A Novel, Stable, and Economic Power Sharing Scheme for an Autonomous Microgrid in the  Energy Internet

Yan, Bingke; Wang, Bo; Zhu, Lin; Liu, Hesen; Liu, Yilu; Ji, Xingpei; Liu, Dichen

doi:10.3390/en81112338

Open AccessArticle

A Novel, Stable, and Economic Power Sharing Scheme for an Autonomous Microgrid in the Energy Internet

by

Bingke Yan

¹,

Bo Wang

^1,*,

Lin Zhu

²,

Hesen Liu

²,

Yilu Liu

²,

Xingpei Ji

¹ and

Dichen Liu

¹

School of Electrical Engineering, Wuhan University, Wuhan 430072, China

²

Department of Electrical Engineering and Computer Science, the University of Tennessee, Knoxville, TN 37996, USA

^*

Author to whom correspondence should be addressed.

Energies 2015, 8(11), 12741-12764; https://doi.org/10.3390/en81112338

Submission received: 16 September 2015 / Revised: 2 November 2015 / Accepted: 4 November 2015 / Published: 11 November 2015

(This article belongs to the Special Issue Decentralized Management of Energy Streams in Smart Grids)

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Abstract

With a higher penetration of distributed generation in the power system, the application of microgrids is expected to increase dramatically in the future. This paper proposes a novel method to design optimal droop coefficients of dispatchable distributed energy resources for a microgrid in the Energy Internet considering the volatility of renewable energy generation, such as wind and photovoltaics. The uncertainties of renewable energy generation are modeled by a limited number of scenarios with high probabilities. In order to achieve stable and economical operation of a microgrid that is also suitable for plug-and-play distributed renewable energy and distributed energy storage devices, a multi-objective optimization model of droop coefficients compromising between operational cost and the integral of time-weighted absolute error criterion is developed. The optimization is solved by using a differential evolution algorithm. Case studies demonstrate that the economy and transient behavior of microgrids in the Energy Internet can both be improved significantly using the proposed method.

Keywords: microgrid; energy internet; plug-and-play; multi-objective optimization; integral of time-weighted absolute error

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MDPI and ACS Style

Yan, B.; Wang, B.; Zhu, L.; Liu, H.; Liu, Y.; Ji, X.; Liu, D. A Novel, Stable, and Economic Power Sharing Scheme for an Autonomous Microgrid in the Energy Internet. Energies 2015, 8, 12741-12764. https://doi.org/10.3390/en81112338

AMA Style

Yan B, Wang B, Zhu L, Liu H, Liu Y, Ji X, Liu D. A Novel, Stable, and Economic Power Sharing Scheme for an Autonomous Microgrid in the Energy Internet. Energies. 2015; 8(11):12741-12764. https://doi.org/10.3390/en81112338

Chicago/Turabian Style

Yan, Bingke, Bo Wang, Lin Zhu, Hesen Liu, Yilu Liu, Xingpei Ji, and Dichen Liu. 2015. "A Novel, Stable, and Economic Power Sharing Scheme for an Autonomous Microgrid in the Energy Internet" Energies 8, no. 11: 12741-12764. https://doi.org/10.3390/en81112338

APA Style

Yan, B., Wang, B., Zhu, L., Liu, H., Liu, Y., Ji, X., & Liu, D. (2015). A Novel, Stable, and Economic Power Sharing Scheme for an Autonomous Microgrid in the Energy Internet. Energies, 8(11), 12741-12764. https://doi.org/10.3390/en81112338

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A Novel, Stable, and Economic Power Sharing Scheme for an Autonomous Microgrid in the Energy Internet

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