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在蓄电池等主要元件的技术没有取得根本性突破之前,采用混合动力技术仍是实现工程机械节能减排的有效方式之一,兼具高能量密度和高功率密度特点的三动力源技术可成为发展思路。目前,国内外许多企业都在研制混合动力装载机,并纷纷推出了自己的样机。就目前各企业的技术路线看,无外乎电动混合和电液混合两种方式。前者的储能元件为蓄电池和超级电容,其储能特点是能量密度大而功率密度小,这种特性可以使装载机获得辅助动力的持续时间更长,但会导致混合动力装载机对制动能的回收效率非常低。后者的储能元件为液压蓄能器。蓄能器储能特点是功率密度大而能量密度小,这种特性可以使装载机对制动能的回收效率比较高,但混合动力装载机获得辅助动力
Before the technology of the main components such as the battery did not make a fundamental breakthrough, the adoption of hybrid technology is still an effective way to realize energy-saving and emission-reduction of construction machinery. The three-power source technology with high energy density and high power density can be developed Ideas. At present, many domestic and foreign enterprises are developing hybrid loaders and have launched their own prototype. On the current technical perspective of various enterprises, nothing less than electric hybrid and electro-hydraulic hybrid two ways. The former energy storage device is a battery and a supercapacitor. Its energy storage characteristics are high energy density and low power density. This feature can make the loader last longer in auxiliary power, but will cause the hybrid loader to brake The energy recovery efficiency is very low. The latter energy storage element is a hydraulic accumulator. Accumulator energy storage characteristics of large power density and density, this feature can make the loader recovery efficiency of braking energy is relatively high, but the hybrid loader to obtain auxiliary power