TY - GEN
T1 - Controlled Primary Frequency Support for Asynchronous AC Areas through an MTDC Grid
AU - Vennelaganti, Sai Gopal
AU - Chaudhuri, Nilanjan Ray
N1 - Funding Information:
V. CONCLUSION A minimal-communication-based scheme for provision of controlled primary frequency support is proposed. Under nominal operating condition, only voltage droop was active and frequency droop remained inactive to let the AC areas operate asynchronously. When frequency support was required, communication of basic information via a distress signal initiated appropriate actions. For AC-side disturbances, the frequency droop was activated with values that are predesigned through the proposed design procedure based on a generic Nth-order model. The approach revealed deeper insights into the frequency-droop control mechanism. For converter outage, the power references are modified in a way that the DC power redistribution does not or minimally affect the AC-side frequencies. Simulation studies conformed with the requirements considered for design and thereby established the effectiveness of the proposed strategies. ACKNOWLEDGMENT This work was supported by funding from NSF Award ECCS 1656983.
Funding Information:
This work was supported by funding from NSF Award ECCS 1656983
PY - 2018/12/21
Y1 - 2018/12/21
N2 - Provision of controlled primary frequency support to asynchronous AC areas through an MTDC grid using a minimal-communication scheme is proposed. Under nominal operating condition, only voltage droop is considered to allow the AC systems operate asynchronously as they are meant to. When an AC system needs support, the corresponding converter transmits basic information via a distress signal through the existing DC lines or through existing communication channels used for common DC voltage-droop control. For AC disturbances, the frequency droop is activated with values that are predesigned based on the proposed design procedure. For converter outage, power references are modified in such a way that the DC power redistribution does not or minimally affect the AC-side frequencies. Simulation studies showing the effectiveness of the proposed strategies are presented.
AB - Provision of controlled primary frequency support to asynchronous AC areas through an MTDC grid using a minimal-communication scheme is proposed. Under nominal operating condition, only voltage droop is considered to allow the AC systems operate asynchronously as they are meant to. When an AC system needs support, the corresponding converter transmits basic information via a distress signal through the existing DC lines or through existing communication channels used for common DC voltage-droop control. For AC disturbances, the frequency droop is activated with values that are predesigned based on the proposed design procedure. For converter outage, power references are modified in such a way that the DC power redistribution does not or minimally affect the AC-side frequencies. Simulation studies showing the effectiveness of the proposed strategies are presented.
UR - http://www.scopus.com/inward/record.url?scp=85060568088&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85060568088&partnerID=8YFLogxK
U2 - 10.1109/PESGM.2018.8586652
DO - 10.1109/PESGM.2018.8586652
M3 - Conference contribution
AN - SCOPUS:85060568088
T3 - IEEE Power and Energy Society General Meeting
BT - 2018 IEEE Power and Energy Society General Meeting, PESGM 2018
PB - IEEE Computer Society
T2 - 2018 IEEE Power and Energy Society General Meeting, PESGM 2018
Y2 - 5 August 2018 through 10 August 2018
ER -