CN115995853B - AC/DC power distribution system process management method and system based on power control - Google Patents

AC/DC power distribution system process management method and system based on power control Download PDF

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CN115995853B
CN115995853B CN202310144275.1A CN202310144275A CN115995853B CN 115995853 B CN115995853 B CN 115995853B CN 202310144275 A CN202310144275 A CN 202310144275A CN 115995853 B CN115995853 B CN 115995853B
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management
power
distribution network
value
transmission
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CN115995853A (en
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冯德品
陈涛
姬帅
陈玉
赵中华
李洁
李中凯
沈涛
崔波
韩宗耀
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Linyi Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Linyi Power Supply Co of State Grid Shandong Electric Power Co Ltd
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    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
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    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications

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Abstract

The application belongs to the field of power distribution networks, relates to a data analysis technology, and aims to solve the problem that the process management method and system of an AC/DC power distribution system in the prior art cannot comprehensively analyze the distribution network states of all power transmission lines, and particularly relates to a process management method and system of an AC/DC power distribution system based on power control, which comprises a process management platform, wherein the process management platform is in communication connection with a voltage flow monitoring module, a distribution network analysis module, a power detection module and a storage module, and the voltage flow monitoring module is used for monitoring and analyzing the voltage and current of the AC/DC power distribution network: setting a management period, dividing the management period into a plurality of management periods, and marking a transmission line of an alternating-current/direct-current power distribution network as a management object; the application monitors and analyzes the voltage and the current of the AC/DC power distribution network, and comprehensively analyzes various transmission parameters of the power distribution line in the management period by a time-division detection mode.

Description

AC/DC power distribution system process management method and system based on power control
Technical Field
The application belongs to the field of power distribution networks, relates to a data analysis technology, and particularly relates to a process management method and system of an alternating current/direct current power distribution system based on power control.
Background
The ac-dc hybrid distribution network is a distribution network in which ac and dc are mixed together, the ac-dc hybrid distribution network is built on the basis of the ac distribution network, which is a development trend of a future distribution network, and in terms of optimization planning, researches on topology, voltage level, planning method, reliability, economical efficiency and comprehensive evaluation problem of the dc distribution network exist, but in the prior art, the process management method and system of the ac-dc distribution system cannot comprehensively analyze the distribution network states of all transmission lines, so that the accuracy of the distribution network analysis result is not high, and meanwhile, the actual distribution network state and the output power of the distribution network cannot be regularly analyzed, so that the distribution system cannot be effectively optimized;
the application provides a solution to the technical problem.
Disclosure of Invention
The application aims to provide a process management method and system for an alternating current/direct current power distribution system based on power control, which are used for solving the problem that the process management method and system for the alternating current/direct current power distribution system in the prior art cannot comprehensively analyze the distribution network states of all power transmission lines.
The technical problems to be solved by the application are as follows: how to provide a process management method and system for an AC/DC power distribution system, which can comprehensively analyze the distribution network states of all power transmission lines.
