Imperial College London
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Professor Tim Green, FREng

Faculty of Engineering, Department of Electrical and Electronic Engineering

Academic Leader for Sustainability, Professor
 
 
 
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Contact

 

+44 (0)20 7594 6171t.green Website CV

 
 
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Location

 

1107EElectrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Mendonca:2019:10.1109/access.2019.2931955,
author = {Mendonca, TRF and Green, TC},
doi = {10.1109/access.2019.2931955},
journal = {IEEE Access},
pages = {105173--105185},
title = {Distributed active network management based on locally estimated voltage sensitivity},
url = {http://dx.doi.org/10.1109/access.2019.2931955},
volume = {7},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Two challenges need to be addressed in designing active network management (ANM) fordistribution networks that use non-firm connection agreements for quicker and cheaper connections ofdistributed energy resource (DER). First is the replacement of scripted actions based on priority lists byreal-time selection of actions offered as ancillary services and judged on efficacy and cost. Second is theneed to decentralize or distribute ANM decision making to avoid unrealistic communication and computationburdens as the number of controllable devices increases. This paper proposes a distributed form of ANMfor radial networks, based on local estimation of the voltage sensitivities to offered adjustments of real orreactive power and then uses message passing between local controllers to arrive at near-optimum choicesof actions. To manage a voltage constraint, the minimum volume (or cost) of ancillary services is found byselecting services from DERs with highest voltage sensitivity to the service offered. A method of sensitivityestimation for individual nodes is extended to all terms of the inverted Jacobian matrix. The accuracy of thisapproximation is discussed and explored in a case-study network. The format of message passing from onelocal controller to another is described. Simulations demonstrate that the proposed distributed ANM closelyapproaches the solution found by a centralized optimal power flow. It is confirmed that the use of locallyestimated voltage sensitivity to identify the most effective DER can minimize the volume of power flowadjustment service that the ANM needs to manage voltage and thermal constraints.
AU  - Mendonca,TRF
AU  - Green,TC
DO  - 10.1109/access.2019.2931955
EP  - 105185
PY  - 2019///
SN  - 2169-3536
SP  - 105173
TI  - Distributed active network management based on locally estimated voltage sensitivity
T2  - IEEE Access
UR  - http://dx.doi.org/10.1109/access.2019.2931955
UR  - https://ieeexplore.ieee.org/document/8781767
UR  - http://hdl.handle.net/10044/1/73084
VL  - 7
ER  -
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