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Title: | A novel voltage regulation strategy for secure operation of high renewable penetrated distribution networks with different R/X and topologies | Authors: | Hu, Q Bu, S Xia, S Cai, H |
Issue Date: | 2019 | Source: | 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia), 21-24 May 2019, Chengdu, China, p. 3424-3429 | Abstract: | Based on a newly developed simulation platform, this paper proposes a fully distributed phase-independent voltage regulation strategy. The strategy offers both real and reactive power support options from distributed energy resources (DERs) and accommodates the impact of different R/X of the lines and different topologies of a distribution network. A linear sensitivity analysis is first carried out to explain the essential impact mechanism of R/X on the voltage sensitivity. Then a perturbation approach, as the substitute of conventional Jacobian analysis, is employed for an accurate voltage sensitivity analysis on a three-phase unbalanced nonlinear distribution network model. The impact of R/X on the voltage sensitivity is quantified, which can then be used to indicate which type of power and critical bus can provide the most effective voltage support under the specific R/X in the planning stage of the regulation strategy. It also provides a guidance for DERs droop constant tuning during the operational stage to ensure the effectiveness of the proposed strategy. The voltage regulation includes two stages: the first is consensus stage based on the consensus algorithm to achieve an average voltage deviation without the need of central controllers; the second is droop control stage to proportionally allocate the available P/Q of DERs. The modified IEEE-13 bus distribution network with different R/X and topologies is used for the case study. Results verify that the proposed regulation strategy can effectively deal with the unbalanced voltage problems in the network. | Keywords: | Consensus control Distributed energy sources Distribution network R/X Voltage regulation |
Publisher: | Institute of Electrical and Electronics Engineers | ISBN: | 978-1-7281-3520-5 (Electronic ISBN) 978-1-7281-3519-9 (USB ISBN) 978-1-7281-3521-2 (Print on Demand(PoD) ISBN) |
DOI: | 10.1109/ISGT-Asia.2019.8881753 | Rights: | © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The following publication Q. Hu, S. Bu, S. Xia and H. Cai, "A Novel Voltage Regulation Strategy for Secure Operation of High Renewable Penetrated Distribution Networks with Different R/X and Topologies," 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia), 2019, pp. 3424-3229 is available at https://doi.org/10.1109/ISGT-Asia.2019.8881753 |
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Hu_Novel_Voltage_Regulation.pdf | Pre-Published version | 1.83 MB | Adobe PDF | View/Open |
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