CN111210129A - Power distribution network planning service management information system based on meshing - Google Patents
Power distribution network planning service management information system based on meshing Download PDFInfo
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- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
The invention provides a power distribution network planning service management information system based on meshing, which comprises: the information acquisition module is used for acquiring grid division information in a power distribution network area and acquiring economic evaluation basic data in each grid; the in-grid analysis module is used for analyzing the current situation of the grid in the grid to obtain a topology analysis result, an N-1 analysis result and a power supply capacity analysis result of the grid; the power consumption demand planning management module is used for acquiring newly-added power consumption planning information; planning a new substation outlet scheme by combining the analysis result of the in-grid analysis module on the current grid situation and the newly-added power utilization planning information according to the economic evaluation basic data in the grid; and the management module is used for auditing and managing the new substation outgoing line scheme. The invention greatly improves the working efficiency of power grid planning.
Description
Technical Field
The invention relates to the technical field of power grid planning, in particular to a power distribution network planning service management information system based on meshing.
Background
The grid structure of the power distribution network is usually planned by a local power distribution management department, and the data volume of the grid structure information of the power distribution network is huge because of the numerous power distribution equipment and the complex wiring in the power distribution network area. In the prior art, a power distribution network planning mode based on gridding is provided, so that the grid planning degree of a power distribution area can be effectively improved. However, at present, no efficient centralized management system for the planning information of the meshed power distribution network exists, and particularly, no power grid planning management system for the newly increased power consumption needs exists.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a power distribution network planning service management information system based on meshing.
The purpose of the invention is realized by adopting the following technical scheme:
the utility model provides a distribution network planning business management information system based on meshing, includes:
the information acquisition module is used for acquiring grid division information in a power distribution network area and acquiring economic evaluation basic data in each grid;
the in-grid analysis module is used for analyzing the current situation of the grid in the grid to obtain a topology analysis result, an N-1 analysis result and a power supply capacity analysis result of the grid;
the power consumption demand planning management module is used for acquiring newly-added power consumption planning information; planning a new substation outlet scheme by combining the analysis result of the in-grid analysis module on the current grid situation and the newly-added power utilization planning information according to the economic evaluation basic data in the grid;
and the management module is used for auditing and managing the new substation outgoing line scheme.
In one embodiment, the information collection module comprises: the grid divides the information unit and the basic data unit;
the grid division information unit is connected with the external function module and is used for acquiring grid division information from the external function module, wherein the grid division information comprises power distribution area GIS information, grid division information, power distribution equipment data in a grid, grid frame data, user data, power grid resource data and the like;
the basic data unit comprises economic evaluation basic data stored in the grid, including evaluation result documents and related index data, such as project financial indexes, technical and economic indexes, reliability indexes, environmental indexes and the like.
In one embodiment, the intra-grid analysis module comprises a topology analysis unit, an N-1 analysis unit and a power supply capacity calculation unit;
the topology analysis unit is used for analyzing a power supply topology relation by calculating the direct power supply range of the upper power supply station and the lower load station, so as to calculate the ring opening point of a power grid, evaluate the power supply capacity of the current grid, and analyze weak links of the grid;
the N-1 analysis unit is used for carrying out N-1 analysis on the grid structure in the grid, judging whether safety checks such as a line N-1, a main transformer N-1, a substation full stop, a bus N-1 and the like are met in the grid, and marking out grid information which does not meet the connection mode of the N-1;
and the power supply capacity calculating unit is used for calculating the power supply capacity of the power grid from multiple angles, and comprises the power supply capacity of the power grid under the condition of not considering the transmission capacity of the line, under the condition of considering the transmission capacity of the line at the outlet port, under the condition of considering the transmission capacity of the minimum line type and the like.
In one embodiment, the power demand planning management module comprises a power demand unit and a newly-added outlet planning unit;
the power consumption demand unit is used for receiving newly-increased power consumption demand information, wherein the power consumption demand information comprises government power consumption information, temporary telegram loading information, customer service newly-increased load information and the like;
and the newly added outgoing line planning unit is used for a manager to refer to the economic evaluation basic data in the grid, combine the analysis result of the analysis module in the grid on the current situation of the grid and newly added power demand information to plan a new substation outgoing line scheme.
