Results 41 to 50 of about 224 (125)

Transient Synchronous Stability Evaluation of Heterogeneous Power Grids With Grid‐Following and Grid‐Forming Converters by Manifold Theory

IET Renewable Power Generation, Volume 19, Issue 1, January/December 2025.
It illustrates the controlling UEP determination procedure and the comparison of the CCTs under different cases. (a) Case I; and (b) Case II. ABSTRACT The energy function method developed from Lyapunov theory is a typical direct method to evaluate the transient synchronous stability of traditional power grids.
Saizhao Yang, Rui Ma, Yitong Li, Jinyu Wen   +3 more
wiley   +1 more source

Adaptive algorithm for rapidly optimising the generator‐tripping control

The Journal of Engineering, Volume 2019, Issue 16, Page 3039-3045, March 2019., 2019
The fast optimisation of transient stability emergency control (TSEC) strategy is a key factor of online safeguard for AC–DC interconnected systems. An engineering applicable TSEC algorithm has to obtain the disturbed trajectories of the system by numerical integration, and then do quantised stability knowledge mining.
Tiangang Huang, Yusheng Xue, Feng Xue, Junhua Zhao, Jianmin Zhang   +4 more
wiley   +1 more source

Human health and the health of Planet Earth go together

Journal of Internal Medicine, Volume 295, Issue 5, Page 695-706, May 2024.
Abstract The emergence of the planetary health approach was highlighted by the report of The Rockefeller Foundation‐Lancet Commission on Planetary Health in 2015 and changed how we comprehend human well‐being. The report advocates integrating the health of other living beings and Earth's natural systems as intrinsic components of human health.
Josep M. Antó
wiley   +1 more source

Transient stability analysis of wind‐thermal bundled system based on virtual inertia control

The Journal of Engineering, Volume 2019, Issue 16, Page 862-866, March 2019., 2019
In this study, the transient stability characteristics of the wind‐thermal bundled system is discussed when the wind turbine adopts the additional control of virtual inertia. Firstly, a typical wind‐thermal bundled system model is established, and the operating characteristics and equations of motion of the wind turbine are derived. Then, the transient
Yao Shujun, Guo Wanhua, Huang Wenerda, Xu Hongtao, Bian Erman   +4 more
wiley   +1 more source

Divergent responses in microbial metabolic limitations and carbon use efficiency to variably sized polystyrene microplastics in soil

Land Degradation &Development, Volume 35, Issue 7, Page 2658-2671, 30 April 2024.
Abstract Microplastics, considered emerging contaminants, have been accumulating excessively within soil ecosystems, conferring potentially detrimental effects with respect to soil carbon turnover and pools. As a major participant in soil carbon processes, microplastics affecting microorganisms may be one of the main agents affecting soil carbon ...
Guanlin Li, Yi Tang, Yowhan Son, Xiaoxun Zhao, Babar Iqbal, Kiran Yasmin Khan, Ruoyu Guo, Weiqing Yin, Xin Zhao, Daolin Du   +9 more
wiley   +1 more source

Coordinated Control of DFIG Based Wind Farms and SGs for Improving Transient Stability

IEEE Access, 2018
This paper proposes a coordinated control of doubly fed induction generator (DFIG)-based wind farms' (WFs) post-fault active power and synchronous generators' (SGs) tripping with the aim of improving transient stability of both the first swing and multi ...
Ming Zhou, Zhe Dong, Hongyu Li, Chun Gan, Gengyin Li, Yilu Liu   +5 more
doaj   +1 more source

A Double‐Layer Optimization Method for Cascading Failure Prevention Considering Transient Stability

Journal of Electrical and Computer Engineering, Volume 2024, Issue 1, 2024.
In recent years, in order to reduce the damage from the blackout accident, the demand of the power system for its basic resistance ability has gradually increased. Therefore, this paper proposes a double‐layer optimization method for the prevention of cascading failure of the power system that takes into account the transient stability constraint for ...
Huiqiong Deng, Zhiwei Liang, Hui Wu, Junfu Shen, Sheila Mahapatra   +4 more
wiley   +1 more source

Physicochemical Properties and Antioxidant Potential of Gels from Foam Mat Drying and Ethanolic Extract of Red Spinach (Amaranthus cruentus)

Borneo Journal of Pharmacy
Red spinach (Amaranthus cruentus), a rich source of antioxidant anthocyanins, is susceptible to light degradation. Foam mat drying (FMD) is a promising technique to preserve these pigments.
Ibrahim Arifin, Khoirul Anwar, Muhammad Farih Arsyada, Nevy Pratiwi, Ayu Shabrina   +4 more
doaj   +1 more source

Communiques on Activities of the State Environmental Council of Poland

Problemy Ekorozwoju, 2009
Communique includes information about PROS activities in 2018; EEAC Statement: Sustaining Europe for a Long Way Ahead; EEAC Bordeaux Declaration and list of members of PROS.
Tomasz Winnicki
doaj  

Soil-microbe-exoenzyme C∶N∶P Stoichiometric Characteristics in Artificial Pure Forests of Four Tree Species in the Hilly Region of Central Hunan

Shuitu Baochi Xuebao
[Objective] The contents of soil carbon (C), nitrogen (N) and phosphorus (P) along with their stoichiometric ratios are varied due to the varying nutrient uptake and utilization strategies among plantations of various tree species, which in turn can ...
LU Qiaolu, FANG Xi, FAN Shicai, SUN Long, SUN Baihui, LIANG Tingting, LI Yi   +6 more
doaj   +1 more source