Battelle Memorial Institute

North Carolina State University

Renke Huang

Ning Lu

Ruisheng Diao

Jesse T Holzer

Yuri Makarov

Xiangqi Zhu

Qiuhua Huang

Mallikarjuna Vallem

Nader A Samaan

Bharat Vyakaranam

Marcelo A Elizondo

Xinya Li

James G O'Brien

Zhangshuan Hou

David Mulcahy

Catherine McEntee

Xiaoyuan Fan

Xinda Ke

Emily L Barrett

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.

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

Techniques and apparatuses are described that enable transformative Remedial Action Scheme (RAS) analyses and methodologies for a bulk electric power system, including methods of designing, reviewing, revising, testing, implementing, verifying, or validating a RAS. An improved RAS improves operation of the power system, including performance, reliability, control, and asset utilization. The example methodologies discussed&#x2014;also referred to as a transformative Remedial Action Scheme tool (TRAST)&#x2014;provide an end-to-end solution for adaptively setting RAS parameters based on realistic and near real-time operation conditions to improve power grid reliability and grid asset utilization, by leveraging utility data analysis and employing dynamic simulations and machine learning to significantly simplify and shorten the entire RAS process.

Transformative remedial action scheme tool (TRAST)

Growing community of inventors

Richland, WA, United States of America

Renke Huang