CN109033651B - Method and system for determining hanging point load by using load broken line working condition combined model - Google Patents
Method and system for determining hanging point load by using load broken line working condition combined model Download PDFInfo
- Publication number
- CN109033651B CN109033651B CN201810868406.XA CN201810868406A CN109033651B CN 109033651 B CN109033651 B CN 109033651B CN 201810868406 A CN201810868406 A CN 201810868406A CN 109033651 B CN109033651 B CN 109033651B
- Authority
- CN
- China
- Prior art keywords
- load
- coefficient
- variable
- current
- information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The embodiment of the invention provides a method and a system for determining a hanging point load by using a load disconnection working condition combined model, which comprises the following steps: presetting hanging point information of a current tower; presetting condition information; according to the hanging point information and the condition information of the current tower, a load disconnection working condition combination model is established, and the load disconnection working condition combination model is used for determining an intermediate calculation result and electric result information corresponding to the disconnection working condition; determining current hanging point information and current condition information according to the design requirements of the current tower; and determining the current intermediate calculation result and the electric result information corresponding to the wire break working condition according to the current hanging point information, the current condition information and the load wire break working condition combined model. According to the invention, the hanging point information and the condition information of the current tower are preset, the load disconnection working condition combination model can be automatically constructed, further, the current intermediate calculation result and the electrical result information corresponding to the disconnection working condition can be accurately determined based on the load disconnection working condition combination model and the design requirements of the current tower, and the analysis processing speed is increased.
Description
Technical Field
The invention relates to the technical field of load disconnection working condition analysis, in particular to a method and a system for determining a hanging point load by using a load disconnection working condition combined model.
Background
The load working condition combination calculation is one of core calculation modules in the power transmission line engineering, and is used for calculating the load combination under the normal operation working condition, the broken line working condition, the uneven icing working condition and the installation working condition of a line, and the rare working conditions such as earthquakes and the like need to be checked and calculated in a necessary fashion.
The description of the combination form of each working condition is distributed in a plurality of groups of national standards and electric power industry design specifications, such as a design manual of high-voltage power transmission lines of electric power engineering; technical provisions for the design of the pole and tower structure of overhead power transmission lines; design specifications for 110kV-750Kv overhead transmission lines; 66Kv and below overhead power line design specifications; technical rules for designing repeated ice overhead transmission lines, and the like.
The combination and calculation of the wire break conditions are extremely complex. The combination form of the wire breaking working conditions has great difference due to different design conditions, and the design conditions comprise: voltage class, number of hanging points and loops, tower type (overhang, strain, terminal), etc.; the calculation of the combination of the wire-breaking working conditions has a very delicate relationship with the number of splits of the terrain, the ice area, the ground wire and the voltage level.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:
the combination of the broken line working conditions is complex, if manual modeling and calculation are carried out, huge manpower and material resource cost is consumed, and omission conditions may exist.
Disclosure of Invention
The embodiment of the invention provides a method and a system for determining a hanging point load by using a load disconnection working condition combined model, which can improve the automation degree of modeling analysis.
In one aspect, an embodiment of the present invention provides a method for determining a hanging point load by using a load disconnection condition combination model, including:
presetting hanging point information of a current tower, wherein the hanging point information comprises all hanging points of the current tower, hanging point attribute information and calculation parameters;
presetting condition information, wherein the condition information comprises a tower type, a voltage grade, meteorological conditions and an applicable ice region;
establishing a load disconnection working condition combination model according to the hanging point information and the condition information of the current tower, wherein the load disconnection working condition combination model is used for determining an intermediate calculation result and electric result information corresponding to the disconnection working condition;
determining current hanging point information and current condition information according to the design requirements of the current tower;
and determining a current intermediate calculation result and electric result information corresponding to the wire breaking working condition according to the current hanging point information, the current condition information and the load wire breaking working condition combined model.
Optionally, the intermediate calculation result includes at least one of a load value, a wind load, a gravity load, a tension and an unbalanced tension of the corresponding hanging point under different working conditions;
and the combined calculation of the working conditions is used for decomposing the wind power, the gravity and the tension borne by the ground wire under different working conditions into the X direction of the transverse load, the Y direction of the longitudinal load and the Z direction of the vertical load.
Optionally, the transverse load, the longitudinal load and the vertical load at the disconnection point are respectively calculated according to the following formulas:
lateral load =0;
longitudinal load =0;
vertical load = permanent polynomial coefficient permanent gravitational load + variable combination coefficient variable polynomial coefficient variable gravitational load.