In one embodiment, the management module is configured to perform audit management on the new substation outlet scheme, including modifying, deleting, approving, querying and maintaining the new substation outlet scheme.
In one embodiment, the management module comprises an auditing unit and a scheme management unit;
the auditing unit is used for auditing a new substation outlet scheme, and comprises the functions of modifying, deleting, examining and approving and inquiring outlet lines of newly-added distribution network infrastructure substations 10(20) kilovolt cabinet or business expansion equipment 10(20) kilovolt cabinet, and supporting electronic signature examination and approval and printing;
and the scheme management unit is used for managing planning information, approval information, drawing information and the like of the new substation outgoing scheme, so that a manager can inquire, check, print and the like the information.
In one embodiment, the management module further comprises a right management unit, wherein the right management unit is used for verifying the identity information of the user and allowing the user to log in the management module after the identity information passes the identity verification; the authority management unit comprises a login unit and an authentication unit;
the login unit is used for acquiring the identity information of the user;
the verification unit is used for verifying the identity information of the user and outputting an identity verification result.
The invention has the beneficial effects that: the information acquisition module can acquire meshing information in a power distribution network region from different power distribution network information systems, and can analyze the current architecture situation in the mesh through the in-mesh analysis module according to the meshing information to acquire an analysis result required by power network planning; when the government, the enterprise or the local department needs to carry out the newly increased power consumption requirement, the planners refer to the analysis result and can carry out reasonable newly increased power consumption planning through the power consumption requirement planning management module; and managers carry out unified audit management on the newly-added power utilization planning scheme through the management system, so that the whole system is convenient for users, planners and managers to participate in power grid planning work aiming at newly-added power utilization requirements, and the work efficiency of power grid planning is greatly improved.
Meanwhile, when the planners carry out reasonable new power utilization planning, the close combination of the power grid planning and related services of marketing, production technology and scheduling operation needs to be considered, so that reference data needed by the power grid planning such as economic assessment basic data and the like are obtained and integrated in the information acquisition module, the planners can consider the power grid planning scheme in all directions conveniently, and the power grid planning effect is improved.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is a block diagram of the frame of the present invention;
FIG. 2 is a block diagram of the frame of the information collection module of the present invention;
FIG. 3 is a block diagram of a framework of an intra-grid analysis module according to the present invention;
FIG. 4 is a block diagram of a power demand planning management module according to the present invention;
FIG. 5 is a block diagram of a framework of the management module of the present invention;
fig. 6 is a frame structure diagram of the rights management unit of the present invention.
Reference numerals:
the system comprises an information acquisition module 1, an intra-grid analysis module 2, an electricity demand planning management module 3, a management module 4, a grid division information unit 11, a basic data unit 12, a topology analysis unit 21, an N-1 analysis unit 22, a power supply capacity calculation unit 23, an electricity demand unit 31, a newly added outlet planning unit 32, a visualization unit 33, an auditing unit 41, a scheme management unit 42, a permission management unit 43, a verification unit 432, a login unit 431, a login information acquisition unit 4311, a voice acquisition unit 4312, a login information verification unit 4321, a voice verification unit 4322, a preprocessing subunit 4323, an endpoint detection subunit 4324, a feature extraction subunit 4325 and a verification subunit 4326
Detailed Description
The invention is further described in connection with the following application scenarios.
Referring to fig. 1, a grid-based power distribution network planning service management information system is shown, including:
the information acquisition module 1 is used for acquiring grid division information in a power distribution network area and acquiring economic evaluation basic data in each grid;
the in-grid analysis module 2 is used for analyzing the current situation of the grid in the grid to obtain a topology analysis result, an N-1 analysis result and a power supply capacity analysis result of the grid;
the power consumption demand planning management module 3 is used for acquiring newly-increased power consumption planning information; planning a new substation outlet scheme by combining the analysis result of the in-grid analysis module 2 on the current grid situation and the newly added power utilization planning information according to the economic evaluation basic data in the grid;
and the management module 4 is used for auditing and managing the new substation outgoing line scheme.
