CN116537999A - Guide vane opening degree determining method and device, electronic equipment and storage medium - Google Patents
Guide vane opening degree determining method and device, electronic equipment and storage medium Download PDFInfo
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- CN116537999A CN116537999A CN202310770645.2A CN202310770645A CN116537999A CN 116537999 A CN116537999 A CN 116537999A CN 202310770645 A CN202310770645 A CN 202310770645A CN 116537999 A CN116537999 A CN 116537999A
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- 238000000034 method Methods 0.000 title claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 108
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
- F03B15/02—Controlling by varying liquid flow
- F03B15/04—Controlling by varying liquid flow of turbines
- F03B15/06—Regulating, i.e. acting automatically
- F03B15/08—Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses a guide vane opening degree determining method, a guide vane opening degree determining device, electronic equipment and a storage medium. Acquiring a unit water head value and a unit rotating speed corresponding to a target unit; if the water head value of the unit is lower than the water head value threshold value and the rotating speed of the unit is higher than the asynchronous opening She Zhuaisu threshold value, selecting two pairs of guide vanes from the plurality of pairs of guide vanes as pre-opening fixed guide vanes, and determining the rest guide vanes as pre-opening dynamic guide vanes; setting the pre-opened fixed guide vane as a fixed guide vane opening degree, and setting the matched dynamic guide vane opening degree of the pre-opened dynamic guide vane according to a dynamic guide vane opening degree calculation formula; and sending the opening degree of the guide vane of each guide vane to a unit rotating speed controller so as to realize the adjustment of the unit rotating speed and the rapid grid connection operation of the target unit. The problem that the water pump and the water turbine in the energy storage unit are easy to enter the working condition of the counter water pump, so that the unit is difficult to grid, the stability of the energy storage unit is improved, and the grid-connected speed and accuracy of the unit are improved.
Description
Technical Field
The present invention relates to the field of data processing technologies, and in particular, to a method and apparatus for determining a vane opening, an electronic device, and a storage medium.
Background
The energy storage unit has five basic steady-state working conditions of static state, power generation, phase modulation in the power generation direction, water pumping, phase modulation in the water pumping direction and the like, and various transient working conditions. In order to meet the requirements of the power grid, the working condition is changed frequently, and the unit characteristics and the system hydraulic characteristics are changed drastically.
The inventors have found that the following drawbacks exist in the prior art in the process of implementing the present invention: at present, when the energy storage unit runs in a low water head area in an idle mode, the unit is easy to enter a water return pump area from an flying state, back flow or flow removal is generated on the front surface or the back surface near the inlet and the inlet edge of the rotating wheel, and the alternating force generated by turbulent flow in the area acts on the blades to induce strong and random pressure pulsation and mechanical vibration. The water pump turbine is operated as a water turbine and a water pump, the hydraulic design can enable the water pump turbine to have inverted S-shaped characteristics on the full characteristic curve, and the unit is difficult to normally grid-connected due to the influence of the S-shaped characteristics, so that the starting success rate is low.
Disclosure of Invention
The invention provides a guide vane opening determining method, a guide vane opening determining device, electronic equipment and a storage medium, so as to improve the stability of an energy storage unit and the grid-connected speed and accuracy of the unit.
According to an aspect of the present invention, there is provided a guide vane opening degree determining method, including:
acquiring a unit water head value and a unit rotating speed corresponding to a target unit; wherein the target unit comprises a plurality of pairs of guide vanes;
if the water head value of the unit is lower than the water head value threshold value and the rotating speed of the unit is higher than the asynchronous opening She Zhuaisu threshold value, selecting two pairs of guide vanes from the plurality of pairs of guide vanes as pre-opening fixed guide vanes, and determining the rest guide vanes as pre-opening dynamic guide vanes;
setting the pre-opened fixed guide vane as a fixed guide vane opening degree, and setting the matched dynamic guide vane opening degree of the pre-opened dynamic guide vane according to a dynamic guide vane opening degree calculation formula;
and sending the opening degree of the guide vane of each guide vane to a unit rotating speed controller so as to realize the adjustment of the unit rotating speed and the rapid grid connection operation of the target unit.
