Distributed measurement and control system of the test-rig of ram-compressed rotor aero-engine based on PLC and PXI bus

This paper presents a design for RCT, based on the new concept of a RRAE, acting as an experiment platform for studying the major characteristics of RRAE and simulating its working states. It is also the first time that a DMCS, based on PXI bus for measurement and Programmable Logic Controller for control, is used in the test-rig of RRAE. As an essential part of DMCS, the DCS needs the ability of self-adjusting to adapt to the dynamic and complex MIMO process of RCT, i.e. to realize a SDCS. As a conventional PID controller has deficiencies in adapting to the environmental changes, a supervisory fuzzy controller based on Artificial Intelligent (AI) is required to adjust the PID controller inputs., hence an AFPID controller is designed here to adjust the three PID parameters (kp,ki,kd) online in SDCS. The AFPID controller is implemented on an industrial PC utilizing Matlab Fuzzy Toolbox and Visual Studio software development. The experiment results indicate that this DMCS design in RCT presents excellent qualities both in measurement and control performance during the experimental process. The hardware and software configurations are also described in detail.