Energies 2013, 6(12), 6423-6438; doi:10.3390/en6126423
Article

Operation Optimization Based on the Power Supply and Storage Capacity of an Active Distribution Network

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Received: 20 August 2013; in revised form: 4 December 2013 / Accepted: 5 December 2013 / Published: 11 December 2013
(This article belongs to the Special Issue Smart Grids: The Electrical Power Network and Communication System)
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Abstract: Due to the interconnection and active management of Distributed Generation (DG) and Energy Storage Systems (ESSs), the traditional electrical distribution network has become an Active Distribution Network (ADN), posing challenges to the operation optimization of the network. The power supply and storage capacity indexes of a Local Autonomy Control Region (LACR), which consists of DGs, ESSs and the network, are proposed in this paper to quantify the power regulating range of a LACR. DG/ESS and the network are considered as a whole in the model of the indexes, considering both network constraints and power constraints of the DG/ESS. The index quantifies the maximum LACR power supplied to or received from ADN lines. Similarly, power supply and storage capacity indexes of the ADN line are also proposed to quantify the maximum power exchanged between ADN lines. Then a practical algorithm to calculate the indexes is presented, and an operation optimization model is proposed based on the indexes to maximum the economic benefit of DG/ESS. In the optimization model, the power supply reliability of the ADN line is also considered. Finally, the indexes of power supply and storage capacity and the optimization are demonstrated in a case study.
Keywords: distributed generation; energy storage system; renewable energy; active distribution network; local autonomy control region
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Yu, W.; Liu, D.; Huang, Y. Operation Optimization Based on the Power Supply and Storage Capacity of an Active Distribution Network. Energies 2013, 6, 6423-6438.

AMA Style

Yu W, Liu D, Huang Y. Operation Optimization Based on the Power Supply and Storage Capacity of an Active Distribution Network. Energies. 2013; 6(12):6423-6438.

Chicago/Turabian Style

Yu, Wenpeng; Liu, Dong; Huang, Yuhui. 2013. "Operation Optimization Based on the Power Supply and Storage Capacity of an Active Distribution Network." Energies 6, no. 12: 6423-6438.


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