According to the embodiment of the invention, the information acquisition module can acquire the meshing information in the power distribution network region from different power distribution network information systems, and according to the meshing information, the current architecture situation in the mesh can be analyzed through the intra-mesh analysis module to acquire the analysis result required by power grid planning; when the government, the enterprise or the local department needs to carry out the newly increased power consumption requirement, the planners refer to the analysis result and can carry out reasonable newly increased power consumption planning through the power consumption requirement planning management module; and managers carry out unified audit management on the newly-added power utilization planning scheme through the management system, so that the whole system is convenient for users, planners and managers to participate in power grid planning work aiming at newly-added power utilization requirements, and the work efficiency of power grid planning is greatly improved.
Meanwhile, when the planners carry out reasonable new power utilization planning, the close combination of the power grid planning and related services of marketing, production technology and scheduling operation needs to be considered, so that reference data needed by the power grid planning such as economic assessment basic data and the like are obtained and integrated in the information acquisition module, the planners can consider the power grid planning scheme in all directions conveniently, and the power grid planning effect is improved.
In one embodiment, referring to fig. 2, the information collection module 1 comprises: a mesh partition information unit 11 and a basic data unit 12;
the grid division information unit 11 is connected with the external function module and is used for acquiring grid division information from the external function module, wherein the grid division information comprises distribution area GIS information, grid division information, distribution equipment data in a grid, grid frame data, user data, power grid resource data and the like;
the basic data unit 12 stores the economic evaluation basic data in the grid, including evaluation result documents and related index data, such as project financial index, technical and economic index, reliability index, environmental index, etc.
According to the embodiment of the invention, a plurality of interrelated factors such as resources, population, economic development, social activities and the like are involved in the distribution network planning process, so that the information is simultaneously acquired by the information acquisition module for the planning staff to call and reference when needed, the planning demands of the planning staff are considered in an all-round way, and the power grid planning efficiency is further improved.
In one embodiment, referring to fig. 3, the intra-grid analysis module 2 includes a topology analysis unit 21, an N-1 analysis unit 22, and a power supply capability calculation unit 23;
the topology analysis unit 21 is configured to analyze a power supply topology relationship by calculating a direct power supply range of the upper power supply station and the lower load station, so as to calculate a ring-open point of a power grid, evaluate a current grid power supply capability, and analyze a grid weak link;
the N-1 analysis unit 22 is used for carrying out N-1 analysis on the grid structure in the grid, judging whether safety checks such as a line N-1, a main transformer N-1, a substation full stop, a bus N-1 and the like are met in the grid, and marking out grid structure information which does not meet the connection mode of the N-1;
and the power supply capacity calculating unit 23 is configured to calculate the power supply capacity of the power grid from multiple angles, including calculating the power supply capacity of the power grid without considering the transmission capacity of the line, considering the transmission capacity of the line at the outgoing port, considering the transmission capacity of the minimum line type, and the like.
According to the embodiment of the invention, a plurality of different analysis units are arranged in the in-grid analysis module, so that automatic analysis can be performed according to the existing distribution network planning information, net rack information and the like, and an accurate analysis result is obtained for use or reference in newly-added power grid planning or outgoing line planning, so that the intelligent level of the system is improved, and the accuracy and the efficiency of power grid planning are further improved.
In one embodiment, the power demand planning management module 3 includes a power demand unit 31 and a newly added outlet planning unit 32;
the power consumption demand unit 31 is configured to receive new power consumption demand information, where the power consumption demand information includes government power consumption information, temporary electricity telegram loading information, customer service new load information, and the like;
and the newly added outgoing line planning unit 32 is used for a manager to refer to the economic evaluation basic data in the grid, combine the analysis result of the analysis module 2 in the grid on the current situation of the grid and newly added power demand information to plan a new substation outgoing line scheme.
In an embodiment, the power demand planning management module 3 further includes a visualization unit 33, which is used for visually displaying power distribution area GIS information, grid division information, and power distribution equipment data, grid rack data, user data, power grid resource data in a grid, and the like, so that a planner can visually and vividly check distribution network planning current status information and effectively organize power grid planning.
