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This article proposes a novel method for short-term wind power forecasting, which combines the wavelet transform, particle swarm optimization dynamic gray model and Lyapunov exponent prediction method. First, the approach decomposes the wind power curve into the high-frequency and low-frequency curves by wavelet transform, which represent the detail and tendency signals, respectively. Then, we use the proposed particle swarm optimization dynamic gray model to forecast the low-frequency curve with its smooth and periodic outline. Moreover, Lyapunov exponent prediction method is used to predict high-frequency curves, which possess the chaos characteristics. Finally, we obtain the wind power forecasting result from the combination of the predicted low and high frequencies. The experiment of four seasons in an US wind farm validates that the proposed method is effective in solving the short-term wind power forecasting problem. The obtained results, discussed comprehensively, show that the hybrid method has better prediction accuracy than the other methods, such as artificial neural network, persistence, and autoregressive integrated moving average model, with the lowest average mean absolute percentage error is 8.07% and the average root mean square error is 0.8164 over four seasons.<\/jats:p>","DOI":"10.1177\/0959651819887261","type":"journal-article","created":{"date-parts":[[2019,11,20]],"date-time":"2019-11-20T06:54:05Z","timestamp":1574232845000},"page":"937-947","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Forecast of short-term wind power based on a novel hybrid method"],"prefix":"10.1177","volume":"234","author":[{"given":"Dinghui","family":"Wu","sequence":"first","affiliation":[{"name":"Engineering Research Center of Internet of Things Technology Applications Ministry of Education, Jiangnan University, Wuxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Haibo","family":"Huang","sequence":"additional","affiliation":[{"name":"Engineering Research Center of Internet of Things Technology Applications Ministry of Education, Jiangnan University, Wuxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ren","family":"Xiao","sequence":"additional","affiliation":[{"name":"Engineering Research Center of Internet of Things Technology Applications Ministry of Education, Jiangnan University, Wuxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cong","family":"Gao","sequence":"additional","affiliation":[{"name":"Engineering Research Center of Internet of Things Technology Applications Ministry of Education, Jiangnan University, Wuxi, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2019,11,20]]},"reference":[{"key":"bibr1-0959651819887261","first-page":"38","volume":"87","author":"Odgaard PF","year":"2015","journal-title":"Renew Energy"},{"key":"bibr2-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1016\/j.rser.2016.11.168"},{"key":"bibr3-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1016\/j.rser.2014.12.012"},{"key":"bibr4-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1016\/j.rser.2016.01.114"},{"key":"bibr5-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1016\/j.enconman.2016.04.036"},{"key":"bibr6-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1016\/j.rser.2016.01.106"},{"key":"bibr7-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1109\/TII.2016.2543004"},{"key":"bibr8-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1016\/j.apenergy.2017.04.017"},{"key":"bibr9-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1109\/TPWRS.2006.879246"},{"key":"bibr10-0959651819887261","first-page":"1","volume-title":"Proceedings of the 2013 IEEE Grenoble conference","author":"Cao Y"},{"key":"bibr11-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1016\/j.renene.2016.12.071"},{"key":"bibr12-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1016\/j.apenergy.2016.11.111"},{"key":"bibr13-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1109\/TII.2015.2431642"},{"key":"bibr14-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1016\/j.engappai.2015.12.011"},{"key":"bibr15-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1016\/j.eswa.2013.08.006"},{"key":"bibr16-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1016\/j.energy.2014.05.065"},{"key":"bibr17-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1109\/TSG.2015.2430286"},{"key":"bibr18-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcss.2014.12.011"},{"issue":"1","key":"bibr19-0959651819887261","first-page":"50","volume":"2","author":"Catalao JPS","year":"2011","journal-title":"IEEE T Sust Energy"},{"key":"bibr20-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1016\/0167-2789(85)90011-9"},{"key":"bibr21-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1016\/S0167-2789(98)00240-1"},{"key":"bibr22-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1063\/1.4939543"},{"key":"bibr23-0959651819887261","doi-asserted-by":"publisher","DOI":"10.1080\/15435075.2011.647170"},{"key":"bibr24-0959651819887261","unstructured":"National Renewable Energy Laboratory. 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