CN113587073B - Intelligent power plant control system and method - Google Patents
Intelligent power plant control system and method Download PDFInfo
- Publication number
- CN113587073B CN113587073B CN202111139179.5A CN202111139179A CN113587073B CN 113587073 B CN113587073 B CN 113587073B CN 202111139179 A CN202111139179 A CN 202111139179A CN 113587073 B CN113587073 B CN 113587073B
- Authority
- CN
- China
- Prior art keywords
- information
- transmitter
- time point
- message
- current time
- 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.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
- F22B35/18—Applications of computers to steam boiler control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/38—Determining or indicating operating conditions in steam boilers, e.g. monitoring direction or rate of water flow through water tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
- F22B37/47—Applications, arrangements, or dispositions of alarm or automatic safety devices responsive to abnormal temperature, e.g. actuated by fusible plugs
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
An intelligent power plant control system and method includes: the system comprises a temperature transmitter group arranged on a hearth heating surface distribution area of the power plant boiler, a temperature transmitter V arranged at an outlet of a boiler air preheater of the power plant boiler, a pressure transmitter arranged at an inlet of the boiler air preheater of the power plant boiler, a mobile communication module, a controller and a control terminal; the temperature transmitter group, the temperature transmitter fifth, the pressure transmitter and the mobile communication module are electrically connected with the controller; the defects that in the prior art, a unified management and control facility is not centralized for the temperature of a hearth heating surface distribution area of a power plant boiler, the outlet flue gas temperature of an air preheater and the inlet air pressure of the air preheater, and a mobile communication network is blocked when information is transmitted frequently by transmitter information for the management and control of the power plant boiler are overcome.
Description
Technical Field
The invention relates to the technical field of power plant control, in particular to an intelligent power plant control system and method.
Background
A power plant is generally a thermal power plant, and thermal power generation is power generation using thermal energy obtained by burning fuel (coal, petroleum and products thereof, natural gas, and the like). There are two main forms of thermal power generation: the high-temperature and high-pressure steam generated by the boiler is used for driving a steam turbine to rotate to drive a generator to generate electricity, and the generator is called a steam turbine generator unit; the fuel enters the gas turbine to directly convert the heat energy into mechanical energy to drive the generator to generate electricity, and the generator is called a gas turbine generator set. A thermal power plant is generally a power plant mainly including a turbo generator set. The thermal power plant mainly comprises four key parts, namely a boiler, a steam turbine, a condenser and a generator. The fuel burning converts chemical energy into heat energy to heat water in the boiler into steam, then the steam heat energy pushes a steam turbine to do work, the heat energy is converted into mechanical energy, and then the mechanical energy is converted into electric energy through a generator, so that the whole power generation process is completed.
At present, no centralized and unified control facility exists for the distribution areas of the heating surfaces of the hearth of the power plant boiler, namely the temperatures of a vertical water-cooled wall, a separating screen type superheater, a final superheater and a final reheater, the temperature of flue gas at the outlet of an air preheater and the air pressure at the inlet of the air preheater.
If the distribution areas of the heating surfaces of the furnace of the power plant boiler, namely the temperatures of the vertical water-cooled wall, the partition panel superheater, the final superheater and the final reheater, as well as the outlet flue gas temperature of the air preheater and the inlet wind pressure of the air preheater, are to be centrally and uniformly controlled, correspondingly collected transmitter information is to be transmitted to a control terminal of the power plant in a preset updating period, the control terminal is used for executing the control of the distribution areas of the heating surfaces of the furnace of the power plant boiler, namely the temperatures of the vertical water-cooled wall, the partition panel superheater, the final superheater and the final reheater, the outlet flue gas temperature of the air preheater and the inlet wind pressure of the air preheater according to the transmitter information, and prompting is also executed when transmitter information with errors occurs.
However, since the period of sampling and transmitting the information of each transmitter is short, the amount of information to be transmitted via the mobile communication network is always maintained at a high level, and the amount of information transmitted is not small, which often causes the mobile communication network to block the information transmission.
During practical application, transmitter information collected by a transmitter in a power plant is changed slowly along with time length change, and only in an extreme state of severe shaking of the external ground, the state of large fluctuation amplitude of the transmitter information in a general state is rare; in addition, most of the transmitter information is located in the set index interval, and the transmitter information beyond the set index interval is rare; besides a small amount of information is transmitted in a large fluctuation range and a small time consumption state when the information is wrong, the transmission of the transmitter information in other states can permit correspondingly higher time consumption, and therefore, adverse effects on the management and control of the transmitter information of the power plant are avoided.
Disclosure of Invention
In order to solve the problems, the invention provides an intelligent power plant control system and method, which effectively overcome the defects that in the prior art, no centralized management and control facility exists for the temperature of a hearth heating surface distribution area of a power plant boiler, the outlet flue gas temperature of an air preheater and the inlet air pressure of the air preheater, and transmitter information for managing and controlling the power plant boiler often causes a mobile communication network to be blocked during information transmission.
