Results 31 to 40 of about 1,313,437 (283)

Rapid Power Compensation-Based VSC-HVDC Control Strategy for Low-Frequency Oscillation Suppression of the Island Power System

open access: yesFrontiers in Energy Research, 2021
Owing to the increased proportion of new energy power generation, such as wind power and photovoltaics, connected to the island grid, the system powered by the voltage source converter-based HVDC (VSC-HVDC) is prone to oscillate or even lose stability ...
Haipeng Lv   +3 more
doaj   +1 more source

Research on the Performance Boundaries and Improvement Strategies of Oscillation Suppression in Continuously Adjustable Phase-Shifting Transformer [PDF]

open access: yesDianli jianshe
[Objective] To enhance the sub-synchronous oscillation suppression capability under high proportion of power electronic equipment conditions in power grids, promote the application of continuous tunable phase shifters in power flow regulation and ...
DU Jingyan, CHEN Junjie, LIN Jinjiao, WANG Chuyang
doaj   +1 more source

A review of PETT oscillation's characteristics, mechanism, and suppression methods in the IGBT device

open access: yesPower Electronic Devices and Components, 2023
In practical application, there are many parallel insulated gate bipolar transistor (IGBT) chips and anti-parallel fast recovery diode (FRD) chips in the IGBT devices.
Ganyu Feng   +4 more
doaj   +1 more source

An Improved Virtual Impedance Control Based Oscillation Suppression Method for MMC DC System

open access: yesCPSS Transactions on Power Electronics and Applications, 2022
The oscillation phenomenon has detrimental effects on the stable operation of the module multilevel converter (MMC)-based high voltage DC (MMC-HVDC) transmission system.
Lei Gao
semanticscholar   +1 more source

Adaptive control of a nonlinear aeroelastic system [PDF]

open access: yes, 2011
Aeroelastic two-dimensional wing section with both trailing-edge (TE) and leading-edge (LE) was investigated in this paper through numerical simulation in time domain.
Shijun Guo   +5 more
core   +1 more source

Study on Self-Excited Oscillation Suppression of Supersonic Inlet Based on Parallel Cavity

open access: yesFrontiers in Energy Research, 2022
Aiming at the problem of self-excited oscillation in a supersonic inlet, the oscillation suppression of parallel cavities in a shock system is studied. Based on the shock dynamic model, the theoretical calculation model of parallel cavity under dynamic ...
Feichao Cai, Xin-Ya Huang
semanticscholar   +1 more source

Rotating Behavior Observation of Cavitation in Inducer with Suction Axi-Asymmetrical Plate

open access: yesJournal of Fluid Science and Technology, 2008
The attachment of inducer in front of main impeller is a powerful method to improve cavitation performance. In operating condition at partial flow rate and extremely low suction pressure, cavitation surge oscillation occurs and the stable operating range
Jun-Ho KIM   +4 more
doaj   +1 more source

The observability and controllability metrics of power system oscillations and the applications

open access: yesFrontiers in Energy Research, 2023
Power system oscillation has caused many serious accidents in renewable energy grid connection system. The concept of observability and controllability in control theory has been widely applied to power system oscillation study.
Chenghan Zhao   +3 more
doaj   +1 more source

Limit cycle oscillation suppression controller design and stability analysis of the periodically time-varying flapping flight dynamics in hover

open access: yesNonlinear dynamics, 2021
The periodically time-varying forces make the equilibrium state of Beihawk, an X-shaped flapping-wing aircraft, to be a periodic limit cycle oscillation. However, traditional controllers based on averaging theory fail to suppress this oscillation and the
Liang Wang   +3 more
semanticscholar   +1 more source

An Improved Prony Prediction Compensation-Based Wide-Area Damping Control Approach for Power System Low-Frequency Oscillation Suppression

open access: yesJ. Sensors, 2021
Currently, wide-area damping control has been considered one of the most effective and promising methods to solve the problem of interval low-frequency oscillation in power systems. In order to reduce adverse affection caused by time delay in acquisition
Shujun Chang   +3 more
semanticscholar   +1 more source

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