【摘要】 电液变转速控制系统相比节流调速系统虽然具有节能的优势,但是由于其响应速度慢的缺点限制它的应用,为了提高电液变转速控制系统的响应速度,采用在传统的电液变转速系统中加入能量调节装置的方法,构成基于能量调节的电液变转速控制系统,能量调节装置的主体由蓄能器和比例节流阀组成,能够在系统减速时吸收多余的能量,而在系统加速的时候释放储存的能量,从而加快系统响应速度并实现能量的回收。针对基于能量调节的电液变转速控制系统的特点,提出基于能量调节思想的控制策略,一系列的对比试验表明,本系统能够在保持低能耗特点的同时获得比节流调速系统更高的响应速度。更多还原

【Abstract】 Compared with valve control systems, variable speed hydraulic systems have the advantage of energy saving. But the application field of variable speed hydraulic systems is limited by the shortcoming of low dynamic characteristics. In view of this shortcoming, an energy regulation device is schemed out to be added on the traditional variable speed hydraulic control system, so a new type of hydraulic control system is formed. The energy regulation device can absorb redundant energy during system deceleration, as well as release energy during system acceleration, so the dynamical response of this system can be increased. A control strategy based on energy regulation is put forward to satisfy this system. The experimental results show that this type of system can improve the dynamic characteristics greatly and cut down the energy cost.更多还原