According to the embodiment of the invention, the system can acquire the newly-increased power demand information of different channels, and the planners plan the newly-increased power demand information in a unified manner to generate the power grid planning scheme, so that the butt joint of the power grid planning demand end and the service providing end is realized, the flow complexity in the traditional demand-processing process is effectively reduced, and the convenience degree of power grid planning is improved.
In an embodiment, the management module 4 is configured to perform audit management on the new substation outlet scheme, including modifying, deleting, approving, querying and maintaining the new substation outlet scheme.
In one embodiment, the management module 4 includes an auditing unit 41 and a scenario management unit 42;
the auditing unit 41 is used for auditing a new substation outgoing line scheme, and comprises the functions of modifying, deleting, examining and approving, inquiring and maintaining outgoing lines of newly-added distribution network infrastructure substations 10(20) kilovolt cabinet outgoing lines or business expansion devices 10(20) kilovolt cabinet outgoing lines, and supporting electronic signature examination and approval and printing;
and the scheme management unit 42 is used for managing planning information, approval information, drawing information and the like of the new substation outgoing scheme, so that a manager can inquire, check, print and the like the information.
In one scenario, the plan management module 4 is further configured to visually display a new substation outgoing plan by combining with distribution area GIS information, and simultaneously display grid division information, distribution device data in a grid, grid frame data, user data, grid resource data and the like, so that managers can visually check the outgoing plan.
According to the embodiment of the invention, after a planner plans the power grid according to the power demand, the manager carries out examination, approval, modification and other operations on a new power grid planning scheme through the management module; the butt joint of the service end and the approval end is realized, and the complexity of the process is further reduced. Meanwhile, the management module can also perform unified management on all newly added power grid planning and historical planning information, so that a manager can conveniently control the power grid planning information in a global manner, and the management degree of the power grid planning is improved.
In one embodiment, referring to fig. 5 and fig. 6, the management module 4 further includes an authority management unit 43, where the authority management unit 43 is configured to verify identity information of the user, and allow the user to log in the management module 4 after the identity information is verified; wherein the right management unit 43 includes a login unit 431 and an authentication unit 432;
the login unit 431 is used for acquiring identity information of a user;
the verification unit 432 is configured to verify the identity information of the user and output an identity verification result.
In the above embodiment of the present invention, since the newly added distribution network planning information relates to the development trend of multiple industries and multiple regions, where multiple benefits may be designed, the power grid planning information needs to be kept secret before the final implementation of the power grid planning scheme, so as to prevent information leakage; therefore, the management module is provided with a right management module for verifying login information of management personnel. The management personnel can enter the management module after passing the identity authentication, and the newly added distribution network planning information is approved and consulted, so that the reliability of the system is improved.
In one embodiment, the login unit 431 further includes a login information acquisition unit 4311 and a voice acquisition unit 4312,
the login information acquisition unit 4311 is configured to acquire login information of a user, where the login information includes a user name and a corresponding login password;
the voice collecting unit 4312 is configured to collect a voice verification signal of the user;
the authentication unit 432 further includes a login information authentication unit 4321 and a voice authentication unit 4322,
the login information verification unit 4321 is configured to verify login information of a user, compare and verify an obtained login password corresponding to the user name with a login password corresponding to the user name pre-stored in a database, and output a login information verification result;
the voice verification unit 4322 is configured to perform recognition processing on the collected voice verification signal, obtain a feature parameter of the voice verification signal, compare the feature parameter with a voice verification feature parameter corresponding to the user name and pre-stored in a database, and output a voice verification result.
The voice verification characteristic parameter corresponding to the user name pre-stored in the database is a characteristic parameter corresponding to a voice signal recorded by the user during registration.
Aiming at the security risks (such as password stealing) easily existing in the traditional login mode of only adopting a user name and a password, the embodiment of the invention provides a voice verification mode for further verifying the identity of a manager, so that the security of management authority is further improved.