The aim of the application can be achieved by the following technical scheme:
the process management system of the AC/DC power distribution system based on power control comprises a process management platform, wherein the process management platform is in communication connection with a voltage flow monitoring module, a distribution network analysis module, a power detection module and a storage module;
the voltage and current monitoring module is used for monitoring and analyzing the voltage and current of the AC/DC power distribution network: setting a management period, dividing the management period into a plurality of management periods, marking a power transmission line of an alternating-current/direct-current power distribution network as a management object, acquiring a voltage excitation value YJ and a current excitation value LJ of the management object, and performing numerical value calculation to obtain a stability transmission coefficient SW of the management object in the management period; marking the management object as a stable transmission object or a wave transmission object according to the numerical value of the stable transmission coefficient SW; the stable transmission object and the wave transmission object in the management period are both sent to a distribution network analysis module through a process management platform;
the distribution network analysis module is used for analyzing the overall operation state of the AC/DC power distribution network: acquiring transmission wave data SB, transmission connection data SL and amplitude data BF of a management period, and performing numerical value calculation to obtain a distribution network coefficient PW of the AC/DC power distribution network in the management period; marking the management time period as a qualified time period or a disqualified time period through the numerical value of the distribution network coefficient PW, and sending the disqualified time period to a mobile phone terminal of a manager through a process management platform;
the power analysis module is used for performing management analysis on the output power of the alternating current-direct current power distribution network: marking the maximum value of the output power of the AC/DC power distribution network in the management period as a power value, establishing a power set of the power values of the AC/DC power distribution network in all qualified periods, performing variance calculation on the power set to obtain a power dissipation value, acquiring a power dissipation threshold value through a storage module, comparing the power dissipation value with the power dissipation threshold value, and acquiring a power range through a comparison result; and sending the power range to a process management platform, and sending the power range to a storage module for storage after the process management platform receives the power range.
As a preferred embodiment of the present application, the process of acquiring the stress value YJ of the management object includes: the method comprises the steps of obtaining a voltage range of a management object, marking an average value of a maximum value and a minimum value of the voltage range as a voltage standard value of the management object, marking an absolute value of a difference value between a transmission voltage value of the management object and the voltage standard value as pressure excitation data, and marking a maximum value of the pressure excitation data in a management period as a pressure excitation value YJ of the management object; the acquisition engineering of the flow excitation value LJ comprises the following steps: and obtaining a current range of the management object, marking the average value of the maximum value and the minimum value of the current range as a current standard value of the management object, marking the absolute value of the difference value between the transmission current value and the current standard value of the management object as streaming data, and marking the maximum value of the streaming data in the management period as a streaming value LJ of the management object.
As a preferred embodiment of the present application, the specific process of marking the management object as a stablized object or a wave-transmitting object includes: the stability threshold SWmax is obtained through the storage module, and the stability coefficient SW of the management object is compared with the stability threshold SWmax:
if the stability transmission coefficient SW is smaller than the stability transmission threshold SWmax, judging that the distribution and transmission stability of the management object in the management period meets the requirement, and marking the corresponding management object as the stability transmission object;
if the stability transmission coefficient SW is greater than or equal to the stability transmission threshold SWmax, judging that the distribution and transmission stability of the management object in the management period does not meet the requirement, and marking the corresponding management object as a wave transmission object.
As a preferred embodiment of the present application, the wave transmission data SB of the management period is the number value of the wave transmission objects in the management period; the acquisition process of the link data SL comprises: randomly selecting one wave transmission object and marking the wave transmission object as a selected object, if the wave transmission object connected with the selected object exists, eliminating the selected object and the connected wave transmission object, and adding one to the value of the transmission connection data SL; if the wave transmission object connected with the selected object does not exist, the selected object is directly removed; selecting the selected object again until all the wave transmission objects are removed, outputting the numerical value of the transmission data SL, and resetting the numerical value of the transmission data SL after outputting; the acquisition process of the amplitude data BF includes: and marking a wave transmission object with the largest value of the stability transmission coefficient SW in the management period as a marked object, and marking the difference value between the stability transmission coefficient SW of the marked object and the stability transmission threshold SWmax as amplitude data BF.
As a preferred embodiment of the present application, the storage module obtains the distribution network threshold PWmax, and compares the distribution network coefficient PW of the ac/dc power distribution network with the distribution network threshold PWmax:
if the distribution network coefficient PW is smaller than the distribution network threshold PWMax, judging that the distribution network state of the AC/DC distribution network meets the requirement, and marking the corresponding management time period as a qualified time period;
if the distribution network coefficient PW is larger than or equal to the distribution network threshold PWMax, judging that the distribution network state of the AC/DC distribution network does not meet the requirement, and marking the corresponding management time period as a disqualified time period.