According to another aspect of the present invention, there is provided a guide vane opening degree determining apparatus, including:
the unit water head value and unit rotating speed acquisition module is used for acquiring a unit water head value and a unit rotating speed corresponding to a target unit; wherein the target unit comprises a plurality of pairs of guide vanes;
the pre-opening fixed guide vane and pre-opening dynamic guide vane determining module is used for selecting two pairs of guide vanes from the pairs of guide vanes as pre-opening fixed guide vanes and determining the rest guide vanes as pre-opening dynamic guide vanes if the water head value of the unit is lower than the water head value threshold value and the rotating speed of the unit is higher than the asynchronous guide opening She Zhuaisu threshold value;
The fixed guide vane opening and dynamic guide vane opening setting module is used for setting the pre-opened fixed guide vane as the fixed guide vane opening and setting the matched dynamic guide vane opening of the pre-opened dynamic guide vane according to a dynamic guide vane opening calculation formula;
the guide vane opening sending module is used for sending the guide vane opening of each guide vane to the unit rotating speed controller so as to realize the adjustment of the unit rotating speed and the rapid grid connection operation of the target unit.
According to another aspect of the present invention, there is provided an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the method for determining the opening degree of the guide vane according to any embodiment of the present invention when executing the computer program.
According to another aspect of the present invention, there is provided a computer readable storage medium storing computer instructions for causing a processor to implement the method for determining the opening degree of a guide vane according to any one of the embodiments of the present invention when executed.
According to the technical scheme, the water head value and the rotating speed of the unit corresponding to the target unit are obtained; if the water head value of the unit is lower than the water head value threshold value and the rotating speed of the unit is higher than the asynchronous opening She Zhuaisu threshold value, selecting two pairs of guide vanes from the plurality of pairs of guide vanes as pre-opening fixed guide vanes, and determining the rest guide vanes as pre-opening dynamic guide vanes; setting the pre-opened fixed guide vane as a fixed guide vane opening degree, and setting the matched dynamic guide vane opening degree of the pre-opened dynamic guide vane according to a dynamic guide vane opening degree calculation formula; and sending the opening degree of the guide vane of each guide vane to a unit rotating speed controller so as to realize the adjustment of the unit rotating speed and the rapid grid connection operation of the target unit. The problem that the water pump and the water turbine in the energy storage unit are easy to enter the working condition of the counter water pump, so that the unit is difficult to grid, the stability of the energy storage unit is improved, and the grid-connected speed and accuracy of the unit are improved.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for determining a vane opening according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a guide vane opening determining device according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device according to a third embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "target," "current," and the like in the description and claims of the present invention and the above-described drawings are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
Fig. 1 is a flowchart of a method for determining the opening of a guide vane, which is provided in an embodiment of the present invention, and the method may be implemented by a guide vane opening determining device, where the guide vane opening determining device may be implemented in a hardware and/or software manner, and is implemented by a host system in a target device, where the situation that a pump turbine in an energy storage unit is very easy to enter a counter pump working condition, and thus a unit is difficult to grid-connect is solved.
Accordingly, as shown in fig. 1, the method includes:
s110, acquiring a unit water head value and a unit rotating speed corresponding to the target unit.
Wherein the target assembly comprises a plurality of pairs of guide vanes.
The unit water head value can be the energy value of the unit in the unit weight of fluid.
Specifically, head refers to the energy that a fluid has per unit weight. The water heads include position water heads, pressure water heads and flow rate water heads. The sum of the position water head and the pressure water head is a pressure measuring pipe water head, the sum of the position water head and the pressure water head is a total water head, and the total water head refers to mechanical energy of fluid in unit weight. The head is expressed in terms of height, commonly used units are: and (5) rice.
The unit rotating speed can be the corresponding rotating speed value of the energy storage unit.
In this embodiment, the unit water head value and the unit rotational speed of the target unit need to be obtained, the rotational speed of the unit can be adjusted by adjusting the opening degree of the guide vane of each guide vane corresponding to the target unit, and the quick grid-connected operation can be realized by adjusting the rotational speed of the unit of the target unit.
Additionally, the target assembly includes pairs of vanes, such as: the target assembly includes 10 pairs of vanes, including a total of 20 vanes.
S120, if the water head value of the unit is lower than the water head value threshold value and the rotating speed of the unit is higher than the asynchronous guide opening She Zhuaisu threshold value, selecting two pairs of guide vanes from the plurality of pairs of guide vanes as pre-opening fixed guide vanes, and determining the rest guide vanes as pre-opening dynamic guide vanes.
The threshold value of the water head value may be a preset threshold value of the water head value. The asynchronous lead She Zhuaisu threshold may be a magnitude of target unit rotational speed required for the target unit to enter an asynchronous lead blade state. The pre-opened fixed guide vane can be a guide vane for executing fixed opening degree, and the guide vane opening degree can not be dynamically adjusted according to different rotating speeds of the machine set. The pre-opened dynamic guide vane can be a guide vane for executing dynamic opening, and the opening of the guide vane can be dynamically adjusted according to different rotating speeds of the unit.
