Results 31 to 40 of about 102,393 (308)
Zhongguo dianli, 2021 A large amount of renewable energy has changed the damping characteristics of the power system through the access of power electronic equipment, resulting in the prominent problem of low-frequency oscillation of synchronous generators, posing a threat to
Yi ZHANG +5 more
doaj +1 more source
Integrated Optimal Design of a Passive Wind Turbine System: An Experimental Validation [PDF]
, 2010 This work presents design and experimentation of a full passive wind turbine system without active electronic part(power and control). The efficiency of such device can be obtained only if the system design parameters are mutually adapted through an ...
Espanet, Christophe +3 more
core +4 more sources
Comparative Study of PMSG, EESG, and HESG for Wind Power Application of Different Power Levels
IEEE AccessIn this paper, permanent magnet synchronous generators, electrically excited synchronous generators, and hybrid excited synchronous generators are compared to evaluate the difference in performance and cost efficiency for 3 kW medium-speed-low-torque and
Tianzheng Xiao +3 more
doaj +1 more source
The Journal of Engineering, 2019 As China's AC transmission system with series capacitor and HVDC transmission technology are widely used in long-distance and large-scale power transmission network, sub-synchronous resonance (SSR) problem becomes more prominent.
Juan Li +3 more
doaj +1 more source
Least Squares Estimation-Based Synchronous Generator Parameter Estimation Using PMU Data
, 2015 In this paper, least square estimation (LSE)-based dynamic generator model parameter identification is investigated. Electromechanical dynamics related parameters such as inertia constant and primary frequency control droop for a synchronous generator ...
Fan, Lingling +2 more
core +1 more source
Energies, 2018 The inter-turn short circuit is a common fault in the synchronous generator. This fault is not easily detected at early stage. However, with the development of the fault, it will pose a threat to the safe operation of the generator.
Luo Wang, Yonggang Li, Junqing Li
doaj +1 more source
Turn-to-turn fault protection technique for synchronous machines without additional voltage transformers [PDF]
, 2017 This paper presents a novel protection technique for the detection of inter-turn faults in synchronous machines. It is based on the calculation of voltage in the stator windings from the usual phases and neutral voltage, typically available in ...
Gyftakis, Konstantinos N. +2 more
core +1 more source
Power systems with high renewable energy sources: A review of inertia and frequency control strategies over time [PDF]
, 2020 Traditionally, inertia in power systems has been determined by considering all the rotating masses directly connected to the grid. During the last decade, the integration of renewable energy sources, mainly photovoltaic installations and wind power ...
Fernández Guillamón, Ana +3 more
core +2 more sources
Generalized Synchronization Trees [PDF]
, 2014 This paper develops a generalized theory of synchronization trees. In their original formulation, synchronization trees modeled the behavior of nondeterministic discrete-time reactive systems and served as the foundational theory upon which process algebra was based.
James Ferlez +2 more
openaire +1 more source
Applications of Modelling and Simulation, 2021 In this paper, a squirrel cage induction motor was used as the prime mover of a permanent magnet synchronous electric generator to achieve a motor-generator set purposed for internal combustion (IC) engine replacement.
Sulemana Abdul Razak, Erwin Normanyo
doaj