As a preferred embodiment of the present application, the specific process of comparing the power dissipation value with the power dissipation threshold value includes: if the power dispersion value is smaller than the Yu Gong dispersion value, a power range is formed by the minimum element and the maximum element in the power set; if the power dispersion value is larger than or equal to the power dispersion threshold value, the power range is formed by the power values corresponding to the two management time periods with the minimum distribution network coefficient PW.
A process management method of an AC/DC power distribution system based on power control comprises the following steps:
step one: and monitoring and analyzing the voltage and the current of the AC/DC power distribution network: setting a management period, dividing the management period into a plurality of management periods, marking a power transmission line of an alternating-current/direct-current power distribution network as a management object, obtaining a voltage excitation value YJ and a current excitation value LJ of the management object, performing numerical calculation to obtain a stability transmission coefficient SW, and marking the management object as a stability transmission object or a wave transmission object according to the numerical value of the stability transmission coefficient;
step two: and analyzing the overall operation state of the AC/DC power distribution network: acquiring wave transmission data SB, transmission connection data SL and amplitude data BF of a management time period, performing numerical computation to obtain a distribution network coefficient PW, and marking the management time period as a qualified time period or a disqualified time period according to the numerical value of the distribution network coefficient PW;
step three: and the process management platform receives the power range and then sends the power range to the storage module for storage.
The application has the following beneficial effects:
1. the voltage and current of the AC/DC power distribution network can be monitored and analyzed through the voltage and current monitoring module, and various transmission parameters of the power distribution line in the management period are comprehensively analyzed in a time-division detection mode, so that the distribution state of the power transmission line is fed back through the calculated transmission stability coefficient, the power distribution line is classified and marked according to the distribution state, and data support is provided for the analysis of the distribution state of the power distribution network;
2. the overall operation state of the AC/DC power distribution network can be analyzed through the distribution network analysis module, the distribution network coefficient is obtained through comprehensive calculation of the number, the spatial distribution and the fluctuation degree of the wave transmission objects in the management period, so that the distribution state of the power distribution network is fed back through the distribution network coefficient, and early warning is timely carried out when the distribution state of the power distribution network is abnormal;
3. the power analysis module can manage and analyze the output power of the AC/DC power distribution network, and the power range is obtained by regularly analyzing the distribution network coefficient and the power value of the power distribution network in each management period, so that the output power of the power distribution network in the next management period is optimally regulated through the power range, and the distribution state of the power distribution network in the next management period is improved.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a system block diagram of a first embodiment of the present application;
fig. 2 is a flowchart of a method according to a second embodiment of the application.
Detailed Description
The technical solutions of the present application will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The traditional alternating current power distribution system faces a series of problems of high line loss, power quality disturbance, voltage drop and the like, and is difficult to meet the increasing power demands of power users.
Example 1
As shown in fig. 1, a process management system of an ac/dc power distribution system based on power control includes a process management platform, where the process management platform is communicatively connected with a voltage flow monitoring module, a distribution network analysis module, a power detection module and a storage module.
