CN113178870B - Fixed value setting method, device, equipment and storage medium of power system - Google Patents

Fixed value setting method, device, equipment and storage medium of power system Download PDF

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Publication number
CN113178870B
CN113178870B CN202110317696.0A CN202110317696A CN113178870B CN 113178870 B CN113178870 B CN 113178870B CN 202110317696 A CN202110317696 A CN 202110317696A CN 113178870 B CN113178870 B CN 113178870B
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file
load
power flow
related part
initial
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CN113178870A (en
Inventor
叶萌
谢宇翔
赵宏伟
李诗旸
李晶
付超
陈志聪
朱泽翔
尚惠玉
吴为
刘婷
杨荣照
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CSG Electric Power Research Institute
Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
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CSG Electric Power Research Institute
Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
    • H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • H02J3/144—Demand-response operation of the power transmission or distribution network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/40—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation wherein a plurality of decentralised, dispersed or local energy generation technologies are operated simultaneously
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving

Abstract

The invention discloses a fixed value setting method, a fixed value setting device, a fixed value setting equipment and a fixed value setting storage medium of a power system.A load point information of an initial power flow file is divided into different parts, the different parts contain different information of the power flow file, the adjustment can be conveniently carried out aiming at the different information of the power flow file, and the different parts after the adjustment of the initial power flow file are recombined to obtain a new power flow file; the method comprises the steps of adjusting an initial stable file according to an initial power flow file and a new power flow file to obtain a new stable file, performing power system stability calculation according to the new power flow file and the new stable file to obtain a stability calculation result, generating a constant value setting scheme of a power system, adjusting the power system according to the generated constant value setting scheme, and maintaining the stability of the power system. The method can quickly generate the required calculation file, greatly accelerate the setting speed and improve the setting quality.

Description

Fixed value setting method, device, equipment and storage medium of power system
Technical Field
The invention relates to the technical field of power system fixed value setting, in particular to a fixed value setting method, a fixed value setting device, fixed value setting equipment and a storage medium of a power system.
Background
In recent years, along with interconnection of power systems, the scale of the power systems is increasing, the possible stability problems are also increasing, a stability control technology needs to be applied to ensure stable operation of the systems, and a key point for realizing the technology is a stability control device.
The stability control device can act to cut off abnormal loads or abnormal units under the abnormal condition of the power system, ensures the stability of the system and has the advantages of strong pertinence and high reliability. However, the process of maintaining the system stability by the stability control device depends on setting of a fixed value, and stability calculation needs to be performed by using simulation software, and the process is based on a load flow file and a stability file, wherein the load flow file is used for calculating static load flow distribution, and the stability file is used for calculating the stability condition of the system after an accident action. The fixed value setting is suitable for various load levels, so that the cutting amount of the tidal current file and the stable file at each load level can be obtained by repeatedly adjusting and trying, the workload of the fixed value setting adjustment is very heavy, and the manual adjustment speed and precision can not meet the urgent requirements.
Disclosure of Invention
Aiming at the defects of the prior art, the method, the device, the equipment and the storage medium for setting the fixed value of the power system can be used for quickly setting the fixed value of the calculation file according to actual needs, and provide reliable support for stable operation of the power system.
The embodiment of the invention provides a fixed value setting method of a power system, which comprises the following steps:
acquiring an initial power flow file and an initial stable file of a power system, and dividing the initial power flow file into different parts according to load point information of the initial power flow file;
adjusting different parts of the division of the initial power flow file respectively;
different parts of the adjusted initial power flow file are recombined to obtain a new power flow file;
adjusting the initial stable file according to the initial power flow file and the new power flow file to generate a new stable file;
and performing power system stability calculation according to the new power flow file and the new stability file to obtain a stability calculation result, generating a constant value setting scheme of the power system, and setting the power system according to the constant value setting scheme.
Preferably, the dividing the initial power flow file into different parts according to the load point information of the initial power flow file specifically includes: and dividing the initial power flow file into a head related part, a tail related part, a load related part and a unit related part according to the load point information.
