Results 71 to 80 of about 102,634 (167)

Stability analysis of grid-following converter considering DC side dynamics

电力工程技术
DC side dynamics are ignored in most of the research on grid-connected converter, which is dealt as a constant voltage source. In this case, the analysis result of small-signal stability is affected to some extent.
ZHAO Yujing, MOU Qianying, BIN Zijun, KONG Xiangping   +3 more
doaj   +1 more source

Impact of DC-Link Dynamics on Shaft Damping and Grid Frequency Coupling in Doubly Fed Induction Generator Wind Turbines: Mechanism Analysis and a Suppression Strategy

Energies
In this paper, we address shaft oscillations and grid-connected oscillation frequency coupling in doubly fed induction generators (DFIGs) under DC-link dynamics.
Zheng Wang, Yimin Lu
doaj   +1 more source

Incorporating dc grid protection, frequency stability and reliability into offshore dc grid planning

, 2020
Various options for dc grid protection strategies are currently investigated which differ in terms of speed and selectivity. In order to compare these options fairly, the impact on the connected ac grid needs to be studied. This paper analyzes the ac grid impact in terms of frequency stability and calculates the reserve capacity necessary to retain the
Dave, Jaykumar, Ergun, Hakan, Van Hertem, Dirk   +2 more
openaire   +1 more source

DC Nano-grid System in the Future Sustainable Building

Kongzhi Yu Xinxi Jishu, 2011
In recent years, in order to solve the problems generated by renewable energy distributed generation, some foreign scholars have proposed “DC Nano-grid” which can combine generation, storage, load and control system.
钱照明, 高明智, 张宇儒, 陈敏
doaj  

DC micro-grids

, 2014
The conventional electrical system in place today sees our electrical devices powered by AC mains. But as renewable technologies such as solar photovoltaic and wind power become more prevalent at a household level, DC micro-grids could be a cheaper and more efficient alternative.
openaire   +1 more source

An adaptive reclosing scheme for flexible DC grid based on residual voltage S-transformation. [PDF]

Sci Rep
Dai Y, Shu H, An N, Tang Y, Han Y.
europepmc   +1 more source

Multi-terminal flexible DC grid circuit breaker withstands multi-lightning strike analysis. [PDF]

Sci Rep
Tang Y, Shu H, He K, Dai Y, Kuang Y, Han Y, Lou W.   +6 more
europepmc   +1 more source

Enhancing grid stability using dynamic reserve power point tracking techniques. [PDF]

PLoS One
Kumar S, Venkatakrishnan GR, Rengaraj R, Kumar A, Kumar P.   +4 more
europepmc   +1 more source

Multi-objective hybrid GA-PSO optimized PI control for grid-connected PV-fed cascaded H-bridge multilevel inverter. [PDF]

Sci Rep
Sharma B, Saxena V, Manna S, Rao PN, Alsharif MH, Yahya K, Kim MK.   +6 more
europepmc   +1 more source

Real-Time Transient Voltage and Frequency Sensing Strategy for Resilience Enhancement of PV-Storage Systems in Weak Grids. [PDF]

Sensors (Basel)
Ji Y, Liu Z, Gu X, Huo C, Zhang Z, Tang S, Mei J, Huang C.   +7 more
europepmc   +1 more source