In one embodiment, the voice verification unit 4322 further comprises: a preprocessing subunit 4323, an end point detection subunit 4324, a feature extraction subunit 4325, and a verification subunit 4326;
a preprocessing subunit 4323, configured to perform framing preprocessing on the received voice verification signal, and output a preprocessed voice verification signal, where the preprocessing includes framing, denoising, and enhancing processing of the voice verification signal;
an endpoint detection subunit 4324, configured to perform endpoint detection processing on the preprocessed voice verification signal, to obtain a voice starting point and a voice ending point of the voice verification signal, so as to obtain a voiced segment part of the voice verification signal;
a feature extraction subunit 4325, configured to perform feature extraction processing on the voiced segment portion of the voice verification signal, to obtain feature parameters of the voiced segment portion;
the verification subunit 4326 is configured to integrate the feature parameters of the voiced segment of the voice verification signal, compare the integrated voice parameters with the voice verification feature parameters corresponding to the user name and pre-stored in the database, and verify the voice parameters, thereby outputting a voice verification result.
In one embodiment, the verification unit 432 first performs a first step of login information verification according to login information input by a user, that is, a user name and a login password, after the first step of verification is passed, the verification unit 432 further drives the login unit 431 to collect a voice verification signal of the user, the verification unit 432 further performs voice verification on the voice verification signal, and after the second step of verification is passed, it is determined that the user identity verification is successful.
When the administrator registers, after the administrator registers the user name and the password, the administrator can freely input a voice signal containing any content (for example, the administrator reads out the voice signal of the name, the content of the voice signal can be freely determined by the administrator), and the system processes the voice signal, acquires the characteristic parameters of the voice signal, stores the characteristic parameters in the database, and binds the characteristic parameters with the user name. When the administrator needs to log in the management module, after the user name and the password are verified, a voice verification signal (such as a voice signal corresponding to the read name) with the same content needs to be further input, the voice verification signal is identified by the system, the acquired characteristic parameters are compared with the characteristic parameters in the database for verification, and when the verification result is consistent, the information verification of the administrator is carried out. The identity of the administrator is further verified through the voice verification mode, firstly, the voice content provided during registration is determined by the administrator, and the uncertain setting mode provides a first guarantee for information safety. Then, by means of comparing the characteristic parameters of the voice verification signal, even if the same content is read out, the characteristic parameters of the voice verification signal sent out by different people are different due to different characteristics of sound frequency and the like, so that a second guarantee is provided through the characteristics of the characteristic parameters of the voice verification signal. The information security of the system is further improved through double guarantee.
In one embodiment, the pre-processing subunit 4323 performs frame pre-processing on the received voice verification signal, and outputs a pre-processed voice verification signal, which specifically includes:
1) carrying out wavelet packet decomposition processing on the voice verification signal, wherein the wavelet packet decomposition is carried out by adopting a set wavelet basis and a wavelet decomposition scale;
2) carrying out threshold processing on the wavelet packet coefficient obtained by the maximum decomposition scale to obtain the wavelet packet coefficient after threshold processing;
3) reconstructing according to the wavelet packet coefficient after threshold processing to obtain a voice verification signal after preprocessing;
wherein, threshold processing is carried out on the wavelet packet coefficient obtained by the maximum decomposition scale, and the adopted threshold function is as follows:
in the formula (I), the compound is shown in the specification,
denotes the k-th wavelet packet coefficient after thresholding, wkThe k-th wavelet packet coefficient obtained by representing the maximum decomposition scale, sgn (·) represents a sign function, T represents a set threshold value, and a represents a set effect adjusting factor, wherein a is more than or equal to 0 and less than or equal to 1.
In the above embodiment of the present invention, when the administrator performs voice authentication to input the voice authentication signal, the administrator is inevitably interfered by the environmental noise. The preprocessing subunit performs enhancement processing on the voice verification signal by adopting the mode, firstly performs wavelet packet decomposition on the voice verification signal, and then performs threshold processing on a wavelet packet coefficient by adopting the improved threshold function, wherein the threshold function adopts a double-threshold mode to adapt to the wavelet packet coefficient in the voice verification signal, and particularly processes the characteristics of the wavelet packet coefficient of a high frequency band, so that the smoothness of the threshold processing function is improved, the fault condition existing in the traditional wavelet threshold processing is effectively avoided, the voice characteristic of the voice verification signal is reserved to the maximum extent, and the guarantee is provided for accurately identifying the voice verification signal later.
