Abstract
Power networks have to withstand a variety of disturbances that affect system frequency, and the problem is compounded with the increasing integration of intermittent renewable generation. Following a large-signal generation or load disturbance, system frequency is arrested leveraging primary frequency control provided by governor action in synchronous generators. In this work, we propose a framework for distributed energy resources (DERs) deployed in distribution networks to provide (supplemental) primary frequency response. Particularly, we demonstrate how power-frequency droop slopes for individual DERs can be designed so that the distribution feeder presents a guaranteed frequency-regulation characteristic at the feeder head. Furthermore, the droop slopes are engineered such that injections of individual DERs conform to a well-defined fairness objective that does not penalize them for their location on the distribution feeder. Time-domain simulations for an illustrative network composed of a combined transmission network and distribution network with frequency-responsive DERs are provided to validate the approach.
Original language | American English |
---|---|
Number of pages | 10 |
State | Published - 2017 |
Event | 2017 American Control Conference - Seattle, Washington Duration: 24 May 2017 → 26 May 2017 |
Conference
Conference | 2017 American Control Conference |
---|---|
City | Seattle, Washington |
Period | 24/05/17 → 26/05/17 |
NREL Publication Number
- NREL/CP-5D00-67883
Keywords
- distributed energy resources
- distribution systems
- primary frequency response
- virtual power plants