The voltage and current monitoring module is used for monitoring and analyzing the voltage and current of the AC/DC power distribution network: setting a management period, dividing the management period into a plurality of management periods, marking a transmission line of an alternating current-direct current power distribution network as a management object, and acquiring a stress value YJ and a current-stress value LJ of the management object, wherein the acquisition process of the stress value YJ of the management object comprises the following steps: the method comprises the steps of obtaining a voltage range of a management object, marking an average value of a maximum value and a minimum value of the voltage range as a voltage standard value of the management object, marking an absolute value of a difference value between a transmission voltage value of the management object and the voltage standard value as pressure excitation data, and marking a maximum value of the pressure excitation data in a management period as a pressure excitation value YJ of the management object; the acquisition engineering of the flow excitation value LJ comprises the following steps: obtaining a current range of a management object, marking an average value of a maximum value and a minimum value of the current range as a current standard value of the management object, marking an absolute value of a difference value between a transmission current value of the management object and the current standard value as stream excitation data, and marking a maximum value of the stream excitation data in a management period as a stream excitation value LJ of the management object; obtaining a stability transmission coefficient SW of the management object in the management period through a formula SW=α1×YJ+α2×LJ, wherein the stability transmission coefficient is a numerical value reflecting the stability of power transmission of the management object in the management period, and the smaller the numerical value of the stability transmission coefficient is, the higher the stability of power transmission of the management object in the management period is; wherein, alpha 1 and alpha 2 are proportionality coefficients, and alpha 1 is more than alpha 2 is more than 1; the stability threshold SWmax is obtained through the storage module, and the stability coefficient SW of the management object is compared with the stability threshold SWmax: if the stability transmission coefficient SW is smaller than the stability transmission threshold SWmax, judging that the distribution and transmission stability of the management object in the management period meets the requirement, and marking the corresponding management object as the stability transmission object; if the stability transmission coefficient SW is larger than or equal to the stability transmission threshold SWmax, judging that the distribution and transmission stability of the management object in the management period does not meet the requirement, and marking the corresponding management object as a wave transmission object; the stable transmission object and the wave transmission object in the management period are both sent to a distribution network analysis module through a process management platform; the method comprises the steps of monitoring and analyzing voltage and current of an alternating current/direct current power distribution network, comprehensively analyzing various transmission parameters of a power distribution line in a management period in a time-division detection mode, feeding back the power distribution state of the power distribution line through a calculated transmission stability coefficient, classifying and marking the power distribution line according to the power distribution state, and providing data support for the power distribution state analysis of the power distribution network.
The distribution network analysis module is used for analyzing the overall operation state of the AC/DC power distribution network: acquiring wave transmission data SB, link transmission data SL and amplitude data BF of a management period; the wave transmission data SB of the management period is the number value of the wave transmission objects in the management period; the acquisition process of the link data SL comprises: randomly selecting one wave transmission object and marking the wave transmission object as a selected object, if the wave transmission object connected with the selected object exists, eliminating the selected object and the connected wave transmission object, and adding one to the value of the transmission connection data SL; if the wave transmission object connected with the selected object does not exist, the selected object is directly removed; selecting the selected object again until all the wave transmission objects are removed, outputting the numerical value of the transmission data SL, and resetting the numerical value of the transmission data SL after outputting; the acquisition process of the amplitude data BF includes: marking a wave transmission object with the largest value of the stability transmission coefficient SW in the management period as a marking object, and marking the difference value between the stability transmission coefficient SW of the marking object and the stability transmission threshold SWmax as amplitude data BF; obtaining a distribution network coefficient PW of the AC/DC power distribution network in a management period through a formula PW=β1×SB+β2×SL+β3×BF, wherein the distribution network coefficient is a numerical value reflecting the distribution network state of the AC/DC power distribution network in the management period, and the smaller the numerical value of the distribution network coefficient is, the better the distribution network state of the AC/DC power distribution network in the management period is indicated; wherein β1, β2 and β3 are all scaling factors, and β1 > β2 > β3 > 1; the distribution network threshold PWMax is obtained through the storage module, and the distribution network coefficient PW of the AC/DC distribution network is compared with the distribution network threshold PWMax: if the distribution network coefficient PW is smaller than the distribution network threshold PWMax, judging that the distribution network state of the AC/DC distribution network meets the requirement, and marking the corresponding management time period as a qualified time period; if the distribution network coefficient PW is larger than or equal to a distribution network threshold PWMax, judging that the distribution network state of the AC/DC distribution network does not meet the requirement, and marking the corresponding management time period as a disqualified time period; the unqualified time period is sent to a mobile phone terminal of a manager through a process management platform; and analyzing the overall running state of the AC/DC power distribution network, and comprehensively calculating the quantity, the spatial distribution and the fluctuation degree of the wave transmission objects in the management period to obtain a distribution network coefficient, so that the distribution state of the power distribution network is fed back through the distribution network coefficient, and early warning is timely carried out when the distribution state of the power distribution network is abnormal.
