CAJ | 학술논문

现有的滑阀式电控比例阀难以做到大流量。针对这一问题，提出一种新型电比例流量阀的设计方案，突破了滑阀的结构，采用两个可以独立控制的电比例节流阀，利用压力传感器采集节流阀的进出口压力，通过控制器对电比例节流阀进行压力-流量的联合控制。根据新型电比例流量阀的体系结构，推导了变负载下压差恒定的流量控制算法，并通过仿真测试对PID控制参数进行整定，优化了系统方案和控制算法，提高了方案的实用价值。
현유적활벌식전공비례벌난이주도대류량。침대저일문제，제출일충신형전비례류량벌적설계방안，돌파료활벌적결구，채용량개가이독립공제적전비례절류벌，이용압력전감기채집절류벌적진출구압력，통과공제기대전비례절류벌진행압력-류량적연합공제。근거신형전비례류량벌적체계결구，추도료변부재하압차항정적류량공제산법，병통과방진측시대PID공제삼수진행정정，우화료계통방안화공제산법，제고료방안적실용개치。
The existing slide electrical proportional control valve is difficult to achieve large flow. To solve the problem,a design scheme for a new type of electronic proportional flow control valve was presented,which broke through the slide valve structure. Two e-lectric proportional throttle valve independently controlled were used and the pressures of the throttle import and export were collected by pressure sensors. The pressure-flow joint control of the electric proportional throttle valve was realized by pressure controller. Ac-cording to the structure of the new electronic proportional flow control valve,the constant pressure difference flow control algorithm un-der variable load was deduced. The PID control parameters were adjusted by simulation,the program and control algorithm were opti-mized and the practical value of the program is improved.