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An expansion procedure to design partially decentralized controllers via model predictive control is proposed in this paper. Partially decentralized control is a control structure that lies between a fully decentralized structure and a fully centralized one, and has the advantage of achieving comparable performance as a fully centralized controller but with simpler structure. The proposed method follows the expansion method proposed in a previous paper where internal model control (IMC) was used to design controllers for non-square subsystems. The method requires computing the pseudo-inverse of a non-square matrix via pseudo-inverse factors. Instead, the proposed method uses dynamic matrix control (DMC) to design PID controllers for non-square subsystems without using additional factors. The effectiveness of the proposed method is demonstrated on several chemical examples. Simulation results show that the proposed method is simple and can achieve better performance. 相似文献
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低氮燃烧技术是适应我国超低污染排放政策的必然趋势。作为一项这十余年才发展起来的清洁煤燃烧技术,低氮燃烧技术在控制策略方面还较为薄弱。针对燃煤电站锅炉进行低氮燃烧改造后现有二次风配风控制的现状及问题,进行了原因分析。以成熟的燃烧热力学机理为支撑提炼出核心模型,采用先进建模、优化算法和控制逻辑等相关技术,研发出了一套面向二次风、SOFA风的低氮燃烧控制系统。最终给出了系统在300 MW锅炉机组的实际应用案例,不仅能够实现锅炉复杂工况下的智能配风、降低并保持NO_x低排放,而且稳定了SCR脱硝系统喷氨量,具有非常明显的经济效益和社会意义。 相似文献
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招金矿业股份有限公司夏甸金矿是一座现代化矿山也是全国10大黄金矿山之一。随着安环标准不断提高,夏甸金矿对于自身的环保义务更是提高了标准。选矿车间的破碎车间是粉尘产生的主要场所,对于破碎车间的粉尘采取综合防尘措施和抑尘的新技术、新工艺、新设备,以保证作业场所的粉尘浓度低于国家的卫生标准。目前粉尘的抑制主要分为散发控制技术和源头抑尘技术两大流派。夏甸金矿采用源头和散发混合控制的方法,使用BME的生物纳米抑尘技术,运用了当今最先进的生物纳米材料,将抑尘制剂与物体混合,使小颗粒粉尘聚合成大颗粒尘粒,将原来的所谓的除尘工作变成了抑尘,灰尘固化了,从而达到标本兼治。 相似文献
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