Influence of blade number on performance of multistage hydraulic turbine in turbine mode
Energy Science & Engineering, 2022 Compared with the traditional reverse multistage pump as hydraulic turbine, hydraulic turbine in turbine mode (T‐type turbine) with low specific speed has higher single‐stage energy head, which can effectively reduce stages and increase the stability ...
Lihong Zhang +4 more
doaj +2 more sources
Numerical Analysis on the Hydraulic Thrust and Dynamic Response Characteristics of a Turbine Pump
Energies, 2022 Pumps as turbines are widely used in the world, wherein the hydraulic thrust of a turbine pump is one of the key factors affecting the safe and stable operation of a unit.
Linghua Kong +10 more
doaj +2 more sources
Energies, 2022 Nowadays, pump-turbine units have to experience multiple start-stops every day to balance the power production and consumption on the grid. During the transient process of turbine start-up, the hydraulic forces applied to the head-cover would change ...
Zhengwei Wang +5 more
doaj +1 more source
Technique for designing and optimization of the Francis turbine blade system [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2023 A technique for designing the blade systems of Francis turbine is proposed. Starting with the determination the main parameters of the turbine components, where it is compatible with the operation of a hydraulic turbine at a given head.
M. Omran +3 more
doaj +1 more source
Energies, 2020 Taking the hydraulic wind turbine as the research object, the method is studied to improve the utilization ratio of wind energy for hydraulic wind turbine, when the wind speed is lower than the rated wind speed.
Chao Ai +6 more
doaj +1 more source
Research on control system for improving the grid-connected efficiency of small hydropower
Energy Reports, 2023 Aiming at the problem of low efficiency at low flow in small hydropower stations, a permanent magnet direct-drive hydropower generation control system based on dual PWM converters is proposed to realize wide-range variable-speed constant-frequency ...
Xingyang Hu +4 more
doaj +1 more source
Control design, implementation, and evaluation for an in-field 500 kW wind turbine with a fixed-displacement hydraulic drivetrain [PDF]
Wind Energy Science, 2018 The business case for compact hydraulic wind turbine drivetrains is becoming ever stronger, as offshore wind turbines are getting larger in terms of size and power output. Hydraulic transmissions are generally employed in high-load systems and form an
S. P. Mulders +2 more
doaj +1 more source
PENGARUH SUDUT KEMIRINGAN TERHADAP PUTARAN DAN DAYA HIDROLISIS PADA TURBIN ARCHIMEDES SCREW PORTABLE
Rekayasa Mesin, 2022 Picohydro Power Plant is one of the renewable energy sources which utilizes water or irrigation channels with a small head and flow rate. Many factors can affect the hydrolysis power and also the power on the rotation of the screw turbine, one of which ...
Gunawan Rudi Cahyono +3 more
doaj +1 more source
Feasibility studies of a converter-free grid-connected offshore hydrostatic wind turbine [PDF]
, 2020 Owing to the increasing penetration of renewable power generation, the modern power system faces great challenges in frequency regulations and reduced system inertia.
Lin, Shuyue, Tong, Xin, Zhao, Xiaowei
core +1 more source
Modeling and Control of a 600 kW Closed Hydraulic Wind Turbine with an Energy Storage System
Applied Sciences, 2018 In this paper, an innovative closed hydraulic wind turbine with an energy storage system is proposed. The hydraulic wind turbine consists of the wind rotor, the variable pump, the hydraulic bladder accumulator, the variable motor, and the synchronous ...
Liejiang Wei +4 more
doaj +1 more source