EP1654601A1 - Method and control system for operating a technical installation comprising several components, in particular a combustion installation for generating electric energy - Google Patents
Method and control system for operating a technical installation comprising several components, in particular a combustion installation for generating electric energyInfo
- Publication number
- EP1654601A1 EP1654601A1 EP03782265A EP03782265A EP1654601A1 EP 1654601 A1 EP1654601 A1 EP 1654601A1 EP 03782265 A EP03782265 A EP 03782265A EP 03782265 A EP03782265 A EP 03782265A EP 1654601 A1 EP1654601 A1 EP 1654601A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- value
- operating
- components
- burners
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25368—Start group of motors, machines in sequence, power up, down sequence
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2649—Burner
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Definitions
- Method and control system for operating a technical system comprising several components, in particular a combustion system for generating electrical energy
- the invention relates to a method and control system for operating a technical system comprising several components, wherein during the operation of the technical system each component that goes into or out of operation triggers an evaluation of at least one other component with a value number, the value numbers of each component are added up and those components which are to be switched on or off next are determined from the summed up value numbers.
- the technical installation is preferably an incineration installation for generating electrical energy.
- Technical systems usually include several components, which e.g. either implement a specific function of the technical system or which jointly perform a specific function.
- An example of a technical system in which components with different functions interact is e.g. a power plant for generating electrical energy.
- a power plant for generating electrical energy.
- the interaction of numerous components with different tasks is necessary:
- the most important components here are, for example, the turbines, the generators, the protection systems and the control system.
- An efficient operation of such a technical system is only possible if the use of the components mentioned is coordinated.
- the above-mentioned interaction of the components of the technical system is usually coordinated and monitored by a computer-aided control system.
- the degree of automation is often very high, so that human intervention in the operation of the technical system is only necessary if the automatic control has to master a current operating state of the technical system for which no solution or procedure is provided in the control programs of the control system ,
- These can be, for example, malfunctions that could not be considered in detail in the design of the control system, but also - from a human point of view - simple operational transitions during the operation of the technical system, which, however, often only require considerable effort as control technology Programs can be mapped. This can be the case, for example, if a large number of possible operating states can occur during the operation of the technical system and it should be possible to achieve a desired operating state from each of these operating states.
- a control program would then have to contain associated control instructions for each of these possible operating states in order to approach the desired operating state. It is often not possible to record all possible operating states of a technical system in a control program beforehand, so that in some cases the operating personnel of the technical system have to manually operate the components of the technical system.
- An example of such a technical system is a combustion system for generating electrical energy, which contains a plurality of burners u arranged in a combustion chamber.
- the use of the burners should be ensure that the fuel supplied is used as efficiently as possible to generate the required amount of electrical energy and to operate the system economically.
- careful operation of such a system is to be aimed for, which can be achieved, for example, by an even distribution of fire in the combustion chamber.
- Measuring devices are forced onto sources of interference which can lead to the technical system coming to a standstill if they do not function.
- WO02 / 052199 a generic device (see FIG. 1) is known, by means of which an economical operation of a technical system comprising several components is achieved by continuously evaluating at least one component for each component that goes into or out of operation other component is triggered with a value number, the value numbers of each component are added up and those components are determined from the added value numbers which are to be switched on or off next.
- connection and / or disconnection commands for components allow the determination of connection and / or disconnection commands for components on the basis of a current operating state of the components, so that a desired operating state of the technical system is reached.
- the burners used form a symmetrical flame pattern.
- each component is assigned at least one value number with regard to its arrangement in the technical system, and at least one further value number which comprises an operating state of the technical system.
- a sum value number is then determined for each component by forming a sum, so that the sum value numbers of the components can be used to determine which components are to go into or out of operation next.
- the invention is therefore based on the object of specifying a method and a corresponding device of the type mentioned at the beginning, by means of which as many different operating situations of the technical system as possible can be clearly determined which components are to be switched on or off next.