Optionally, the transverse load, the longitudinal load and the vertical load at the disconnection point are respectively calculated according to the following formulas:
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + unbalanced tension sin (line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + unbalanced tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravitational load + variable combination coefficient variable polynomial coefficient variable gravitational load.
Optionally, the transverse load, the longitudinal load and the vertical load at the disconnection point are respectively calculated according to the following formulas:
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + tension sin (inter-line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravitational load + variable combination coefficient variable polynomial coefficient variable gravitational load.
On the other hand, the embodiment of the invention provides a system for determining a hanging point load by using a load disconnection working condition combined model, which comprises the following steps:
the system comprises a first preset unit and a second preset unit, wherein the first preset unit is used for presetting hanging point information of a current tower, and the hanging point information comprises all hanging points of the current tower, hanging point attribute information and calculation parameters;
the second preset unit is used for presetting condition information, wherein the condition information comprises a tower type, a voltage level, meteorological conditions and an applicable ice area;
the modeling unit is used for establishing a load disconnection working condition combination model according to the hanging point information and the condition information of the current tower, and the load disconnection working condition combination model is used for determining an intermediate calculation result and electric result information corresponding to the disconnection working condition;
the analysis unit is used for determining current hanging point information and current condition information according to the design requirement of the current tower;
and the determining unit is used for determining the current intermediate calculation result and the electric result information corresponding to the disconnection working condition according to the current hanging point information, the current condition information and the load disconnection working condition combined model.
Optionally, the intermediate calculation result includes at least one of a load value, a wind load, a gravity load, a tension and an unbalanced tension of the corresponding hanging point under different working conditions;
and the combined calculation under the working conditions is used for decomposing the wind power, the gravity and the tension born by the ground wire under different working conditions into the direction of transverse load X, the direction of longitudinal load Y and the direction of vertical load Z.
Optionally, the transverse load, the longitudinal load, and the vertical load at the disconnection point are respectively calculated according to the following formulas:
lateral load =0;
longitudinal load =0;
vertical load = permanent polynomial coefficient permanent gravity load + variable combination coefficient variable polynomial coefficient variable gravity load.
Optionally, the transverse load, the longitudinal load and the vertical load at the disconnection point are respectively calculated according to the following formulas:
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + unbalanced tension sin (line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + unbalanced tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravity load + variable combination coefficient variable polynomial coefficient variable gravity load.
Optionally, the transverse load, the longitudinal load, and the vertical load at the disconnection point are respectively calculated according to the following formulas:
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + tension sin (line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravity load + variable combination coefficient variable polynomial coefficient variable gravity load.
On the other hand, the embodiment of the invention provides a system for determining a hanging point load by using a load disconnection working condition combined model, which comprises the following steps:
a processor; and
a memory arranged to store computer executable instructions that, when executed, cause the processor to:
presetting hanging point information of a current tower, wherein the hanging point information comprises all hanging points of the current tower, hanging point attribute information and calculation parameters;
presetting condition information, wherein the condition information comprises a tower type, a voltage grade, meteorological conditions and an applicable ice area;
establishing a load disconnection working condition combination model according to the hanging point information and the condition information of the current tower, wherein the load disconnection working condition combination model is used for determining an intermediate calculation result and electric result information corresponding to the disconnection working condition;
determining current hanging point information and current condition information according to the design requirements of the current tower;
and determining a current intermediate calculation result and electric result information corresponding to the wire breaking working condition according to the current hanging point information, the current condition information and the load wire breaking working condition combined model.
In another aspect, an embodiment of the present invention provides a computer-readable storage medium storing one or more programs that, when executed by an electronic device including a plurality of application programs, cause the electronic device to perform operations of:
presetting hanging point information of a current tower, wherein the hanging point information comprises all hanging points of the current tower, hanging point attribute information and calculation parameters;
presetting condition information, wherein the condition information comprises a tower type, a voltage grade, meteorological conditions and an applicable ice area;
establishing a load disconnection working condition combination model according to the hanging point information and the condition information of the current tower, wherein the load disconnection working condition combination model is used for determining an intermediate calculation result and electric result information corresponding to the disconnection working condition;
determining current hanging point information and current condition information according to the design requirements of the current tower;
and determining a current intermediate calculation result and electric result information corresponding to the wire breaking working condition according to the current hanging point information, the current condition information and the load wire breaking working condition combined model.