In this embodiment, when the unit water head value is lower than the water head value threshold and the unit rotational speed is higher than the asynchronous vane opening rotational speed threshold, the target unit may enter an asynchronous vane opening state.
Further, after the target unit enters an asynchronous open guide vane state, two pairs of guide vanes in the multiple pairs of guide vanes need to be selected as pre-open fixed guide vanes, and the rest guide vanes are determined to be pre-open dynamic guide vanes.
For example, assume that the target assembly includes 10 pairs of vanes, including a total of 20 vanes. Two pairs of guide vanes need to be selected from 10 pairs of guide vanes to serve as pre-opening fixed guide vanes, namely the number of the pre-opening fixed guide vanes is 4, and the number of the pre-opening dynamic guide vanes is 16.
Specifically, assume that the numbers corresponding to the 20 guide vanes are: #1, #2, #3, #4, #5, #6, #7, #8, #9, #10, #11, #12, #13, #14, #15, #16, #17, #18, #19 and #20. #3, #4, #13, and #14 may be selected to be provided as pre-opened stay vanes; the remaining vanes are set as pre-opened dynamic vanes.
Optionally, after the obtaining the unit water head value and the unit rotational speed corresponding to the target unit, the method further includes: if the rotating speed of the unit is not higher than the asynchronous guide vane opening rotating speed threshold value or the water head value of the unit is not lower than the water head value threshold value, determining that all guide vanes corresponding to the target unit are in a synchronous state and the opening degrees of the guide vanes corresponding to all the guide vanes are the same; and calculating a guide vane opening set value through a target unit speed regulator system, and determining the guide vane opening set value as the guide vane opening corresponding to each guide vane.
In this embodiment, if the unit speed is not above the asynchronous on-guide She Zhuaisu threshold, or if the unit head value is not below the head value threshold, or if the unit speed is not above the asynchronous on-guide vane speed threshold and the unit head value is not below the head value threshold, then the target unit may not be able to enter the asynchronous on-guide state.
Further, all the guide vanes corresponding to the target unit are in a synchronous state, and the opening degrees of the guide vanes corresponding to all the guide vanes are the same; the set value of the opening degree of the guide vane can be calculated through a target unit speed regulator system, and the set value of the opening degree of the guide vane is determined to be the opening degree of the guide vane corresponding to each guide vane.
S130, setting the pre-opened fixed guide vane as the fixed guide vane opening degree, and setting the matched dynamic guide vane opening degree of the pre-opened dynamic guide vane according to a dynamic guide vane opening degree calculation formula.
The fixed guide vane opening degree can be the fixed guide vane opening degree determined according to the water head value of the unit. The dynamic vane opening may be the magnitude of the vane opening calculated from the unit rotational speed.
Optionally, the setting the pre-opened fixed guide vane to a fixed guide vane opening degree includes: acquiring the water head value of the unit corresponding to the target unit; according to the water head value of the unit, matching with a pre-constructed water head guide vane opening mapping table, and determining the opening of the target guide vane; and determining the opening degree of the target guide vane as the opening degree of the fixed guide vane corresponding to the pre-opened fixed guide vane.
The water head guide vane opening mapping table can be a mapping table capable of determining the guide vane opening according to the water head value of the unit. The target vane opening may be the size of the vane opening matching the unit head value.
In this embodiment, after the unit water head value of the target unit is determined, the unit water head value and the water head guide vane opening mapping table are subjected to matching processing, so that the target guide vane opening can be determined, that is, the fixed guide vane opening is determined.
In addition, a historical unit water head value and a historical fixed guide vane opening corresponding to the target unit are obtained, statistical construction processing is carried out according to the historical unit water head value and the historical fixed guide vane opening, and a water head guide vane opening mapping table can be further constructed.
Exemplary, as shown in table 1 below, a schematic diagram of a head vane opening map is provided. When the water head value of the unit is 523m, the 523m can be determined to be within the range of 503.3-524m, and the opening degree of the fixed guide vane can be determined to be 37%, specifically, the opening degree of the fixed guide vane is 0.37037036.
TABLE 1
Specifically, assuming that the water head value threshold is 525m, the asynchronous guide vane opening speed threshold is 78%, and the unit speed of the target unit is 85%.