The power analysis module is used for carrying out management analysis on the output power of the alternating current/direct current power distribution network: marking the maximum value of the output power of the AC/DC power distribution network in the management period as a power value, establishing a power set of the power values of the AC/DC power distribution network in all qualified periods, performing variance calculation on the power set to obtain a power dissipation value, acquiring a power dissipation threshold value through a storage module, and comparing the power dissipation value with the power dissipation threshold value: if the power dispersion value is smaller than the Yu Gong dispersion value, a power range is formed by the minimum element and the maximum element in the power set; if the power dispersion value is larger than or equal to the power dispersion threshold value, the power range is formed by the power values corresponding to the two management time periods with the minimum distribution network coefficient PW; the power range is sent to a process management platform, and the process management platform receives the power range and then sends the power range to a storage module for storage; and carrying out management analysis on the output power of the AC/DC power distribution network, and obtaining a power range by carrying out regular analysis on the distribution network coefficient and the power value of the power distribution network in each management period, so that the output power of the power distribution network in the next management period is optimally regulated through the power range, and the distribution state of the power distribution network in the next management period is improved.
Example two
As shown in fig. 2, a process management method of an ac/dc power distribution system based on power control includes the following steps:
step one: and monitoring and analyzing the voltage and the current of the AC/DC power distribution network: setting a management period, dividing the management period into a plurality of management periods, marking a power transmission line of an alternating current/direct current power distribution network as a management object, obtaining a voltage excitation value YJ and a current excitation value LJ of the management object, performing numerical calculation to obtain a stability transmission coefficient SW, marking the management object as a stability transmission object or a wave transmission object according to the numerical value of the stability transmission coefficient, classifying and marking the power transmission line according to the power distribution state, and providing data support for the power distribution state analysis of the power distribution network;
step two: and analyzing the overall operation state of the AC/DC power distribution network: acquiring transmission wave data SB, transmission connection data SL and amplitude data BF of a management period, performing numerical calculation to obtain a distribution network coefficient PW, marking the management period as a qualified period or a disqualified period according to the numerical value of the distribution network coefficient PW, feeding back the distribution state of the distribution network through the distribution network coefficient, and timely early warning when the distribution state of the distribution network is abnormal;
step three: and the process management platform receives the power range and then sends the power range to the storage module for storage, and the power range is used for optimally adjusting the output power of the power distribution network in the next management period to improve the power distribution state of the power distribution network in the next management period.
A process management method and system of an AC/DC power distribution system based on power control, which monitor and analyze the voltage and current of an AC/DC power distribution network during operation: setting a management period, dividing the management period into a plurality of management periods, marking a power transmission line of an alternating-current/direct-current power distribution network as a management object, obtaining a voltage excitation value and a current excitation value of the management object, performing numerical calculation to obtain a stability transmission coefficient, and marking the management object as a stability transmission object or a wave transmission object according to the numerical value of the stability transmission coefficient; and analyzing the overall operation state of the AC/DC power distribution network: acquiring wave transmission data, transmission connection data and amplitude data of a management period, performing numerical calculation to obtain a distribution network coefficient, and marking the management period as a qualified period or a disqualified period according to the numerical value of the distribution network coefficient; and the process management platform receives the power range and then sends the power range to the storage module for storage.
The foregoing is merely illustrative of the structures of this application and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the application or from the scope of the application as defined in the accompanying claims.
