Designing the high performance electro-hydraulic position controller using 3-port servo valve for heavy and unidirectional load system

대부하 편하중 유압시스템의 3-port 서어보 밸브를 사용한 고속제어기 설계 연구

Comparison 3-port servo system with 4-port is made to obtain optimal design for heavy and unidirectional hydraulic system, It is concluded that 3-port servo system it more adequate than 4-port for the heavy load system which is usually operated at lower frequencies. High performance electro-hydraulic position controller is designed using 3-port servo valve. It includes dynamic pressure feedback as a inner loop and position feedback as a outer loop.