Coordinated voltage control and reactive power regulation between transmission and distribution systems

Patent · Tue Jul 12 04:00:00 EDT 2022

OSTI ID:1924897

Samaan, Nader A.; Ke, Xinda; Holzer, Jesse T.; Huang, Renke; Vyakaranam, Bharat; Vallem, Mallikarjuna; Elizondo, Marcelo A.; Makarov, Yuri; Lu, Ning; Zhu, Xiangqi; Mulcahy, David; McEntee, Catherine

Systems and methods are described for coordinating volt-var control between sub-transmission and distribution systems. Distributed energy resources of a distribution system are aggregated into virtual power plants from which reactive power can optimally be dispatched to the sub-transmission system. A sub-transmission controller executes a volt-var AC optimal power flow optimisation function to minimize voltage fluctuations that might otherwise occur when coordinating with a distribution system having distributed energy resources. The distribution system can use a sensitivity matrix for regulating voltage at distribution feeders while fulfilling a transmission or sub-transmission system's demand requests.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); North Carolina State Univ., Raleigh, NC (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• Assignee: Battelle Memorial Institute (Richland, WA); North Carolina State University (Raleigh, NC)
• Patent Number(s): 11,387,651
• Application Number: 16/534,972
• OSTI ID: 1924897
• Country of Publication: United States
• Language: English