Further, the adjusting different parts of the divided initial power flow file respectively includes:
adjusting the load-related part, and increasing or decreasing the load quantity of the load-related part by taking the basic mode load as a reference;
the related part of the unit changes the output of the unit along with the adjustment of the related part of the load:
when the load quantity of the load related part is increased, the unit related part increases the unit output;
and when the load related part reduces the load amount, the unit related part reduces the unit output.
Preferably, the adjusting the initial stable file according to the initial power flow file and the new power flow file to generate a new stable file specifically includes:
generating a cuttable load according to the new trend file;
generating load shedding information of the load shedding amount according to the load point information and the load shedding amount information;
and merging the load shedding information into the initial stable file to generate the new stable file.
Another embodiment of the present invention provides a fixed value setting device for an electric power system, including: the device comprises a file obtaining and dividing module, a power flow file adjusting module, a new power flow file merging module, a new stable file generating module and a constant value setting module; wherein, the first and the second end of the pipe are connected with each other,
the file obtaining and dividing module is used for obtaining an initial power flow file and an initial stable file of the power system and dividing the initial power flow file into different parts according to the load point information of the initial power flow file;
the power flow file adjusting module is used for adjusting different parts of the initial power flow file division respectively;
the new power flow file merging module is used for recombining different parts of the adjusted initial power flow file to obtain a new power flow file;
the new stable file generating module is used for adjusting the initial stable file according to the initial trend file and the new trend file to generate a new stable file;
the fixed value setting module is used for performing power system stability calculation according to the new power flow file and the new stability file to obtain a stability calculation result, generating a fixed value setting scheme of the power system, and setting the power system according to the fixed value setting scheme.
As a preferred mode, the file acquiring and dividing unit comprises a file dividing unit;
the file dividing unit is specifically configured to: and dividing the initial power flow file into a head related part, a tail related part, a load related part and a unit related part according to the load point information.
Further, the power flow file adjusting module is specifically configured to:
adjusting the load-related part, and increasing or decreasing the load quantity of the load-related part by taking the basic mode load as a reference;
the related part of the unit changes the output of the unit along with the adjustment of the related part of the load:
when the load related part increases the load capacity, the unit related part increases the unit output;
and when the load related part reduces the load amount, the unit related part reduces the unit output.
As a preferred mode, the new trend file merging module is specifically configured to:
generating a cuttable load according to the new trend file;
generating load shedding information of the load shedding amount according to the load point information and the load shedding amount information;
and merging the load shedding information into the initial stable file to generate the new stable file.
A further embodiment of the present invention provides a terminal device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements a method for setting a fixed value of an electric power system according to any one of the above embodiments when executing the computer program.
A further embodiment of the present invention provides a computer-readable storage medium, which includes a stored computer program, wherein when the computer program runs, a device in which the computer-readable storage medium is located is controlled to execute a method for setting a fixed value of a power system according to any one of the above embodiments.
According to the method, the device, the equipment and the storage medium for setting the fixed value of the power system, the initial power flow file is divided into different parts according to the load point information of the initial power flow file, the different parts contain different information of the power flow file, adjustment can be conveniently carried out on the different information of the power flow file, the different parts after the adjustment of the initial power flow file are recombined, and a new power flow file is obtained; the method comprises the steps of adjusting an initial stable file according to an initial power flow file and a new power flow file to obtain a new stable file, performing power system stability calculation according to the new power flow file and the new stable file to obtain a stability calculation result, generating a constant value setting scheme of a power system, adjusting the power system according to the generated constant value setting scheme, and maintaining the stability of the power system. The method can quickly generate the required calculation file, greatly accelerate the setting speed and improve the setting quality.
