Siemens Aktiengesellschaft

Siemens Energy, Inc.

Siemens Power Generation, Inc.

Jatinder P Singh

Steffen Udluft

Volkmar Sterzing

Siegmund Düll

Hans-Gerd Brummel

Satish B Gadde

Alexander Hentschel

Damien G Teehan

Glenn E Sancewich

Gary V Hildebrandt

Danny W Kozachuk

Joseph L Kollar

Christopher Humphrey

Stefan Schneider

Fadi Tadros

Siegmund DÜLL

An interactive assistance system and method for computer-aided control optimization for a technical system is provided. For example, a gas or wind turbine, in particular for optimizing the action sequence or the control variables of the plant (e.g. gas supply, compression), wherein an input terminal is provided for reading at least one status parameter providing a first system status of the technical system, and at least one setting parameter for adapting a reward function. A simulation module having a pre-trained neuronal network, simulating the plant, serves to simulate an action sequence on the technical system, starting from the first system status and to the prediction of the resulting statuses of the technical system.

Method for computer-aided installation control optimization using a simulation module

The invention concerns a method for the computerized control and/or regulation of a technical system (T). Within the context of the method according to the invention, there is implemented in a preset regulating process (CO, CO) an exploration rule (EP) by means of which new, as yet unknown, states (x) of the technical system (T) are started, a simulation model (SM) of the technical system (T) checking whether the actions (a) of the exploration rule (EP) lead to sequential states (x') lying within predetermined thresholds. Only in that case is the corresponding action (a) performed according to the exploration rule (EP) on the technical system. The method according to the invention enables new states to be explored within the framework of the operation of a technical system, it being ensured through checking of appropriate thresholds that the exploration is carried out imperceptibly and does not lead to incorrect operation of the technical system. The method according to the invention is suitable in particular for controlling or regulating gas turbines or wind turbines.

Method for the computerized control and/or regulation of a technical system

A method for computer-aided closed and/or open-loop control of a technical system is provided. A first value of an output quantity is predicted on a data-based model at a current point in time. A second value of the output quantity is determined from an analytical model. The state of the technical system at the current point is assigned a confidence score in the correctness of prediction of the data-based model. A third value of the output quantity is determined from the first and second value as a function of the confidence score for controlling the technical system. A suitable value for the output quantity can be derived from the analytical model even for regions of the technical system in which the quality of prediction of the data-based model is low because of a small set of training data. The technical systems can be turbines, such as gas turbines.

Method for computer-aided closed-loop and/or open-loop control of a technical system

A method of controlling fuel flow to a combustor () of a gas turbine engine () during startup of the engine includes determining a relationship between Cand valve position for a flow control valve (e.g.,) in a fuel supply () to the combustor as a function of at least one real time parameter of fuel () in the fuel supply. The method also includes determining a value of the at least one parameter of the fuel before initiating a flow of the fuel to the combustor, and then calculating a first actual Cvalue for the flow control valve at a target flow rate using the determined value of the parameter. The method then includes positioning the flow control valve to a first position corresponding to the actual Cvalue based upon the determined relationship between Cand valve position, and initiating the flow of fuel to the combustor through the flow control valve.

Fuel control for starting a gas turbine engine

A method of controlling a gas turbine system () may include controlling an inlet guide vane position () to maintain a turbine () exhaust temperature at a corrected value that is a function of a compressor () inlet temperature and a turbine () normalized load. The method may include selecting the minimum value () of a part load tunable value, a part load maximum value and a fixed maximum value of a turbine () exhaust temperature for the corrected value. A corrected value setpoint may be determined () for the gas turbine system () operating at a part load condition where at least one of a fuel flow rate and the inlet guide vane position is controlled () so the corrected value does not exceed the corrected value setpoint. The corrected value may prevent a turbine () engine from exceeding its firing temperature during operation and ensure the engine operates within combustor dynamics and emissions limits.

Method of controlling a power generation system

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Orlando, FL, United States of America

Jatinder P Singh