CN110942161B - Method for improving power supply reliability based on business middle station - Google Patents
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Abstract
The invention relates to the technical field of power grids, in particular to a method for improving power supply reliability based on a service center. The invention comprises a method for establishing a standard service middle platform, establishing a standardized net rack module and improving the reliability in power failure maintenance and repair. The invention realizes the information fusion and utilization of the service platform and the standardized net rack module by establishing the service middle platform and the standardized net rack module, thereby optimizing the power failure transformation project during maintenance and repair and improving the power supply reliability.
Description
Technical Field
The invention relates to the technical field of power grids, in particular to a method for improving power supply reliability based on a service center.
Background
The power supply reliability management method used by the domestic power supply company at present is a management mode combining a system and manpower. In the aspect of system management, the steps of basic information input, line segmentation, line region characteristic division and the like of line equipment in the system are finished mainly by means of an electric energy quality online monitoring system (hereinafter referred to as a "reliability system") in a system import or manual input mode, and a basic ledger of the equipment and the line is formed. The power distribution transformer power failure information is extracted from a power distribution transformer acquisition terminal by means of a power consumption information acquisition system of a power consumer, and a specific power failure event is generated once a power failure record is recorded. And then, the maintenance personnel manually classify the types of the events, mark the reasons of power failure, and perform centralized statistical analysis after entering the system. In the aspect of manual management, managers are promoted through management means, a series of specified specifications of reliability management and control are provided, and optimization in the aspects of net rack planning, equipment operation, equipment maintenance, fault first-aid repair and the like is enhanced.
However, the existing method is limited by multiple aspects such as data authenticity, data barriers, statistical logic, personnel quality, regional differences and the like, and cannot effectively and reliably manage the power supply system when a planned maintenance power failure or an abnormal power failure occurs.
A method for improving power supply reliability with good integrity and high degree of truth is urgently needed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for improving the power supply reliability based on a service center. The invention realizes the information fusion and utilization of the service platform and the standardized net rack module by establishing the service middle platform and the standardized net rack module, thereby optimizing the power failure reconstruction project during maintenance and repair and improving the power supply reliability.
The technical scheme of the invention is as follows: a method for improving power supply reliability based on a service center is characterized in that: the method comprises the following steps:
step a, establishing a standard service center station, and integrating a 10kV/400V circuit topological structure, equipment ledger information and marketing acquisition system information in a dispatching and power distribution automatic system by the service center station;
step b, establishing a standardized net rack module, evaluating different business middlings, and performing differential improvement, specifically comprising the following steps,
establishing a standardized net rack module, wherein the standardized net rack module comprises a net rack structure, a transfer power supply capacity, a load condition and power supply radius data, and the standardized net rack module analyzes the net rack structure of the system and the states of elements contained in the net rack structure, so that the health evaluation of the power distribution net rack is realized; establishing a unified data model and an evaluation standard in different service middlings, and checking by using a standardized net rack module to form a unified service middling;
step c, a method for improving reliability in power failure overhaul and maintenance comprises the following steps: analyzing the running state of the equipment according to the test data, the historical records, the fault reports and the on-line parameters of the distribution network equipment to obtain the health condition index of the equipment; diagnosing the critical degree of the defects of the power distribution equipment according to the defect classification of the power distribution equipment; evaluating the weak line range of the net rack according to the evaluation principle of the standardized net rack module; and then the health condition of the equipment, the critical degree of the defects and the weak line range of the net rack are fed back to the business middle platform, and the business middle platform generates a modification project.
The method for improving power supply reliability based on the service center is characterized in that: the service center also collects the fault maintenance time, the number of equipment maintenance personnel and the number of equipment models.
The method for improving power supply reliability based on the service center is characterized in that: and (c) setting weighting coefficients for the health condition of the equipment, the critical degree of the defect and the weak index of the net rack in the step (b).
The method for improving the power supply reliability based on the service center is characterized in that: a user loss factor is also included.
The method for improving power supply reliability based on the service center is characterized in that: and d, a step d of managing and controlling fault power failure, wherein after the fault power failure occurs, the fault position is positioned through the service middle platform and the standardized net rack module.
