Patent application number | Description | Published |
20110277539 | Method and device for monitoring the combustion of fuel in a power station - A method and a device for monitoring the combustion of fuel in a power station are provided. An actual concentration distribution of a material in a combustion chamber is measured, the actual concentration distribution is evaluated, taking into consideration a combustion stochiometry, and conclusions are drawn regarding a composition of the fuel on the basis of the evaluation that has been carried out. | 11-17-2011 |
20110287372 | Method and Device for Monitoring the Combustion Process in a Power Station on the Basis of an Actual Concentration Distribution of a Material - Methods and a device for monitoring the combustion process in a power station are provided. An actual concentration distribution of a material and/or an actual temperature distribution are measured in the combustion chamber. Conclusions are drawn regarding the type of combustion material on the basis of the measured actual concentration distribution or temperature distribution. A concentration distribution or temperature distribution of a material that has been determined using a sample fuel is compared with the measured actual concentration distribution or temperature distribution. | 11-24-2011 |
20120058438 | Method and Device for Optimizing Combustion in a Power Plant - Methods and devices for optimizing combustion of fuel in a combustion chamber of a power plant are provided. A real concentration distribution of a material and/or a real temperature distribution in the combustion chamber is measured in at least one dimension. The real concentration distribution and/or temperature distribution is evaluated and a combustion of fuel is controlled such that a symmetric concentration distribution and/or temperature distribution in the at least one dimension arises. During the evaluation at least one characteristic of the symmetry of the real concentration distribution and/or temperature distribution is determined, and during the controlling at least one control parameter is changed depending on the at least one characteristic. | 03-08-2012 |
20120072045 | METHOD AND DEVICE FOR CONTROLLING THE TEMPERATURE OF STEAM FOR A STEAM POWER PLANT - A state controller, in order to output a desired steam temperature as a controlled variable, feeds back several steam states in a superheater for superheating steam using a monitor, which calculates the steam states, and the desired steam temperature is forwarded to a further controller for controlling the temperature. In order to achieve a stable and accurate control of the steam temperature, it is proposed that the state controller be a linear quadratic controller. | 03-22-2012 |
20130133751 | Method and device for regulating the production of steam in a steam plant - A method for regulating the production of steam from feed water in an evaporator of a steam plant is provided. A state regulator calculates a plurality of states of a medium in the evaporator by means of an observer and, on the basis thereof, determines a feed water mass flow rate as a regulating variable. In order to obtain a stable and precise regulation of the temperature of the steam, the state regulator is a linear-quadratic regulator. | 05-30-2013 |
20140047899 | DEVICE FOR DETERMINING A COMPOSITION OF FUEL IN A COMBUSTION CHAMBER OF A POWER STATION - A device for determining a composition of fuel in a combustion chamber of a power station is provided. The device includes a measuring device for measuring an actual concentration distribution of a substance in a combustion chamber' an analysis device for analyzing the actual concentration distribution, taking into account a combustion stochiometry; and an evaluation device for determining a composition of fuel based upon the analyzing. | 02-20-2014 |
20150233881 | APPARATUS FOR DETERMINING PROPERTIES OF A DUST MIXTURE FLOWING THROUGH A CROSS-SECTIONAL AREA OF A COAL DUST LINE - An apparatus for determining properties of a dust mixture flowing through a cross-sectional area of a coal dust line is provided. It has at least one sensor, which has at least one transmitting device for coupling electromagnetic and/or acoustic radiation into the dust mixture and at least one receiving device for generating a measuring signal on the basis of radiation reflected in the dust mixture or radiation transmitted by the dust mixture. Also provided is an evaluation device, which determines the property of the dust mixture on the basis of the measuring signal. The at least one transmitting device and the at least one receiving device or a measuring head are rotatably arranged at least approximately in the middle of the cross-sectional area. | 08-20-2015 |
20150275688 | STATE OBSERVER FOR A STEAM GENERATOR OF A THERMAL POWER PLANT - A state observer for a steam generator of a thermal power plant is provided. Accordingly, provision is made for the state observer to be a multi-variable state observer which has a Kalman filter designed for linear-quadratic state feedback. The state observer can be used for validating measured variables of the steam generator of the thermal power plant, wherein measured variables of the steam generator are compared with output variables of the state observer. | 10-01-2015 |
20150276209 | MULTI-VARIABLE STATE CLOSED-LOOP CONTROL FOR A STEAM GENERATOR OF A THERMAL POWER PLANT - A device for closed-loop control of a plurality of state variables of a steam generator of a thermal power plant is provided. In order to achieve stable and exact closed-loop control of the plurality of state variables, a multi-variable control/controller controls the plurality of state variables and uses a linear quadratic controller for this multi-variable control/controller. | 10-01-2015 |