The technical scheme has the following beneficial effects:
according to the invention, the hanging point information and the condition information of the current tower are preset, the load disconnection working condition combination model can be automatically constructed, further, the current intermediate calculation result and the electrical result information corresponding to the disconnection working condition can be accurately determined based on the load disconnection working condition combination model and the design requirements of the current tower, and the analysis processing speed is increased.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a method of determining a hang point load using a load break condition combination model of the present invention;
FIG. 2 is an exploded view of the point loads in the direction X, Y, Z;
FIG. 3 is a schematic block diagram of a system for determining a hanging point load using a combined model of load and disconnection conditions according to the present invention.
Description of the symbols:
the system comprises a first preset unit-1, a second preset unit-2, a modeling unit-3, an analysis unit-4 and a determination unit-5.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a method for determining a hanging point load by using a load and disconnection working condition combined model, which can automatically construct the load and disconnection working condition combined model by presetting hanging point information and condition information of a current tower, further accurately determine a current intermediate calculation result and electrical result information corresponding to the disconnection working condition based on the load and disconnection working condition combined model and the design requirements of the current tower, and improve the analysis processing speed.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the method for determining the load of the hanging point by using the load break condition combination model of the present invention includes:
step 100: and presetting hanging point information of the current tower.
The hanging point information comprises all hanging points of the current tower, hanging point attribute information and calculation parameters. The calculation parameters are span, ground wire and the like.
Step 200: and presetting condition information.
The condition information includes tower type, voltage level, weather conditions and applicable ice region. Wherein, the tower type is divided into overhang, strain and terminal.
Step 300: and establishing a load broken line working condition combination model according to the hanging point information and the condition information of the current tower.
And the load disconnection working condition combination model is used for determining the intermediate calculation result and the electric result information corresponding to the disconnection working condition.
Step 400: and determining the current hanging point information and the current condition information according to the design requirement of the current tower.
Step 500: and determining a current intermediate calculation result and electric result information corresponding to the wire breaking working condition according to the current hanging point information, the current condition information and the load wire breaking working condition combined model.
The intermediate calculation result comprises at least one of load values of corresponding hanging points under different working conditions, wind load, gravity load, tension and unbalanced tension;
and the combined calculation of the working conditions is used for decomposing the wind power, the gravity and the tension borne by the ground wire under different working conditions into the X direction of the transverse load, the Y direction of the longitudinal load and the Z direction of the vertical load.
FIG. 2 is an exploded view of the loads at each point in the X, Y, Z directions.
Specifically, the transverse load, the longitudinal load and the vertical load at the disconnection point can be calculated according to the following three ways:
mode (1):
lateral load =0;
longitudinal load =0;
vertical load = permanent polynomial coefficient permanent gravitational load + variable combination coefficient variable polynomial coefficient variable gravitational load.
Mode (2):
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + unbalanced tension sin (line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + unbalanced tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravitational load + variable combination coefficient variable polynomial coefficient variable gravitational load.
Mode (3):
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + tension sin (inter-line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravitational load + variable combination coefficient variable polynomial coefficient variable gravitational load.
The following is an example of line break condition combination constraints in 66Kv and the following overhead power line design specifications GB 50061-2010:
the following load combinations should be calculated for the broken line working condition of the linear tower:
(1) Single-loop and double-loop pole tower with 1 broken lead and uninterrupted ground wire
(2) Multi-loop tower, 2 leads and ground wires with same gear and different phases are not broken
(3) 1 broken ground wire and lead wire are not broken
The following load combinations should be calculated for the line breaking condition of the strain tower:
(1) A single-loop tower, which cuts off a 2-phase lead at the same gear; the number of the same-gear broken wires of the double-loop or multi-loop tower is 1/3 of the number of all the wires on the tower; the terminal tower is broken, the remaining two-phase lead and the earth wire are not broken
(2) 1 broken ground wire and a lead are not broken.
By arranging various regulations and specifications, a combined model of the wire breaking working condition is established as shown in table 1:
TABLE 1
According to the model, the current broken line working condition combination is automatically combined, and the name of the Chinese character is used for marking.
In addition, the invention also provides a system for determining the hanging point load by using the load disconnection working condition combined model, which can improve the automation degree of modeling analysis.
