / s~13m / s, 13m / s ~14m / s, 14m / s~15m / s.
[0055] Step 2: The monitoring device collects the AC and DC voltage and current of the wind farm grid in each wind speed interval, and transmits the collected data to the master station according to a certain period.
[0056] In this embodiment, the monitoring device uploads the collected data to the master station in a periodic manner. ...
Embodiment 2
[0109] The purpose of this embodiment is to provide an offshore wind power quality data acquisition and analysis system based on wind speed intervals, such as image 3 shown.
[0111] The power quality data acquisition device includes a synchronous signalprocessing module, a high-precision synchronous acquisition module, a data screening and statistical analysis module;
[0113] Described high-precision synchronous acquisition module comprises synchronous data acquisition DSP, two-way RAM and GPS second pulse signal, and GPS second pulse signal is accurate ti...
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technical field [0001] The invention relates to the field of electric power technology, in particular to a method and system for collecting and analyzing offshore wind powerquality data based on wind speed intervals. Background technique [0002] In order to cope with changes in the climate and environment and advocate the sustainable development of the earth and human beings, the world's energy is transforming to a low-carbon and non-carbon development model. Renewable energy (including wind energy, biomass energy, solar energy, geothermal energy and ocean energy) is rapidly rising in the non-fossil energy consumption structure, and will become the fastest growing energy source in the future and the largest source of future electricity growth, of which wind power is The "main force" of renewable energy power generation. With the excellent onshore wind power resources being carve up, global wind farm construction has shown a trend of shifting from land to intertidal zone a...
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