Optimal control strategy of waste heat recovery organic rankine cycles

余热回收有机朗肯循环优化控制策略

• 批准号: 451433-2013
• 负责人: Macnab, Chris
• 金额: $ 1.75万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=575414
• 关键词: Optimal; control; strategy; waste; heat

Many industrial processes have a surprisingly low efficiency when considering their use of energy: often wasting nearly two thirds of the source energy as heat that is released to the atmosphere. The ability to capture this heat and use it to generate clean electrical power can provide a considerable boost to the economics of the host plant as well as reducing the environmental impact associated with the power usage, principally by offsetting electrical power generated from other sources such as coal. The present project is an examination of the waste-heat recovery process with a view to developing, configuring and optimizing the control systems involved. The specific focus of this work will be the control of Organic Rankine Cycle systems, such as those owned and operated by Genalta Power, as a means to generate electricity. In general, the goal of the overall system is to maximize the extracted energy as indicated by electricity generated, traded-off against associated costs including wear and use of the actuators. The proposed work on control system design will explore the application of advanced control strategies using linear and nonlinear methods and compare these against each other and against standard industrial control such as PID. The best performing control system will be identified based on meeting the objectives of maximal energy extraction, longest predicted life of the process, cheapest capital and operating costs, and safest operation. The inherent trade-offs and relative merits of the schemes will be explored and reported on. The end result will be a control system useful for Genalta and trained personnel able to contribute directly to waste-heat recovery systems design and operation.

考虑到能源的使用，许多工业过程的效率低得惊人：通常将近三分之二的能源浪费为释放到大气中的热量。捕获这种热量并使用它来产生清洁电力的能力可以为主机厂的经济性提供相当大的提升，并减少与电力使用相关的环境影响，主要是通过抵消从其他来源（如煤）产生的电力。 本项目是对废热回收过程的检查，旨在开发、配置和优化所涉及的控制系统。这项工作的具体重点将是控制有机朗肯循环系统，例如Genalta Power拥有和运营的系统，作为发电的一种手段。通常，整个系统的目标是最大化所提取的能量，如所产生的电力所指示的，权衡包括致动器的磨损和使用的相关成本。 控制系统设计方面的拟议工作将探索使用线性和非线性方法的先进控制策略的应用，并将其与标准工业控制（如PID）进行比较。最佳性能的控制系统将根据满足最大能量提取、最长的过程预测寿命、最便宜的资本和运营成本以及最安全的运营等目标来确定。将探讨和报告这些方案的内在权衡和相对优点。最终结果将是一个对Genalta有用的控制系统，并培训能够直接为废热回收系统设计和操作做出贡献的人员。