As shown in fig. 3, the system for determining the load of the hanging point by using the load disconnection working condition combination model of the invention comprises: the device comprises a first presetting unit 1, a second presetting unit 2, a modeling unit 3, an analyzing unit 4 and a determining unit 5.
The first preset unit 1 is used for presetting hanging point information of the current tower. The hanging point information comprises all hanging points of the current tower, hanging point attribute information and calculation parameters.
The second preset unit 2 is used for presetting condition information. The condition information includes tower type, voltage level, weather conditions and applicable ice region.
And the modeling unit 3 is used for establishing a load disconnection working condition combination model according to the hanging point information and the condition information of the current tower. And the load disconnection working condition combination model is used for determining the intermediate calculation result and the electric result information corresponding to the disconnection working condition.
And the analysis unit 4 is used for determining the current hanging point information and the current condition information according to the design requirement of the current tower.
And the determining unit 5 is used for determining the current intermediate calculation result and the electric result information corresponding to the wire breaking working condition according to the current hanging point information, the current condition information and the load wire breaking working condition combination model.
The intermediate calculation result comprises at least one of load values of corresponding hanging points under different working conditions, wind load, gravity load, tension and unbalanced tension;
and the combined calculation of the working conditions is used for decomposing the wind power, the gravity and the tension borne by the ground wire under different working conditions into the X direction of the transverse load, the Y direction of the longitudinal load and the Z direction of the vertical load.
FIG. 2 is an exploded view of the loads at each point in the X, Y, Z directions.
Specifically, the transverse load, the longitudinal load and the vertical load at the disconnection point can be calculated according to the following three ways:
mode (1):
lateral load =0;
longitudinal load =0;
vertical load = permanent polynomial coefficient permanent gravitational load + variable combination coefficient variable polynomial coefficient variable gravitational load.
Mode (2):
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + unbalanced tension sin (line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + unbalanced tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravitational load + variable combination coefficient variable polynomial coefficient variable gravitational load.
Mode (3):
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + tension sin (line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravity load + variable combination coefficient variable polynomial coefficient variable gravity load.
Further, the present invention also provides a system for determining a hanging point load by using a load disconnection working condition combination model, comprising:
a processor; and
a memory arranged to store computer executable instructions that, when executed, cause the processor to:
presetting hanging point information of a current tower, wherein the hanging point information comprises all hanging points of the current tower, hanging point attribute information and calculation parameters;
presetting condition information, wherein the condition information comprises a tower type, a voltage grade, meteorological conditions and an applicable ice area;
establishing a load disconnection working condition combination model according to the hanging point information and the condition information of the current tower, wherein the load disconnection working condition combination model is used for determining an intermediate calculation result and electric result information corresponding to the disconnection working condition;
determining current hanging point information and current condition information according to the design requirements of the current tower;
and determining a current intermediate calculation result and electric result information corresponding to the wire breaking working condition according to the current hanging point information, the current condition information and the load wire breaking working condition combined model.
Furthermore, the present invention also provides a computer-readable storage medium storing one or more programs that, when executed by an electronic device including a plurality of application programs, cause the electronic device to perform operations of:
presetting hanging point information of a current tower, wherein the hanging point information comprises all hanging points of the current tower, hanging point attribute information and calculation parameters;
presetting condition information, wherein the condition information comprises a tower type, a voltage grade, meteorological conditions and an applicable ice area;
establishing a load disconnection working condition combination model according to the hanging point information and the condition information of the current tower, wherein the load disconnection working condition combination model is used for determining an intermediate calculation result and electric result information corresponding to the disconnection working condition;
determining current hanging point information and current condition information according to the design requirements of the current tower;
and determining a current intermediate calculation result and electric result information corresponding to the disconnection working condition according to the current hanging point information, the current condition information and the load disconnection working condition combined model.
Compared with the prior art, the system and the computer-readable storage medium for determining the hanging point load by using the load disconnection working condition combined model have the same beneficial effects as the method for determining the hanging point load by using the load disconnection working condition combined model, and are not repeated herein.
It should be understood that the specific order or hierarchy of steps in the processes disclosed is an example of exemplary approaches. Based upon design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not meant to be limited to the specific order or hierarchy presented.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. To those skilled in the art; various modifications to these embodiments will be readily apparent, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".
Those of skill in the art will further appreciate that the various illustrative logical blocks, units, and steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate the interchangeability of hardware and software, various illustrative components, elements, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present embodiments.
