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11. 发明授权

US08703940B2 Process for preparing 3,6-dihydro-1,3,5-triazine derivatives 有权
标题翻译：制备3,6-二氢-1,3,5-三嗪衍生物的方法
公开(公告)号：US08703940B2
公开(公告)日：2014-04-22
申请号：US12742286
申请日：2008-11-12
申请人： Benjamin List , Xu Cheng
发明人： Benjamin List , Xu Cheng
IPC分类号： C07D251/18
CPC分类号： C07D251/48
摘要： A process for the synthesis of 3,6-dihydro-1,3,5-triazine derivatives is claimed wherein a biguanid is reacted with acetaldehyde in the presence of an inorganic and/or organic base. The process can be carried out at mild and therefore economical reaction conditions.
摘要翻译：要求合成3,6-二氢-1,3,5-三嗪衍生物的方法，其中在无机和/或有机碱的存在下，双胍与乙醛反应。该方法可以在温和且经济的反应条件下进行。

12. 发明授权

US08140296B2 Method and apparatus for generalized performance evaluation of equipment using achievable performance derived from statistics and real-time data 有权
标题翻译：使用从统计和实时数据得出的可实现性能的设备的广义性能评估的方法和装置
公开(公告)号：US08140296B2
公开(公告)日：2012-03-20
申请号：US12047139
申请日：2008-03-12
申请人： Peter N. Francino , Xu Cheng , Frederick C. Huff
发明人： Peter N. Francino , Xu Cheng , Frederick C. Huff
IPC分类号： G06F11/30
CPC分类号： F22B1/1846 , F01K13/02 , F23J3/023 , F23N5/242 , F23N2023/44 , F28F27/00
摘要： A statistical performance evaluation system for a thermodynamic device and process uses the achievable performance derived from statistics and real-time data for the device or process to evaluate the current performance of the device or process, and to adjust the operations of the device or process accordingly, or provide feedback to an operator or other monitoring system for taking corrective actions to obtain performance approaching the optimum achievable performance. The achievable performance of the device or process is derived from data collected during operational periods when the best achievable performance is anticipated, such as after maintenance is performed, and supersedes the ideal or design performance specified by the manufacturer, which typically does not represent the actual operating conditions in the field, as the basis for evaluating the real-time performance of the device. The statistical performance evaluation system may set desired upper and lower limits for performance parameters, and compare desired limits to the actual performance parameter values to determine the readjustment to be made to the operation of the device or process.
摘要翻译：热力学设备和过程的统计性能评估系统使用从设备或过程的统计数据和实时数据得到的可实现性能来评估设备或过程的当前性能，并相应地调整设备或过程的操作或者向操作者或其他监控系统提供反馈以采取纠正措施以获得接近最佳可实现性能的性能。设备或过程的可实现的性能来源于在预期达到最佳可实现性能的运行期间收集的数据，例如在执行维护之后，并取代制造商规定的理想或设计性能，通常不代表实际操作条件在现场作为评估设备实时性能的基础。统计性能评估系统可以设置性能参数的期望上限和下限，并且将期望的限制与实际性能参数值进行比较，以确定对装置或过程的操作进行的重新调整。

13. 发明申请

US20110010138A1 METHODS AND APPARATUS TO COMPENSATE FIRST PRINCIPLE-BASED SIMULATION MODELS 有权
标题翻译：补偿第一原理模拟模型的方法和装置
公开(公告)号：US20110010138A1
公开(公告)日：2011-01-13
申请号：US12501262
申请日：2009-07-10
申请人： Xu Cheng , Richard Williams Kephart , Charles Menten
发明人： Xu Cheng , Richard Williams Kephart , Charles Menten
IPC分类号： G06F17/11
CPC分类号： G06F17/5009 , G05B13/042 , G05B17/02
摘要： Methods and apparatus to compensate first principle-based simulation models are disclosed. An example method to compensate a first-principle based simulation model includes applying one or more first test inputs to a process system to generate first output data, applying one or more second test inputs to a first principle model to generate second output data, generating an error model based on the first and second output data, applying input data to the first principle model to generate simulation model output data, and compensating the model data via the error model to generate compensated model output data.
摘要翻译：公开了补偿第一原理模拟模型的方法和装置。用于补偿基于第一原理的模拟模型的示例性方法包括将一个或多个第一测试输入应用于过程系统以产生第一输出数据，将一个或多个第二测试输入应用于第一原理模型以产生第二输出数据，基于第一和第二输出数据的误差模型，将输入数据应用于第一原理模型以生成模拟输出数据，并通过误差模型补偿模型数据，生成补偿模型输出数据。