Since 523m is below the head value threshold and the unit speed (85%) is above the asynchronous vane opening speed threshold (78%), an asynchronous vane opening state may be entered. Specifically, two pairs of guide vanes are selected from the pairs of guide vanes to serve as pre-opening fixed guide vanes, and the rest guide vanes are determined to be pre-opening dynamic guide vanes. The target unit gets rid of the problem of unstable rotation speed of the unit when the water head value of the unit is low by a pre-opening guide vane method so as to achieve the effect of rapid grid connection.
Furthermore, the rapid grid connection of the target unit can be realized under the assumption that the unit rotating speed reaches more than 95%. In addition, during the rapid grid connection of the target unit, the opening degree of the guide vane of the pre-opened fixed guide vane is kept unchanged, and the pre-opened dynamic guide vane enables the rotating speed of the target unit to be kept at 500 revolutions by adjusting the opening degree of the guide vane so as to realize the rapid grid connection.
In addition, if the water head value of the unit is 523m and the rotating speed of the unit of the target unit is 0% -50%, 20 guide vanes of the target unit are determined to be in a synchronous guide vane opening state, and each guide vane is in a primary opening limit, for example, a guide vane opening set value is set to be 10%.
Correspondingly, if the water head value of the unit is 523m and the rotating speed of the unit of the target unit is 50% -78%, 20 guide vanes of the target unit are determined to be in synchronous guide vane opening states, and each guide vane is in secondary opening limitation, for example, the set value of the guide vane opening is set to be 22%.
Optionally, the setting the matched dynamic vane opening degree of the pre-opened dynamic vane according to a dynamic vane opening degree calculation formula includes: acquiring the number of guide vanes of the target unit, the opening degree of the fixed guide vanes and the set value of the opening degree of the guide vanes corresponding to a speed regulator system of the target unit; according to the dynamic guide vane opening degree calculation formula:
Calculating to obtain the dynamic guide vane opening degree corresponding to the pre-opened dynamic guide vane>The method comprises the steps of carrying out a first treatment on the surface of the Wherein N represents the number of guide vanes of the target unit; n-4 represents the number of the pre-opened dynamic guide vanes; CSC represents a guide vane opening setting value corresponding to a target unit speed regulator system; />Indicating the stay vane opening.
In this embodiment, the target unit is in a start-up state, and the guide vane opening setting value is periodically sent out. Further, according to the number of the guide vanes of the target unit, the opening degree of the fixed guide vanes and the set value of the opening degree of the guide vanes, a dynamic guide vane opening degree calculation formula is adopted:to calculate the dynamic guide vane opening.
Wherein N-4 represents the number of pre-opened dynamic vanes. Among the vanes of the target assembly, 4 pre-opened fixed vanes may be included.
And S140, sending the opening degree of the guide vane of each guide vane to a unit rotating speed controller so as to realize the adjustment of the unit rotating speed and the rapid grid connection operation of the target unit.
In this embodiment, the opening degree of the guide vane is sent to the unit rotating speed controller, and after the unit rotating speed controller receives the opening degree of the guide vane, the unit rotating speed can be adjusted, so that the rapid grid connection of the target unit can be better realized.
Optionally, after the sending the opening of the guide vane of each guide vane to the unit rotating speed controller to adjust the rotating speed of the unit and perform the operation of fast grid connection on the target unit, the method further includes: acquiring a guide vane opening set value corresponding to a target unit speed regulator system after the rapid grid connection is completed; and comparing the guide vane opening set value with a combined guide vane opening set threshold value to determine the guide vane opening corresponding to each guide vane.
The joint guide vane opening setting threshold may include a first joint guide vane opening setting threshold and a second joint guide vane opening setting threshold.
In this embodiment, after the target unit is completed and the grid connection is fast, the set value of the opening degree of the guide vane needs to be obtained. Further, comparing the guide vane opening set value with a combined guide vane opening set threshold value, and determining the guide vane opening corresponding to each guide vane according to the comparison result.
Optionally, the comparing the vane opening setting value with a joint vane opening setting threshold value to determine the vane opening corresponding to each vane includes: if the guide vane opening set value is larger than a first combined guide vane opening set threshold value, adjusting all guide vanes corresponding to the target unit to be in a synchronous state, wherein the guide vane opening corresponding to each guide vane is the same, calculating to obtain the guide vane opening set value through a target unit speed regulator system, and determining the guide vane opening set value as the guide vane opening corresponding to each guide vane; if the guide vane opening set value is smaller than the second combined guide vane opening set threshold value, determining the guide vane opening of each guide vane corresponding to the target unit through a pre-opened guide vane method constructed in advance; the first joint guide vane opening setting threshold value is larger than the second joint guide vane opening setting threshold value.