- the object is achieved by a generic method of the type mentioned at the beginning, wherein at least one component is assigned at least one initialization value and this initialization value is added to the total value numbers of the component.
- This initialization value changes the total value of the value numbers of at least one component.
- the initialization value can preferably comprise a numerical constant which is added to the summed up value numbers of the corresponding component.
- the initialization value can be specified manually or determined by an upstream processing unit.
- the initialization value can comprise a constant value which, after the desired preselection of one or more components, is transferred to the summers of the corresponding components.
- the components can be switched on and off in any order starting from any operating states.
- At least one operating criterion is advantageously assigned to at least one component and this operating criterion influences the initialization value of the component.
- the operating criterion includes, for example, information about the operating hours of the system components. It can then be determined that the component with the most operating hours is always the first to be put back into operation. Such a component then receives an initialization value which is influenced accordingly by the operating criterion, which, as described above, is added to the summed up value numbers of the component and the sum thus obtained is processed further.
- reset commands can act on the operating criteria and change them in such a way that, for example, an operating hour counter included in the operating criteria is reset and the value of the operating criterion is changed.
- the operating criterion can include further wear criteria.
- the influence on the initialization value can be determined, for example, by determining that component in a maximum value selection element whose operating criterion has the largest or smallest value.
- the operating criterion of this component can still be compared with a reference value.
- a component has the highest operating hours value of 10,000 operating hours. This value is then compared with a reference value of, for example, 12,000 operating hours. Since the current operating hours value of the component is below the reference value, there is no reason why this component should be in again next Operation should go and the corresponding initialization value is set appropriately, for example as a constant value.
- an activation and / or deactivation command for at least one component is issued on the basis of operating state values of the components with at least one setpoint specification.
- This configuration ensures that it can react automatically to changed operating requirements or malfunctions. For example, a higher output can be demanded from a combustion plant by specifying the setpoint. Knowledge of the current operating state is then necessary as a starting point for the generation of switch-on and / or switch-off commands.
- This operating state is represented by the operating state values of the components. On the basis of the current operating state values and the target value specification, corresponding switch-on and / or switch-off commands can then be issued, by means of which a desired operating state of the components is achieved in accordance with the target value specification.
- the invention further leads to a control system for operating a technical system comprising several components, wherein during the operation of the technical system each component that goes into or out of operation triggers an evaluation of at least one other component with a value number, the value numbers of each component are added up and those components which are to be switched on or off next are determined from the summed value numbers with at least one actuation logic module, by means of which at least one initialization value can be assigned to at least one component and this initialization value can be added to the summed value values of the component.
- the control system advantageously further comprises an operating criteria logic module, by means of which at least one at least one operational criterion is assigned to a component and this operational criterion influences the initialization value of the component.
- control system comprises a switching logic by means of which an activation and / or deactivation command for at least one component can be issued on the basis of the operating state values of the components and at least one setpoint assignment.
- FIG. 1 shows a generic control system from the prior art
- FIG. 2 shows a control system according to the invention.
- the computing unit 20 receives from the burners 1 and 2 their operating state values S1 and S2, respectively, which in the present case carry at least the information that the burner 1 or 2 in question has been switched on.
- the operating state values S1 and S2 are switched to signal preprocessing stages W1 and W2 of the computing unit 20.
- the signal preprocessing stages take the previously mentioned information from the operating state values S1 and S2 and, when connected to the exemplary operating state of burners 1 and 2, each assign an operating state number, for example the constant value 1.
- the operating state number of each burner is switched on the multiplier 30 assigned to the respective burner.
- These multipliers each receive at least one value number WZ1, WZ2 or WZ3 as a further input signal.
- the connected burner 1 triggers an evaluation of the other burners 2, 8, 3, 7, 4 and 6; the connected burner 2 triggers an evaluation of the other burners 1, 3, 4, 8, 5 and 7.