The various illustrative logical blocks, or elements, described in connection with the embodiments disclosed herein may be implemented or performed with a general purpose processor, a digital signal processor, an Application Specific Integrated Circuit (ASIC), a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. For example, a storage medium may be coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC, which may be located in a user terminal. In the alternative, the processor and the storage medium may reside in different components in a user terminal.
In one or more exemplary designs, the functions described above in connection with the embodiments of the invention may be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media that facilitate transfer of a computer program from one place to another. Storage media may be any available media that can be accessed by a general purpose or special purpose computer. For example, such computer-readable media can comprise, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store program code in the form of instructions or data structures and that can be read by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Additionally, any connection is properly termed a computer-readable medium, and, thus, is included if the software is transmitted from a website, server, or other remote source via a coaxial cable, fiber optic cable, twisted pair, digital Subscriber Line (DSL), or wirelessly, e.g., infrared, radio, and microwave. Such discs (disk) and disks (disc) include compact disks, laser disks, optical disks, DVDs, floppy disks and blu-ray disks, where magnetic discs generally reproduce data magnetically, while disks generally reproduce data optically with lasers. Combinations of the above may also be included in the computer-readable medium.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A method for determining a hanging point load by using a load disconnection working condition combined model is characterized by comprising the following steps:
presetting hanging point information of a current tower, wherein the hanging point information comprises all hanging points of the current tower, hanging point attribute information and calculation parameters;
presetting condition information, wherein the condition information comprises a tower type, a voltage grade, meteorological conditions and an applicable ice area;
establishing a load disconnection working condition combination model according to the hanging point information and the condition information of the current tower, wherein the load disconnection working condition combination model is used for determining an intermediate calculation result and electric result information corresponding to the disconnection working condition;
determining current hanging point information and current condition information according to the design requirements of the current tower;
determining a current intermediate calculation result and electric result information corresponding to the wire breaking working condition according to the current hanging point information, the current condition information and the load wire breaking working condition combination model;
the intermediate calculation result comprises at least one of load values, wind loads, gravity loads, tension and unbalanced tension of corresponding hanging points under different working conditions;
the combined calculation under the working conditions is used for decomposing the wind power, the gravity and the tension borne by the ground wire under different working conditions into the X direction of the transverse load, the Y direction of the longitudinal load and the Z direction of the vertical load;
respectively calculating the transverse load, the longitudinal load and the vertical load at the disconnection point according to the following formulas:
transverse load =0;
longitudinal load =0;
vertical load = permanent polynomial coefficient permanent gravity load + variable combination coefficient variable polynomial coefficient variable gravity load;
respectively calculating the transverse load, the longitudinal load and the vertical load at the disconnection point according to the following formulas:
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + unbalanced tension sin (line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + unbalanced tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravity load + variable combination coefficient variable polynomial coefficient variable gravity load;
respectively calculating the transverse load, the longitudinal load and the vertical load at the disconnection point according to the following formulas:
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + tension sin (inter-line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravity load + variable combination coefficient variable polynomial coefficient variable gravity load.
2. A system for determining a hanging point load by using a load disconnection working condition combined model is characterized by comprising the following steps:
the system comprises a first preset unit, a second preset unit and a third preset unit, wherein the first preset unit is used for presetting hanging point information of a current tower, and the hanging point information comprises all hanging points of the current tower, hanging point attribute information and calculation parameters;
the second preset unit is used for presetting condition information, wherein the condition information comprises a tower type, a voltage level, meteorological conditions and an applicable ice area;
the modeling unit is used for establishing a load disconnection working condition combined model according to the hanging point information and the condition information of the current tower, and the load disconnection working condition combined model is used for determining an intermediate calculation result and electric result information corresponding to the disconnection working condition;
the analysis unit is used for determining current hanging point information and current condition information according to the design requirement of the current tower;
the determining unit is used for determining a current intermediate calculation result and electric result information corresponding to the wire breaking working condition according to the current hanging point information, the current condition information and the load wire breaking working condition combination model;
the intermediate calculation result comprises at least one of load values, wind loads, gravity loads, tension and unbalanced tension of corresponding hanging points under different working conditions;
the combined calculation under the working conditions is used for decomposing the wind power, the gravity and the tension borne by the ground wire under different working conditions into the X direction of the transverse load, the Y direction of the longitudinal load and the Z direction of the vertical load;
respectively calculating the transverse load, the longitudinal load and the vertical load at the disconnection point according to the following formulas:
lateral load =0;
longitudinal load =0;
vertical load = permanent polynomial coefficient permanent gravity load + variable combination coefficient variable polynomial coefficient variable gravity load;
respectively calculating the transverse load, the longitudinal load and the vertical load at the disconnection point according to the following formulas:
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + unbalanced tension sin (line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + unbalanced tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravity load + variable combination coefficient variable polynomial coefficient variable gravity load;
respectively calculating the transverse load, the longitudinal load and the vertical load at the broken line point according to the following formulas:
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + tension sin (inter-line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravitational load + variable combination coefficient variable polynomial coefficient variable gravitational load.