In one embodiment, the threshold T is specifically obtained by the following function:
where T represents the threshold in the threshold function, σ represents the standard deviation estimate of the noise,
med(wk) Denotes the median of wavelet packet coefficients in the maximum number of decomposition levels, N denotes the length of the wavelet packet coefficients, J denotes the number of decomposition levels of the maximum decomposition scale, mean (w)k) Mean value representing wavelet packet coefficient in maximum number of decomposition layers
According to the embodiment of the invention, aiming at the multi-scale wavelet packet decomposition of the voice verification signal, the threshold value function is adopted to reasonably set the threshold value, and the self-adaptive adjustment can be carried out according to the decomposition scale, so that the subjective uncertainty caused by adopting a fixed threshold value in the traditional threshold value setting process is avoided, and the voice verification signal and processing effect is indirectly improved.
In an embodiment, the endpoint detecting sub-unit 4324 performs endpoint detection on the pre-processed voice verification signal to obtain a voice starting point and a voice ending point of the voice verification signal, and specifically includes:
1) performing frame windowing on the preprocessed voice verification signal;
2) obtaining the short-time energy E of each frame of voice verification signal according to the amplitude of each frame of voice signaldIn which Ed(i) Representing the short-time energy of the voice verification signal of the ith frame;
3) obtaining the maximum value F of the amplitude of each frame of voice signald(i) In which F isd(i) Representing the maximum value of the amplitude of the voice verification signal of the ith frame, and calculating the maximum value F of the amplitude of the voice signal of each framed(i) Sorting from big to small to obtain a sorting set
Where u is 1,2, …, I denotes the total number of frames of the voice authentication signal,
representing the maximum value of the amplitude of the u-th speech signal in the sorted set;
4) after each frame of voice verification signal is subjected to Fourier transform, the frame of voice signal is divided into NbA number of sub-bands;
5) obtaining energy E of each sub-bandbWhereinEb(m, i) represents the sub-band energy of the mth sub-band in the ith frame of speech verification signal;
6) calculating an endpoint detection factor of each frame of voice signal based on short-time energy, sub-band energy and peak characteristics, wherein the adopted endpoint detection factor function is as follows:
wherein A (i) represents the endpoint detection factor of the ith frame voice verification signal, Ed(i) Representing the short-time energy of the voice verification signal of the ith frame,
represents the first in the above sorted set
The maximum value of the amplitude of the voice signal, I represents the total frame number of the voice verification signal,
representing a down-rounding function, sdRepresenting the average of the magnitudes of the voice verification signal of the i-th frame, Eb(m, i) represents the sub-band energy, P, of the mth sub-band in the ith frame of speech verification signalb(m, i) represents the self-band energy distribution density of the mth sub-band in the ith frame of voice verification signal;
7) respectively comparing the endpoint detection factors A (i) of each frame of voice verification signal with a set endpoint detection threshold value Z, and if the endpoint detection factors A (i) of 4 frames of voice verification signals continuously exist from a certain frame of voice verification signal and are all larger than the endpoint detection threshold value Z, marking the frame of voice verification signal as a voice starting point; continuing to detect, if the end point detection factors A (i) of 4 frames of voice verification signals continuously exist from a certain frame of voice verification signal and are all smaller than an end point detection threshold value Z, marking the frame of voice verification signal as a voice end point; the speech frame between the speech start point and the speech end point is marked as a voiced segment part.
In the above embodiment of the present invention, when the voiced segment part of the voice verification signal is obtained, the method performs endpoint detection on the voice verification signal, and by obtaining the short-time energy and the sub-band energy of the voice verification signal and creatively adding the peak value characteristic of the voice verification signal as the influence parameter of the endpoint detection factor, the improved endpoint detection factor function is used to accurately describe the endpoint characteristic in the voice verification signal, and the voice starting point and the voice ending point in the voice verification signal are accurately judged according to the endpoint detection factor, so that the accuracy of the endpoint detection of the voice verification signal is improved, the voiced segment part of the voice verification signal is accurately obtained, and the accuracy of the voice verification is indirectly improved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be analyzed by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A power distribution network planning service management information system based on gridding is characterized by comprising:
the information acquisition module is used for acquiring grid division information in a power distribution network area and acquiring economic evaluation basic data in each grid;
the in-grid analysis module is used for analyzing the current situation of the grid in the grid to obtain a topology analysis result, an N-1 analysis result and a power supply capacity analysis result of the grid;
the power consumption demand planning management module is used for acquiring newly-added power consumption planning information; planning a new substation outlet scheme by combining the analysis result of the in-grid analysis module on the current grid situation and the newly added power utilization planning information according to the economic evaluation basic data in the grid;
and the management module is used for auditing and managing the new substation outgoing line scheme.
