Parameter Matching and Control of Series Hybrid Hydraulic Excavator Based on Electro-Hydraulic Composite Energy Storage …
Traditional excavators driven by diesel engine have poor emissions and low energy efficiency. Pure electric driven excavators have high cost and limited endurance. Therefore, at present, hybrid power train system is an ideal candidate for excavators to realize energy-saving and emission reduction. In this paper, a novel series hybrid …
Multi-parameter controlled mechatronics-electro-hydraulic power coupling electric vehicle based on active energy …
A hydraulic hybrid vehicle (HHV) has an engine as the primary power source and hydraulic energy as the auxiliary power source, which supplies both hydraulic and mechanical energy in the specific ...
Modeling and control strategy analysis of a hydraulic energy …
In this paper, a hydraulic energy-storage wave energy conversion system with three-level topological power conversion devices is modeled, which aims to provide …
Design optimization of hydraulic energy storage and conversion …
This paper focuses on the design optimization of a Hydraulic Energy Storage and Conversion (HESC) system for WECs. The structure of the HESC system …
Pumped-storage hydroelectricity
Pumped-storage hydroelectricity ( PSH ), or pumped hydroelectric energy storage ( PHES ), is a type of hydroelectric energy storage used by electric power systems for load balancing. The method stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation.
Energy Storage Techniques for Hydraulic Wind Power Systems
The hydraulically connected wind turbines provide variety of energy storing capabilities to mitigate the intermittent nature of wind power. This paper presents an approach to make …
Bivariate active power control of energy storage hydraulic wind …
Section 1 introduces the power control advantages of energy storage hydraulic wind turbine. Section 2 establishes the control model of each part of the unit. Section 3 deduces the dual closed-loop power control strategy under motor speed fluctuation from theory. Section 4 verifies the feasibility of the strategy through simulation …
Bivariate active power control of energy storage hydraulic wind …
This paper takes the energy storage hydraulic wind turbines (ESHWTs) as the research object, the mathematical model of the hydraulic main transmission system and the …
Processes | Free Full-Text | Modeling and Analysis of Maximum Power Tracking of a 600 kW Hydraulic Energy Storage Wind Turbine …
An innovative wind turbine with a particular hydraulic transmission and energy storage system is proposed in this paper. The purpose of applying the hydraulic transmission is to remove the gearbox and power converter of traditional wind turbine and cooperate on wind resource storing with the energy storage system. To overcome the …
Feasibility study of energy storage using hydraulic fracturing in …
This results in a decrease in net pressure and a loss of energy, which has a direct impact on the efficiency of energy storage. In this section, we study the efficiency of hydraulic fracture energy storage while considering fracture fluid leak-off. Before conducting the study, we made the following assumptions: 1.
Control of Hydraulic Energy Storage Generation
A hydraulic energy storage generation system (HESGS) can transform hydraulic energy stored in the hydraulic accumulator into stable and constant electrical energy by …
A Critical Review of the Various Energy-Saving Models Used in Hydrostatic Power …
Based on the detailed review of various energy-saving models, a novel energy-efficient hydrostatic power transmission drive of the chairlift transport system (CTS) is proposed. The rise in fluid temperature in the existing hydraulic arrangement of the CTS, owing to its continuous recirculation, is controlled by incorporating the flushing valve, …
Strategies to improve the energy efficiency of hydraulic power …
An energy-saving hydraulic drive unit based on flywheel energy storage system is presented. • The storage capacity and operational stability of traditional …
Bivariate active power control of energy storage hydraulic wind …
This paper takes the energy storage hydraulic wind turbines (ESHWTs) as the research object, the mathematical model of the hydraulic main transmission system and the hydraulic energy storage subsystem are established, and the energy …
Electric-Hydraulic Hybrid drivetrain for City Vehicles: A Novel Approach to On-board Energy Storage …
In the proposed method, braking energy is stored in a hydraulic accumulator instead of an electric battery, allowing the system to capture larger amounts of power. The hydraulic system consists of a fixed or variable ratio hydrostatic transmission, hydraulic accumulators, electrically actuated hydraulic valves, electric motors, a battery pack and an electronic …
An Electric-Hydrostatic Energy Storage System for Hydraulic …
There are some efforts in improving the energy density of hydraulic energy storage to achieve balanced performance. Therefore in this study an electric …
Gravity Compressed -Air
Gravity Compressed -Air- Hydraulic- Power-Tower Energy Storage Plants Ioan David 1 and Camelia Stefănescu 1 Published under licence by IOP Publishing Ltd IOP Conference Series: Materials Science and Engineering, Volume 960, 5th World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium – WMCAUS …
Multi-parameter controlled mechatronics-electro-hydraulic power coupling electric vehicle based on active energy …
A novel mechatronics-electro-hydraulic power coupling system is proposed. • Actual test data is classified and guides the design of rule strategies. • Active energy regulation is achieved through a multi-parameter inverse control method. • A fuzzy logic optimization ...
Bivariate active power control of energy storage hydraulic wind …
This paper takes the energy storage hydraulic wind turbines (ESHWTs) as the research object, the mathematical model of the hydraulic main transmission …
Research on a power smoothing control strategy for energy …
A control strategy was proposed for the energy storage system to realize power smoothing control. An offshore HWT with an accumulator was proposed in Fan et …
