Short Circuit Current Constrained UC in High IBG-Penetrated Power Systems
| Autor: | Fei Teng, Zhongda Chu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Energy
Hardware_MEMORYSTRUCTURES Computer science 020209 energy Energy Engineering and Power Technology Systems and Control (eess.SY) 02 engineering and technology Stability (probability) Electrical Engineering and Systems Science - Systems and Control Constraint (information theory) Nonlinear system Electric power system 0906 Electrical and Electronic Engineering Power system simulation Control theory Power electronics FOS: Electrical engineering electronic engineering information engineering 0202 electrical engineering electronic engineering information engineering Inverter Electrical and Electronic Engineering Short circuit |
| Popis: | Inverter Based Generators (IBGs) have been increasing significantly in power systems. Due to the demanding thermal rating of Power Electronics (PE), their contribution to the system Short Circuit Current (SCC) is much less than that from the conventional Synchronous Generators (SGs) thus reducing the system strength and posing challenges to system protection and stability. This paper proposes a Unit Commitment (UC) model with SCC constraint in high IBG-penetrated systems to ensure minimum operation cost while maintaining the SCC level at each bus in the system. The SCC from synchronous generators as well as the IBGs are explicitly modeled in the formulation leading to an SCC constraint involving decision-dependent matrix inverse. This highly nonlinear constraint is further reformulated into linear form conservatively. The influence of the SCC constraint on the system operation and its interaction with the frequency regulation are demonstrated through simulations on IEEE 30- and 118-bus systems. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|