CN114637464B - Flexibly-controlled ten-clock staged timing and data storage method - Google Patents
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Abstract
The invention relates to a flexibly controlled ten-minute staged timing and data storage method, which is used for executing the following logic aiming at the storage of important measurement data of a thermal generator set: and (3) timing the change process of a certain parameter of the system from the starting time to the ending time in the ten-minute period time, and storing and outputting data of 6 time points of the starting time, the 2-minute time, the 4-minute time, the 6-minute time, the 8-minute time and the 10-minute time in ten-minute intervals. The invention solves the problem of system delay and hysteresis. The invention can provide an efficient and accurate storage method for important measurement data of the thermal generator set; the method is mainly used for storing important measurement data of the thermal generator set, is suitable for various DCS and PLC control systems on the market, can realize the functions of data measurement and storage through the current DCS and PLC control systems, and saves cost; the data output by the invention has important analysis, calculation and optimization basis for optimizing the coordinated control system of the unit.
Description
Technical Field
The invention relates to the technical field of thermal power generation, in particular to a flexibly controlled ten-minute staged timing and data storage method.
Background
At present, a reasonable and effective implementation method for the configuration of the existing DCS and PLC systems is not utilized in the storage method and application of important measurement data of the thermal generator set, the important set parameters of the thermal generator set cannot be timed and stored in a staged mode, and a practical and feasible comprehensive method for timing, storing and outputting required data is not available in the changing process of a certain parameter of the system from the starting moment to the ending moment within a set period time.
Disclosure of Invention
The invention aims to provide a flexibly controlled ten-minute staged timing and data storage method, which is applicable to various DCS and PLC control systems on the market in the face of storing important measurement data of a thermal generator set, is used for timing the changing process of a certain parameter of the system from the starting time to the ending time in a set period time (ten minutes in the moment), and stores and outputs data of 6 time points of the starting time, 2 minutes, 4 minutes, 6 minutes, 8 minutes and 10 minutes in ten-minute intervals. The 6 time point data has important analysis, calculation and optimization basis for the optimization of the coordination control system of the next period unit.
The invention provides a flexibly controlled ten-minute staged timing and data storage method, which is used for executing the following logic aiming at the storage of important measurement data of a thermal generator set:
Timing the change process of a certain parameter of the system from the starting time to the ending time in the ten-minute period time, and storing and outputting data of 6 time points of the starting time, the 2-minute time, the 4-minute time, the 6-minute time, the 8-minute time and the 10-minute time in ten-minute intervals; the method comprises the following specific steps:
1) Logic configuration:
The method comprises the steps of configuring flexibly-controlled ten-clock staged timing and data storage method logic, putting the flexibly-controlled ten-clock staged timing and data storage method logic into a related system of an operation unit after debugging, and accessing an analog measuring point into a signal input port A02 of the flexibly-controlled ten-clock staged timing and data storage method logic to monitor the change condition of related analog quantity;
2) Setting operation:
When the set end ENBL of the COUNTER is started to be 1, the IN1 end signal DVALGEN of the COUNTER is set to be 1, namely the COUNTER is started, and at the moment, timing and data storage are started; the output port OUT of the COUNTER is multiplied by A01, so that the output data is adjusted, and the counted value is converted into a time unit s;
3) Pulse triggering at fixed point time:
After operation is started, the starting time, the 2-minute time, the 4-minute time, the 6-minute time, the 8-minute time and the 10-minute time are respectively and synchronously timed according to the prefabricated data by a data judging function of the high selection functional block H/and when the corresponding time is reached, a 500ms pulse is triggered by the pulse functional block ONESHOT; the prefabricated values of 6 time points HIGHMON-HIGHMON 06 are 0, 120, 240, 360, 480 and 600;
4) Data storage and output:
after the pulse triggering at the corresponding moment of 500ms, outputting a signal 1 to the alternative functional block T, and within 500ms, the alternative functional block T selects the analog quantity corresponding to the Y signal end A02 as a signal source to output; after 500ms is finished, the pulse signal disappears to be 0, and the alternative functional block T selects data of the N signal end to be kept and output, namely the kept output corresponds to analog quantity data output at the moment of 500ms pulse triggering;
5) Program loop execution:
According to the process of the step 4), the data storage and output of the analog quantity of the initial time, the 2-minute time, the 4-minute time, the 6-minute time, the 8-minute time and the 10-minute time are sequentially completed;
6) Restoring the preparation state:
After finishing the data storage of analog quantity at the initial moment, 2 min moment, 4 min moment, 6 min moment, 8 min moment and 10 min moment, triggering pulse ONESHOT to send 1s pulse after the output value of the multiplication function block is larger than HIGHMON & lt 07 & gt prefabricated data, enabling an enable end ENBL port of a COUNTER to be set to 0 after the 1s pulse passes through the non-functional block N, resetting the COUNTER, and recovering the flexibly controlled ten-clock staged timing and data storage method logic to a preparation state, and restarting timing and storage work of the next period when the enable end ENBL of the COUNTER is set to 1 again after ONESHOT pulse disappears;
7) And (3) data export:
The data of the analog quantities of the starting moment, the 2-minute moment, the 4-minute moment, the 6-minute moment, the 8-minute moment and the 10-minute moment recorded in the period are stored in DFIELD01-DFIELD06 in logic, the stored data are exported and analyzed, and analysis and optimization basis are provided for the optimization of the coordination control system of the next period unit.
