A Method for Presuming Total Output Fluctuation of Highly Penetrated Photovoltaic Generation Considering Mutual Smoothing Effect
A Method for Presuming Total Output Fluctuation of Highly Penetrated Photovoltaic Generation Considering Mutual Smoothing Effect
复制标题
考虑相互平滑效应的高渗透光伏发电总出力波动推定方法
DOI：
10.1002/eej.22327
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发表时间：
2014
影响因子：
0.4
通讯作者：
K. Ogimoto
中科院分区：
文献类型：
--
作者：
Hiroyuki Nagoya;Shintaro Komami;K. Ogimoto
可再生能源（RE）的相互平滑效应是非常重要的，因为用于维持电力系统的健全性的对策的数量和成本高度依赖于效果的评估。尽管它很重要，但至今还没有确定的方法来评估其效果。本文提出了一种根据少量实测数据，考虑稀土元素渗透率的影响，推测稀土元素渗透率波动总量的方法。通过分析测量数据，现有的光伏（PV）输出波动被揭示为相干在较慢的摆动周期和随机在较快的摆动周期。为了表征光伏发电系统的输出波动趋势，引入了“转移假说”。还介绍了“恒定传输摆动周期假设”和“-20 dB/dec斜率假设”。这些假设是通过直接和间接的方法使用实测数据进行验证。只有3个站点的数据能够成功地推测15个站点的总波动。在15个站点中，每2个站点的距离与转换摆动周期之间的关系与这些假设一致。最后，作者展示了使用所提出的方法在北陆地区高度渗透的光伏部署的总波动假设。© 2013威利期刊公司. Electr Eng Jpn，186（3）：31-42，2014;在线发表于Wiley Online Library（wileyonlinelibrary.com）。DOI 10.1002/eej.22327
Mutual smoothing effect of renewable energy (RE) is quite important because the amount and cost of countermeasures for maintaining soundness of power systems highly depend on evaluation of the effect. In spite of its importance, there is as yet no established method to evaluate the effect. The authors present a method for presuming the total output fluctuations of highly penetrated RE from a few measured data considering the effect. By analyzing the measured data, existing photovoltaic (PV) output fluctuations are revealed to be coherent at slower swing periods and random at faster swing periods. To represent the PV’s output fluctuation tendencies, a “Transfer Hypothesis” is introduced. A “Constant Transfer Swing Period Hypothesis” and “–20 dB/dec Slope Hypothesis” are also introduced. These hypotheses are verified by direct and indirect methods using the measured data. Only 3 sites’ data are able to presume total fluctuation of 15 sites successfully. The relationship between distance and the transfer swing period for every 2 sites out of the 15 sites agrees with these hypotheses. Finally, the authors show the total fluctuation presumption of highly penetrated PV deployment in the Hokuriku region using the proposed methods. © 2013 Wiley Periodicals, Inc. Electr Eng Jpn, 186(3): 31–42, 2014; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.22327