- the evaluation by the connected burner 1 takes place in the present exemplary embodiment in that the summers ⁇ 2, ⁇ 8, ⁇ 3, ⁇ 7, ⁇ 4 or ⁇ 6 assigned to the other burners 2, 8, 3, 7, 4 and 6 output the signals the multiplier 30 as shown in FIG 2 received as input signals.
- Each of the summers ⁇ l, ⁇ 2, ⁇ 3, ... ⁇ 8 sums up its associated input signals and transfers the respective sum value to downstream signal postprocessing stages NV1, NV2, NV3, ... NV8.
- the signal postprocessing stages for example, the output signal of the respective summer jesexuall, ⁇ 2, ⁇ 3,.. when the burner assigned to the respective signal post-processing stage or the respective summer is not in operation; If the respective burner is already in operation, the signal post-processing stage in question can, for example, instead of the output value of the respective summer, transfer a value other than the current evaluation 40 to the processing unit. Rather, this value can be selected so that the processing unit 35 detects burners that are already in operation and thus prevents them from being burned out. ne (useless) switch-on command received as command ZI, Z2, Z3, ... Z8.
- the main task of the processing unit 35 is to determine from the output signals of the signal postprocessing stages NV1, NV2, NV3, ... NV8 those burners which are to be switched on or off next using the commands ZI, Z2, Z3, ... Z8 , Whether the respective command ZI, Z2, Z3, ... Z8 is a switch-on or switch-off command depends on the next operating state from which the technical system is to operate, e.g. to achieve economical operation of the plant. If the system is to be brought from a current operating state to an operating state which requires a higher combustion output, the processing unit 35 determines switch-on commands as commands ZI, Z2, Z3, ... Z8 for the burners in order to ensure economical operation of the system achieve, for example, by switching on those burners which, in conjunction with the burners already connected, ensure a homogeneous temperature profile in the combustion chamber 15.
- the processing unit 35 determines switch-off commands as commands ZI, Z2, Z3,... Z8 for the burners, so that burners in operation are specifically switched off in this way will ensure that the remaining burners in operation ensure economic operation of the technical system, for example by generating a homogeneous temperature profile in the combustion chamber.
- the processing unit 35 is thus trained to specifically generate both switch-on and switch-off commands as commands ZI, Z2, Z3 ... Z8, depending on the requirements for a next operating state.
- the evaluation explained by way of example in FIG. 1 is now to be shown for further clarification with specific numerical values for the value numbers WZ1, WZ2 and WZ3 and for the outputs of the signal preprocessing stages W1 and W2.
- Burners 1 and 2 are said to have been switched on. This is reported to the signal preprocessing stages W1 and W2 using the operating state values S1 and S2.
- the signal preprocessing stage W1 generates the value one from the operating state value S1 of the burner 1 and switches this to three of the multipliers 30 according to FIG. 2.
- the multiplier 30a is used to evaluate the two burners 2 and 8 adjacent to the burner 1, the multiplier 30b and 30c the evaluation of the burners 3 and 7 or 4 and 6.
- the burner 5 is not evaluated by the burner 1 or with the value number zero.
- the values supplied to these three multipliers 30a, 30b, 30c as multipliers WZ1, WZ2, WZ3 are the constant values six, three and one, respectively.
- the output of the multiplier 30b provides the value three, which is applied to the summers ⁇ 3 (which is assigned to the third burner) and ⁇ 7 (which is assigned to the seventh burner).
- the output of the third multiplier 30c provides the value one, which is switched to the summer ⁇ 4 (which is assigned to the fourth burner) and to the summer ⁇ (which is assigned to the sixth burner).
- the evaluation of the other burners triggered by burner 2 should take place in an analogous manner, so that the value six is applied to the summers ⁇ l and ⁇ 3, the value three to the summers ierer4 and ⁇ 8 and to the summers ⁇ 5 and ⁇ 7 the value one.
- the summers ⁇ l, ⁇ 2, ⁇ 3, ⁇ 4, ⁇ 5, ⁇ 6, ⁇ 7 and ⁇ 8 determine the values six, six, six, nine, four, one, one, four and nine by adding them up. These values are applied to the corresponding signal postprocessing stages NV1, NV2, NV3, ... NV8.
- connection commands as commands ZI, Z2, Z3 ... Z8 for the burners in such a way that the burners in operation in the next operating state are one have uniform spatial distribution in the combustion chamber 15 in order to achieve a homogeneous temperature profile.
- the signal preprocessing stages W1 and W2 do not switch the outputs of the summers ⁇ l and ⁇ 2 to the processing unit 35, but e.g. the constant value thousand; the
- Outputs of the remaining summers ⁇ 3, ⁇ 4, ⁇ 5, ... ⁇ 8 are applied unchanged to the processing unit 35 by the subsequent signal postprocessing stages NV3, NV4, NV5, ... NV8.
- the processing unit 35 has eight input signals available to determine the burners to be switched on in the next step.
- the processing unit 35 can now determine the burners to be connected in the next step by by determining the minimum value (s) of its input values and in the next step switching on the burners belonging to these minimum values; in the following example this would mean that burners 5 and 6 are switched on in the next step. When burners 5 and 6 are switched on, burners 1, 2, 5 and 6 are in operation.
- the principle of the evaluation shown in FIG. 1 can easily be generalized: one chooses a certain burner as the reference burner and defines a first, a second and a third pair of neighboring burners for this.
- the first pair of neighboring burners defined in this way is the pair of burners formed by burners 2 and 4
- the second pair of burners is the pair of burners formed by burners 5 and 1
- the third pair of neighboring burners is the pair of burners formed by burners 6 and 8.
- a control system 1 is shown schematically in FIG. 2, wherein an actuation logic module 5 of the control system 1 can correspond to the computing unit 20 from FIG.
- ZI, Z2, Z3, ... Z8 determined by means of which in a next step certain components of the technical system are to be switched on and / or off.
- the actuation logic module 5 comprises a command logic module 10 and signal preprocessing stages W1, W2, W3, ... W8.
- the function of the actuation logic module 5 can be found in the description of FIG. 1 (see computing unit 20 there).
- the control system 1 further comprises a pre-selection logic module 15 for generating initialization values II, 12, 13, ... 18.
- the initialization values act on summers within the command logic module 10, by means of which the value numbers of each component are added.
- the initialization values II, 12, 13,... 18 can consequently act on the summed value number of one or more components of the technical system and thereby influence the determination of the commands ZI, 2, Z3,... Z8. This makes it possible, in particular, to generate one or more unambiguous commands ZI, Z2, Z3,... Z8 on the basis of an operating state of the components from which there are several equivalent alternatives to achieve a desired operating state.
- command input 20 of the preselection logic module 15 By means of a command input 20 of the preselection logic module 15, certain components of the technical system can be addressed manually and respectively assigned initialization values II, 12, 13, ... 18 can be set manually. This can be implemented, for example, by specifying a fixed constant value as command input 20, which is used as the initialization value is added to the total value of the addressed component.
- Such operating criteria B1, B2, B3, ... B8 can include information about the operating hours of the components that have already been performed, so that the initialization values II, 12, 13, ... 18 of the relevant components depend on these operating criteria B1, B2, B3,. ..B8 can be determined. For example, a component is assigned a high initialization value if the corresponding operating criterion has a high value.
- the operating criteria logic module 25 further includes inputs for detecting reset commands 30 and ready signals 35.
- the operating criteria B1, B2, B3,... B8 can be influenced by means of the reset commands 30.
- an operating hours counter of one or more components is manually reset and the corresponding operating criterion is also reset.
- the operating criteria B1, B2, B3, ... B8 can also include information about the availability of the components.
- ready signals 35 are evaluated, which provide information about whether one or more components are ready for operation. For example, the non-availability of a component is reported by means of the ready signals 35.
- the operating criteria logic module 25 thereupon sets the operating criterion assigned to this component to a corresponding value, so that the subsequent pre-selection logic module 15 can use this information to make a meaningful determination of the initialization values II, 12, 13, ... 18.
- a switching logic 40 of the control system 1 is used to determine switch-on commands 50 and switch-off commands 55 for system components in order to react to changed operating conditions of the technical system, which are specified, for example, as a new performance specification.
- An operating condition is set as target value 45 on the
- Switching logic 40 switched. Furthermore, the switching logic 40 receives operating state values S1, S2, S3,... S8, which include information about the current operating state of the components.
- the operating state values include at least information about which components are currently in operation.
- the switching logic 40 can determine, on the basis of the knowledge of the operating state values S1, S2, S3,... S8, which switch-on commands 50 and / or switch-off commands 55 must be given in order to to achieve the new predetermined operating state in accordance with the target value specification 45.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03782265A EP1654601A1 (en) | 2003-08-13 | 2003-12-01 | Method and control system for operating a technical installation comprising several components, in particular a combustion installation for generating electric energy |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03018411A EP1510892A1 (en) | 2003-08-13 | 2003-08-13 | Process and control system for operating a technical plant comprising plural components, in particular a combustion plant for production of electrical energy |
PCT/EP2003/013515 WO2005024530A1 (en) | 2003-08-13 | 2003-12-01 | Method and control system for operating a technical installation comprising several components, in particular a combustion installation for generating electric energy |
EP03782265A EP1654601A1 (en) | 2003-08-13 | 2003-12-01 | Method and control system for operating a technical installation comprising several components, in particular a combustion installation for generating electric energy |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1654601A1 true EP1654601A1 (en) | 2006-05-10 |
Family
ID=34089586
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03018411A Withdrawn EP1510892A1 (en) | 2003-08-13 | 2003-08-13 | Process and control system for operating a technical plant comprising plural components, in particular a combustion plant for production of electrical energy |
EP03782265A Ceased EP1654601A1 (en) | 2003-08-13 | 2003-12-01 | Method and control system for operating a technical installation comprising several components, in particular a combustion installation for generating electric energy |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03018411A Withdrawn EP1510892A1 (en) | 2003-08-13 | 2003-08-13 | Process and control system for operating a technical plant comprising plural components, in particular a combustion plant for production of electrical energy |
Country Status (4)
Country | Link |
---|---|
US (1) | US7853434B2 (en) |
EP (2) | EP1510892A1 (en) |
AU (1) | AU2003289926A1 (en) |
WO (1) | WO2005024530A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103823059B (en) * | 2012-11-19 | 2017-02-08 | 南京路始生物科技有限公司 | Saliva direct detection device |
US10493223B2 (en) * | 2013-06-19 | 2019-12-03 | Koninklijke Philips N.V. | Determining of subject zero flow using cluster analysis |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61285314A (en) * | 1985-06-11 | 1986-12-16 | Mitsubishi Heavy Ind Ltd | Controlling device for used number of burners |
DE19744230B4 (en) * | 1997-10-07 | 2007-10-25 | Robert Bosch Gmbh | Control units for a system and method for operating a control unit |
EP1217300A1 (en) | 2000-12-22 | 2002-06-26 | Siemens Aktiengesellschaft | Process and apparatus for operating a technical system comprising plural components, in particular a combustion system of a power plant |
-
2003
- 2003-08-13 EP EP03018411A patent/EP1510892A1/en not_active Withdrawn
- 2003-12-01 WO PCT/EP2003/013515 patent/WO2005024530A1/en active Application Filing
- 2003-12-01 AU AU2003289926A patent/AU2003289926A1/en not_active Abandoned
- 2003-12-01 EP EP03782265A patent/EP1654601A1/en not_active Ceased
- 2003-12-01 US US10/568,339 patent/US7853434B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2005024530A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2005024530A1 (en) | 2005-03-17 |
EP1510892A1 (en) | 2005-03-02 |
AU2003289926A1 (en) | 2005-03-29 |
US7853434B2 (en) | 2010-12-14 |
US20090030653A1 (en) | 2009-01-29 |
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