To overcome the defects in the prior art, the invention provides a solution for an intelligent power plant control system and method, which comprises the following specific steps:
an intelligent power plant control system, comprising:
the system comprises a temperature transmitter group arranged on a hearth heating surface distribution area of the power plant boiler, a temperature transmitter V arranged at an outlet of a boiler air preheater of the power plant boiler, a pressure transmitter arranged at an inlet of the boiler air preheater of the power plant boiler, a mobile communication module, a controller and a control terminal;
the temperature transmitter group, the temperature transmitter fifth, the pressure transmitter and the mobile communication module are electrically connected with the controller;
the controller is in communication connection with the management and control terminal through the mobile communication module;
the unit running on the controller comprises:
the transmitter information acquisition unit is used for acquiring transmitter information of each collection time point;
the error information determining unit is used for determining whether the transmitter information of the current time point is error information or not according to a preset state;
an information message constructing unit, configured to, if the transmitter information of the current time point is error information, combine information before the transmitter information of the current time point into a previous information message, construct a current information message according to the transmitter information of the current time point, and transmit the current information message to a control terminal; and gradually increasing the information quantity of the transmitter information in the information message during the packaging and transmitting to the control terminal aiming at the transmitter information obtained from the later time point of the current time point corresponding to the error information until the information quantity of the transmitter information in the information message reaches the highest critical quantity; and if the transmitter information at the later time point is not error information, continuously acquiring the subsequent transmitter information, and constructing a new information message to transmit to the control terminal when the total information quantity of the acquired transmitter information conforms to a preset state.
During the period that the information message constructing unit transmits the information message, each information message can be provided with a defined critical amount of integral transmission and local transmission, and when the total information amount of the transmitter information in the information message is higher than the defined critical amount, the transmitter information in the information message is locally transmitted; and when the total information amount of the transmitter information in the information message is not higher than the defined critical amount, performing integral transmission on the transmitter information in the information message.
Furthermore, the temperature transmitter group comprises a first temperature transmitter, a second temperature transmitter, a third temperature transmitter and a fourth temperature transmitter which are respectively arranged on a vertical water-cooled wall, a separating screen type superheater, a final superheater and a final reheater of the power plant boiler.
A method of a smart power plant control system, comprising:
step 1, a controller obtains transmitter information of each collection time point;
step 2, determining whether the transmitter information of the current time point is error information or not according to a preset state;
the step 2 specifically comprises: when the determination of the transmitter information at the current time point is not error information, determining whether the information value of the transmitter information at the current time point and the fluctuation amplitude of the transmitter information collected at the previous time point are within eight percent or not; if the fluctuation amplitude between the information value of the transmitter information at the current time point and the transmitter information collected at the previous time point is within eight percent, determining that the information value of the transmitter information at the current time point is correct information; if the fluctuation amplitude between the information value of the transmitter information at the current time point and the transmitter information collected at the previous time point is not within eight percent, determining that the information value of the transmitter information at the current time point is error information;
or, the highest permitted quantity and the lowest permitted quantity of the transmitter information are preset, and if one transmitter information is higher than the highest permitted quantity or lower than the lowest permitted quantity, the transmitter information at the current time point is confirmed to be error information.
Step 3, if the transmitter information of the current time point is error information, combining the information before the transmitter information of the current time point into a previous information message, constructing the current information message according to the transmitter information of the current time point, and transmitting the current information message to a control terminal;
step 4, gradually increasing the information quantity of the transmitter information in the information message during packaging and transmitting the transmitter information to the control terminal aiming at the transmitter information obtained from the later time point of the current time point corresponding to the error information until the information quantity of the transmitter information in the information message reaches the highest critical quantity;
step 5, after the information message transmitted by the backward time point encapsulation of the current time point corresponding to the error information in the step 4 reaches the preset maximum critical amount, when the transmitter information of the next time point is obtained, whether the transmitter information of the next time point is the error information is determined according to the preset state is restored;
step 6, when the collected transmitter information is error information, independently packaging the error information into an information message to be transmitted, and then continuously increasing the information quantity of the transmitter information in the information message step by step until the information quantity of the transmitter information in the information message reaches the highest critical quantity;
and 7, in the step 5, if the transmitter information at the later time point is not error information, continuously acquiring the subsequent transmitter information, and constructing a new information message and transmitting the new information message to the control terminal when the total information quantity of the acquired transmitter information conforms to a preset state.
Further, after step 7 is executed, the method further includes:
and 8, if the transmitter information of the current time point is judged to be not error information in the step 2, determining whether the total information amount of the transmitter information obtained before the transmitter information of the current time point reaches a highest threshold, if the total information amount of the transmitter information obtained before the transmitter information of the current time point does not reach the highest threshold, continuously obtaining the transmitter information until the total information amount of the obtained transmitter information reaches the highest threshold, and constructing a current information message to be transmitted to the control terminal.
