Results 91 to 100 of about 277,373 (307)

An Improved Droop Control Strategy for Low-Voltage Microgrids Based on Distributed Secondary Power Optimization Control

Energies, 2017
To achieve accurate reactive power sharing and voltage frequency and amplitude restoration in low-voltage microgrids, a control strategy combining an improved droop control with distributed secondary power optimization control is proposed. The active and
Demin Li, Bo Zhao, Zaijun Wu, Xuesong Zhang, Leiqi Zhang   +4 more
doaj   +1 more source

A flexible and temporal integral optimal reactive power control system

, 2004
This paper proposes a flexible and temporal integral voltage/reactive power control system. The voltage stability problem is mainly driven by the dynamics of consumers’ load demand which possesses both daily periodic character and short-term stochastic ...
Lin, M, Samarasinghe, Sandhya, Hu, A, A. P. Hu, M. Lin, S. Samarasinghe   +5 more
core  

Active and reactive power control of a VSC-HVdc

, 2008
Voltage source converter-based HVdc(VSC-HVdc) systems have the ability to rapidly control the transmitted active power, and also to independently exchange reactive power with transmissions systems.
Ghandhari, Mehrdad,, Söder, Lennart,, Latorre, Hector,   +2 more
core   +1 more source

A power system equivalent impedance based voltage control [PDF]

, 2009
--Voltage control is traditionally achieved through reactive power control, mainly because of the inductive nature of the transmission grids. However, when considering distribution networks, reactive power may not be an effective mean for voltage control.
W. L. Kling, Myrzik, J.M.A., J. M. A. Myrzik, Myrzik, JMA Johanna, Kechroud, A Abdelhamid, Abdelhamid Kechroud, Kling, WL Wil, Kechroud, A., Kling, W.L.   +8 more
core   +1 more source

Identifying gene expression signatures for risk stratification of postoperative adjuvant chemotherapy in colorectal cancer

FEBS Open Bio, EarlyView.
A novel signature integrating genome‐wide analysis with clinical factors predicts recurrence in stage II colorectal cancer and enables a new risk stratification to guide postoperative adjuvant chemotherapy. Clinical risk stratification for postoperative recurrence in patients with pathological stage II (pStage II) colorectal cancer (CRC) is essential ...
Mayuko Otomo, Keisuke Okuno, Shuichi Watanabe, Sakiko Oba, Hiroyasu Kagawa, Masanori Tokunaga, Daisuke Ban, Yusuke Kinugasa   +7 more
wiley   +1 more source

Optimal reactive power control in a converter station during low-power operation of HVDC

The Journal of Engineering, 2019
When the high-voltage DC (HVDC) system is operated in low-power transmission, the overplus of reactive power provided by AC filters may still exist apart from satisfying the need of the converter station, restricted by the minimum number of filter banks.
Jingshan Mo, Wei Yan, Fan Xiao, Tao Wang, Hao Wang, Youbin Zhou   +5 more
doaj   +1 more source

Enhanced Harmonics Reactive Power Control Strategy Based on Multilevel Inverter Using ML-FFNN for Dynamic Power Load Management in Microgrid. [PDF]

Sensors (Basel), 2022
Jamil H, Qayyum F, Iqbal N, Kim DH.
europepmc   +1 more source

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

FEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee, Giulia Zanetti, Bram van den Broek, Kees Jalink   +3 more
wiley   +1 more source

Reactive power regulation strategy for WTGs based on active disturbance rejection control

Frontiers in Energy Research
With the large-scale interconnection of wind power generation, the voltage problem of the power system becomes more and more prominent. Compared with adding external reactive power compensation devices, it is more economical and responsive for fans to ...
Shuilian Xue, Zhilong Yin, Zhiguo Wang, Feng Yu, Hailiang Chen   +4 more
doaj   +1 more source

Proposed shunt rounding technique for large-scale security constrained loss minimization

, 2010
The official published version can be obtained from the link below - Copyright @ 2010 IEEE.Optimal reactive power flow applications often model large numbers of discrete shunt devices as continuous variables, which are rounded to their nearest discrete ...
Irving, MR, Taylor, GA, MacFie, PJ, Hurlock, P, Wan, H   +4 more
core   +1 more source