CN110889641A - System and method for measuring and calculating pumped power generation capacity of pumped storage power station and storage medium - Google Patents
System and method for measuring and calculating pumped power generation capacity of pumped storage power station and storage medium Download PDFInfo
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Abstract
The invention belongs to the technical field of pumped storage power stations, and particularly relates to a pumped storage power station pumped power generation capacity measuring and calculating system, method and storage medium. The invention is characterized in that a water inlet and a water outlet of an upper reservoir of a pumped storage power station are connected with an upper reservoir water level gauge, a power measuring module of a generator motor is connected with a current transformer at an outlet of the generator motor and a voltage transformer at an outlet of the generator motor, and the power measuring module of the generator motor and the upper reservoir water level gauge of the pumped storage power station are sequentially connected with a protocol converter, a data acquisition unit, an optical fiber network, a switch and a computer through communication interfaces. The method and the device can quickly complete the measurement and calculation of the pumped storage power station pumped generation capacity on the premise of ensuring the analysis accuracy by means of the high efficiency of the computer, are beneficial to improving the safe and economic operation level of the power system, and quickly and accurately master the pumped storage power generation capacity of each pumped storage power station.
Description
Technical Field
The invention belongs to the technical field of pumped storage power stations, and particularly relates to a pumped storage power station pumped power generation capacity measuring and calculating system, a method and a storage medium, which are suitable for power grid dispatching and pumped storage power station operation management departments to work and can quickly and accurately master the pumped power generation capacity of each pumped storage power station.
Background
With the development of new energy resources such as extra-high voltage, nuclear power, wind power, photovoltaic and the like, the demand of a power system on a pumped storage power station is higher and higher, and in order to master the pumped power generation capacity of each pumped storage power station in the power system, the safe and economic operation level of the power system is improved. At present, each pumped storage power station generally adopts the upper reservoir capacity and the water amount consumed by the pumped storage power station to send or absorb unit kilowatt to estimate the pumped storage power generation capacity of the pumped storage power station, the calculation process is complex, and due to the loss of the upper reservoir capacity and the flow passage, the method has the advantages of large calculation workload, low working efficiency and low accuracy, and has great obstruction to the power grid dispatching and the pumped storage power station operation management department to master the pumped storage power generation capacity of the pumped storage power station.
Disclosure of Invention
The invention provides a system and a method for measuring and calculating the pumped power generation capacity of a pumped storage power station and a storage medium, aiming at the problems in the prior art. The purpose is to provide a measuring and calculating system and a method which can rapidly complete the measuring and calculating work of the pumped-storage power station pumped-storage power generation capacity on the premise of ensuring the analysis accuracy by means of the high efficiency of a computer and are beneficial to improving the safe and economic operation level of a power system.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a pumped storage power station pumped power generation capacity measuring and calculating system is characterized in that a water inlet and a water outlet of an upper reservoir of a pumped storage power station are connected with a reservoir water level gauge, a power measuring module of a generator motor is connected with a current transformer at an outlet of the generator motor and a voltage transformer at an outlet of the generator motor, and the power measuring module of the generator motor and the water level gauge of the upper reservoir of the pumped storage power station are sequentially connected with a protocol converter, a data collector, an optical fiber network, a switch and a computer through communication interfaces.
The generator motor outlet current transformer and the generator motor outlet voltage transformer are specifically connected to a generator motor outlet bus of the pumped storage power station and are used for measuring phase current and line voltage of the generator motor outlet bus.
The upper reservoir water level gauge is used for measuring the upper reservoir water level; and the generating motor power measuring module calculates the power of the generating motor according to the collected phase current and line voltage of the generating motor outlet bus.
And the computer runs water pumping power generation capacity measuring and calculating software of the water pumping power storage station, and collects the water level of the upper reservoir of the water pumping power storage station and the power of the generator motor in real time.
And the power measuring module of the generator motor and the data collected by the reservoir water level gauge on the pumped storage power station are transmitted to a computer through a communication interface, a protocol converter, a data collector, an optical fiber network and a switch.
The pumped storage power station pumped power generation capacity measuring and calculating system comprises the following modules: the system comprises a data block, a calculation block and a page control block; wherein: the data block is used for storing the collected corresponding upper reservoir water level data, the running hours and the total power data group of the unit; the page control block is used for acquiring and transmitting data needing to be calculated to the calculation block; and the calculation block is used for fitting a calculation formula according to the acquired big data, the reservoir water level, the remaining operation hours and the power, and calculating the remaining operation hours according to the data transmitted by the page control block.