The first combined guide vane opening setting threshold value may be a preset guide vane opening value that needs to exit the asynchronous guide vane opening state. The second combined guide vane opening setting threshold may be a preset guide vane opening value that needs to reenter an asynchronous guide vane opening state.
For example, assume that the first joint vane opening is set to a threshold of 28% and the first joint vane opening is set to a threshold of 26%.
Specifically, after the rapid grid connection of the target unit is completed, as the load carried by the target unit rises, the set value of the opening degree of the guide vane gradually becomes larger, and when the set value of the opening degree of the guide vane is larger than the set threshold value (28%) of the opening degree of the first combined guide vane, the target unit exits from the asynchronous opening guide vane state. Further, all the guide vanes corresponding to the target unit are required to be adjusted to be in a synchronous state, the opening degrees of the guide vanes corresponding to the guide vanes are the same, a guide vane opening degree set value is calculated through a target unit speed regulator system, and the guide vane opening degree set value is determined to be the guide vane opening degree corresponding to each guide vane.
Correspondingly, after the rapid grid connection of the target unit is completed, as the load carried by the target unit is reduced, the set value of the opening degree of the guide vane is gradually reduced, and when the set value of the opening degree of the guide vane is smaller than the set threshold value (26%) of the opening degree of the second combined guide vane, the opening degree of the guide vane corresponding to the target unit is determined through a pre-opening guide vane method constructed in advance.
Optionally, after the obtaining the set value of the opening degree of the guide vane corresponding to the speed regulator system of the target unit after the rapid grid connection is completed, the method further includes: and if the guide vane opening set value is 0, closing the guide vane opening of each guide vane corresponding to the target unit.
In this embodiment, after the rapid grid connection of the target unit is completed, as the load carried by the target unit decreases, the set value of the opening degree of the guide vane gradually decreases, when the set value of the opening degree of the guide vane becomes 0, the speed regulator system of the target unit sends a command for closing the guide vane, and then the opening degree of the guide vane of each guide vane corresponding to the target unit is closed.
The advantages of this arrangement are that: and determining whether the target unit needs to exit the asynchronous guiding-vane state or reenter the asynchronous guiding-vane state by judging the size relation between the guide vane opening set value and the combined guide vane opening set threshold value, so as to adjust the guide vane opening.
According to the technical scheme, the water head value and the rotating speed of the unit corresponding to the target unit are obtained; if the water head value of the unit is lower than the water head value threshold value and the rotating speed of the unit is higher than the asynchronous opening She Zhuaisu threshold value, selecting two pairs of guide vanes from the plurality of pairs of guide vanes as pre-opening fixed guide vanes, and determining the rest guide vanes as pre-opening dynamic guide vanes; setting the pre-opened fixed guide vane as a fixed guide vane opening degree, and setting the matched dynamic guide vane opening degree of the pre-opened dynamic guide vane according to a dynamic guide vane opening degree calculation formula; and sending the opening degree of the guide vane of each guide vane to a unit rotating speed controller so as to realize the adjustment of the unit rotating speed and the rapid grid connection operation of the target unit. The problem that the water pump and the water turbine in the energy storage unit are easy to enter the working condition of the counter water pump, so that the unit is difficult to grid, the stability of the energy storage unit is improved, and the grid-connected speed and accuracy of the unit are improved.
Example two
Fig. 2 is a schematic structural diagram of a guide vane opening determining device according to a second embodiment of the present invention. The guide vane opening determining device provided by the embodiment of the invention can be realized through software and/or hardware, and can be configured in terminal equipment or a server to realize the guide vane opening determining method in the embodiment of the invention. As shown in fig. 2, the apparatus includes: the system comprises a unit water head value and unit rotating speed acquisition module 210, a pre-opening fixed guide vane and pre-opening dynamic guide vane determining module 220, a fixed guide vane opening and dynamic guide vane opening setting module 230 and a guide vane opening sending module 240.
