Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Liejiang Wei"'
Publikováno v:
IEEE Access, Vol 11, Pp 42631-42643 (2023)
As the traditional power drive circuit is difficult to meet the requests of high-power high-frequency proportional solenoid fast drive, this paper proposes a push-pull energy storage pulse width modulation (PWM) power drive circuit. The circuit is eq
Externí odkaz:
https://doaj.org/article/c9458b7b699c4d6db6407a92a086d31f
Publikováno v:
Axioms, Vol 12, Iss 7, p 696 (2023)
There is a permanent and strong need for energy recovery to improve the efficiency of the hydraulic system in the field of the construction machinery. In addition, the digital pump will become powerful and versatile by employing different configurati
Externí odkaz:
https://doaj.org/article/6aee3a1f640645edba8a169a49498ffd
Publikováno v:
Energies, Vol 16, Iss 13, p 5229 (2023)
The potential energy recovery of hydraulic excavators is very significant for improving energy efficiency and reducing pollutant emissions. However, the more common solutions for potential energy recovery require more energy conversion processes befo
Externí odkaz:
https://doaj.org/article/8e237e0f94d34299a81f112538eff848
Publikováno v:
Machines, Vol 11, Iss 2, p 148 (2023)
Perfect flow distribution is extremely important and essential for digital pumps. However, the fluctuation of motor speed and the change of valve dynamic characteristics cause the flow distribution flaw, which generates the backflow of the oil in the
Externí odkaz:
https://doaj.org/article/b8e887fc31524c4d9cbca5862c161887
Publikováno v:
Machines, Vol 10, Iss 2, p 106 (2022)
Digital hydraulic technology as an emergent and important branch of fluid power offers good prospects for intelligence, integration, and energy saving of hydraulic systems. The high-speed on-off valve (HSV) that is a critical component of digital hyd
Externí odkaz:
https://doaj.org/article/51a7d3a3343d484f817d38ffd60d5813
Publikováno v:
Advances in Mechanical Engineering, Vol 11 (2019)
Impulsive noise, generated by inverters and other equipment used in the field, tends to easily enter test channels in scenarios where continuous frequency conversion signals are employed to test the frequency response of electrohydraulic proportional
Externí odkaz:
https://doaj.org/article/c381764c7fce48a1b8e1ef0981525bc6
Publikováno v:
Advances in Mechanical Engineering, Vol 9 (2017)
To eliminate the adverse effect of the fluctuation and intermittence of wind power on the quality and stability of electrical power system, an energy storage system is introduced into the closed-loop hydraulic system of hydraulic wind turbine for the
Externí odkaz:
https://doaj.org/article/c6ae8a5ec0dd49a2b4554b0e4fbd00d5
Publikováno v:
Entropy, Vol 20, Iss 10, p 800 (2018)
Heat transfer performances and flow structures of laminar impinging slot jets with power-law non-Newtonian fluids and corresponding typical industrial fluids (Carboxyl Methyl Cellulose (CMC) solutions and Xanthangum (XG) solutions) have been studied
Externí odkaz:
https://doaj.org/article/3e15e5b8d40e46a1bb951d54d060b42f
Publikováno v:
Applied Sciences, Vol 8, Iss 8, p 1314 (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
Externí odkaz:
https://doaj.org/article/ed9d9ac10f1f42ddb2c2cc7d73385d7b
Publikováno v:
Energies, Vol 11, Iss 5, p 1310 (2018)
Energy storage plays a major role in solving the fluctuation and intermittence problem of wind and the effective use of wind power. The application of the hydraulic accumulator is the most efficient and convenient way to store wind energy in hydrauli
Externí odkaz:
https://doaj.org/article/5bcedb3ca400457791bea6f2918f7f93