This paper proposes a strategy to regulate active-And reactive-power injections of a collection of dispatchable inverters so that the distribution feeder where they are installed can, in aggregate, track active-And reactive-power regulation signals issued by a higher-level aggregator. At its core, the proposed method relies on the linear mapping of nodal active-And reactive-power injections to the active and reactive power injected into the bulk transmission grid and a linear-quadratic-regulator (LQR) controller. We demonstrate the effectiveness of the proposed LQR controller using regulation signals from Pennsylvania-New Jersey-Maryland Interconnection (PJM) for a collection of 15 inverters (each with a 15th-order model capturing phase locked loop, LCL filter, power-And current-controller dynamics) installed in a modified IEEE 37-bus distribution feeder. We also evaluate the ability of the proposed controller to track regulation signals with different sampling and dispatch rates.
|Original language||English (US)|
|Title of host publication||2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|State||Published - Jun 2019|
|Event||20th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2019 - Toronto, Canada|
Duration: Jun 17 2019 → Jun 20 2019
|Name||2019 IEEE 20th Workshop on Control and Modeling for Power Electronics, COMPEL 2019|
|Conference||20th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2019|
|Period||6/17/19 → 6/20/19|
Bibliographical noteFunding Information:
Funding support from the Natural Sciences and Engineering Research Council of Canada (NSERC), funding reference numbers RGPIN-2016-04271 and PGSD3-519078-2018, and from the National Science Foundation (NSF) through grant ECCS-1453921 is greatly appreciated.