Results 11 to 20 of about 9,456,025 (175)

Bi-Objective Reactive Power Reserve Optimization to Coordinate Long- and Short-Term Voltage Stability [PDF]

IEEE Access, 2018
Reactive power reserve (RPR) management is a critical issue to power system voltage stability. Two RPR definitions are first proposed in this paper to evaluate the levels of RPR and improve voltage stability, namely long-term voltage stability-related ...
Quancai Sun, Haozhong Cheng, Yue Song
doaj   +4 more sources

Recurrent Convolutional Neural Network-Based Assessment of Power System Transient Stability and Short-Term Voltage Stability

Energies, 2022
Transient stability (TS) and short-term voltage stability (STVS) assessment are of fundamental importance for the operation security of power systems.
Estefania Alexandra Tapia, Delia Graciela Colomé, José Luis Rueda Torres   +2 more
doaj   +4 more sources

Data-Driven Short-Term Voltage Stability Assessment Using Convolutional Neural Networks Considering Data Anomalies and Localization

IEEE Access, 2021
Short-term voltage stability of power systems is governed by load dynamics, especially the proportion of small induction motors prevalent in residential air-conditioners. It is essential to efficiently monitor short-term voltage stability in real-time by
Syed Muhammad Hur Rizvi, Sajan K. Sadanandan, Anurag K. Srivastava   +2 more
doaj   +3 more sources

Real-Time Short-Term Voltage Stability Assessment Using Combined Temporal Convolutional Neural Network and Long Short-Term Memory Neural Network

Applied Sciences, 2022
This research presents a new method based on a combined temporal convolutional neural network and long-short term memory neural network for the real-time assessment of short-term voltage stability to keep the electric grid in a secure state.
Ananta Adhikari, Sumate Naetiladdanon, Anawach Sangswang   +2 more
doaj   +2 more sources

Control of Photovoltaic Systems for Enhanced Short-Term Voltage Stability and Recovery [PDF]

IEEE Transactions on Energy Conversion, 2019
This paper investigates the impact of: 1) the Low Voltage Ride-Through (LVRT) and Dynamic Voltage Support (DVS) capability; 2) the active current recovery rate; 3) the local voltage control; and 4) the plant-level voltage control of large-scale PhotoVoltaic (PV) systems on Short-Term (ST) voltage stability and Fault-Induced Delayed Voltage Recovery ...
Gustav Lammert, Daniel Premm, Luis David Pabon Ospina, Jens C. Boemer, Martin Braun, Thierry Van Cutsem   +5 more
core   +4 more sources

Weighted ensemble learning for real‐time short‐term voltage stability assessment with phasor measurements data

IET Generation, Transmission & Distribution, 2023
Voltage stability assessment based on machine learning has become an important challenge in power systems. This paper presents real‐time short‐term voltage stability (STVS) assessment based on phasor measurement unit (PMU) data and machine learning (ML).
Amir Hossein Babaali, Mohammad Taghi Ameli   +1 more
doaj   +2 more sources

Short-term voltage instability prediction using pre-identified voltage templates and machine learning classifiers

International Journal of Electrical Power & Energy Systems
System operators use different procedures to detect disturbances which can lead to short-term voltage instability. These schemes are designed using the domain knowledge and generally specific for the corresponding system.
Kalana Dharmapala, Athula Rajapakse
doaj   +2 more sources

Fast analytical calculation-based modeling method and fault ride-through parameters selection to enhance short-term voltage stability of grids with large-scale photovoltaic power plants

International Journal of Electrical Power & Energy Systems
Large-scale centralized photovoltaic power plants (PVPPs) connected to a power grid may cause short-term voltage instabilities during fault ride-through (FRT) processes.
Boyang Li, Shiyun Xu, Weixing Li, Pupu Chao, Xiaodong Liang, Zhimin Li   +5 more
doaj   +2 more sources

Optimal Dynamic Reactive Power Reserve for Wind Farms Addressing Short-Term Voltage Issues Caused by Wind Turbines Tripping

Energies, 2018
In regional power grids with high wind power penetration, wind turbine tripping poses great challenges to short-term voltage stability. Dynamic reactive power (VAR) compensation (DVC) plays an important role in securing wind farm operation.
Liang Wu, Lin Guan, Feng Li, Qi Zhao, Yingjun Zhuo, Peng Chen, Yaotang Lv   +6 more
doaj   +2 more sources

Mechanism-Guided Data-Driven assessment method for Multi-Scenario Short-Term voltage stability

International Journal of Electrical Power & Energy Systems
With the increasing integration of renewable energy sources and the expansion of direct current transmission systems, power system modeling has become increasingly complex, and the causes of voltage instability have grown more diverse.
Zhichong Cao, Cheng Liu, Chao Jiang, Shuyu Hao, Shuyu Zhou, Guowei Cai   +5 more
doaj   +2 more sources