Drawings
Fig. 1 is a schematic flow chart of a fixed value setting method for an electric power system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a fixed value setting device of an electric power system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
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 obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
Referring to fig. 1, a schematic flow chart of a fixed value setting method of an electric power system according to an embodiment of the present invention is shown, where the method includes steps S101 to S105;
s101, acquiring an initial power flow file and an initial stable file of a power system, and dividing the initial power flow file into different parts according to load point information of the initial power flow file;
s102, adjusting different parts of the initial power flow file division respectively;
s103, recombining different parts of the adjusted initial power flow file to obtain a new power flow file;
s104, adjusting the initial stable file according to the initial power flow file and the new power flow file to generate a new stable file;
and S105, performing power system stability calculation according to the new power flow file and the new stability file to obtain a stability calculation result, generating a constant value setting scheme of the power system, and setting the power system according to the constant value setting scheme.
When the embodiment is specifically implemented, an initial power flow file and an initial stabilization file which are used for setting a fixed value of a power system are firstly acquired, the initial power flow file is divided into different parts according to load point information in the initial power flow information, and each part comprises different information of the initial power flow file;
adjusting different divided parts of the initial power flow file, wherein the different divided parts are convenient to adjust aiming at different information of the initial power flow file;
different parts of the adjusted initial power flow file are recombined to obtain a new power flow file;
on the basis of the generated new trend file, the initial stable file is adjusted by combining the initial trend file to generate a new stable file;
adjusting the initial stable file according to the generated new power flow file and the initial power flow file to generate a new stable file;
and performing power system stability calculation according to the generated new power flow file and the new stability file to obtain a stability calculation result, generating a constant value setting scheme of the power system, and adjusting the power system according to the generated constant value setting scheme to maintain the stability of the power system.
It should be noted that, adjusting the parameter setting of the power system according to the constant value setting method specifically includes: the load shedding distribution, the load shedding priority and the balance unit allocation of the power system are adjusted, and the stability of the power system is kept.
In another embodiment provided by the present invention, in step S102, the dividing the initial power flow file into different parts according to the load point information of the initial power flow file specifically includes: and dividing the initial power flow file into a head related part, a tail related part, a load related part and a unit related part according to the load point information.
In specific implementation of this embodiment, according to the load point information in the initial power flow file, the initial power flow file is divided into a head related part, a tail related part, a load related part and a unit related part, where each part includes different information of the initial power flow file, and the load related part and the unit related part include load corresponding information and unit corresponding information, respectively.
The load corresponding information and the unit corresponding information are respectively concentrated in different parts, so that the processing is convenient, and the information processing amount in the processing process is reduced.
In another embodiment provided by the present invention, step S103 specifically includes:
adjusting the load-related part, and increasing or decreasing the load quantity of the load-related part by taking the basic mode load as a reference;
the related part of the unit changes the output of the unit along with the adjustment of the related part of the load:
when the load quantity of the load related part is increased, the unit related part increases the unit output;
and when the load related part reduces the load amount, the unit related part reduces the unit output.
When the embodiment is implemented specifically, the relevant parts of the initial power flow file which conform to the original power flow file are adjusted, and the load quantity of the relevant parts of the load is increased or reduced by taking the basic mode load as a reference;
the related part of the set of the initial tide file changes the output of the set along with the adjustment of the load quantity of the related part of the set, namely: when the load related part increases the load capacity, the unit related part increases the unit output; and when the load related part reduces the load amount, the unit related part reduces the unit output.
According to different parts divided by the initial power flow file, the divided load related parts and the unit related parts are adjusted, the unit output of the unit related parts is changed along with the load of the load related parts, the load and the unit output are balanced, and the balance of a power system is kept.
In another embodiment of the present invention, the adjusting the initial stable file according to different parts of the adjusted initial power flow file to generate a new stable file specifically includes:
generating a cuttable load according to the new trend file;
generating load shedding information of the load shedding amount according to the load point information and the load shedding amount information;
and merging the load shedding information into the initial stable file to generate the new stable file.
When the embodiment is implemented specifically, the cuttable load amount is generated according to the adjusted load related information in the new load flow file;
generating load shedding information of the cuttable load according to the generated cuttable load and the load point information in the initial load flow file;
and merging the load shedding information into an initial stable file to generate the new stable file.