The invention has the beneficial effects that: the method has the advantages that firstly, the contradiction between the shortage of the distribution network resource configuration capability and the rapid change of the customer service demand is solved, and the requirement on power supply reliability is improved by automatically judging the fault area and rapidly isolating and recovering power supply. Secondly, the data processing pressure of the main station is reduced and the information acquisition speed of operation and maintenance personnel is improved through the calculation of the middle stations in different services. And thirdly, interconnection and intercommunication are realized in service systems of different departments, the integration and application capability of information effect is improved on the basis that the power distribution network is observable and controllable, and the intelligent adjustment of power supply quality and reliability is realized. Fourthly, the problems that part of line net rack structures are unreasonable, few in segmentation and long in power supply radius are solved, distribution net rack distribution tends to be reasonable, line power supply reliability is improved, and distribution network electric energy loss is reduced.
Detailed Description
Name interpretation: all English words of PMS are Power Management System, which is a Power Management System and is a lean Management System for the operation and maintenance of equipment (assets) of the national Power grid.
The technical solution of the present invention is further explained below.
The method for improving the power supply reliability based on the service center station comprises the following steps:
firstly, medium and low voltage service data are fused, the medium voltage refers to equipment between 10kV and 400V, and the low voltage refers to equipment below 400V. The specific fusion method comprises the following steps:
step a, establishing a standard business middle station, wherein the business middle station can also be called a power supply service command system, and integrating data of three aspects including a 10kV/400V line topological structure in a dispatching and power distribution automation system; the table box number, the table number and equipment ledger information in the distribution network PMS; the marketing adopts the user information, the table number and the meter box number in the system; various data are fused together, so that the position state of a certain device can be known through a line topological structure, the downstream meter box number, the meter number, the user information and the like corresponding to the device can be known, for example, the transformer device of a certain cell generally marks the position in the existing line topological structure, and only the user information for supplying power is needed to be fused into the existing line topological structure. Therefore, the service center of the invention can be mutually associated with the original automatic system, PMS system and marketing system, and mutually coordinated and changed together when the equipment is changed and the user is changed, thereby establishing the service center sharing the real-time data of the distribution network. The service center station can collect all professional data, such as fault maintenance time, the number of equipment maintenance personnel, the number of equipment models and other information, and generate a 'full-service drawing' for field operation and maintenance personnel by one key, and can collect feedback opinions used by operators and send the feedback opinions to all service systems (such as a dispatching distribution automation system, a distribution network PMS system and a marketing acquisition system) to update the data on site.
Step b, establishing a standardized net rack module, evaluating different business middlings, and performing differential improvement, specifically comprising the following steps,
and establishing a standardized net rack module, wherein the standardized net rack module comprises a net rack structure, the conversion supply capacity, the load condition, the power supply radius and other data, and the standardized net rack module can analyze the net rack structure of the system and the states of the contained elements to realize the health assessment of the power distribution net rack.
And establishing a unified data model and an evaluation standard in different service middlings, inputting a PMS drawing into the data model and the evaluation standard, checking by using a standardized net rack module, outputting inconsistent net rack parts to engineering projects, and performing differential transformation to form the unified service middlings. And (4) for the transformed and formed net rack, performing rolling repair and configuration of power grid planning according to index analysis of scale, reliability, power supply capacity, power supply quality, equipment operation condition and the like before and after transformation.
Step c, a method for improving reliability in power failure overhaul and maintenance comprises the following steps:
analyzing the running state of the equipment according to the test data, the historical records, the fault reports and the on-line parameters of the distribution network equipment to obtain the health condition index of the equipment; diagnosing the critical degree of the defects of the power distribution equipment according to the defect classification of the power distribution equipment; evaluating the weak line range of the net rack according to the evaluation principle of the standardized net rack module;
then, the health condition of the equipment, the critical degree of the defects and the weak line range of the net rack are fed back to a business center station, the business center station generates a transformation project, and differential maintenance is arranged; project personnel can carry out project improvement according to data of the service center station, compile a power failure scheme, make a power failure plan according to the power failure scheme, and upload the power failure plan to the service center station. If a certain area meets the condition that the power is repeatedly cut off for less than three times within two months, the power cut plan short message is sent to be perceived by a client after the business center station checks that the power is correct. This step carries out overall planning to the power failure and the maintenance that have the plan, and index such as equipment health status, defect emergency degree, rack are weak can set up the weighting coefficient, optimizes customer's concern through the weighting coefficient, promotes customer's perception, reduces the unnecessary power failure. The step can also comprise a user loss coefficient, wherein the user loss coefficient is the loss degree caused by power failure to the user, if the influence of the power failure on the client is large at high temperature or low temperature, the weather condition is collected by a service center station during maintenance and overhaul, the influence degree on the client under the weather condition is given, and the maintenance plan can be suspended under the conditions that the equipment health condition is high and the defect critical degree is not high, so that the power failure is caused in heavy snow or too hot weather, and the power supply stability is improved under the condition that the safe operation of a power grid is not reduced.