The formulas are all formulas obtained by collecting a large amount of data for software simulation and selecting a formula close to a true value, and coefficients in the formulas are set by a person skilled in the art according to actual conditions; such as: the formula pw=β1×sb+β2×sl+β3×bf; collecting a plurality of groups of sample data by a person skilled in the art and setting a corresponding distribution network coefficient for each group of sample data; substituting the set distribution network coefficient and the acquired sample data into a formula, forming a ternary one-time equation set by any three formulas, screening the calculated coefficient, and taking an average value to obtain values of beta 1, beta 2 and beta 3 of 5.48, 3.25 and 2.14 respectively;
the size of the coefficient is a specific numerical value obtained by quantizing each parameter, so that the subsequent comparison is convenient, and the size of the coefficient depends on the number of sample data and the corresponding distribution network coefficient is preliminarily set for each group of sample data by a person skilled in the art; as long as the proportional relation between the parameter and the quantized value is not affected, for example, the distribution network coefficient is in direct proportion to the value of the wave transmission data.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the application disclosed above are intended only to assist in the explanation of the application. The preferred embodiments are not intended to be exhaustive or to limit the application to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the application and the practical application, to thereby enable others skilled in the art to best understand and utilize the application. The application is limited only by the claims and the full scope and equivalents thereof.

Claims (4)

1. The process management system of the AC/DC power distribution system based on power control is characterized by comprising a process management platform, wherein the process management platform is in communication connection with a voltage flow monitoring module, a distribution network analysis module, a power detection module and a storage module;
the voltage and current monitoring module is used for monitoring and analyzing the voltage and current of the AC/DC power distribution network: setting a management period, dividing the management period into a plurality of management periods, marking a power transmission line of an alternating-current/direct-current power distribution network as a management object, acquiring a voltage excitation value YJ and a current excitation value LJ of the management object, and performing numerical value calculation to obtain a stability transmission coefficient SW of the management object in the management period; marking the management object as a stable transmission object or a wave transmission object according to the numerical value of the stable transmission coefficient SW; the stable transmission object and the wave transmission object in the management period are both sent to a distribution network analysis module through a process management platform;
the distribution network analysis module is used for analyzing the overall operation state of the AC/DC power distribution network: acquiring transmission wave data SB, transmission connection data SL and amplitude data BF of a management period, and performing numerical value calculation to obtain a distribution network coefficient PW of the AC/DC power distribution network in the management period; marking the management time period as a qualified time period or a disqualified time period through the numerical value of the distribution network coefficient PW, and sending the disqualified time period to a mobile phone terminal of a manager through a process management platform;
the power analysis module is used for performing management analysis on the output power of the alternating current-direct current power distribution network: marking the maximum value of the output power of the AC/DC power distribution network in the management period as a power value, establishing a power set of the power values of the AC/DC power distribution network in all qualified periods, performing variance calculation on the power set to obtain a power dissipation value, acquiring a power dissipation threshold value through a storage module, comparing the power dissipation value with the power dissipation threshold value, and acquiring a power range through a comparison result; the power range is sent to a process management platform, and the process management platform receives the power range and then sends the power range to a storage module for storage;
the process for acquiring the stress value YJ of the management object includes: the method comprises the steps of obtaining a voltage range of a management object, marking an average value of a maximum value and a minimum value of the voltage range as a voltage standard value of the management object, marking an absolute value of a difference value between a transmission voltage value of the management object and the voltage standard value as pressure excitation data, and marking a maximum value of the pressure excitation data in a management period as a pressure excitation value YJ of the management object; the acquisition engineering of the flow excitation value LJ comprises the following steps: obtaining a current range of a management object, marking an average value of a maximum value and a minimum value of the current range as a current standard value of the management object, marking an absolute value of a difference value between a transmission current value of the management object and the current standard value as stream excitation data, and marking a maximum value of the stream excitation data in a management period as a stream excitation value LJ of the management object;
