Abstract
Variabilities of renewable energy sources critically challenge contemporary power distribution grids. Depending on grid conditions, solar energy may have to be curtailed to comply with network limitations. On the other hand, smart inverters installed with solar panels enable for reactive power support at fast response rates. Existing energy management schemes may not efficiently integrate intermittent generation. Inherent operational flexibilities, such as flexible voltage regulation margins and instantaneous inverter or distribution line overloading could be judiciously exploited. To that end, an ergodic energy management framework is put forth calling for joint control of active and reactive power using smart inverters. Although tighter operational constraints are enforced in an average sense, looser margins are satisfied at all times. A stochastic dual subgradient solver is devised using an approximate linearized grid model. The algorithm is distributionfree, and enjoys provable convergence. Numerical tests on a 56-bus distribution feeder demonstrate that the novel scheme yields lower energy cost upon its deterministic counterpart.
Original language | English (US) |
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Title of host publication | 2016 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016 - Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 3476-3480 |
Number of pages | 5 |
ISBN (Electronic) | 9781479999880 |
DOIs | |
State | Published - May 18 2016 |
Event | 41st IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016 - Shanghai, China Duration: Mar 20 2016 → Mar 25 2016 |
Publication series
Name | ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings |
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Volume | 2016-May |
ISSN (Print) | 1520-6149 |
Other
Other | 41st IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016 |
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Country/Territory | China |
City | Shanghai |
Period | 3/20/16 → 3/25/16 |
Bibliographical note
Publisher Copyright:© 2016 IEEE.
Keywords
- Power distribution grids
- smart inverters
- stochastic dual subgradient
- voltage regulation