The unit water head value and unit rotating speed obtaining module 210 is used for obtaining a unit water head value and a unit rotating speed corresponding to a target unit; wherein the target unit comprises a plurality of pairs of guide vanes;
the pre-opening fixed guide vane and pre-opening dynamic guide vane determining module 220 is configured to select two pairs of guide vanes from the plurality of pairs of guide vanes as pre-opening fixed guide vanes and determine the remaining guide vanes as pre-opening dynamic guide vanes if the water head value of the unit is lower than the water head value threshold and the rotational speed of the unit is higher than the asynchronous guide opening She Zhuaisu threshold;
a fixed vane opening and dynamic vane opening setting module 230, configured to set the pre-opened fixed vane as a fixed vane opening, and set the pre-opened dynamic vane as a matched dynamic vane opening according to a dynamic vane opening calculation formula;
The guide vane opening sending module 240 is configured to send the guide vane opening of each guide vane to a unit rotation speed controller, so as to adjust the unit rotation speed and perform a fast grid-connected operation on the target unit.
According to the technical scheme, the water head value and the rotating speed of the unit corresponding to the target unit are obtained; if the water head value of the unit is lower than the water head value threshold value and the rotating speed of the unit is higher than the asynchronous opening She Zhuaisu threshold value, selecting two pairs of guide vanes from the plurality of pairs of guide vanes as pre-opening fixed guide vanes, and determining the rest guide vanes as pre-opening dynamic guide vanes; setting the pre-opened fixed guide vane as a fixed guide vane opening degree, and setting the matched dynamic guide vane opening degree of the pre-opened dynamic guide vane according to a dynamic guide vane opening degree calculation formula; and sending the opening degree of the guide vane of each guide vane to a unit rotating speed controller so as to realize the adjustment of the unit rotating speed and the rapid grid connection operation of the target unit. The problem that the water pump and the water turbine in the energy storage unit are easy to enter the working condition of the counter water pump, so that the unit is difficult to grid, the stability of the energy storage unit is improved, and the grid-connected speed and accuracy of the unit are improved.
Optionally, the fixed vane opening and dynamic vane opening setting module 230 may be specifically configured to: acquiring the water head value of the unit corresponding to the target unit; according to the water head value of the unit, matching with a pre-constructed water head guide vane opening mapping table, and determining the opening of the target guide vane; and determining the opening degree of the target guide vane as the opening degree of the fixed guide vane corresponding to the pre-opened fixed guide vane.
Optionally, the fixed vane opening and dynamic vane opening setting module 230 may be further specifically configured to: acquiring the number of guide vanes of the target unit, the opening degree of the fixed guide vanes and the set value of the opening degree of the guide vanes corresponding to a speed regulator system of the target unit; according to the dynamic guide vane opening degree calculation formula:calculating to obtain the dynamic guide vane opening degree corresponding to the pre-opened dynamic guide vane>The method comprises the steps of carrying out a first treatment on the surface of the Wherein N represents the number of guide vanes of the target unit; n-4 represents the number of the pre-opened dynamic guide vanes; CSC represents a guide vane opening setting value corresponding to a target unit speed regulator system; />Indicating the stay vane opening.
Optionally, the guide vane opening determining module may be specifically configured to: after the set water head value and the set rotating speed corresponding to the target set are obtained, if the set rotating speed is not higher than an asynchronous guide vane opening rotating speed threshold value or the set water head value is not lower than a water head value threshold value, determining that all guide vanes corresponding to the target set are in a synchronous state and the opening degrees of the guide vanes corresponding to all the guide vanes are the same; and calculating a guide vane opening set value through a target unit speed regulator system, and determining the guide vane opening set value as the guide vane opening corresponding to each guide vane.
Optionally, the guide vane opening setting value comparison module may be specifically configured to: after the guide vane opening of each guide vane is sent to a unit rotating speed controller so as to realize the adjustment of the unit rotating speed and the rapid grid connection operation of the target unit, the guide vane opening set value corresponding to the target unit speed regulator system after the rapid grid connection is completed is obtained; and comparing the guide vane opening set value with a combined guide vane opening set threshold value to determine the guide vane opening corresponding to each guide vane.
Optionally, the guide vane opening setting value comparison module may be further specifically configured to: if the guide vane opening set value is larger than a first combined guide vane opening set threshold value, adjusting all guide vanes corresponding to the target unit to be in a synchronous state, wherein the guide vane opening corresponding to each guide vane is the same, calculating to obtain the guide vane opening set value through a target unit speed regulator system, and determining the guide vane opening set value as the guide vane opening corresponding to each guide vane; if the guide vane opening set value is smaller than the second combined guide vane opening set threshold value, determining the guide vane opening of each guide vane corresponding to the target unit through a pre-opened guide vane method constructed in advance; the first joint guide vane opening setting threshold value is larger than the second joint guide vane opening setting threshold value.
