Modern excavator transfer station energy storage device

Which energy storage device is used in a hybrid system?

In electrical hybrid systems, batteries and ultracapacitors are two common energy storage devices. While in hydraulic hybrid systems, hydraulic accumulators are used as energy storage devices. As for a mechanical one, a flywheel is the most common energy storage device. This paper is organized as follows.

How many energy storage devices do excavators need?

The regeneration system always requires at least one energy storage device. However, using a single storage device is difficult to meet the need for energy recuperation as well as performance satisfaction of excavators. Some researches combine two independent energy storage devices to form a combined energy storage system.

What is the power train of electric excavator?

Power train of electric excavator including regeneration system It is basically assumed that the fuel cell, which is the main power sources of the electric excavator, the battery, and the super capacitor of the energy regeneration system, can cover the power of the existing engine excavator.

Can a multi-cylinder structure work device save energy in excavators?

Recovery and regeneration the wasted energy is an important means to achieve energy saving and emission reduction of excavators. In this paper, a potential energy recovery and regeneration system based on a multi-cylinder structure working device is invented.

What is the energy regeneration system for hybrid hydraulic excavators?

An energy regeneration system is proposed for hybrid hydraulic excavators. The energy regeneration system contains the hydraulic accumulator and the battery. The efficiency of the proposed energy regeneration system is around 39%. The capacity of the regeneration unit can be reduced by more than 65%.

How efficient is the excavator with energy recovery system?

Results show that under the same boom-single-action conditions, the energy-saving efficiency of the excavator equipped with energy recovery system can reach 33%, it has important reference significance for evaluating the energy efficiency of the new system. Content may be subject to copyright. Content may be subject to copyright.