Abstract
This paper proposes an energy storage controller synthesis method for voltage restoration in microgrids with respect to temporal logic specifications (TLSs). TLSs is introduced in this paper as a formalism to control the voltage variation of a critical bus against an operational bounds over time. The power system with synchronous generator (SG) connected to a critical load bus is modeled as a set of differential-algebraic equations and a simplified analytical model is derived to describe the voltage variation of this critical bus. The control objective is to schedule an optimal control input signal from a supportive energy storage system (ESS) connected to the critical bus, such that the voltage variation of the latter satisfies the TLSs, such as a finite-time restoration. The proposed control is verified on a lumped distribution system model. With this control diagram, supportive controllers can be designed to make voltage behaviors comply with grid codes and avoid unnecessary relay actions.
Original language | English |
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Title of host publication | 2020 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2020 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781728131030 |
DOIs | |
State | Published - Feb 2020 |
Event | 2020 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2020 - Washington, United States Duration: Feb 17 2020 → Feb 20 2020 |
Publication series
Name | 2020 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2020 |
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Conference
Conference | 2020 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2020 |
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Country/Territory | United States |
City | Washington |
Period | 02/17/20 → 02/20/20 |
Funding
ACKNOWLEDGEMENT Research sponsored by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory (ORNL), managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract No. DE-AC05-00OR22725. By the Engineering Research Center Program of the National Science Foundation and the Department of Energy under NSF Award Number EEC-1041877 and the CURENT Industry Partnership Program.
Keywords
- Finite-time voltage restoration
- Numerical optimal control
- Temporal logic specification
- Voltage control