And adjusting the initial stabilization file according to the initial power flow file and the adjusted new power flow file, keeping the load point information between the generated new stabilization file and the new power flow file consistent, and finally calculating the fixed value setting scheme to obtain a stable result.
According to the setting value setting method of the power system, the initial power flow file is divided into different parts according to the load point information of the initial power flow file, the different parts contain different information of the power flow file, adjustment can be conveniently conducted on the different information of the power flow file, the different parts after the initial power flow file is adjusted are recombined, and a new power flow file is obtained; the method comprises the steps of adjusting an initial stable file according to the initial power flow file and a new power flow file to obtain a new stable file, performing power system stability calculation according to the new power flow file and the new stable file to obtain a stability calculation result, generating a constant value setting scheme of a power system, adjusting the power system according to the generated constant value setting scheme, and maintaining the stability of the power system. The method can quickly generate the required calculation file, greatly accelerate the setting speed and improve the setting quality.
In another embodiment provided by the invention, the slave direct current receiving end of the power system in a certain area has a voltage stabilization problem, and the load shedding fixed value setting needs to be carried out on the receiving end main station so as to deal with the possible double-line tripping fault impact.
Firstly, dividing an initial power flow file to obtain a load related part and a unit related part;
table 1: initial load point name and load table
Figure BDA0002991851370000071
Figure BDA0002991851370000081
Table 2: the balance unit information table
Unit name (letter symbol instead of specific unit name) At presentOutput force Maximum output force
G1 600 1036
G2 600 1036
G3 500 1036
G4 500 1036
Total amount of 2200 4144
Secondly, load increase and decrease operations are carried out on relevant parts conforming to the relevant parts and relevant parts of the unit, and the increase of 100MW is taken as an example:
table 3: increased and decreased load point name and load scale
Figure BDA0002991851370000082
Figure BDA0002991851370000091
The area is provided with 400MW units locally, the actual downloading load level is 3300MW, and the downloading load is 3400MW after adjustment. The adjustment mode of the increase of each load point and the like is adopted, and can be changed into other adjustment modes according to needs, such as the increase of each load point according to the original proportion, the increase according to the past increase rate and the like.
Then, adjusting the balance unit, and correspondingly increasing the load, wherein an equal growth mode is adopted;
table 4: information table of balance unit after adjustment
Name of unit (letter symbol replacing specific unit name) Current force Maximum output force
G1 626 1036
G2 626 1036
G3 526 1036
G4 526 1036
Total amount of 2304 4144
And finally, splicing the power flow files according to different parts to form a new power flow file with the increased 100MW load.
Similarly, a trend file is formed after adding and subtracting other downward load quantities.
Generating the load cutting amount information, taking 100MW load cutting and the equal load cutting amount of each load point as an example;
table 5: shear load scale of each load point:
Figure BDA0002991851370000092
Figure BDA0002991851370000101
and by analogy, generating load shedding amount information of other load points, and combining the load shedding amount information with the original stable file to form a new stable file.
And finally, performing stability calculation by using the stability file and the power flow file and using BPA software to obtain a stability calculation result.
Table 6: an information table of a constant value setting scheme:
Figure BDA0002991851370000102
Figure BDA0002991851370000111
according to the information in the table, a constant value setting scheme meeting the requirement can be generated, parameters of the power system are adjusted according to the information table, and the stability of the power system can be maintained.
Referring to fig. 2, it is a schematic structural diagram of a fixed value setting device of an electric power system according to an embodiment of the present invention, where the device includes: the device comprises a file acquisition and division module, a power flow file adjustment module, a new power flow file combination module, a new stable file generation module and a fixed value setting module; wherein, the first and the second end of the pipe are connected with each other,
the file obtaining and dividing module is used for obtaining an initial power flow file and an initial stable file of the power system and dividing the initial power flow file into different parts according to the load point information of the initial power flow file;
the power flow file adjusting module is used for adjusting different parts of the initial power flow file division respectively;
the new power flow file merging module is used for merging different parts of the adjusted initial power flow file again to obtain a new power flow file;
the new stable file generating module is used for adjusting the initial stable file according to the initial trend file and the new trend file to generate a new stable file;
the fixed value setting module is used for performing power system stability calculation according to the new power flow file and the new stability file to obtain a stability calculation result, generating a fixed value setting scheme of the power system, and setting the power system according to the fixed value setting scheme.