Furthermore, during the period that the transmitter transmits the information messages to the control terminal, each information message can be provided with a defined critical amount of overall transmission and local transmission, and when the total information amount of the transmitter information in the information messages is higher than the defined critical amount, the transmitter information in the information messages is locally transmitted; when the total information amount of the transmitter information in the information message is not higher than the defined critical amount, performing integral transmission on the transmitter information in the information message; local transfers of transmitter information within the information message are performed to transfer only half or thirty percent of the transmitter information and the corresponding collection times are registered within the message header.
The invention has the beneficial effects that:
the invention can transmit the error information to the control terminal as the independent information message, and the yielded error information can be transmitted to the control terminal in real time, thereby preventing the unfavorable control of the transmitter information of the power plant. The defects that in the prior art, a unified management and control facility is not centralized for the temperature of a hearth heating surface distribution area of a power plant boiler, the outlet flue gas temperature of an air preheater and the inlet air pressure of the air preheater, and a mobile communication network is blocked when information is transmitted frequently by transmitter information for the management and control of the power plant boiler are overcome.
Drawings
FIG. 1 is a partial flow diagram of a method of an intelligent power plant control system of the present invention.
FIG. 2 is a partial block diagram of the units of the intelligent power plant control system of the present invention operating on the controllers.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-2, the smart power plant control system includes:
the system comprises a temperature transmitter group arranged on a hearth heating surface distribution area of the power plant boiler, a temperature transmitter V arranged at an outlet of a boiler air preheater of the power plant boiler, a pressure transmitter arranged at an inlet of the boiler air preheater of the power plant boiler, a mobile communication module, a controller and a control terminal;
the temperature transmitter group, the temperature transmitter fifth, the pressure transmitter and the mobile communication module are electrically connected with the controller; and the temperature transmitter is used for sampling the outlet flue gas temperature of the air preheater, and the pressure transmitter is used for sampling the inlet air pressure of the air preheater.
The controller is in communication connection with the management and control terminal through the mobile communication module;
the unit running on the controller comprises:
the transmitter information acquisition unit is used for acquiring transmitter information of each collection time point;
further, during the period that the controller transmits the transmitter information to the control terminal, the transmitter information acquired by the transmitter at each time is acquired through the transmitter information acquiring unit.
The error information determining unit is used for determining whether the transmitter information of the current time point is error information or not according to a preset state;
further, under the condition that no error information occurs, determining the transmitter information at each time to identify whether the transmitter information at the current time is the error information; during the period of identifying the transmitter information at the current time point, the determination can be executed according to the preset condition; because the transmitter information collected by the transmitter is generally information values of corresponding types, just as the temperatures on the vertical water-cooled wall, the partition-screen superheater, the final superheater and the final reheater of the power plant boiler, which are respectively sampled by the temperature transmitter I, the temperature transmitter II, the temperature transmitter III and the temperature transmitter IV, the temperature of the flue gas at the outlet of the air preheater, which is sampled by the temperature transmitter V, and the air pressure at the inlet of the air preheater, which is sampled by the pressure transmitter; therefore, the step 2 specifically includes: the correct interval of the fluctuation range of various transmitters can be preset; when the transmitter information at the current time point is determined to be error information or not, the fluctuation amplitude between the transmitter information at the current time point and the transmitter information collected at the previous time point can be compared with the correct information value interval of the preset fluctuation amplitude, and whether the fluctuation amplitude between the information value of the transmitter information at the current time point and the fluctuation amplitude of the transmitter information collected at the previous time point is within eight percent or not is determined; if the fluctuation amplitude between the information value of the transmitter information at the current time point and the transmitter information collected at the previous time point is within eight percent, determining that the information value of the transmitter information at the current time point is correct information; if the fluctuation amplitude between the information value of the transmitter information at the current time point and the transmitter information collected at the previous time point is not within eight percent, determining that the information value of the transmitter information at the current time point is error information; or, the highest permitted quantity and the lowest permitted quantity of the transmitter information are preset, if one transmitter information is higher than the highest permitted quantity or lower than the lowest permitted quantity, the transmitter information at the current time point is confirmed to be attributed to error information regardless of the fluctuation amplitude condition of the transmitter information collected at the previous time point.
An information message constructing unit, configured to, if the transmitter information of the current time point is error information, combine information before the transmitter information of the current time point into a previous information message, construct a current information message according to the transmitter information of the current time point, and transmit the current information message to a control terminal; and gradually increasing the information quantity of the transmitter information in the information message during the packaging and transmitting to the control terminal aiming at the transmitter information obtained from the later time point of the current time point corresponding to the error information until the information quantity of the transmitter information in the information message reaches the highest critical quantity; the transmitter information obtained at the later time point of the current time point corresponding to the error information can be transmitted to the control terminal more efficiently for correct information, and in addition, a large amount of software and hardware used for loss communication is also reduced. Aiming at each packaging and transmitting period of the later time point of the current time point, the total information quantity of the transmitter information in each information message is gradually increased along with the increase of the packaging and transmitting frequency until the preset highest critical quantity is reached; and if the transmitter information at the later time point is not error information, continuously acquiring the subsequent transmitter information, and constructing a new information message to transmit to the control terminal when the total information quantity of the acquired transmitter information conforms to a preset state.