3. A system for determining a hanging point load by using a load disconnection working condition combined model is characterized by comprising the following steps:
a processor; and
a memory arranged to store computer executable instructions that, when executed, cause the processor to:
presetting hanging point information of a current tower, wherein the hanging point information comprises all hanging points of the current tower, hanging point attribute information and calculation parameters;
presetting condition information, wherein the condition information comprises a tower type, a voltage grade, meteorological conditions and an applicable ice area;
establishing a load disconnection working condition combination model according to the hanging point information and the condition information of the current tower, wherein the load disconnection working condition combination model is used for determining an intermediate calculation result and electric result information corresponding to the disconnection working condition;
determining current hanging point information and current condition information according to the design requirements of the current tower;
determining a current intermediate calculation result and electric result information corresponding to the wire breaking working condition according to the current hanging point information, the current condition information and the load wire breaking working condition combined model;
the intermediate calculation result comprises at least one of load values, wind loads, gravity loads, tension and unbalanced tension of corresponding hanging points under different working conditions;
the combined calculation under the working conditions is used for decomposing the wind power, the gravity and the tension borne by the ground wire under different working conditions into the X direction of the transverse load, the Y direction of the longitudinal load and the Z direction of the vertical load;
respectively calculating the transverse load, the longitudinal load and the vertical load at the disconnection point according to the following formulas:
lateral load =0;
longitudinal load =0;
vertical load = permanent polynomial coefficient permanent gravity load + variable combination coefficient variable polynomial coefficient variable gravity load;
respectively calculating the transverse load, the longitudinal load and the vertical load at the broken line point according to the following formulas:
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + unbalanced tension sin (line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + unbalanced tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravity load + variable combination coefficient variable polynomial coefficient variable gravity load;
respectively calculating the transverse load, the longitudinal load and the vertical load at the broken line point according to the following formulas:
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + tension sin (inter-line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravitational load + variable combination coefficient variable polynomial coefficient variable gravitational load.
4. A computer-readable storage medium storing one or more programs which, when executed by an electronic device including a plurality of application programs, cause the electronic device to:
presetting hanging point information of a current tower, wherein the hanging point information comprises all hanging points of the current tower, hanging point attribute information and calculation parameters;
presetting condition information, wherein the condition information comprises a tower type, a voltage grade, meteorological conditions and an applicable ice area;
establishing a load disconnection working condition combination model according to the hanging point information and the condition information of the current tower, wherein the load disconnection working condition combination model is used for determining an intermediate calculation result and electric result information corresponding to the disconnection working condition;
determining current hanging point information and current condition information according to the design requirements of the current tower;
determining a current intermediate calculation result and electric result information corresponding to the wire breaking working condition according to the current hanging point information, the current condition information and the load wire breaking working condition combination model;
the intermediate calculation result comprises at least one of load values, wind loads, gravity loads, tension and unbalanced tension of corresponding hanging points under different working conditions;
the combined calculation under the working conditions is used for decomposing the wind power, the gravity and the tension borne by the ground wire under different working conditions into the X direction of the transverse load, the Y direction of the longitudinal load and the Z direction of the vertical load;
respectively calculating the transverse load, the longitudinal load and the vertical load at the disconnection point according to the following formulas:
lateral load =0;
longitudinal load =0;
vertical load = permanent polynomial coefficient permanent gravity load + variable combination coefficient variable polynomial coefficient variable gravity load;
respectively calculating the transverse load, the longitudinal load and the vertical load at the broken line point according to the following formulas:
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + unbalanced tension sin (line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + unbalanced tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravity load + variable combination coefficient variable polynomial coefficient variable gravity load;
respectively calculating the transverse load, the longitudinal load and the vertical load at the broken line point according to the following formulas:
transverse load = variable combination coefficient variable component coefficient (X-direction wind load coefficient wind load + tension sin (line angle));
longitudinal load = variable combined coefficient variable fractional coefficient (Y-direction wind load coefficient wind load + tension force cos (line angle));
vertical load = permanent polynomial coefficient permanent gravity load + variable combination coefficient variable polynomial coefficient variable gravity load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810868406.XA CN109033651B (en) | 2018-08-02 | 2018-08-02 | Method and system for determining hanging point load by using load broken line working condition combined model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810868406.XA CN109033651B (en) | 2018-08-02 | 2018-08-02 | Method and system for determining hanging point load by using load broken line working condition combined model |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109033651A CN109033651A (en) | 2018-12-18 |
| CN109033651B true CN109033651B (en) | 2023-03-31 |
Family
ID=64647926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810868406.XA Active CN109033651B (en) | 2018-08-02 | 2018-08-02 | Method and system for determining hanging point load by using load broken line working condition combined model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109033651B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111737852B (en) * | 2020-05-20 | 2022-07-05 | 中国电力工程顾问集团西南电力设计院有限公司 | Tower load calculation method based on digitization technology |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866395B (en) * | 2010-05-27 | 2013-01-02 | 中国电力科学研究院 | Method for calculating load of hanging point of power transmission line tower during conductor galloping |
| CN103218499A (en) * | 2013-05-03 | 2013-07-24 | 国家电网公司 | Method of line waving load risk modeling |
| CN104533131B (en) * | 2014-11-24 | 2017-01-11 | 国家电网公司 | Design method of guyed tower for ultrahigh voltage +/-800kV engineering |
| CN107644135B (en) * | 2017-09-22 | 2020-12-11 | 中国电力工程顾问集团西南电力设计院有限公司 | Method for forming load combination |
-
2018
- 2018-08-02 CN CN201810868406.XA patent/CN109033651B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109033651A (en) | 2018-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204428838U (en) | Containing the electronic building blocks of programming building block module | |
| CN109101710B (en) | Computing device and method for mechanical parameters of inclined suspension tubular busbar | |
| US20190004781A1 (en) | Application push method, and a service device | |
| CN105138777A (en) | Pole tower model selection method and device | |
| CN102129484A (en) | Method and device for generating digitalized flat cross-section diagram of transmission line | |
| CN109033651B (en) | Method and system for determining hanging point load by using load broken line working condition combined model | |
| CN109670091B (en) | Metadata intelligent maintenance method and device based on data standard | |
| CN109298289A (en) | Localization method, system and the electronic equipment of distribution network failure point | |
| CN102684134A (en) | Lightning protection system of extra-high voltage alternating current double-circuit straight-line tower | |
| CN114417487B (en) | Power distribution network tower structure optimization method and device | |
| CN116070383A (en) | Main wiring diagram automatic generation method based on virtual loop connection relation | |
| CN116108598A (en) | Power transmission line design evaluation method, device and computer equipment | |
| CN113030648A (en) | Method and device for determining position of fault point of power cable and terminal equipment | |
| CN202564903U (en) | Lightning protection system of extra-high voltage alternating current double-loop tangent tower | |
| CN109685769B (en) | Method and device for adjusting phase spacing of wires | |
| CN110033189B (en) | Method, device and equipment for automatically generating fiber core segment | |
| CN201935977U (en) | Detecting instrument of cores of secondary cables | |
| CN204928509U (en) | Winding former for motor | |
| CN110569404A (en) | data comparison method and device, electronic equipment and storage medium | |
| CN109002594B (en) | Processing method for iterative calculation of wind load increasing coefficient of self-supporting iron tower body | |
| CN204086312U (en) | A kind of car load testing current electric current voltage conversion device | |
| CN110727907B (en) | Calculation method for tree felling range below power transmission line | |
| CN112163057A (en) | Method and device for determining height of tower, electronic equipment and medium | |
| CN203722198U (en) | Processing system for crossover of power line, communication line, and broadcast line | |
| Zhang et al. | Research on the non-contact early warning of dangerous electric field by overhead transmission lines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Room 262, building 1, No. 11, Deshengmenwai street, Xicheng District, Beijing 100088 Applicant after: Beijing Daoheng Software Co.,Ltd. Address before: Room 805, 8th floor, Congyuan building, No. 95, Qinghe 3rd Street, Haidian District, Beijing 100085 Applicant before: BEIJING DAOPOWER TIMES TECHNOLOGY CO.,LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |