Study of marine power station based on active disturbance rejection control technique

摘要

This paper expounds a new type of control system for marine power station, which combines the Industrial Ethernet technology with Active Disturbance Rejection Control (ADRC). The technology parameters of marine power station generator sets were collected real-time by the system. The system allows the distance measurement where the data is sent to the S7-1200 PLC using Ethernet bus to upper computer(WinCC). The data can be also accessed using Human Machine Interface (HMI) on an operators screen, which provides complete centralized management. The lower computer composed of three S7-1200 PLC distributed control systems, which have made an decentralized control for marine power station to realize frequency regulation control of marine power station. In this paper, ADRC frequency regulation of marine Power Station System was proposed, which was used to solve the problem existing in marine engineering ship commonly in the rapidly changing in load and the unknown disturbance. Experimental results show that the control system of marine power station based on ADRC can effectively restrain the dynamic load disturbance, and the algorithm has strong robustness.