Abstract
This paper develops an approach to enable the optimal participation of distributed energy resources (DERs) in inertial- and primary-frequency response alongside conventional synchronous generators. Leveraging a reduced-order model description of frequency dynamics, DERs' synthetic inertias and droop coefficients are designed to meet time-domain performance objectives of frequency overshoot and steady-state regulation. Furthermore, an optimization-based method centered around classical economic dispatch is developed to ensure that DERs share the power injections for inertial- and primary-frequency response in proportion to their power ratings. Simulations for a modified New England test-case system composed of ten synchronous generators and six instances of the IEEE 37-node test feeder with frequency-responsive DERs validate the design strategy.
Original language | English (US) |
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Article number | 8269332 |
Pages (from-to) | 5194-5205 |
Number of pages | 12 |
Journal | IEEE Transactions on Power Systems |
Volume | 33 |
Issue number | 5 |
DOIs | |
State | Published - Sep 2018 |
Bibliographical note
Funding Information:Manuscript received June 27, 2017; revised October 23, 2017 and November 30, 2017; accepted December 3, 2017. Date of publication January 25, 2018; date of current version August 22, 2018. This work was supported in part by the U.S. Department of Energy under Contract No. DE-AC36-08GO28308 with the National Renewable Energy Laboratory, in part by the Advanced Research Projects Agency-Energy (ARPA-E) under the Network Optimized Distributed Energy Systems (NODES) program, and in part by the National Science Foundation under the CAREER Award 1453921. Paper no. TPWRS-00965-2017. (Corresponding author: Sairaj V. Dhople.) S. S. Guggilam and S. V. Dhople are with the Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455 USA (e-mail: [email protected]; [email protected]).
Publisher Copyright:
© 1969-2012 IEEE.
Keywords
- Distributed energy resources
- droop control
- inertial response
- model reduction
- primary frequency response
- synthetic inertia