2. The grid-based power distribution network planning service management information system according to claim 1, wherein the information collection module comprises: the grid divides the information unit and the basic data unit;
the grid division information unit is connected with the external function module and is used for acquiring grid division information from the external function module, wherein the grid division information comprises power distribution area GIS information, grid division information, power distribution equipment data in a grid, grid frame data, user data and power grid resource data;
the basic data unit comprises economic evaluation basic data stored in a grid, including evaluation result documents and related index data, such as project financial indexes, technical and economic indexes, reliability indexes and environment indexes.
3. The grid-based power distribution network planning service management information system according to claim 1, wherein the in-grid analysis module comprises a topology analysis unit, an N-1 analysis unit and a power supply capacity calculation unit;
the topology analysis unit is used for analyzing a power supply topology relation by calculating the direct power supply range of the upper power supply station and the lower load station, so as to calculate the ring opening point of a power grid, evaluate the power supply capacity of the current grid and analyze weak links of the grid;
the N-1 analysis unit is used for carrying out N-1 analysis on the grid structure in the grid, judging whether the grid structure meets the safety check of a line N-1, a main transformer N-1, a transformer substation complete stop and a bus N-1, and marking out grid structure information which does not meet the connection mode of N-1;
the power supply capacity calculating unit is used for calculating the power supply capacity of the power grid from multiple angles, and comprises the step of calculating the power supply capacity of the power grid under the condition of not considering the transmission capacity of the line, under the condition of considering the transmission capacity of the line at the outlet port or under the condition of considering the transmission capacity of the minimum line type.
4. The grid-based power distribution network planning service management information system according to claim 1, wherein the power consumption demand planning management module comprises a power consumption demand unit and a newly added outlet planning unit;
the power consumption demand unit is used for receiving newly-increased power consumption demand information, wherein the power consumption demand information comprises government power consumption information, temporary telegram loading information and customer service newly-increased load information;
and the newly added outgoing line planning unit is used for a manager to refer to the economic evaluation basic data in the grid, combine the analysis result of the analysis module in the grid on the current situation of the grid and newly added power demand information to plan a new substation outgoing line scheme.
5. The grid-based power distribution network planning service management information system of claim 1, wherein the management module is configured to perform audit management on the new substation outlet scheme, including modification, deletion, approval, query and maintenance on the new substation outlet scheme.
6. The grid-based power distribution network planning service management information system according to claim 5, wherein the management module comprises an auditing unit and a scheme management unit;
the auditing unit is used for auditing the new substation outlet scheme, and comprises the functions of modifying, deleting, examining and approving, inquiring and maintaining 10/20 KV cabinet outlet lines or 10/20 KV cabinet outlet lines of the newly-added distribution network infrastructure substation, and supporting electronic signature examination and approval and printing;
and the scheme management unit is used for managing planning information, approval information and drawing information of the new substation outgoing scheme, so that a manager can inquire, check and print the information.
7. The grid-based power distribution network planning service management information system according to claim 1, wherein the management module further comprises an authority management unit, the authority management unit is configured to verify identity information of a user, and allow the user to log in the management module after the identity information passes the authentication; wherein the right management unit comprises a login unit and an authentication unit;
the login unit is used for acquiring the identity information of the user;
the verification unit is used for verifying the identity information of the user and outputting an identity verification result.