The pumped storage power station pumped power generation capacity measuring and calculating method comprises the following steps:
step 1, inputting a current water level;
and 3, inputting the power of the single unit.
And 4, the pumping and dispatching capacity measuring and calculating software of the pumped storage power station automatically measures the time for simultaneously generating or pumping one or more units from the current water level to the target water level under the current power of the units according to the collected water level of the upper reservoir of the pumped storage power station and the power of the generator motor.
According to the pumped storage power station pumped generation capacity measuring and calculating method, when the unit generates electricity, the data of the unit generation operation time in the interval from the highest operation water level to the lowest operation water level of a reservoir on the pumped storage power station are recorded at intervals of 0.5 m;
when the unit pumps water, recording the data of the unit pumping operation time in the interval from the lowest operation water level of the upper reservoir to the highest operation water level of the pumped storage power station at intervals of 0.5 m;
the measurement and calculation of the relation between the pumped storage power station unit and the upper reservoir water level during pumped storage operation is carried out by utilizing a mathematical method of discrete analysis to correct, obtain a measurement and calculation model of the relation between the pumped storage power station unit and the upper reservoir water level during power generation or pumped storage operation, and the measurement and calculation model is used as the pumped storage power station pumping and emission capacity measurement and calculation software bottom layer data;
the pumped storage power station pumping capacity measuring and calculating software stores data of the relation between the pumped storage power station unit and the upper reservoir water level during power generation or pumping.
The pumped storage power station pumped power generation capacity measuring and calculating device comprises a processor and a memory for storing instructions executable by the processor; the processor is configured to employ the pumped-storage power station pumped-storage power generation capacity estimation method.
A computer storage medium, on which a computer program is stored, which, when being executed by a processor, implements the estimation method of the pumped storage power station pumped power generation capacity estimation system as described above.
The invention has the following advantages and beneficial technical effects:
the invention relates to a system and a method for measuring and calculating the pumped power generation capacity of a pumped storage power station, which can quickly complete the measurement and calculation of the pumped power generation capacity of the pumped storage power station on the premise of ensuring the analysis accuracy by means of the high efficiency of a computer and is beneficial to improving the safe and economic operation level of a power system. The method is suitable for the work of power grid dispatching and pumped storage power station operation management departments, and can quickly and accurately master the pumped storage power generation capacity of each pumped storage power station.
Drawings
In order to facilitate the understanding and practice of the present invention for those of ordinary skill in the art, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and the detailed description, the following examples are provided to illustrate the present invention, but it should be understood that the scope of the present invention is not limited by the detailed description.
FIG. 1 is a block diagram of the overall architecture of the present invention;
FIG. 2 is a model diagram of the relationship between the pumped storage power station unit and the water level of the upper reservoir during power generation operation;
FIG. 3 is a model diagram of the relationship between the pumped storage power station unit and the upper reservoir during pumped storage operation according to the present invention;
FIG. 4 is a power capacity estimation interface of the system of the present invention;
FIG. 5 is a water pumping capacity estimation interface of the system of the present invention.
In the figure: the system comprises a computer 1, a switch 2, an optical fiber network 3, a data collector 4, a protocol converter 5, a communication interface 6, an upper reservoir water level gauge 7, a generating motor power measuring module 8, a generating motor outlet voltage transformer 9 and a generating motor outlet current transformer 10.
Detailed Description
Example 1
The invention relates to a pumped storage power station pumped power generation capacity measuring and calculating system, a pumped storage power station pumped power generation capacity measuring and calculating method and a storage medium, in particular to a measuring and calculating system which utilizes a water level gauge arranged at an upper reservoir water inlet and outlet of a pumped storage power station to collect and record big data of the relation between the upper reservoir water level of the pumped storage power station and the power generation and pumping running time of a unit, counts and analyzes the time of the unit continuously generating power to the lowest power generation water level of the upper reservoir and the time of the unit continuously pumping to the highest water level of the upper reservoir at any water level, creates a model of the upper reservoir water level and the power generation and pumping running time of the unit, and.
