A Study on the Wind Power Generation Fluctuation of Multiple Sites

Yamagishi, Yoshio; Ueda, Tomoyuki; Kanao, Norikazu; Komami, Shintaro

doi:10.1541/ieejpes.129.661

Cited by 16 publications

(7 citation statements)

References 3 publications

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“…(3). According to Ref 6,. the swing period in wind power generation is approximately 48 hours (0.0000058 Hz), and Irradiance fluctuation profiles of the sites (15 sites).…”

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confidence: 99%

A Method for Presuming Total Output Fluctuation of Highly Penetrated Photovoltaic Generation Considering Mutual Smoothing Effect

Nagoya

Komami

Ogimoto

2013

Electrical Engineering Japan

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SUMMARYMutual 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.

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“…(3). According to Ref 6,. the swing period in wind power generation is approximately 48 hours (0.0000058 Hz), and Irradiance fluctuation profiles of the sites (15 sites).…”

mentioning

confidence: 99%

A Method for Presuming Total Output Fluctuation of Highly Penetrated Photovoltaic Generation Considering Mutual Smoothing Effect

Nagoya

Komami

Ogimoto

2013

Electrical Engineering Japan

Self Cite

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“…10 However, correlation coefficients set by the proposed method cover short-period fluctuations as well. Fluctuations of wind speed are known to become more random and uncorrelated with shorter fluctuation period; on the contrary, fluctuations of longer period are more correlated and synchronized.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…Fluctuations of wind speed are known to become more random and uncorrelated with shorter fluctuation period; on the contrary, fluctuations of longer period are more correlated and synchronized. 10 However, correlation coefficients set by the proposed method cover short-period fluctuations as well. That is, one can assume that smoothing of correlated components did not work properly in the context of almost uncorrelated and easily smoothable short-period fluctuations in measured data; as a result, many short-period fluctuations remained.…”

Section: Simulation Resultsmentioning

confidence: 99%

A Generation Method of Artificial Fluctuation Data of Wind Power Output Considering Smoothing Effect

2018

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To use realistic wind power fluctuation data is important in simulating frequency change of power systems. It is well known that the smoothing effect must be taken into account when generating the artificial wind power output. Therefore, this paper proposed a new method to generate fluctuation waveform considering smoothing effect based on random number to fulfill the correlation among multiple sites and autoregression model. The effectiveness of the proposed method was tested by using practical wind speed data measured in Tohoku district. K E Y W O R D Sautoregressive model, correlation analysis, FFT, smoothing effect, wind power Electr Eng Jpn. 2019;208:27-34.

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“…As to fluctuation of highly penetrated RE, qualitative research results are already reported, but quantitative estimation methods have not been reported as yet. Qualitatively, it has been confirmed that the total output fluctuations of RE with a wide geographical distribution are smaller than the sum of the individual fluctuations (the so‐called smoothing effect ). This smoothing effect should be taken into account when considering LFC in the case of high penetration of RE quantitatively.…”

Section: Introductionmentioning

confidence: 88%

A method for load frequency control using battery in power system with highly penetrated photovoltaic generation

Nagoya

Komami

Ogimoto

2013

Electrical Engineering Japan

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It is generally believed that large battery systems will be needed to store surplus electric energy due to the high penetration of renewable energy (RE) such as photovoltaic generation (PV). Since the main objective of high penetration of RE is to reduce CO 2 emissions, reducing kWh output of thermal generation that emits large amounts of CO 2 in power systems should be sufficiently considered. However, thermal generation plays an important role in load frequency control (LFC) of power systems. Therefore, if LFC could be performed with batteries and hydropower generation, the kWh output of thermal generation could be reduced significantly. This paper presents a method of LFC using batteries in a power system with highly penetrated PVs. An assessment of the effect of the proposed method considering mutual smoothing effect of highly penetrated PVs is made.

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A Study on the Wind Power Generation Fluctuation of Multiple Sites

Cited by 16 publications

References 3 publications

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

A Generation Method of Artificial Fluctuation Data of Wind Power Output Considering Smoothing Effect

A method for load frequency control using battery in power system with highly penetrated photovoltaic generation

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