基于FPC2000DCS的发酵过程智能控制系统

FPC2000 Distributed Control System of Ferment Processes

针对我国发酵企业规模相对较小而控制要求较高的情况 ,开发了适用于发酵过程优化控制的低成本、开放型、高性价比的集散控制系统。硬件采用分层阶递的分布式结构 ,软件采用面向对象的模块式编程方法。针对非线性、时变、大滞后的发酵过程 ,将智能控制技术融入传统的集散控制系统中。采用模糊控制、专家系统与常规控制相结合的技术 ,设计了罐温复合模糊控制系统、PH参数自调整模糊控制系统、溶氧变区域专家控制系统。控制精度与常规控制方法相比提高 5 0 %。自主研制、开发的FPC2 0 0 0发酵过程集散控制系统具有方便、灵活、易用、简单、可靠、高性能的特点 ,已在

The industrial scale of the ferment factories in our country is small, and the requirement of the control performances is high, so the distributed control system, with low cost and high capability, is developed in the optimization control of biotechnology process. The layer construction is adopted in the hardware design, and the modularization programming method with the object orientation is utilized in the software design. In order to handle the strong nonlinear biotechnological processes with time varying parameters, the intelligent control technology is incorporated into the traditional distributed control system. The temperature fuzzy-PI control system, PH parameter self-tuning fuzzy control system, and expert control system of dissolved oxygen concentration varying areas are designed. The control accuracy increases by 50% in comparison with the accuracy via normal control method. The FPC2000 distributed control system of biotechnological processes is independently developed and manufactured with the convenient, flexible, easy, simple, and credible characteristics. It has already been successfully applied to the biotechnological process in more than ten factories.