During the period that the information message constructing unit transmits the information message, each information message can be provided with a defined critical amount of integral transmission and local transmission, and when the total information amount of the transmitter information in the information message is higher than the defined critical amount, the transmitter information in the information message is locally transmitted; and when the total information amount of the transmitter information in the information message is not higher than the defined critical amount, performing integral transmission on the transmitter information in the information message. The controller can be an ARM processor, the mobile communication module can be a GPRS module, a 3G module or a 4G module, the control terminal can be a PC (personal computer) machine located in a mobile communication network, and the mobile communication network can be a GPRS network, a 3G network or a 4G network.
Furthermore, the temperature transmitter group comprises a first temperature transmitter, a second temperature transmitter, a third temperature transmitter and a fourth temperature transmitter which are respectively arranged on a vertical water-cooled wall, a separating screen type superheater, a final superheater and a final reheater of the power plant boiler. The first temperature transmitter, the second temperature transmitter, the third temperature transmitter and the fourth temperature transmitter are respectively used for sampling the temperature on a vertical water-cooled wall, a separating screen type superheater, a final superheater and a final reheater of the power plant boiler.
A method of a smart power plant control system, comprising:
step 1, a controller obtains transmitter information of each collection time point; the transmitter information includes: the temperature of a vertical water-cooled wall, a separating screen type superheater, a final superheater and a final reheater of a power plant boiler, the temperature of the flue gas at the outlet of an air preheater and the air pressure at the inlet of the air preheater.
The method of the intelligent power plant control system is applied to the transmission of transmitter information in a power plant; the temperature transmitter group, the pressure transmitter group and the mobile communication module are electrically connected with the controller; and the temperature transmitter is used for sampling the outlet flue gas temperature of the air preheater, and the pressure transmitter is used for sampling the inlet air pressure of the air preheater. The controller is in communication connection with the control terminal through the mobile communication module. The controller can be an ARM processor, the mobile communication module can be a GPRS module, a 3G module or a 4G module, the control terminal can be a PC (personal computer) machine located in a mobile communication network, and the mobile communication network can be a GPRS network, a 3G network or a 4G network. The temperature transmitter group comprises a first temperature transmitter, a second temperature transmitter, a third temperature transmitter and a fourth temperature transmitter which are respectively arranged on a vertical water-cooled wall, a separating screen type superheater, a final superheater and a final reheater of the power plant boiler. The first temperature transmitter, the second temperature transmitter, the third temperature transmitter and the fourth temperature transmitter are respectively used for sampling the temperature on a vertical water-cooled wall, a separating screen type superheater, a final superheater and a final reheater of the power plant boiler; monitoring and acquiring transmitter information transmitted by a transmitter by a preset updating period of a controller, transmitting the transmitter information to a control terminal of a power plant, maintaining and controlling the temperature of a hearth heating surface distribution area of a boiler of the power plant, the outlet flue gas temperature of an air preheater and the inlet air pressure of the air preheater by the control terminal according to the transmitter information, and performing prompt when faulty transmitter information occurs; various transmitters in the power plant can sample the transmitter information of corresponding types according to a preset period to transmit the information to the controller to be collected, the collection time point is the sampling time point, if the information is collected every 15 seconds, whether the collected transmitter information is error information or not is determined, and the transmitter information collected by the controller is determined.
Step 2, determining whether the transmitter information of the current time point is error information or not according to a preset state;
further, under the condition that no error information occurs, determining is carried out aiming at each time of transmitter information to identify whether the transmitter information at the current time is the error information or not; during the period of identifying the transmitter information at the current time point, the determination can be executed according to the preset condition; because the transmitter information collected by the transmitter is generally information values of corresponding types, just as the temperatures on the vertical water-cooled wall, the partition-screen superheater, the final superheater and the final reheater of the power plant boiler, which are respectively sampled by the temperature transmitter I, the temperature transmitter II, the temperature transmitter III and the temperature transmitter IV, the temperature of the flue gas at the outlet of the air preheater, which is sampled by the temperature transmitter V, and the air pressure at the inlet of the air preheater, which is sampled by the pressure transmitter; therefore, the step 2 specifically includes: the correct interval of the fluctuation range of various transmitters can be preset; when the transmitter information at the current time point is determined to be error information or not, the fluctuation amplitude between the transmitter information at the current time point and the transmitter information collected at the previous time point can be compared with the correct information value interval of the preset fluctuation amplitude, and whether the fluctuation amplitude between the information value of the transmitter information at the current time point and the fluctuation amplitude of the transmitter information collected at the previous time point is within eight percent or not is determined; if the fluctuation amplitude between the information value of the transmitter information at the current time point and the transmitter information collected at the previous time point is within eight percent, determining that the information value of the transmitter information at the current time point is correct information; if the fluctuation amplitude between the information value of the transmitter information at the current time point and the transmitter information collected at the previous time point is not within eight percent, determining that the information value of the transmitter information at the current time point is error information;
or, the highest permitted quantity and the lowest permitted quantity of the transmitter information are preset, if one transmitter information is higher than the highest permitted quantity or lower than the lowest permitted quantity, the transmitter information at the current time point is confirmed to be attributed to error information regardless of the fluctuation amplitude condition of the transmitter information collected at the previous time point.