As shown in fig. 1, fig. 1 is a block diagram of the overall structure of the system of the present invention. The system of the invention comprises: the device comprises a pumped storage power station upper reservoir water level gauge 7, an optical fiber network 3, a data collector 4, a protocol converter 5, a communication interface 6, a generator motor outlet voltage transformer 9, a generator motor outlet current transformer 10, a generator motor power measurement module 8, a switch 2, a computer 1 and pumped storage power station pumped power generation capacity measurement software.
An upper reservoir water level gauge 7 for measuring the upper reservoir water level is arranged at the water inlet and the water outlet of the upper reservoir of the pumped storage power station and is used for measuring the upper reservoir water level.
A generator motor outlet current transformer 10 and a generator motor outlet voltage transformer 9 are arranged on a generator motor outlet bus of the pumped storage power station and are used for measuring phase current and line voltage of the generator motor outlet bus.
And the generator motor power measuring module 8 calculates the power of the generator motor according to the collected phase current and line voltage of the outlet bus of the generator motor.
The pumped storage power station pumped power generation capacity measuring and calculating software runs on a computer.
Data collected by the generator motor power measuring module 8 and the upper reservoir water level gauge 7 of the pumped storage power station are transmitted to the computer 1 through the communication interface 6, the protocol converter 5, the data collector 4, the optical fiber network 3 and the exchanger 2.
The computer 1 is provided with pumped storage power station pumped power generation capacity measuring and calculating software, and the water level of an upper reservoir of the pumped storage power station and the power of a generator motor are collected in real time.
As shown in table 1, table 1 is the bottom layer data content in the embodiment of the present invention, and when the power generation operation of a certain power station 1 machine is from 392 water level to X water level. And recording the data of the unit power generation operation time in the interval from the highest operation water level of the upper reservoir to the lowest operation water level of the pumped storage power station at intervals of 0.5m when the unit is in power generation operation.
As shown in table 2, table 2 is the bottom data content in another embodiment of the present invention, and when a power station 1 machine pumps water and operates from 370.5 water level to X water level. And recording the water pumping operation time data of the unit in the interval from the lowest operation water level to the highest operation water level of the upper reservoir of the pumped storage power station at intervals of 0.5m when the unit is pumped.
As shown in fig. 2 and fig. 3, fig. 2 is a model diagram of the relationship between the pumped storage power station unit during power generation operation and the water level of the upper reservoir in the present invention, and fig. 3 is a model diagram of the relationship between the pumped storage power station unit during pumping operation and the water level of the upper reservoir in the present invention. And (3) correcting by using a mathematical method of discrete analysis to obtain a measuring and calculating model of the relation between the pumped storage power station unit and the upper reservoir water level during power generation or pumped storage operation, and using the measuring and calculating model as the bottom layer data of the pumped storage power station pumping and calculating software.
The pumped storage power station pumping capacity measuring and calculating software stores data of the relation between the pumped storage power station unit and the upper reservoir water level during power generation or pumping.
Example 2
The invention relates to a pumped storage power station pumped power generation capacity measuring and calculating system, which comprises the following modules: data blocks, calculation blocks, and page control blocks. The data block is responsible for storing the collected corresponding upper reservoir water level data, the running hours and the total power data group of the unit; the page control block is responsible for acquiring and transmitting data needing to be calculated to the calculation block; the calculation block is responsible for fitting a calculation formula according to the acquired big data, the reservoir water level, the remaining operation hours and the power, and calculating the remaining operation hours according to the data transmitted by the page control block.
Example 3
As shown in fig. 4 and 5, fig. 4 is a power generation capacity calculation interface of the system of the present invention, and fig. 5 is a pumping capacity calculation interface of the system of the present invention.
The invention discloses a method for measuring and calculating the pumped power generation capacity of a pumped storage power station.
And the calculation block performs formula calculation according to the water level, the power and the target water level to obtain the remaining operation hours.
And the page control block is responsible for setting a page UI (user interface) of the whole measuring and calculating software, and inputting and outputting data.
The data block, the calculation block and the page control block mutually transmit data and cooperatively work to complete the measurement and calculation function of the whole software.
Example 4
The invention discloses a method for measuring and calculating the pumped power generation capacity of a pumped storage power station, which comprises the following steps:
step 1, displaying the current water level in the graph 4 and 5, wherein the water level can be manually modified.
And 3, inputting the power of the single unit set at the power position of the single unit set in the graph 4 and 5.
And 4, automatically measuring the time for simultaneously generating electricity or pumping water for one or more units from the current water level to the target water level under the current power of the units by software according to the database.