In another embodiment provided by the present invention, the file acquiring and dividing unit includes a file dividing unit;
the file dividing unit is specifically configured to: and dividing the initial power flow file into a head related part, a tail related part, a load related part and a unit related part according to the load point information.
In another embodiment provided by the present invention, the power flow file adjusting module is specifically configured to:
adjusting the load-related part, and increasing or decreasing the load quantity of the load-related part by taking the basic mode load as a reference;
the related part of the unit changes the output of the unit along with the adjustment of the related part of the load:
when the load quantity of the load related part is increased, the unit related part increases the unit output;
and when the load related part reduces the load amount, the unit related part reduces the unit output.
In another embodiment provided by the present invention, the new trend file merging module is specifically configured to:
generating a cuttable load according to the new trend file;
generating load shedding information of the load shedding amount according to the load point information and the load shedding amount information;
and merging the load shedding information into the initial stable file to generate the new stable file.
Fig. 3 is a schematic diagram of a preferred implementation of a terminal device provided by the present invention. The terminal device of this embodiment includes: a processor, a memory and a computer program 1 and a computer program 2, such as a set value program of an electric power system, stored in said memory and executable on said processor. The processor implements steps in an embodiment of each of the above-described power system constant value setting methods when executing the computer program, for example, steps S101 to S105 shown in fig. 1. Or, the processor, when executing the computer program, implements the functions of the modules in the foregoing device embodiments, for example, a fixed value setting device for an electric power system.
Illustratively, the computer program may be partitioned into one or more modules that are stored in the memory and executed by the processor to implement the invention. The one or more modules may be a series of computer program instruction segments capable of performing certain functions, which are used to describe the execution of the computer program in the terminal device. For example, the computer program may be divided into a file obtaining and dividing module, a power flow file adjusting module, a new power flow file merging module, a new stable file generating module, and a constant value setting module, and specific functions of each module are not described herein again.
The terminal device can be a desktop computer, a notebook, a palm computer, a cloud server and other computing devices. The terminal device may include, but is not limited to, a processor, a memory. It will be understood by those skilled in the art that the schematic diagram is merely an example of the terminal device, and does not constitute a limitation of the terminal device, and may include more or less components than those shown, or combine some components, or different components, for example, the terminal device may further include an input-output device, a network access device, a bus, etc.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like, said processor being the control center of said terminal device, and various interfaces and lines are used to connect the various parts of the whole terminal device.
The memory may be used for storing the computer programs and/or modules, and the processor may implement various functions of the terminal device by executing or executing the computer programs and/or modules stored in the memory and calling data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
Wherein, the module integrated with the terminal device can be stored in a computer readable storage medium if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments described above may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
According to the method, the device, the equipment and the storage medium for setting the fixed value of the power system, the initial power flow file is divided into different parts according to the load point information of the initial power flow file, the different parts contain different information of the power flow file, adjustment can be conveniently carried out on the different information of the power flow file, the different parts after the adjustment of the initial power flow file are recombined, and a new power flow file is obtained; the method comprises the steps of adjusting an initial stable file according to the initial power flow file and a new power flow file to obtain a new stable file, performing power system stability calculation according to the new power flow file and the new stable file to obtain a stability calculation result, generating a constant value setting scheme of a power system, adjusting the power system according to the generated constant value setting scheme, and maintaining the stability of the power system. The method can quickly generate the required calculation file, greatly accelerate the setting speed and improve the setting quality.