Step 3, if the transmitter information of the current time point is error information, combining the information before the transmitter information of the current time point into a previous information message, constructing the current information message according to the transmitter information of the current time point, and transmitting the current information message to a control terminal;
further, when the transmitter information at the current time point is error information, that is, the fluctuation range of the transmitter information at the current time point and the transmitter information collected at the previous time point is not within eight percent, or the transmitter information at the current time point is not in an interval where the highest allowable amount meets the lowest allowable amount constraint, the information which is not transmitted before the transmitter information at the current time point is combined into a previous information message; in the invention, during the period that the transmitter transmits the transmitter information to the control terminal, the transmitter information is not transmitted to the control terminal once after being collected, but the transmitter information with a certain information quantity is accumulated aiming at correct information and then is packaged into an information message, and the information message can have the transmitter information collected for a plurality of times and is transmitted to the control terminal together, so that the correct information which is not transmitted before is often possessed when error information occurs, and then the correct information is packaged into a previous information message aiming at the correct information; and to the error message of current time point, just encapsulate into an information message alone, directly transmit to the management and control terminal, give out error message and can immediately transmit to the management and control terminal to this has prevented to constitute unfavorable to the transmitter information management and control of power plant.
And step 4, gradually increasing the information quantity of the transmitter information in the information message during the packaging and transmitting to the control terminal aiming at the transmitter information obtained at the later time point of the current time point corresponding to the error information until the information quantity of the transmitter information in the information message reaches the highest critical quantity, and giving way the transmitter information obtained at the later time point of the current time point corresponding to the error information, so that the transmitter information can be more efficiently transmitted to the control terminal for correct information, and in addition, a large amount of software and hardware used for loss communication is also reduced. Aiming at each packaging and transmitting period of the later time point of the current time point, the total information quantity of the transmitter information in each information message is gradually increased along with the increase of the packaging and transmitting frequency until the preset highest critical quantity is reached.
The following description is performed for a mode in which a package communicates transmitter information with an example:
if the corresponding collection times of the current time point of the error information is determined to be the Xth time, the Xth transmitter information is independently encapsulated into an information message and can be set into the Yth information message;
packaging the transmitter information collected from the X +1 time to the X +5 time into a Y +1 information message, packaging the transmitter information collected from the X +6 time to the X +11 time into a Y +2 information message, and executing the steps until the information amount of the information message transmitted by packaging reaches the preset maximum critical amount; this increases the information content of the information messages until a predetermined maximum threshold number of information messages is reached, just as it is possible to preset an information message having up to 45 transmitter information collections.
In addition, during the period that the information amount of the transmitter information in the information message is gradually increased at the later time point of the current time point corresponding to the error information, each time of information message transmission is accompanied by an increasingly high pause period, and the previous information message which is not transmitted before can be uploaded by using the pause period.
Step 5, after the information message transmitted by the backward time point encapsulation of the current time point corresponding to the error information in the step 4 reaches the preset maximum critical amount, when the transmitter information of the next time point is obtained, whether the transmitter information of the next time point is the error information is determined according to the preset state is restored;
step 6, when the collected transmitter information is error information, independently packaging the error information into an information message to be transmitted, and then continuously increasing the information quantity of the transmitter information in the information message step by step until the information quantity of the transmitter information in the information message reaches the highest critical quantity;
in the former example, in step 3, if the transmitter information collected for the Xth time is error information, the transmitter information collected for the Xth time is transmitted as an information message alone, then the transmitter information collected for the X +1 to X +5 times is packaged into the Y +1 information message, the transmitter information collected for the X +6 to X +11 times is packaged into the Y +2 information message in step 4, and the steps are carried out until the transmitter information collected for the X + Z-45 to X + Z-1 times is packaged and transmitted, and then the highest critical number of the information message specified in advance is reached; at this time, step 5 is executed, whether the transmitter information collected for the X + Z times is error information or not is determined, if the transmitter information collected for the X + Z times is attributed to the error information, the error information is independently encapsulated into an information message in step 6, the transmitter information collected for the X + Z +1 times to the X + Z +5 times is encapsulated into an information message, and the transmitter information collected for the X + Z +6 times to the X + Z +11 times is encapsulated into an information message, so that the steps are executed until the information amount of the information message transmitted by encapsulation reaches the preset maximum critical amount, just as the transmitter information collected for 45 times can be preset in advance; after step 6 is finished, go to step 5 to execute.
