TY - JOUR
T1 - Real-Time Transient Instability Detection in the Power System With High DFIG-Wind Turbine Penetration via Transient Energy
AU - Shabani, Hamid Reza
AU - Kalantar, Mohsen
AU - Hajizadeh, Amin
PY - 2022/6/1
Y1 - 2022/6/1
N2 - By increasing the penetration of wind power in the modern power systems, to investigate transient stability is of special importance. This article presents an innovative index based on the concept of the potential energy boundary surface along with kinetic energy, which aims to detect the transient instability of a power system comprising doubly fed induction generator (DFIG)-based wind farms. Accordingly, transient instability detection (TID) is performed without directly calculating the unstable equilibrium point and thus the computational load is decreased. Since the proposed approach requires only the postfault data that can be easily measured by the phasor measurement units, it is suitable for real-time applications. Therefore, the proposed approach can be applied as a general tool to any power system with any change in topology and operating conditions. Moreover, considering that the current-balance form is the preferred industry model for the implementation of transient stability simulation, the network equations in the current-balance form are extracted for grid-connected DFIG and synchronous generators. Different scenarios are simulated in the Western System Coordinating Council 3-machine, 9-bus system, and the 10-generator New England system. To validate the new index for TID, simulation results are compared with the transient stability index and out-of-step distance relay. The obtained results validate the correctness and effectiveness of the presented new index.
AB - By increasing the penetration of wind power in the modern power systems, to investigate transient stability is of special importance. This article presents an innovative index based on the concept of the potential energy boundary surface along with kinetic energy, which aims to detect the transient instability of a power system comprising doubly fed induction generator (DFIG)-based wind farms. Accordingly, transient instability detection (TID) is performed without directly calculating the unstable equilibrium point and thus the computational load is decreased. Since the proposed approach requires only the postfault data that can be easily measured by the phasor measurement units, it is suitable for real-time applications. Therefore, the proposed approach can be applied as a general tool to any power system with any change in topology and operating conditions. Moreover, considering that the current-balance form is the preferred industry model for the implementation of transient stability simulation, the network equations in the current-balance form are extracted for grid-connected DFIG and synchronous generators. Different scenarios are simulated in the Western System Coordinating Council 3-machine, 9-bus system, and the 10-generator New England system. To validate the new index for TID, simulation results are compared with the transient stability index and out-of-step distance relay. The obtained results validate the correctness and effectiveness of the presented new index.
KW - Doubly fed induction generators
KW - Kinetic energy (KE)
KW - Mathematical model
KW - Power system stability
KW - Rotors
KW - Stability criteria
KW - Stators
KW - Transient analysis
KW - potential energy boundary surface (PEBS)
KW - transient energy function (TEF)
KW - transient instability detection (TID)
KW - wind farm
UR - http://www.scopus.com/inward/record.url?scp=85111025013&partnerID=8YFLogxK
U2 - 10.1109/JSYST.2021.3079253
DO - 10.1109/JSYST.2021.3079253
M3 - Journal article
SN - 1932-8184
VL - 16
SP - 3013
EP - 3024
JO - I E E E Systems Journal
JF - I E E E Systems Journal
IS - 2
ER -