Example 5
Based on the same invention concept, the invention also provides a device for measuring and calculating the pumped power generation capacity of the pumped storage power station, which comprises a processor and a memory for storing the instructions executable by the processor.
The processor is configured to employ the pumped-storage power station pumped-storage power generation capacity estimation method.
Example 6
A computer storage medium having a computer program stored thereon, wherein the computer program when executed by a processor implements the method for evaluating the pumped-storage power station pumped-hydro power generation capacity evaluation system as described above.
Embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
TABLE 1 Power station 1 machine Power Generation time from 392 Water level to X Water level (min)
| Water level | 392 | 391.5 | 391 | 390.5 | 390 | 389.5 | 389 | 388.5 | 388 |
| Time of |
0 | 43 | 83 | 123 | 161 | 198 | 234 | 270 | 306 |
| Water level | 387.5 | 387 | 386.5 | 386 | 385.5 | 385 | 384.5 | 384 | 383.5 |
| Time of day | 342 | 375 | 408 | 440 | 472 | 504 | 536 | 568 | 600 |
| Water level | 383 | 382.5 | 382 | 381.5 | 381 | 380.5 | 380 | 379.5 | 379 |
| Time of day | 632 | 664 | 695 | 724 | 752 | 780 | 808 | 836 | 864 |
| Water level | 378.5 | 378 | 377.5 | 377 | 376.5 | 376 | 375.5 | 375 | 374.5 |
| Time of day | 892 | 920 | 944 | 968 | 994 | 1020 | 1046 | 1072 | 1095 |
| Water level | 374 | 373.5 | 373 | 372.5 | 372 | 371.5 | 371 | 370.5 | |
| Time of day | 1117 | 1139 | 1161 | 1183 | 1207 | 1231 | 1251 | 1268 |
TABLE 2 Water-pumping operation of 1 machine in a certain power station from 370.5 water level to X water level (min)
| Water level | 370.5 | 371 | 371.5 | 372 | 372.5 | 373 | 373.5 | 374 | 374.5 |
| Time of |
0 | 23 | 47 | 71 | 97 | 123 | 149 | 176 | 203 |
| |
375 | 375.5 | 376 | 376.5 | 377 | 377.5 | 378 | 378.5 | 379 |
| Time of day | 230 | 260 | 290 | 320 | 350 | 380 | 410 | 440 | 473 |
| Water level | 379.5 | 380 | 380.5 | 381 | 381.5 | 382 | 382.5 | 383 | 383.5 |
| Time of day | 506 | 539 | 572 | 605 | 638 | 674 | 710 | 748 | 786 |
| Water level | 384 | 384.5 | 385 | 385.5 | 386 | 386.5 | 387 | 387.5 | 388 |
| Time of day | 826 | 866 | 906 | 946 | 986 | 1026 | 1068 | 1110 | 1152 |
| Water level | 388.5 | 389 | 389.5 | 390 | 390.5 | 391 | 391.5 | 392 | |
| Time of day | 1194 | 1240 | 1286 | 1332 | 1378 | 1424 | 1472 | 1522 |
Claims (10)
1. The pumped storage power station pumped power generation capacity measuring and calculating system is characterized in that: an upper reservoir water inlet and outlet of the pumped storage power station is connected with an upper reservoir water level gauge (7), a power generation motor power measurement module (8) is connected with a power generation motor outlet current transformer (10) and a power generation motor outlet voltage transformer (9), and the power generation motor power measurement module (8) and the upper reservoir water level gauge (7) of the pumped storage power station are sequentially connected with a protocol converter (5), a data acquisition unit (4), an optical fiber network (3), a switch (2) and a computer (1) through a communication interface (6).
2. The pumped-storage power station pumped-storage generating capacity measuring and calculating system of claim 1, wherein: the generator motor outlet current transformer (10) and the generator motor outlet voltage transformer (9) are specifically connected to a generator motor outlet bus of the pumped storage power station and are used for measuring phase current and line voltage of the generator motor outlet bus.
3. The pumped-storage power station pumped-storage generating capacity measuring and calculating system of claim 1, wherein: the upper reservoir water level gauge (7) is used for measuring the upper reservoir water level; and the generator motor power measuring module (8) calculates the power of the generator motor according to the collected phase current and line voltage of the outlet bus of the generator motor.