Step d, managing and controlling fault power failure
After the power failure occurs, the position can be quickly positioned through the service middle platform and the standardized net rack module, the reason that the failure possibly exists is given, if the power failure occurs in a certain cell, whether other equipment except the cell is normal can be judged through the standardized net rack module, primary equipment (instruments for managing all the equipment) for supplying power to the cell is damaged, secondary power supply equipment (instruments for managing partial areas) for supplying power to the cell does not need to be maintained, and the power failure area can be timely positioned through the fusion of the service middle platform and the standardized net rack module. Meanwhile, after the power failure occurs, the influence range of the fault can be known after the power failure, the user influenced by the power failure can be found in time through the fusion with the user information, the user is informed by the short message, and the user perception is improved. When a large-scale power failure accident occurs, the system can preferentially maintain key customers such as hospitals and schools according to the importance degree of users, so that the problem that effective maintenance cannot be carried out during large-scale power failure is solved.
The business middle platform and the standardized net rack module are fused, so that after a fault point can be accurately positioned by a system, operation and maintenance personnel can carry out active first-aid repair according to a data result; after the accident occurs, reason analysis is carried out, a fault analysis report is generated and fed back to the service central station, and the fault analysis report is associated with the power failure event, so that a system resource library is continuously enriched. The system of the invention can count all fault types and areas with multiple faults according to time nodes, and return the storage information of the service center to guide future operation and maintenance work.
Claims (4)
1. A method for improving power supply reliability based on a service center is characterized in that: the method comprises the following steps:
step a, establishing a standard service center station, wherein the standard service center station integrates a 10kV/400V circuit topological structure, equipment ledger information and marketing acquisition system information in a dispatching and power distribution automatic system;
step b, establishing a standardized net rack module, evaluating the service middlings with different standards, and performing differential improvement, specifically comprising the following steps,
establishing a standardized net rack module, wherein the standardized net rack module comprises a net rack structure, a transfer power supply capacity, a load condition and power supply radius data, and the standardized net rack module analyzes the net rack structure of the system and the states of elements contained in the net rack structure, so that the health evaluation of the power distribution net rack is realized; establishing a unified data model and an evaluation standard in service middlings with different standards, and checking by utilizing a standardized net rack module to form a unified service middling;
step c, a method for improving reliability in power failure overhaul and maintenance comprises the following steps: analyzing the running state of the equipment according to the test data, the historical records, the fault reports and the on-line parameters of the distribution network equipment to obtain the health condition index of the equipment; diagnosing the critical degree of the defects of the power distribution equipment according to the defect classification of the power distribution equipment; evaluating the weak line range of the net rack according to the evaluation principle of the standardized net rack module; and then the health condition of the equipment, the critical degree of the defect and the weak line range of the net rack are fed back to the business middle platforms of the relevant standards, the business middle platforms of the relevant standards generate transformation projects, the method also comprises a step d of managing and controlling the fault power failure, and after the fault power failure occurs, the fault position is positioned through the unified business middle platforms and the standardized net rack modules.
2. The method for improving power supply reliability based on the service center according to claim 1, wherein: the standard service center also collects the fault maintenance time, the number of equipment maintenance personnel and the number of equipment models.
3. The method for improving power supply reliability based on the service center according to claim 1, wherein: and c, setting weighting coefficients for the health condition of the equipment, the critical degree of the defect and the weak index of the net rack in the step c.
4. The method for improving power supply reliability based on the service center according to claim 1, wherein: and step c also comprises a user loss coefficient, wherein the user loss coefficient is the loss degree of the user caused by power failure.
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| CN104638764A (en) * | 2015-01-22 | 2015-05-20 | 国家电网公司 | Intelligent state diagnosis and overhauling system for power distribution network equipment |
| CN106815647A (en) * | 2016-12-28 | 2017-06-09 | 国家电网公司 | A kind of high efficiency distribution network failure repairing system and method based on data analysis |
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| CN104638764A (en) * | 2015-01-22 | 2015-05-20 | 国家电网公司 | Intelligent state diagnosis and overhauling system for power distribution network equipment |
| CN106815647A (en) * | 2016-12-28 | 2017-06-09 | 国家电网公司 | A kind of high efficiency distribution network failure repairing system and method based on data analysis |
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