By means of the scheme, a high-efficiency and accurate storage method can be provided for important measurement data of the thermal generator set through a flexibly controlled ten-minute staged timing and data storage method; the method is mainly used for storing important measurement data of the thermal generator set, is suitable for various DCS and PLC control systems on the market, can realize the functions of data measurement and storage through the current DCS and PLC control systems, and saves cost; according to the invention, the change process of a certain parameter of the system from the initial moment to the final moment in the set period time is timed, the data in the set interval are stored and output, and the output data has important analysis, calculation and optimization basis for optimizing the coordinated control system of the unit.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a logic diagram of a flexibly controlled ten minute periodic timing and data storage method of the present invention.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Referring to fig. 1, the present embodiment provides a flexibly controlled ten-minute staged timing and data storage method, and for storing important measurement data of a thermal generator set, the following logic is executed:
Timing the change process of a certain parameter of the system from the starting time to the ending time in the ten-minute period time, and storing and outputting data of 6 time points of the starting time, the 2-minute time, the 4-minute time, the 6-minute time, the 8-minute time and the 10-minute time in ten-minute intervals; the method comprises the following specific steps:
1) Logic configuration:
The method comprises the steps of configuring flexibly-controlled ten-clock staged timing and data storage method logic, putting the flexibly-controlled ten-clock staged timing and data storage method logic into a related system of an operation unit after debugging, and accessing an analog measuring point into a signal input port A02 of the flexibly-controlled ten-clock staged timing and data storage method logic to monitor the change condition of related analog quantity;
2) Setting operation:
When the set end ENBL of the COUNTER is started to be 1, the IN1 end signal DVALGEN of the COUNTER is set to be 1, namely the COUNTER is started, and at the moment, timing and data storage are started; the output port OUT of the COUNTER is multiplied by A01, so that the output data is adjusted, and the counted value is converted into a time unit s;
3) Pulse triggering at fixed point time:
After operation is started, the starting time, the 2-minute time, the 4-minute time, the 6-minute time, the 8-minute time and the 10-minute time are respectively and synchronously timed according to the prefabricated data by a data judging function of the high selection functional block H/and when the corresponding time is reached, a 500ms pulse is triggered by the pulse functional block ONESHOT; the prefabricated values of 6 time points HIGHMON-HIGHMON 06 are 0, 120, 240, 360, 480 and 600;
4) Data storage and output:
after the pulse triggering at the corresponding moment of 500ms, outputting a signal 1 to the alternative functional block T, and within 500ms, the alternative functional block T selects the analog quantity corresponding to the Y signal end A02 as a signal source to output; after 500ms is finished, the pulse signal disappears to be 0, and the alternative functional block T selects data of the N signal end to be kept and output, namely the kept output corresponds to analog quantity data output at the moment of 500ms pulse triggering;
5) Program loop execution:
According to the process of the step 4), the data storage and output of the analog quantity of the initial time, the 2-minute time, the 4-minute time, the 6-minute time, the 8-minute time and the 10-minute time are sequentially completed;
6) Restoring the preparation state:
After finishing the data storage of analog quantity at the initial moment, 2 min moment, 4 min moment, 6 min moment, 8 min moment and 10 min moment, triggering pulse ONESHOT to send 1s pulse after the output value of the multiplication function block is larger than HIGHMON & lt 07 & gt prefabricated data, enabling an enable end ENBL port of a COUNTER to be set to 0 after the 1s pulse passes through the non-functional block N, resetting the COUNTER, and recovering the flexibly controlled ten-clock staged timing and data storage method logic to a preparation state, and restarting timing and storage work of the next period when the enable end ENBL of the COUNTER is set to 1 again after ONESHOT pulse disappears;
7) And (3) data export:
The data of the analog quantities of the starting moment, the 2-minute moment, the 4-minute moment, the 6-minute moment, the 8-minute moment and the 10-minute moment recorded in the period are stored in DFIELD01-DFIELD06 in logic, the stored data are exported and analyzed, and analysis and optimization basis are provided for the optimization of the coordination control system of the next period unit.