Optionally, the guide vane opening closing module may be specifically configured to: and after the obtained guide vane opening set value corresponding to the target unit speed regulator system after the rapid grid connection is completed, closing the guide vane opening of each guide vane corresponding to the target unit if the guide vane opening set value is 0.
The guide vane opening degree determining device provided by the embodiment of the invention can execute the guide vane opening degree determining method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the executing method.
Example III
Fig. 3 shows a schematic diagram of the structure of an electronic device 10 that may be used to implement a third embodiment of the invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Electronic equipment may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 3, the electronic device 10 includes at least one processor 11, and a memory, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., communicatively connected to the at least one processor 11, in which the memory stores a computer program executable by the at least one processor, and the processor 11 may perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 may also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.
Various components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.
The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as the vane opening determination method.
In some embodiments, the vane opening determination method may be implemented as a computer program, which is tangibly embodied on a computer-readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the vane opening determination method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the vane opening determination method by any other suitable means (e.g., by means of firmware).
The method comprises the following steps: acquiring a unit water head value and a unit rotating speed corresponding to a target unit; wherein the target unit comprises a plurality of pairs of guide vanes; if the water head value of the unit is lower than the water head value threshold value and the rotating speed of the unit is higher than the asynchronous opening She Zhuaisu threshold value, selecting two pairs of guide vanes from the plurality of pairs of guide vanes as pre-opening fixed guide vanes, and determining the rest guide vanes as pre-opening dynamic guide vanes; setting the pre-opened fixed guide vane as a fixed guide vane opening degree, and setting the matched dynamic guide vane opening degree of the pre-opened dynamic guide vane according to a dynamic guide vane opening degree calculation formula; and sending the opening degree of the guide vane of each guide vane to a unit rotating speed controller so as to realize the adjustment of the unit rotating speed and the rapid grid connection operation of the target unit.
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Example IV
A fourth embodiment of the present invention also provides a computer readable storage medium containing computer readable instructions, which when executed by a computer processor, are for performing a method of vane opening determination, the method comprising: acquiring a unit water head value and a unit rotating speed corresponding to a target unit; wherein the target unit comprises a plurality of pairs of guide vanes; if the water head value of the unit is lower than the water head value threshold value and the rotating speed of the unit is higher than the asynchronous opening She Zhuaisu threshold value, selecting two pairs of guide vanes from the plurality of pairs of guide vanes as pre-opening fixed guide vanes, and determining the rest guide vanes as pre-opening dynamic guide vanes; setting the pre-opened fixed guide vane as a fixed guide vane opening degree, and setting the matched dynamic guide vane opening degree of the pre-opened dynamic guide vane according to a dynamic guide vane opening degree calculation formula; and sending the opening degree of the guide vane of each guide vane to a unit rotating speed controller so as to realize the adjustment of the unit rotating speed and the rapid grid connection operation of the target unit.
Of course, the embodiments of the present invention provide a computer-readable storage medium, whose computer-executable instructions are not limited to the method operations described above, but may also perform the related operations in the guide vane opening determining method provided by any embodiment of the present invention.
From the above description of embodiments, it will be clear to a person skilled in the art that the present invention may be implemented by means of software and necessary general purpose hardware, but of course also by means of hardware, although in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, etc., and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments of the present invention.
It should be noted that, in the embodiment of the guide vane opening determining device, each unit and module included are only divided according to the functional logic, but not limited to the above division, so long as the corresponding function can be implemented; in addition, the specific names of the functional units are also only for distinguishing from each other, and are not used to limit the protection scope of the present invention.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method of determining a vane opening, comprising:
acquiring a unit water head value and a unit rotating speed corresponding to a target unit; wherein the target unit comprises a plurality of pairs of guide vanes;
if the water head value of the unit is lower than the water head value threshold value and the rotating speed of the unit is higher than the asynchronous opening She Zhuaisu threshold value, selecting two pairs of guide vanes from the plurality of pairs of guide vanes as pre-opening fixed guide vanes, and determining the rest guide vanes as pre-opening dynamic guide vanes;
setting the pre-opened fixed guide vane as a fixed guide vane opening degree, and setting the matched dynamic guide vane opening degree of the pre-opened dynamic guide vane according to a dynamic guide vane opening degree calculation formula;
and sending the opening degree of the guide vane of each guide vane to a unit rotating speed controller so as to realize the adjustment of the unit rotating speed and the rapid grid connection operation of the target unit.
