| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce energy loss of a hybrid type excavation machine. <P>SOLUTION: The hybrid type excavation machine is provided with a generator which is connected to an engine and generates power by the rotating power of the engine, a power storage circuit to which electricity is supplied by the generator, a boom to which power generated by the engine is supplied and is power driven, a boom regeneration motor which converts the mechanical energy of the boom to the electric energy and supplies regenerative electricity to the power storage circuit, a roll-electric motor which conducts powering motion which is driven by the electricity being supplied by the power storage circuit and regenerative motion which generates electricity, and supplies electricity generated by the regenerative motion to the power storage circuit, and a control device which controls the motion of the power storage circuit. The power storage circuit is provided with a DC bus line by which the generator, roll-electric motor, and the boom regeneration motor are electrically connected with each other, and first and second capacitors which are electrically connected to the DC buss line and store electricity supplied by the roll-electric motor and boom regeneration motor, respectively. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
