Algorithm for stably adjusting whole-field fan output
A technology of wind turbine output and full field, applied in the control of wind turbines, wind turbines, engines, etc., can solve the problems of grid active and reactive power balance scheduling difficulties, large randomness and volatility, and difficulty in ensuring power generation quality. The effect of high reliability, increased power generation, and reduced impact
Inactive Publication Date: 2016-10-26
青岛华创风能有限公司 +3
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Problems solved by technology
[0002] Due to the unstable wind conditions of the wind farm, its randomness and volatility are large, so the output of the wind farm is also random, and the characteristics of wind power make it difficult to guarantee the quality of power generation, which brings difficulties to the balance of active and reactive power in the grid.
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[0017] refer to figure 1 , an algorithm for stably adjusting the fan output of the whole field, including the following steps:
[0018] S1. The artificially preset wind farm should reach the total power value P of the whole field 设定值 , to obtain the current total power of the wind farm P 当前总功率 , to obtain the value of the fluctuation range of the total power of the wind farm per minute P 一分钟波动值 , and the range value P of the total power fluctuation range of the wind farm every ten minutes 十分钟波动值 . This embodiment P 一分钟波动值 One-tenth of the current total power of the whole field, P 十分钟波动值 It is one-third of the current total power of the audience, of course P 一分钟波动值 and P 十分钟波动值 It is not limited to one-tenth and one-third of the current total power of the whole field, and the specific value should be adapted to different power grids and wind farms.
[0019] S2. Collect the current total power value of the whole field according to the unit time interval, and calculate th...
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The invention provides an algorithm for stably adjusting the whole-field fan output. The P set value is preset manually, the P current total power, the P one-minute fluctuating value and the P ten-minute fluctuating value are obtained, the P one-minute maximum value, the P one-minute minimum value, the P ten-minute maximum value and the P ten-minute minimum value are calculated, the P set value is compared with the P current total power, the P current power upper limit, the P one-minute fluctuating upper limit and the P ten-minute fluctuating upper limit are calculated, the minimum value is selected for power increase, or the P current power upper limit, the P one-minute fluctuating lower limit and the P ten-minute fluctuating lower limit are calculated, and the maximum value is selected for power reduction. Under the condition that the wind speed changes randomly, the whole-field fan output can rise or drop stably as well, the fan output is increased to the maximum degree, the whole-field total output is guaranteed, generating capacity is improved, meanwhile the influence of fan power changes on a power grid is reduced greatly, and reliability is high.
Description
technical field [0001] The invention belongs to the technical field of power regulation of wind power generation, and in particular relates to an algorithm for stably regulating the output of wind turbines in the whole field. Background technique [0002] Due to the unstable wind conditions of the wind farm, its randomness and volatility are large, so the output of the wind farm is also random. Such characteristics of wind power make it difficult to guarantee the quality of power generation, which brings difficulties to the balance of active and reactive power in the grid. Contents of the invention [0003] The invention provides an algorithm for stably adjusting the output of the fans in the whole field. In the case of random changes in the wind speed, the output of the fans in the whole field can also rise or fall steadily, and the reliability is high. [0004] An algorithm for stably adjusting the output of fans in the whole field provided by the present invention inclu...
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IPC IPC(8): F03D7/00
CPCF03D7/00F05B2270/1033Y02E10/72
Inventor 赵明武王松乔孟磊高伟
Owner 青岛华创风能有限公司