8. The grid-based power distribution network planning service management information system according to claim 7, wherein the log-in unit further comprises a log-in information acquisition unit and a voice acquisition unit,
the login information acquisition unit is used for acquiring login information of a user, and the login information comprises a user name and a corresponding login password;
the voice acquisition unit is used for acquiring a voice verification signal of a user;
the authentication unit further includes a login information authentication unit and a voice authentication unit,
the login information verification unit is used for verifying login information of a user, comparing and verifying an obtained login password corresponding to the user name with a login password corresponding to the user name prestored in a database, and outputting a login information verification result;
the voice verification unit is used for identifying the collected voice verification signal, acquiring the characteristic parameter of the voice verification signal, comparing and verifying the characteristic parameter with the voice verification characteristic parameter corresponding to the user name and prestored in the database, and outputting a voice verification result.
9. The grid-based power distribution network planning service management information system according to claim 8, wherein the voice verification unit further comprises: the system comprises a preprocessing subunit, an endpoint detection subunit, a feature extraction subunit and a verification subunit;
the preprocessing subunit is configured to perform framing preprocessing on the received voice verification signal and output a preprocessed voice verification signal, where the preprocessing includes framing, denoising, and enhancing processing of the voice verification signal;
the endpoint detection subunit is used for performing endpoint detection processing on the preprocessed voice verification signal to obtain a voice starting point and a voice ending point of the voice verification signal so as to obtain a voiced segment part of the voice verification signal;
the feature extraction subunit is configured to perform feature extraction processing on the voiced segment portion of the voice verification signal to obtain feature parameters of the voiced segment portion;
and the verification subunit is used for integrating the characteristic parameters of the vocal section part of the voice verification signal, comparing and verifying the voice parameters obtained by integration with the voice verification characteristic parameters corresponding to the user name and prestored in the database, and outputting a voice verification result.
10. The system according to claim 9, wherein the endpoint detection subunit performs endpoint detection processing on the preprocessed voice verification signal to obtain a voice start point and a voice end point of the voice verification signal, and specifically includes:
1) performing frame windowing on the preprocessed voice verification signal;
2) obtaining the short-time energy E of each frame of voice verification signal according to the amplitude of each frame of voice signaldIn which Ed(i) Representing the short-time energy of the voice verification signal of the ith frame;
3) obtaining the maximum value F of the amplitude of each frame of voice signald(i) In which F isd(i) Representing the maximum value of the amplitude of the voice verification signal of the ith frame, and calculating the maximum value F of the amplitude of the voice signal of each framed(i) Sorting from big to small to obtain a sorting set
Where u 1,2, I represents the total number of frames of the voice verification signal,
representing the maximum value of the amplitude of the u-th speech signal in the sorted set;
4) after each frame of voice verification signal is subjected to Fourier transform, the frame of voice signal is divided into NbA number of sub-bands;
5) obtaining energy E of each sub-bandbIn which Eb(m, i) represents the sub-band energy of the mth sub-band in the ith frame of speech verification signal;
6) calculating an endpoint detection factor of each frame of voice signal based on short-time energy, sub-band energy and peak characteristics, wherein the adopted endpoint detection factor function is as follows:
wherein A (i) represents the endpoint detection factor of the ith frame voice verification signal, Ed(i) Representing the short-time energy of the voice verification signal of the ith frame,
represents the first in the above sorted set
The maximum value of the amplitude of the voice signal, I represents the total frame number of the voice verification signal,
representing a down-rounding function, sdRepresenting the average of the magnitudes of the voice verification signal of the i-th frame, Eb(m, i) represents the sub-band energy, P, of the mth sub-band in the ith frame of speech verification signalb(m, i) represents the self-band energy distribution density of the mth sub-band in the ith frame of voice verification signal;
7) respectively comparing the endpoint detection factors A (i) of each frame of voice verification signal with a set endpoint detection threshold value Z, and if the endpoint detection factors A (i) of 4 frames of voice verification signals continuously exist from a certain frame of voice verification signal and are all larger than the endpoint detection threshold value Z, marking the frame of voice verification signal as a voice starting point; continuing to detect, if the end point detection factors A (i) of 4 frames of voice verification signals continuously exist from a certain frame of voice verification signal and are all smaller than an end point detection threshold value Z, marking the frame of voice verification signal as a voice end point; the speech frame between the speech start point and the speech end point is marked as a voiced segment part.
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