14. 发明授权

US07826908B2 Variable rate feedforward control based on set point rate of change 有权
标题翻译：基于设定点变化率的变量前馈控制
公开(公告)号：US07826908B2
公开(公告)日：2010-11-02
申请号：US11934633
申请日：2007-11-02
申请人： Xu Cheng , Charles H. Menten , Richard W. Kephart
发明人： Xu Cheng , Charles H. Menten , Richard W. Kephart
IPC分类号： G05B13/02 , G05D3/12 , G05D5/00 , G05D9/00 , G05D11/00 , G05D17/00 , F01K13/02 , F01K7/40
CPC分类号： G05B13/021 , G05B2219/41221 , G05B2219/41435
摘要： A method of controlling a power generating unit or other process equipment with a slow reaction time includes creating a feedforward control signal to selectively include a fast response rate component or a slow response rate component based on the average rate at which a load demand set point signal has changed during a particular previous period of time. The method then uses the developed feedforward control signal to control the power generating equipment or other slowly reacting process equipment. In particular, a control method switches between introducing a fast or a slow response component within a feedforward control signal based on whether the change in the load demand set point over a particular period of time in the past (e.g., an average rate of change of the load demand set point signal) is greater than or less than a predetermined threshold. This method is capable of providing a relatively fast control action even if the expected load demand set point change is in a small range. In addition, this method does not require knowledge of the final or target load demand set point during the time in which the load demand set point is ramping up to a final target value and is not dependent on the ramp size, i.e., the ultimate difference between the load demand set point at the beginning of the load demand set point change and the final or target value of the load demand set point, making it more versatile than prior art systems.
摘要翻译：控制具有缓慢反应时间的发电单元或其他处理设备的方法包括：创建前馈控制信号，以根据负载需求设定点信号的平均速率选择性地包括快速响应速率分量或慢响应速率分量在特定的前一段时间内发生了变化。该方法然后使用开发的前馈控制信号来控制发电设备或其他缓慢反应的过程设备。特别地，控制方法基于过去特定时间段内的负载需求设定点的变化（例如，平均变化率）是否在前馈控制信号中引入快速或慢速响应分量之间切换负载需求设定点信号）大于或小于预定阈值。即使预期的负载需求设定点变化在小范围内，该方法也能够提供相对较快的控制动作。此外，该方法在负载需求设定点上升到最终目标值并且不依赖于斜坡大小的时间内，不需要知道最终或目标负载需求设定点，即最终差异在负载需求设定点开始时的负载需求设定点变化和负载需求设定点的最终或目标值之间，使其比现有技术系统更加通用。

15. 发明申请

US20090012653A1 USE OF STATISTICAL ANALYSIS IN POWER PLANT PERFORMANCE MONITORING 有权
标题翻译：统计分析在发电厂性能监测中的应用
公开(公告)号：US20090012653A1
公开(公告)日：2009-01-08
申请号：US12047217
申请日：2008-03-12
申请人： Xu Cheng , Frederick C. Huff , Peter N. Francino , Konrad Swirski
发明人： Xu Cheng , Frederick C. Huff , Peter N. Francino , Konrad Swirski
IPC分类号： G06F1/26
CPC分类号： F23N5/242 , F23N2023/44 , F23N2025/24 , F23N2037/10 , G05B23/021 , G05B23/024 , G05B23/0294 , Y02P80/114
摘要： A technique of implementing performance monitoring in a power plant is appropriate to control operating parameters and factors connected with the efficiency of the energy production process in an energy marketplace that is more complex than in the past, and that takes into account more than just the cost of fuel. In particular, this method works well when the real costs of production are dependent on other variable costs besides the cost of fuel, such as environmental credits, equipment degradation and repair costs, as well as electrical energy trade market factors like ramp rate, LMP factors, and the ability to deliver contracted power levels and spot transactions. The power plant performance monitoring technique applies a statistical analysis to collected power plant data to determine the factors that are best controlled or changed to affect (increase) the efficiency or other primary performance indication of the plant, in whatever state or operating level the plant is run. Because heat rate calculation applications are typically performed on-line, it is possible to analyze collected plant data in detail and to apply for example, principal component analysis (PCA) and linear and nonlinear regression analysis to the data, which enables the performance method to obtain a more accurate detection of the influence of the principal process parameters that affect heat rate deviation (efficiency), as well as to establish baseline or best-possible operational constraints to be used to control the plant in the future. This performance based control methodology will allow for near optimum performance of power plants by constantly allowing for refinement and best practices and control to be realized.
摘要翻译：在电厂中实施性能监测的技术适用于控制与能源市场中能源生产过程效率相关的运行参数和因素，这些能源市场比以往更复杂，并且不仅考虑到成本的燃料。特别是，当生产的实际成本取决于其他可变成本，除了燃料成本（如环境信贷，设备退化和维修成本）以及电能贸易市场因素如升温速率，LMP因素，以及提供合同权力水平和现货交易的能力。电厂性能监测技术对收集的电厂数据进行统计分析，以确定最佳控制或改变的因素，以影响（增加）工厂的效率或其他主要性能指标，无论工厂的任何状态或操作级别跑。由于热速率计算应用通常在线进行，因此可以详细分析采集的工厂数据，并将主成分分析（PCA）和线性和非线性回归分析应用于数据，这使得性能方法能够更准确地检测影响热耗率偏差（效率）的主要工艺参数的影响，以及建立将来用于控制工厂的基准或最佳可能的操作限制。这种基于性能的控制方法将通过不断允许精细化和最佳实践和控制来实现发电厂的近似最佳性能。

16. 发明授权

US07383790B2 Method and apparatus for controlling soot blowing using statistical process control 有权
标题翻译：使用统计过程控制来控制吹灰的方法和装置
公开(公告)号：US07383790B2
公开(公告)日：2008-06-10
申请号：US11146170
申请日：2005-06-06
申请人： Peter N. Francino , Xu Cheng
发明人： Peter N. Francino , Xu Cheng
IPC分类号： F22B37/48
CPC分类号： F23J3/023 , F22B1/1846 , F28G15/003
摘要： A statistical process control system employs a consistent soot blowing operation for a heat exchange section of, for example, a fuel burning boiler, collects heat absorption data for the heat exchange section and analyzes the distribution of the heat absorption data as well as various parameters of the heat absorption distribution to readjust the soot blowing operation. The statistical process control system may set a desired lower heat absorption limit and a desired upper heat absorption limit and compare them, respectively, with an actual lower heat absorption limit and an actual upper heat absorption limit to determine the readjustment to be made to the soot blowing operation. Alternatively, the statistical process control system may be used to determine permanent slagging of the heat exchange section.
摘要翻译：统计过程控制系统对例如燃料燃烧锅炉的热交换部分采用一致的吹灰操作，收集热交换部分的吸热数据并分析吸热数据的分布以及各种参数吸热分布重新调整吹灰操作。统计过程控制系统可以设定期望的较低吸热极限和期望的上限吸热极限，并将它们分别与实际的较低吸热极限和实际上限吸热极限进行比较，以确定对烟灰进行的重新调整吹风操作。或者，统计过程控制系统可用于确定热交换部分的永久结渣。

17. 发明申请

US20060085363A1 Method and apparatus for providing load dispatch and pollution control optimization 有权
标题翻译：提供负荷调度和污染控制优化的方法和装置
公开(公告)号：US20060085363A1
公开(公告)日：2006-04-20
申请号：US10969752
申请日：2004-10-20
申请人： Xu Cheng , Frederick Huff
发明人： Xu Cheng , Frederick Huff
IPC分类号： G06F17/00
CPC分类号： F01K13/02 , G06Q10/04 , G06Q10/0637 , G06Q30/0283 , Y02E40/76 , Y04S10/54 , Y04S10/545 , Y04S50/14
摘要： An economic dispatch program allocates a load demand and an emission allowance of a power generation system among various power plants to determine the operational set-points and the pollution control set-points of each of the various power plants in a manner that minimizes the total operating cost for the power generation system, including the pollution control cost. The economic dispatch program uses the pollution control set-points and the load set-points of the various power plants as decision variables and takes into consideration the pollution control costs of the various power plants in allocating the load demand. During operation, the economic dispatch program takes into consideration the pollution credits available to the various power plants in allocating the load demand and pollution control level to determine the optimal operating solution for the power plants.
摘要翻译：经济调度方案分配各发电厂的发电系统的负荷需求和排放量，以确定各种发电厂的运行设定点和污染控制设定点，使总运行量最小化发电系统的成本，包括污染控制成本。经济调度方案采用污染控制设定点和各种发电厂的负荷点作为决策变量，考虑到各种发电厂在负荷需求分配中的污染控制成本。在运行中，经济调度方案考虑到各电厂可用的污染信用额度分配负荷需求和污染控制水平，确定发电厂的最佳运行方案。

18. 发明授权

US5720897A Transition metal bleach activators for bleaching agents and detergent-bleach compositions 失效
标题翻译：用于漂白剂和洗涤剂漂白剂组合物的过渡金属漂白活化剂
公开(公告)号：US5720897A
公开(公告)日：1998-02-24
申请号：US377380
申请日：1995-01-25
申请人： Russell S. Drago , Xu Cheng
发明人： Russell S. Drago , Xu Cheng
IPC分类号： B01J31/18 , C11D3/39 , C01B15/04 , C08F4/42
CPC分类号： B01J31/181 , B01J31/1805 , B01J31/1815 , C11D3/3932 , B01J2531/16 , B01J2531/72 , B01J2531/842
摘要： Transition metal containing composition for use as a bleach catalyst comprising at least one transition metal ion coordinated with at least one chelating ligand to form a complex capable of binding O.sub.2 H.sup.-. The ligand(s) should have at least two strong donor functional groups capable of coordinating with a single one of the transition metal ions in the complexes to form a six-member or larger ring. The complexes are capable of coordinating peroxide groups while the ligand functions to substantially prevent precipitation of hydroxides of the transition metal ions in aqueous alkaline solutions of the transition metal containing composition. A detergent-bleach composition comprising an effective amount of a peroxide bleaching agent and an effective amount of the bleach catalyst described above, and a bleaching agent composition comprising a peroxide compound present in an amount effective to impart a bleaching action and a catalyst present in an effective amount to promote the bleaching action of the peroxide compound comprising the transition metal composition described above are also disclosed, as well as a catalyst present in an effective amount to promote the bleaching action of peroxide compounds in a detergent-bleach composition comprising the transition metal composition described above.
摘要翻译：用作漂白催化剂的含金属过渡金属组合物，其包含与至少一种螯合配体配位的至少一种过渡金属离子以形成能结合O 2 -H的络合物。配体应具有能与配合物中的单个过渡金属离子配位的至少两个强供体官能团，以形成六个或更大的环。配合物能够配位过氧化物基团，同时配体起到基本上防止含过渡金属的组合物的碱性水溶液中过渡金属离子的氢氧化物析出的作用。一种洗涤剂漂白组合物，其包含有效量的过氧化物漂白剂和有效量的上述漂白催化剂，以及漂白剂组合物，其包含以有效赋予漂白作用的量存在的过氧化物和存在于还公开了促进包含上述过渡金属组合物的过氧化物的漂白作用的有效量，以及有效量的促进过氧化物化合物在含有过渡金属的去污剂组合物中的漂白作用的催化剂组合物。

19. 发明授权

US09771834B2 Method and apparatus for providing load dispatch and pollution control optimization 有权
公开(公告)号：US09771834B2
公开(公告)日：2017-09-26
申请号：US10969752
申请日：2004-10-20
申请人： Xu Cheng , Frederick C. Huff
发明人： Xu Cheng , Frederick C. Huff
IPC分类号： G06Q30/00 , F01K13/02 , G06Q10/04 , G06Q10/06 , G06Q30/02
CPC分类号： F01K13/02 , G06Q10/04 , G06Q10/0637 , G06Q30/0283 , Y02E40/76 , Y04S10/54 , Y04S10/545 , Y04S50/14
摘要： An economic dispatch program allocates a load demand and an emission allowance of a power generation system among various power plants to determine the operational set-points and the pollution control set-points of each of the various power plants in a manner that minimizes the total operating cost for the power generation system, including the pollution control cost. The economic dispatch program uses the pollution control set-points and the load set-points of the various power plants as decision variables and takes into consideration the pollution control costs of the various power plants in allocating the load demand. During operation, the economic dispatch program takes into consideration the pollution credits available to the various power plants in allocating the load demand and pollution control level to determine the optimal operating solution for the power plants.

20. 发明授权

US09606531B2 Decentralized industrial process simulation system 有权
公开(公告)号：US09606531B2
公开(公告)日：2017-03-28
申请号：US12628821
申请日：2009-12-01
申请人： Xu Cheng , Richard W. Kephart , Cheng T. Wen , B. Erik Ydstie
发明人： Xu Cheng , Richard W. Kephart , Cheng T. Wen , B. Erik Ydstie
IPC分类号： G06G7/48 , G05B19/418
CPC分类号： G05B19/41885 , G05B2219/32345 , G05B2219/32357 , Y02P90/18 , Y02P90/26
摘要： A high fidelity distributed plant simulation technique includes a plurality of separate simulation modules that may be stored and executed separately in different computing devices. The simulation modules communicate directly with one another to perform accurate simulation of a plant, without requiring a centralized coordinator to coordinate the operation of the simulation system. In particular, numerous simulation modules are created, with each simulation module including a model of an associated plant element and being stored in different drops of a computer network to perform distributed simulation of a plant or a portion of a plant. At least some of the simulation modules, when executing, perform mass flow balances taking into account process variables associated with adjacent simulation modules to thereby assure pressure, temperature and flow balancing.

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