The invention can provide an efficient and accurate storage method for important measurement data of the thermal generator set; the method is mainly used for storing important measurement data of the thermal generator set, is suitable for various DCS and PLC control systems on the market, can realize the functions of data measurement and storage through the current DCS and PLC control systems, and saves cost; according to the invention, the change process of a certain parameter of the system from the initial moment to the final moment in the set period time is timed, the data in the set interval are stored and output, and the output data has important analysis, calculation and optimization basis for optimizing the coordinated control system of the unit.
The following describes the flexible control ten minute step timing and data storage method, taking the main steam pressure as an example, and the steps are as follows:
1) Logic configuration. The method comprises the steps of configuring flexibly-controlled ten-clock staged timing and data storage method logic, putting the flexibly-controlled ten-clock staged timing and data storage method logic into a coordinated control system of an operation unit after debugging, taking main steam pressure as an example, connecting a unit main steam pressure measuring point into a flexibly-controlled ten-clock staged timing and data storage method logic signal input port A02, and monitoring the change condition of the unit main steam pressure.
2) And setting operation. When the setting end ENBL of the COUNTER COUNTER starts to be 1, the IN1 end signal DVALGEN01 of the COUNTER COUNTER of the ten-clock staged timing and data storage method logic of the machine activity control is set to be 1, namely the COUNTER is started, and at the moment, the ten-clock staged timing and data storage method of flexible control starts to time and store data. Here the output port OUT of COUNTER is multiplied by a01 to effect an adjustment of the output data such that the counted value is converted into time units s.
3) The fixed point time pulse triggers. After operation is started, the data judgment function of the high selection functional block 'H/' is used for respectively and synchronously timing 'starting time, 2 minutes time, 4 minutes time, 6 minutes time, 8 minutes time and 10 minutes time' according to prefabricated data, and when the corresponding time is reached, a 500ms pulse is triggered through the pulse functional block 'ONESHOT'; in particular, HIGHMON-HIGHMON 06 have preformed data of 0, 120, 240, 360, 480, 600.
4) And storing and outputting data. After pulse triggering at the corresponding moment of 500ms, outputting a signal '1' to a second-choice functional block 'T', wherein the second-choice functional block 'T' selects a 'unit main steam pressure' corresponding to a 'Y' signal end 'A02' at the moment as a signal source to be output within 500 ms; after 500ms is finished, the pulse signal disappears to be 0, the alternative functional block T selects the data of the alternative functional block N signal end (the output value of the alternative functional block at the pulse triggering moment) to be kept output, namely, the main steam pressure data corresponding to the pulse triggering moment of 500ms is kept output, so that the data storage and output functions of main steam pressure of a pulse triggering moment unit are realized;
5) The program is executed in a loop. According to the process of the step 4), the data of the main steam pressure of the unit are sequentially stored and output at the starting moment, the 2-minute moment, the 4-minute moment, the 6-minute moment, the 8-minute moment and the 10-minute moment;
6) The preparation state is restored. After the data storage of the main steam pressure of the unit is finished, the output value of the multiplication function block 'x' is larger than HIGHMON preset data (preset 600 is 10 minutes here), the trigger pulse ONESHOT07 sends 1s pulse, the enable end ENBL port of the COUNTER is set to be 0 after the 1s pulse is taken out of the non-function block 'N', the COUNTER is reset, at this time, a flexibly controlled ten-clock staged timing and data storage method is logically restored to a preparation state, and after ONESHOT pulse disappears, the enable end ENBL of the COUNTER is set to be 1 again, timing and storage work of the next period is restarted.