4. The pumped-storage power station pumped-storage generating capacity measuring and calculating system of claim 1, wherein: and the computer (1) runs with pumped storage power station pumped power generation capacity measuring and calculating software, and collects the water level of the upper reservoir of the pumped storage power station and the power of the generator motor in real time.
5. The pumped-storage power station pumped-storage generating capacity measuring and calculating system of claim 1, wherein: the power measuring module (8) of the generator motor and the data collected by the upper reservoir water level gauge (7) of the pumped storage power station are transmitted to the computer (1) through the communication interface (6), the protocol converter (5), the data collector (4), the optical fiber network (3) and the switch (2).
6. The pumped-storage power station pumped-storage generating capacity measuring and calculating system of claim 1, wherein: the system comprises the following modules: the system comprises a data block, a calculation block and a page control block; wherein:
the data block is used for storing the collected corresponding upper reservoir water level data, the running hours and the total power data group of the unit;
the page control block is used for acquiring and transmitting data needing to be calculated to the calculation block;
and the calculation block is used for fitting a calculation formula according to the acquired big data, the reservoir water level, the remaining operation hours and the power, and calculating the remaining operation hours according to the data transmitted by the page control block.
7. The pumped storage power station pumped power generation capacity measuring and calculating method is characterized by comprising the following steps: the method comprises the following steps:
step 1, inputting a current water level;
step 2, inputting a target water level;
and 3, inputting the power of the single unit.
And 4, the pumping and dispatching capacity measuring and calculating software of the pumped storage power station automatically measures the time for simultaneously generating or pumping one or more units from the current water level to the target water level under the current power of the units according to the collected water level of the upper reservoir of the pumped storage power station and the power of the generator motor.
8. The pumped-storage power station pumped-storage power generation capacity measurement method of claim 7, wherein the method comprises the following steps: when the unit generates electricity, recording the data of the unit electricity generation operation time in the interval from the highest operation water level of the upper reservoir to the lowest operation water level of the pumped storage power station at intervals of 0.5 m;
when the unit pumps water, recording the data of the unit pumping operation time in the interval from the lowest operation water level of the upper reservoir to the highest operation water level of the pumped storage power station at intervals of 0.5 m;
the measurement and calculation of the relation between the pumped storage power station unit and the upper reservoir water level during pumped storage operation is carried out by utilizing a mathematical method of discrete analysis to correct, obtain a measurement and calculation model of the relation between the pumped storage power station unit and the upper reservoir water level during power generation or pumped storage operation, and the measurement and calculation model is used as the pumped storage power station pumping and emission capacity measurement and calculation software bottom layer data;
the pumped storage power station pumping capacity measuring and calculating software stores data of the relation between the pumped storage power station unit and the upper reservoir water level during power generation or pumping.
9. The pumped storage power station pumped power generation capacity measuring and calculating device is characterized in that: comprising a processor and a memory for storing processor-executable instructions; the processor is configured to employ the pumped-storage power station pumped-storage power generation capacity estimation method.
10. A computer storage medium, characterized by: the computer storage medium has a computer program stored thereon, and the computer program is executed by a processor to implement the estimation method of the pumped storage power station pumped power generation capacity estimation system.
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| CN201911228941.XA CN110889641A (en) | 2019-12-04 | 2019-12-04 | System and method for measuring and calculating pumped power generation capacity of pumped storage power station and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112396284A (en) * | 2020-09-18 | 2021-02-23 | 国家电网有限公司 | Intelligent starting and stopping auxiliary system for pumped storage power station |
| CN116163879A (en) * | 2023-04-25 | 2023-05-26 | 南方电网调峰调频发电有限公司储能科研院 | Operation condition adjusting method and device for pumped storage power station and computer equipment |
-
2019
- 2019-12-04 CN CN201911228941.XA patent/CN110889641A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112396284A (en) * | 2020-09-18 | 2021-02-23 | 国家电网有限公司 | Intelligent starting and stopping auxiliary system for pumped storage power station |
| CN116163879A (en) * | 2023-04-25 | 2023-05-26 | 南方电网调峰调频发电有限公司储能科研院 | Operation condition adjusting method and device for pumped storage power station and computer equipment |
| CN116163879B (en) * | 2023-04-25 | 2023-08-15 | 南方电网调峰调频发电有限公司储能科研院 | Operation condition adjusting method and device for pumped storage power station and computer equipment |
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