It should be noted that modifications and adaptations can be made by those skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims (8)

1. A method for setting a fixed value of a power system, the method comprising:
the method comprises the steps of obtaining an initial power flow file and an initial stable file of a power system, dividing the initial power flow file into different parts according to load point information of the initial power flow file, wherein the different parts comprise a load related part and a unit related part;
adjusting different parts of the division of the initial power flow file respectively;
different parts of the adjusted initial power flow file are recombined to obtain a new power flow file;
adjusting the initial stable file according to the initial power flow file and the new power flow file to generate a new stable file;
performing power system stability calculation according to the new power flow file and the new stability file to obtain a stability calculation result, generating a constant value setting scheme of the power system, and setting the power system according to the constant value setting scheme;
the adjusting the different parts of the initial power flow file division respectively specifically comprises:
adjusting the increasing and decreasing loads of the load-related part, and correspondingly adjusting the increasing and decreasing forces of the unit-related part;
the adjusting the initial stable file according to the initial power flow file and the new power flow file to generate a new stable file specifically comprises:
generating a cuttable load according to the new trend file;
generating load shedding information of the load shedding amount according to the load point information and the load shedding amount;
and merging the load shedding information into the initial stable file to generate the new stable file.
2. The method for setting the fixed value of the power system according to claim 1, wherein the dividing the initial power flow file into different parts according to the load point information of the initial power flow file specifically comprises: and dividing the initial power flow file into a head related part, a tail related part, a load related part and a unit related part according to the load point information.
3. The method for setting the fixed value of the power system according to claim 2, wherein the adjusting different parts of the divided initial power flow file respectively comprises:
adjusting the load-related part, and increasing or decreasing the load quantity of the load-related part by taking the basic mode load as a reference;
the related part of the unit changes the output of the unit along with the adjustment of the related part of the load:
when the load related part increases the load capacity, the unit related part increases the unit output;
and when the load related part reduces the load amount, the unit related part reduces the unit output.
4. A constant value setting apparatus of an electric power system, characterized in that the apparatus comprises: the device comprises a file acquisition and division module, a power flow file adjustment module, a new power flow file combination module, a new stable file generation module and a fixed value setting module; wherein, the first and the second end of the pipe are connected with each other,
the file acquisition and division module is used for acquiring an initial power flow file and an initial stable file of a power system, and dividing the initial power flow file into different parts according to load point information of the initial power flow file, wherein the different parts comprise a load related part and a unit related part;
the power flow file adjusting module is used for adjusting different parts of the initial power flow file division respectively;
the new power flow file merging module is used for recombining different parts of the adjusted initial power flow file to obtain a new power flow file;
the new stable file generating module is used for adjusting the initial stable file according to the initial trend file and the new trend file to generate a new stable file;
the fixed value setting module is used for performing power system stability calculation according to the new power flow file and the new stability file to obtain a stability calculation result, generating a fixed value setting scheme of the power system, and setting the power system according to the fixed value setting scheme;
the load flow file adjusting module is specifically used for performing load increase and decrease adjustment on the load related part and correspondingly adjusting the increase and decrease output of the unit related part;
the new trend file merging module is specifically used for:
generating a cuttable load according to the new trend file;
generating load shedding information of the load shedding amount according to the load point information and the load shedding amount;
and merging the load shedding information into the initial stable file to generate the new stable file.
5. The fixed value setting device of the electric power system according to claim 4, wherein the file acquiring and dividing unit includes a file dividing unit;
the file dividing unit is specifically configured to: and dividing the initial power flow file into a head related part, a tail related part, a load related part and a unit related part according to the load point information.
6. The setting device of a fixed value of an electric power system according to claim 5, wherein the power flow file adjusting module is specifically configured to:
adjusting the load-related part, and increasing or decreasing the load quantity of the load-related part by taking the basic mode load as a reference;
the related part of the unit changes the output of the unit along with the adjustment of the related part of the load:
when the load related part increases the load capacity, the unit related part increases the unit output;
and when the load related part reduces the load amount, the unit related part reduces the unit output.
7. A terminal device comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor implementing a method of setting a fixed value of an electric power system according to any one of claims 1 to 3 when executing the computer program.
8. A computer-readable storage medium, comprising a stored computer program, wherein the computer program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform a method of setting a fixed value of an electric power system according to any one of claims 1 to 3.
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