7) And (5) data export. The data of the main steam pressure of the unit, which is recorded in the period, such as the starting moment, the 2-minute moment, the 4-minute moment, the 6-minute moment, the 8-minute moment and the 10-minute moment, are stored in DFIELD-DFIELD in logic, and the stored data are exported and analyzed to provide analysis and optimization basis for the optimization of the coordination control system of the unit in the next period.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (1)
1. A flexibly controlled ten-minute staged timing and data storage method is characterized in that the following logic is executed aiming at the storage of important measurement data of a thermal generator set:
Timing the change process of a certain parameter of the system from the starting time to the ending time in the ten-minute period time, and storing and outputting data of 6 time points of the starting time, the 2-minute time, the 4-minute time, the 6-minute time, the 8-minute time and the 10-minute time in ten-minute intervals; the method comprises the following specific steps:
1) Logic configuration:
The method comprises the steps of configuring flexibly-controlled ten-clock staged timing and data storage method logic, putting the flexibly-controlled ten-clock staged timing and data storage method logic into a related system of an operation unit after debugging, and accessing an analog measuring point into a signal input port A02 of the flexibly-controlled ten-clock staged timing and data storage method logic to monitor the change condition of related analog quantity;
2) Setting operation:
When the set end ENBL of the COUNTER is started to be 1, the IN1 end signal DVALGEN of the COUNTER is set to be 1, namely the COUNTER is started, and at the moment, timing and data storage are started; the output port OUT of the COUNTER is multiplied by A01, so that the output data is adjusted, and the counted value is converted into a time unit s;
3) Pulse triggering at fixed point time:
After operation is started, the starting time, the 2-minute time, the 4-minute time, the 6-minute time, the 8-minute time and the 10-minute time are respectively and synchronously timed according to the prefabricated data by the data judging function of the high selection functional block 'H/', and after the corresponding time is reached, a 500ms pulse is triggered by the pulse functional block ONESHOT; the prefabricated values of 6 time points HIGHMON-HIGHMON 06 are 0, 120, 240, 360, 480 and 600;
4) Data storage and output:
After the pulse triggering at the corresponding moment of 500ms, outputting a signal 1 to the alternative functional block T, and within 500ms, the alternative functional block T selects the analog quantity corresponding to the Y signal end A02 as a signal source to output; after 500ms is finished, the pulse signal disappears to be 0, and the alternative functional block T selects data of the N signal end to be kept and output, namely the kept output corresponds to analog quantity data output at the moment of 500ms pulse triggering;
5) Program loop execution:
according to the process of the step 4), the data storage and output of the analog quantity of the initial time, the 2-minute time, the 4-minute time, the 6-minute time, the 8-minute time and the 10-minute time are sequentially completed;
6) Restoring the preparation state:
After finishing the data storage of analog quantity at the initial moment, 2 min moment, 4 min moment, 6 min moment, 8 min moment and 10 min moment, triggering pulse ONESHOT to send 1s pulse after the output value of the multiplication function block is larger than HIGHMON & lt 07 & gt prefabricated data, enabling an enable end ENBL port of a COUNTER to be set to 0 after the 1s pulse passes through the non-functional block N, resetting the COUNTER, and recovering the flexibly controlled ten-clock staged timing and data storage method logic to a preparation state, and restarting timing and storage work of the next period when the enable end ENBL of the COUNTER is set to 1 again after ONESHOT pulse disappears;
7) And (3) data export:
The data of the analog quantity of the starting moment, the 2-minute moment, the 4-minute moment, the 6-minute moment, the 8-minute moment and the 10-minute moment recorded in the period are stored in DFIELD 01-DFIELD 06 in logic, the stored data are exported and analyzed, and analysis and optimization basis are provided for the optimization of the coordination control system of the next period unit.
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