And 7, in the step 5, if the transmitter information at the later time point is not error information, continuously acquiring the subsequent transmitter information, and constructing a new information message and transmitting the new information message to the control terminal when the total information quantity of the acquired transmitter information conforms to a preset state.
Further, after step 7 is executed, go to step 2 to execute.
According to the method for the intelligent power plant control system, error information can be taken as a unique information message to be transmitted to the control terminal, and the error information can be transmitted to the control terminal in real time, so that the disadvantage of the control of the transmitter information of the power plant is prevented.
Further, after step 7 is executed, the method further includes:
and 8, if the transmitter information of the current time point is judged to be not error information in the step 2, determining whether the total information amount of the transmitter information obtained before the transmitter information of the current time point reaches a highest threshold, if the total information amount of the transmitter information obtained before the transmitter information of the current time point does not reach the highest threshold, continuously obtaining the transmitter information until the total information amount of the obtained transmitter information reaches the highest threshold, and constructing a current information message to be transmitted to the control terminal.
When the transmitter information of the current time point is not error information, namely the fluctuation range of the transmitter information of the current time point and the transmitter information collected at the previous time point is within eight percent, or the transmitter information of the current time point is in an interval constrained by the highest permitted amount and the lowest permitted amount, whether the total information amount of the transmitter information obtained before the transmitter information of the current time point reaches the highest threshold is determined, if the total information amount of the transmitter information obtained before the transmitter information of the current time point does not reach the highest threshold, the transmitter information is continuously obtained until the total information amount of the obtained transmitter information reaches the highest threshold, and a current information message is constructed to be transmitted to the control terminal. In the invention, during the period that the transmitter transmits the transmitter information to the control terminal, the transmitter information is transmitted to the control terminal once instead of being collected once, but for correct information, the transmitter information of a certain information amount is accumulated and then packaged into an information message (the information message can have the transmitter information collected for a plurality of times), and the information message is transmitted to the control terminal together.
According to the invention, error information is independently packaged into an information message and is directly transmitted to the control terminal, so that the error information can be immediately transmitted to the control terminal, thereby preventing the unfavorable control of the transmitter information of the power plant, and the transmitter information obtained from the later time point of the time point corresponding to the error information is packaged and transmitted to the control terminal, so that the information quantity of the transmitter information in the information message is gradually increased until the information quantity of the transmitter information in the information message reaches the highest critical quantity, and the transmitter information obtained from the later time point of the time point corresponding to the error information is yielded, therefore, the correct information can be more efficiently transmitted to the control terminal, and in addition, the error information is oriented, and the use rate of communication software and hardware cannot be greatly occupied; adding the total information quantity of the transmitter information in each information message with a highest threshold, wherein the highest threshold is that the collection times of subsequent transmitter information accompanied by error information are gradually increased until the preset highest critical quantity is reached; and when the collected transmitter information is error information, setting the highest threshold of the total information quantity of the information message as the initial quantity again.
According to the method for the intelligent power plant control system, error information can be taken as a unique information message to be transmitted to the control terminal, and the error information can be transmitted to the control terminal in real time, so that the disadvantage of the control of the transmitter information of the power plant is prevented.
Furthermore, during the period that the transmitter transmits the information messages to the control terminal, each information message can be provided with a defined critical amount of overall transmission and local transmission, and when the total information amount of the transmitter information in the information messages is higher than the defined critical amount, the transmitter information in the information messages is locally transmitted; and when the total information amount of the transmitter information in the information message is not higher than the defined critical amount, performing integral transmission on the transmitter information in the information message. The information quantity of the transmitter information collected by the transmitter at each time is set, so that the information quantity in the information message can be described by the collection times of the transmitter information; further, it is possible to set the information amount defining the critical amount of the entire transfer and the partial transfer to be the transmitter information collected 7 times; because the information message has effective information and a message header, the effective information is transmitter information, and the message header is part of key information in the information message, such as an identifier of the transmitter, an IP address of the control terminal and the like; if the amount of information in the information message is above the defined threshold amount, a partial transfer of transmitter information in the information message is performed, as if only half or thirty percent of the transmitter information is transferred, and a corresponding number of collections is registered in the header, as if the information message had 46 transmitter information samples, whereas a partial transfer only transferred 23, and the information message also has 46 transmitter information registered in the header. If the amount of information in the information message is not above the defined threshold amount, then a full transfer of information in the information message is performed.
The present invention has been described above in an illustrative manner by way of embodiments, and it will be apparent to those skilled in the art that the present disclosure is not limited to the embodiments described above, and various changes, modifications and substitutions can be made without departing from the scope of the present invention.
Claims (7)
1. An intelligent power plant control system, comprising:
the system comprises a temperature transmitter group arranged on a hearth heating surface distribution area of the power plant boiler, a temperature transmitter V arranged at an outlet of a boiler air preheater of the power plant boiler, a pressure transmitter arranged at an inlet of the boiler air preheater of the power plant boiler, a mobile communication module, a controller and a control terminal;
the temperature transmitter group, the temperature transmitter fifth, the pressure transmitter and the mobile communication module are electrically connected with the controller;
the controller is in communication connection with the management and control terminal through the mobile communication module;
the unit running on the controller comprises:
the transmitter information acquisition unit is used for acquiring transmitter information of each collection time point;
the error information determining unit is used for determining whether the transmitter information at the current time is error information or not according to a preset state;
the information message constructing unit is used for combining the information before the transmitter information of the current time point into a previous information message if the transmitter information of the current time point is error information, constructing the current information message according to the transmitter information of the current time point and transmitting the current information message to the control terminal; and gradually increasing the information quantity of the transmitter information in the information message during the packaging and transmitting to the control terminal aiming at the transmitter information obtained from the later time point of the current time point corresponding to the error information until the information quantity of the transmitter information in the information message reaches the highest critical quantity; and if the transmitter information at the later time point is not error information, continuously acquiring the subsequent transmitter information, and constructing a new information message to transmit to the control terminal when the total information quantity of the acquired transmitter information conforms to a preset state.
2. The intelligent power plant control system of claim 1, wherein during the time that the information message construction unit transmits the information message, each information message can be provided with a defined critical amount of overall transmission and local transmission, and when the total amount of information of transmitter information in the information message exceeds the defined critical amount, local transmission is performed on the transmitter information in the information message; when the total amount of the transmitter information in the information message is not higher than a defined critical amount, the transmitter information in the information message is transmitted in a whole manner.
3. The intelligent power plant control system of claim 1, wherein the set of temperature transmitters comprises a first temperature transmitter, a second temperature transmitter, a third temperature transmitter and a fourth temperature transmitter respectively disposed on a vertical water wall, a partition-screen superheater, a final superheater and a final reheater of the power plant boiler.
4. A method of a smart power plant control system, comprising:
step 1, a controller obtains transmitter information of each collection time point;
step 2, determining whether the transmitter information at the current time is error information or not according to a preset state;
step 3, if the transmitter information of the current time point is error information, combining the information before the transmitter information of the current time point into a previous information message, constructing the current information message according to the transmitter information of the current time point, and transmitting the current information message to the control terminal;
step 4, gradually increasing the information quantity of the transmitter information in the information message during packaging and transmitting the transmitter information to the control terminal aiming at the transmitter information obtained from the later time point of the current time point corresponding to the error information until the information quantity of the transmitter information in the information message reaches the highest critical quantity;
step 5, when the transmitter information at the next time point is obtained after the information message transmitted by packaging the later time point of the current time point corresponding to the error information in the step 4 reaches the preset maximum critical amount, whether the transmitter information at the next time point is the error information is determined according to the preset state is restored;
step 6, when the collected transmitter information is error information, independently packaging the error information into an information message to be transmitted, and then continuously increasing the information quantity of the transmitter information in the information message step by step until the information quantity of the transmitter information in the information message reaches the highest critical quantity;
and 7, in the step 5, if the transmitter information at the later time point is not error information, continuously acquiring the subsequent transmitter information, and constructing a new information message and transmitting the new information message to the control terminal when the total information quantity of the acquired transmitter information conforms to a preset state.
5. The method of the intelligent power plant control system of claim 4, wherein step 2 specifically comprises: when the determination of the transmitter information at the current time point is not error information, determining whether the information value of the transmitter information at the current time point and the fluctuation amplitude of the transmitter information collected at the previous time point are within eight percent or not; if the fluctuation amplitude between the information value of the transmitter information at the current time point and the transmitter information collected at the previous time point is within eight percent, determining that the information value of the transmitter information at the current time point is correct information; if the fluctuation amplitude between the information value of the transmitter information at the current time point and the transmitter information collected at the previous time point is not within eight percent, determining that the information value of the transmitter information at the current time point is error information;
or, the highest permitted quantity and the lowest permitted quantity of the transmitter information are preset, and if one transmitter information is higher than the highest permitted quantity or lower than the lowest permitted quantity, the transmitter information at the current time is confirmed to be error information.
6. The method of intelligent power plant control system of claim 4, further comprising, after step 7 is performed:
and 8, if the transmitter information at the current time point is judged not to be error information in the step 2, determining whether the total information amount of the transmitter information obtained before the transmitter information at the current time point reaches a highest threshold, if the total information amount of the transmitter information obtained before the transmitter information at the current time point does not reach the highest threshold, continuously obtaining the transmitter information until the total information amount of the obtained transmitter information reaches the highest threshold, and constructing a current information message to be transmitted to the control terminal.
7. The method of the intelligent power plant control system according to claim 4, wherein during the transmission of the information messages to the control terminal by the transmitters, each information message can be provided with a defined critical amount of overall transmission and local transmission, and when the total amount of information of the transmitter information in the information message is higher than the defined critical amount, the local transmission is performed on the transmitter information in the information message; when the total information amount of the transmitter information in the information message is not higher than the defined critical amount, the transmitter information in the information message is transmitted integrally; local transfers of transmitter information within the information message are performed to transfer only half or thirty percent of the transmitter information and the corresponding collection times are registered within the message header.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111139179.5A CN113587073B (en) | 2021-09-28 | 2021-09-28 | Intelligent power plant control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111139179.5A CN113587073B (en) | 2021-09-28 | 2021-09-28 | Intelligent power plant control system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113587073A CN113587073A (en) | 2021-11-02 |
| CN113587073B true CN113587073B (en) | 2021-12-21 |
Family
ID=78242424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111139179.5A Active CN113587073B (en) | 2021-09-28 | 2021-09-28 | Intelligent power plant control system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113587073B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790766B (en) * | 2021-11-15 | 2022-04-01 | 江苏未来智慧信息科技有限公司 | Intelligent detection system and method for power plant |
| CN114189052B (en) * | 2021-12-14 | 2022-09-13 | 江苏未来智慧信息科技有限公司 | Power plant state monitoring system and monitoring method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8185539B1 (en) * | 2008-08-12 | 2012-05-22 | Foneweb, Inc. | Web site or directory search using speech recognition of letters |
| CN103676663A (en) * | 2013-09-22 | 2014-03-26 | 国家电网公司 | A wind generating set combined simulation system communication interface realization method |
| CN104135439B (en) * | 2014-07-25 | 2017-05-31 | 西安空间无线电技术研究所 | A kind of ICMP error messages rapid generation |
| CN105652770A (en) * | 2016-02-29 | 2016-06-08 | 重庆重锅能源科技有限公司 | remote monitoring intelligent boiler system |
| CN110221937A (en) * | 2019-06-05 | 2019-09-10 | 河南卫华重型机械股份有限公司 | A kind of analytic method of communication between plates data |
| CN111127245A (en) * | 2019-11-14 | 2020-05-08 | 内蒙古大唐国际托克托发电有限责任公司 | Wisdom power plant wisdom management and control system |
| CN111147126B (en) * | 2019-12-26 | 2021-11-23 | 中国人民解放军空军勤务学院 | Beidou satellite short message communication data unpacking transmission method |
| CN111077868A (en) * | 2019-12-30 | 2020-04-28 | 国核电力规划设计研究院有限公司 | Smart power plant management and control system |
| CN112566282B (en) * | 2020-12-03 | 2023-08-29 | 京投(山东)网络科技有限公司 | Internet of things information transmission method and platform |
-
2021
- 2021-09-28 CN CN202111139179.5A patent/CN113587073B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113587073A (en) | 2021-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113587073B (en) | Intelligent power plant control system and method | |
| Troy et al. | Multi-mode operation of combined-cycle gas turbines with increasing wind penetration | |
| CN102493915B (en) | Fan utilizing method and fan utilizing system for wind power station | |
| CN111769553A (en) | Optimal operation method of gas-electricity interconnection system considering wind electricity uncertainty | |
| CN114189052B (en) | Power plant state monitoring system and monitoring method | |
| CN116128241A (en) | Intelligent power supply system | |
| CN201449552U (en) | Power plant agc control system | |
| CN109858125B (en) | Thermal power unit power supply coal consumption calculation method based on radial basis function neural network | |
| US11262713B2 (en) | Method for calculating control parameters of heating supply power of heating network | |
| CN102661974B (en) | Thermal-operating-parameters-based pulverized coal heat value on-line identification method | |
| CN104272546A (en) | Electric device, and method for controlling an electric energy generator | |
| CN113221358B (en) | Standby output optimization method of electric-gas coupling system based on reliability parameters | |
| CN210264931U (en) | Biogas generator set control system based on intelligent cloud | |
| CN114336962A (en) | Monitoring system and monitoring method for working condition of power plant | |
| CN103899483A (en) | State monitoring system of wind turbine generator | |
| CN114357671A (en) | Distribution network elastic lifting planning configuration method and system based on weak link identification | |
| CN202300549U (en) | Remote monitoring control system for digital electro-hydraulic control system (DEH) | |
| CN112666884B (en) | Boiler online monitoring device, method and medium based on Internet of things | |
| CN114845309B (en) | Intelligent communication distribution system based on big data | |
| CN114294637B (en) | Low-temperature economizer state monitoring system and method based on machine learning | |
| CN110766283B (en) | Power grid dispatching system and power grid dispatching method | |
| CN115618544A (en) | Comprehensive energy system reliability assessment method considering unreliable information system | |
| CN217685302U (en) | Automatic control system of heat source heating system | |
| CN102383873B (en) | Remote monitoring control system for digital electro-hydraulic control system (DEH) | |
| CN117072997A (en) | Flue gas total heat recovery system, heat supply system and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |