1
Frederick C Huff, Xu Cheng, Peter N Francino: Method and apparatus for providing economic analysis of power generation and distribution. Emerson Process Management Power & Water Solutions, Marshall Gerstein & Borun, January 6, 2009: US07474080 (21 worldwide citation)

An economic dispatch program optimally allocates load demand specifying real power and reactive power to be generated by a power plant among various power generators in a manner so that each of the power generators are operated within its optimal operating space as defined by a reactive capability c ...


2
Frederick C Huff, Xu Cheng, Peter N Francino: Method and apparatus for providing economic analysis of power generation and distribution. Emerson Process Management Power & Water Solutions, Marshall Gerstein & Borun, October 30, 2007: US07288921 (18 worldwide citation)

An economic dispatch program optimally allocates load demand specifying real power and reactive power to be generated by a power plant among various power generators in a manner so that each of the power generators are operated within its optimal operating space as defined by a reactive capability c ...


3
Frederick C Huff, Xu Cheng, Peter N Francino: Method and apparatus for determining actual reactive capability curves. Emerson Process Management Power & Water Solutions, Marshall Gerstein & Borun, June 10, 2008: US07385300 (12 worldwide citation)

A system for generating updated reactive capability curves of a generator operates the genarator at a number of operating load levels and at a number of different power factors to collect data regarding the real and reactive power generated at each of the various operating load levels and power fact ...


4
Frederick C Huff, Xu Cheng, Peter N Francino: Method and apparatus for determining actual reactive capability curves. Emerson Process Management Power & Water Solutions, Marshall Gerstein & Borun, March 13, 2007: US07190149 (12 worldwide citation)

A system for generating updated reactive capability curves of a generator operates the generator at a number of operating load levels and at a number of different power factors to collect data regarding the real and reactive power generated at each of the various operating load levels and power fact ...


5
Xu Cheng, Charles H Menten, Richard W Kephart: Variable rate feedforward control based on set point rate of change. Emerson Process Management Power & Water Solutions, November 2, 2010: US07826908 (12 worldwide citation)

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 signa ...


6
Xu Cheng: Two-stage model predictive control technique. Emerson Process Management Power & Water Solutions, Marshall Gerstein & Borun, April 19, 2011: US07930045 (10 worldwide citation)

A two-stage model predictive control (MPC) controller uses a process model and two separate MPC control modules, including a feedforward MPC control module and a feedback MPC control module, to determine a set of control signals for use in controlling a process. The feedforward MPC control module us ...


7
Peter N Francino, Frederick C Huff, Harry Robert Winn, David Glen Foster: Optimized control of power plants having air cooled condensers. Emerson Process Management Power & Water Solutions, Marshall Gerstein & Borun, April 30, 2013: US08433450 (6 worldwide citation)

An optimization and control system for a utility plant that uses fan based air cooled condensers controls the operation of the power generation system at the plant in conjunction with the operation of the air cooled condensers so as to run the power plant at an optimum operating point associated wit ...


8
Xu Cheng, Richard W Kephart: Method and apparatus for improving steam temperature control. Emerson Process Management Power & Water Solutions, Marshall Gerstein & Borun, September 19, 2006: US07109446 (6 worldwide citation)

A system for analyzing the impact of operating soot blowers in a heat transfer section of a power plant determines a steam temperature influencing sequence and calculates a feed-forward signal to be applied to a steam temperature control system of the heat transfer section. The system operates a gro ...


9
Richard W Kephart, Kimberly Costlow, Michael Durbin, Xu Cheng, Richard Brown: Method for redundant controller synchronization for bump-less failover during normal and program mismatch conditions. Emerson Process Management Power & Water Solutions, Marshall Gerstein & Borun, January 22, 2013: US08359112 (5 worldwide citation)

The present invention relates generally to process control systems and devices and, more particularly, to an apparatus for and a method of implementing redundant controller synchronization for bump-less failover during normal and mismatch conditions at the redundant controllers. The redundant contro ...


10
Xu Cheng, Frederick C Huff, Peter N Francino, Konrad Swirski: Use of statistical analysis in power plant performance monitoring. Emerson Process Management Power & Water Solutions, Marshall Gerstein & Borun, June 12, 2012: US08200369 (4 worldwide citation)

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 variable costs besides the cost ...



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