Distributed and lumped parameter chemical process systems energy based control

分布式和集中参数化学过程系统基于能量的控制

• 批准号: RGPIN-2016-06670
• 负责人: Dubljevic, Stevan
• 金额: $ 2.04万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=616451
• 关键词: Distributed; lumped; parameter; chemical; process

Distributed and lumped parameter chemical process systems energy (thermodynamics) based control represents the cornerstone of the final attempt to merge the physical and fundamental energy (thermodynamics) based concepts with control and/or regulation of dynamical systems. In general, the fundamental thermodynamical concepts in chemical process industry are well understood and explored, while on the other hand chemical process systems control realizations independently address the issue of regulation of chemical process systems without taking into account fundamental thermodynamics laws. Controller design considers signal processing point of view ( a plant is dynamical system with signals and a controller is another signal processing entity). This motivates a novel conceptual paradigm shift in control design which considers a plant from the energy-processing viewpoint, where one views a plant as an energy-transformation system with multi interconnections (ports), as opposed to a signal-transformation system. This framework naturally fits chemical and materials processing plants since these systems have a natural generalized energy-conservation systems representation usually given by some control volume whereas the energy exchange through the system's boundary is well defined. In other words, the stored energy=supplied energy + desired dissipation, so that the control objective becomes an issue of preserving the energy-conservation property with desired energy and dissipation function. In other words, the design is centered on energy shaping and damping assignments. This setting is applicable to lumped and distributed parameter chemical and materials process systems, and design and active control realizations is given as interaction with the environment through the boundary of system. There are various representations of port-Hamiltonian (``energy'') systems which can be directly linked to other forms of energy (internal, thermal, kinetic, chemical that cannot be converted into each other without an intrinsic efficiency loss). Such a rich and naturally recognized physical system representations need to be addressed by linking the control and regulator realizations within the realm of optimal/constrained/robust control, and by spanning from micro-molecular (lab-on-the chip) chemical plant settings to the large chemical, materials, petrochemical plants. The expected contributions arising from the proposed program have potential to significantly advance the state of the art in development of process systems engineering techniques for complex systems, with applicability to a wide variety of application areas including steel processing, food and material manufacturing, algal utilization in biofuels and/or waste water treatments, chemical reactors (in petroleum industry), heat exchanger networks, zero-energy geothermal/solar renewable homes.

基于分布和集中参数的化学过程系统能量(热力学)控制是将基于物理和基本能量(热力学)的概念与动力系统的控制和/或调节相结合的最终尝试的基石。总体而言，人们对化工过程工业中的基本热力学概念有很好的理解和探索，而另一方面，化工过程系统的控制实现独立地解决了化工过程系统的调节问题，而不考虑基本的热力学定律。控制器设计考虑了信号处理的角度(对象是带有信号的动态系统，控制器是另一个信号处理实体)。 这促使了控制设计中一种新的概念范式的转变，它从能量处理的角度来考虑工厂，其中一个人将工厂视为具有多个互连(端口)的能量转换系统，而不是信号转换系统。这个框架自然适合化学和材料加工厂，因为这些系统有一个自然的广义能量守恒系统表示，通常由一些控制体积给出，而通过系统边界的能量交换是很好地定义的。换言之，存储能量=供给能量+期望耗散，使得控制目标变成以期望能量和期望耗散函数保持能量守恒性的问题。换句话说，设计的中心是能量塑造和减振分配。这种设置适用于集中参数和分布参数的化工和材料过程系统，其设计和主动控制实现是通过系统边界与环境的相互作用。端口-哈密顿(“能量”)系统有多种表示形式，它们可以直接与其他形式的能量(内部的、热的、动能的、化学的、相互转化的)联系在一起，而不损失固有的效率。这种丰富和自然识别的物理系统表示需要通过将最优/约束/稳健控制领域内的控制和调节器实现联系起来，并通过从小分子(芯片上实验室)化工厂设置到大型化学、材料、石化工厂来解决。 拟议计划产生的预期贡献有可能显著推动复杂系统过程系统工程技术发展的最先进水平，适用于广泛的应用领域，包括钢铁加工、食品和材料制造、藻类在生物燃料和/或废水处理中的利用、化学反应堆(石油工业)、热交换器网络、零能地热/太阳能可再生住宅。