2. The method of claim 1, wherein the setting the pre-opened stay vane to a stay vane opening comprises:
acquiring the water head value of the unit corresponding to the target unit;
according to the water head value of the unit, matching with a pre-constructed water head guide vane opening mapping table, and determining the opening of the target guide vane;
and determining the opening degree of the target guide vane as the opening degree of the fixed guide vane corresponding to the pre-opened fixed guide vane.
3. The method of claim 2, wherein setting the pre-opened dynamic vane to a matched dynamic vane opening according to a dynamic vane opening calculation formula comprises:
acquiring the number of guide vanes of the target unit, the opening degree of the fixed guide vanes and the set value of the opening degree of the guide vanes corresponding to a speed regulator system of the target unit;
according to the dynamic guide vane opening degree calculation formula:
calculating to obtain the dynamic guide vane opening degree corresponding to the pre-opened dynamic guide vane>；
Wherein N represents the number of guide vanes of the target unit; n-4 represents the number of the pre-opened dynamic guide vanes; CSC represents a guide vane opening setting value corresponding to a target unit speed regulator system;indicating the stay vane opening.
4. The method according to claim 3, further comprising, after the obtaining the corresponding unit head value and unit rotation speed of the target unit:
If the rotating speed of the unit is not higher than the asynchronous guide vane opening rotating speed threshold value or the water head value of the unit is not lower than the water head value threshold value, determining that all guide vanes corresponding to the target unit are in a synchronous state and the opening degrees of the guide vanes corresponding to all the guide vanes are the same;
and calculating a guide vane opening set value through a target unit speed regulator system, and determining the guide vane opening set value as the guide vane opening corresponding to each guide vane.
5. The method of claim 4, further comprising, after said sending the vane opening of each vane to a unit speed controller to achieve the adjustment of the unit speed and the fast grid-tie operation of the target unit:
acquiring a guide vane opening set value corresponding to a target unit speed regulator system after the rapid grid connection is completed;
and comparing the guide vane opening set value with a combined guide vane opening set threshold value to determine the guide vane opening corresponding to each guide vane.
6. The method of claim 5, wherein comparing the vane opening setting value with a joint vane opening setting threshold value to determine a vane opening corresponding to each of the vanes comprises:
if the guide vane opening set value is larger than a first combined guide vane opening set threshold value, adjusting all guide vanes corresponding to the target unit to be in a synchronous state, wherein the guide vane opening corresponding to each guide vane is the same, calculating to obtain the guide vane opening set value through a target unit speed regulator system, and determining the guide vane opening set value as the guide vane opening corresponding to each guide vane;
If the guide vane opening set value is smaller than the second combined guide vane opening set threshold value, determining the guide vane opening of each guide vane corresponding to the target unit through a pre-opened guide vane method constructed in advance;
the first joint guide vane opening setting threshold value is larger than the second joint guide vane opening setting threshold value.
7. The method of claim 6, further comprising, after the obtaining the vane opening setting corresponding to the target unit governor system after completing the fast grid-tie:
and if the guide vane opening set value is 0, closing the guide vane opening of each guide vane corresponding to the target unit.
8. A guide vane opening degree determining apparatus, characterized by comprising:
the unit water head value and unit rotating speed acquisition module is used for acquiring a unit water head value and a unit rotating speed corresponding to a target unit; wherein the target unit comprises a plurality of pairs of guide vanes;
the pre-opening fixed guide vane and pre-opening dynamic guide vane determining module is used for selecting two pairs of guide vanes from the pairs of guide vanes as pre-opening fixed guide vanes and determining the rest guide vanes as pre-opening dynamic guide vanes if the water head value of the unit is lower than the water head value threshold value and the rotating speed of the unit is higher than the asynchronous guide opening She Zhuaisu threshold value;
The fixed guide vane opening and dynamic guide vane opening setting module is used for setting the pre-opened fixed guide vane as the fixed guide vane opening and setting the matched dynamic guide vane opening of the pre-opened dynamic guide vane according to a dynamic guide vane opening calculation formula;
the guide vane opening sending module is used for sending the guide vane opening of each guide vane to the unit rotating speed controller so as to realize the adjustment of the unit rotating speed and the rapid grid connection operation of the target unit.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of determining the opening of a vane as claimed in any one of claims 1-7 when executing the computer program.
10. A computer readable storage medium storing computer instructions for causing a processor to perform the method of determining a vane opening as claimed in any one of claims 1 to 7.
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