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) |
|---|---|
| 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
Publisher Copyright:© 1969-2012 IEEE.
Keywords
- Distributed energy resources
- droop control
- inertial response
- model reduction
- primary frequency response
- synthetic inertia
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