the specific process for marking the management object as the stable transmission object or the wave transmission object comprises the following steps: the stability threshold SWmax is obtained through the storage module, and the stability coefficient SW of the management object is compared with the stability threshold SWmax:
if the stability transmission coefficient SW is smaller than the stability transmission threshold SWmax, judging that the distribution and transmission stability of the management object in the management period meets the requirement, and marking the corresponding management object as the stability transmission object;
if the stability transmission coefficient SW is larger than or equal to the stability transmission threshold SWmax, judging that the distribution and transmission stability of the management object in the management period does not meet the requirement, and marking the corresponding management object as a wave transmission object;
the wave transmission data SB of the management period is the number value of the wave transmission objects in the management period; the acquisition process of the link data SL comprises: randomly selecting one wave transmission object and marking the wave transmission object as a selected object, if the wave transmission object connected with the selected object exists, eliminating the selected object and the connected wave transmission object, and adding one to the value of the transmission connection data SL; if the wave transmission object connected with the selected object does not exist, the selected object is directly removed; selecting the selected object again until all the wave transmission objects are removed, outputting the numerical value of the transmission data SL, and resetting the numerical value of the transmission data SL after outputting; the acquisition process of the amplitude data BF includes: marking a wave transmission object with the largest value of the stability transmission coefficient SW in the management period as a marking object, and marking the difference value between the stability transmission coefficient SW of the marking object and the stability transmission threshold SWmax as amplitude data BF;
the calculation formula of the stability factor SW of the management object in the management period is as follows: sw=α1×yj+α2×lj, where α1 and α2 are scaling factors, and α1 > α2 > 1;
the calculation formula of the distribution network coefficient PW of the AC/DC distribution network in the management period is as follows: pw=β1×sb+β2×sl+β3×bf, wherein β1, β2 and β3 are all scaling factors, and β1 > β2 > β3 > 1.
2. The ac/dc distribution system process management system based on power control according to claim 1, wherein the storage module obtains a distribution network threshold PWmax, and compares a distribution network coefficient PW of the ac/dc distribution network with the distribution network threshold PWmax:
if the distribution network coefficient PW is smaller than the distribution network threshold PWMax, judging that the distribution network state of the AC/DC distribution network meets the requirement, and marking the corresponding management time period as a qualified time period;
if the distribution network coefficient PW is larger than or equal to the distribution network threshold PWMax, judging that the distribution network state of the AC/DC distribution network does not meet the requirement, and marking the corresponding management time period as a disqualified time period.
3. The ac/dc power distribution system process management system according to claim 2, wherein the specific process of comparing the power dissipation value with the power dissipation threshold comprises: if the power dispersion value is smaller than the Yu Gong dispersion value, a power range is formed by the minimum element and the maximum element in the power set; if the power dispersion value is larger than or equal to the power dispersion threshold value, the power range is formed by the power values corresponding to the two management time periods with the minimum distribution network coefficient PW.
4. The process management method for the AC/DC power distribution system based on the power control is applied to the process management system for the AC/DC power distribution system based on the power control as claimed in claim 1, and is characterized by comprising the following steps:
step one: and monitoring and analyzing the voltage and the current of the AC/DC power distribution network: setting a management period, dividing the management period into a plurality of management periods, marking a power transmission line of an alternating-current/direct-current power distribution network as a management object, obtaining a voltage excitation value YJ and a current excitation value LJ of the management object, performing numerical calculation to obtain a stability transmission coefficient SW, and marking the management object as a stability transmission object or a wave transmission object according to the numerical value of the stability transmission coefficient;
step two: and analyzing the overall operation state of the AC/DC power distribution network: acquiring wave transmission data SB, transmission connection data SL and amplitude data BF of a management time period, performing numerical computation to obtain a distribution network coefficient PW, and marking the management time period as a qualified time period or a disqualified time period according to the numerical value of the distribution network coefficient PW;
step three: and the process management platform receives the power range and then sends the power range to the storage module for storage.
CN202310144275.1A 2023-02-21 2023-02-21 AC/DC power distribution system process management method and system based on power control Active CN115995853B (en)

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