CN114006952A - New energy power generation key equipment test data comprehensive analysis system and method - Google Patents
New energy power generation key equipment test data comprehensive analysis system and method Download PDFInfo
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- CN114006952A CN114006952A CN202111233687.XA CN202111233687A CN114006952A CN 114006952 A CN114006952 A CN 114006952A CN 202111233687 A CN202111233687 A CN 202111233687A CN 114006952 A CN114006952 A CN 114006952A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
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- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis
Abstract
The invention provides a new energy power generation key equipment test data comprehensive analysis system and a new energy power generation key equipment test data comprehensive analysis method. The method and the system realize automatic import of the new energy power generation multi-type equipment and a database of data, overcome the problems of various new energy power generation tests and different equipment communication protocols, and overcome the problems that data needs to be manually exported in data analysis and display and the mechanical repetitive work is heavy; the efficiency of new energy power generation test work is greatly improved; the accuracy of new energy power generation grid connection performance analysis is greatly improved; the method and the device realize the association display among the data, greatly enhance the display effect of the data and provide great convenience for test analysts.
Description
Technical Field
The invention relates to new energy power generation, in particular to a system and a method for comprehensively analyzing test data of key equipment of new energy power generation.
Background
The access of large-scale new energy power generation brings challenges to the operation of a power grid, and laboratory and field tests on the performance of the new energy power generation are one of important means for guaranteeing the safe and stable operation of the power grid after the large-scale new energy power generation is accessed before the new energy power generation is connected to the grid. The new energy power generation tests are various, communication protocols adopted by field experiment test equipment are different, most of the equipment has no functions of data real-time analysis and comprehensive display, data analysis and display need to be manually exported during field experiment detection, and mechanical repeatability is heavy; in the process, because the data transmission of the test equipment is different, some equipment data cannot be exported so far and can only be exported in a screenshot or photographing mode, and the subsequent data analysis and multi-dimensional comprehensive display are disturbed. On the other hand, the test equipment is mostly simple two-dimensional display, namely, the X axis is a time axis, the Y axis is a measurement quantity, the test data lack correlation, and the data are not subjected to combing and correlation analysis to form an association relation for comprehensive analysis and display. In addition, the content of new forms of energy power generation test is more, and experimental bad data takes place occasionally, if the scene can in time be to test data analysis and show, will in time provide the first hand test experiment quality information for the experimenter, avoids because bad data influence repeated field test, the extravagant resource.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a new energy power generation key equipment test data comprehensive analysis system and a new energy power generation key equipment test data comprehensive analysis method, so that the problems that new energy power generation tests are various and equipment communication protocols are different are solved, and the problems that data needs to be manually exported in data analysis and display and mechanical repetitive work is heavy are solved.
The technical scheme is as follows: the invention relates to a new energy power generation key equipment test data comprehensive analysis system, which comprises:
equipment test data interface: the method comprises the steps that various communication protocols, such as 103, 104, Modbus, PMU and the like, which are suitable for communication of the new energy power generation key equipment are integrated and modularly managed, a user selects a corresponding communication protocol according to the tested new energy power generation equipment, automatic interaction of the new energy power generation equipment and a hardware terminal of a new energy power generation key equipment test data comprehensive analysis system is completed, and automatic importing of operation data of the new energy power generation equipment in a certain time period into a data relevance analysis module and a data quality checking and repairing module is achieved.
The data relevance analysis module: and analyzing the data correlation by adopting a statistical method on the same-time intermittent test data of the new energy power generation similar equipment and the test data of the same equipment at different time periods to obtain data mapping which can be used for mutual verification and substitution, and transmitting the result to a data quality checking and repairing module.
The data quality checking and repairing module comprises: and scanning and analyzing the test data of the new energy power generation equipment, identifying abnormal data including generation numbers, dead numbers and the like, repairing the abnormal data by adopting a substitution method or an average value method based on the result provided by the data correlation analysis module, and transmitting the result to the index data calculation and check module.
Grid-connected evaluation index generation module: and generating a new energy power generation grid-connected performance evaluation index set by combining user self-definition according to publicly issued standards and regulations, and transmitting results to an index data calculation and check module and a grid-connected performance standard conformance analysis module.
The index data calculation and check module: and carrying out effective value analysis and calculation on the result transmitted by the data quality checking and repairing module, mutually checking and correcting the calculated result by utilizing redundant information of the equipment multi-dimensional test data, and transmitting the result to the grid-connected performance standard conformity analysis module and the grid-connected performance comprehensive analysis module.
A grid-connected performance standard conformance analysis module: and according to publicly released standards and regulations, the standard conformity of the new energy power generation grid-connected performance is judged, and the result is output to a grid-connected performance multi-dimensional comprehensive display module.
The grid-connected performance comprehensive analysis module comprises: according to publicly released standards and regulations, a new energy power generation grid-connected performance comprehensive analysis strategy set is constructed, a user self-defines and selects to set a grid-connected performance analysis condition, comprehensive analysis is carried out on new energy power generation grid-connected performance, and an analysis result is transmitted to a grid-connected performance multi-dimensional comprehensive display module.
The grid-connected performance multi-dimensional comprehensive display module comprises: and carrying out time scale normalization processing on the new energy power generation grid-connected performance index analysis result data and the generated index set data, and carrying out customized display and output on the analysis result by combining user self definition according to the output of the grid-connected performance standard conformity analysis module and the grid-connected performance comprehensive analysis module.
In addition, the invention also discloses a method for operating the system, which is based on the multi-type communication protocol integration module, directly tests the operation of the new energy power generation multi-type equipment, and performs standard conformance analysis and comprehensive analysis on the new energy power generation grid-connection performance on the basis of the issued new energy power generation grid-connection and power grid operation requirements.
The method specifically comprises the following steps:
step 1: and completing the test of the operation of the new energy power generation multiple devices by selecting a communication protocol by a user, and writing the test data into a new energy power generation key device test data comprehensive analysis system database.
Step 2: and performing relevance analysis on the test data, checking the data quality of the test data according to the relevance analysis result, and repairing abnormal data.
And step 3: and generating a new energy power generation grid-connected performance index set by combining user self-definition according to publicly released standards and regulations.
And 4, step 4: and calculating the corresponding new energy power generation grid-connected performance according to the new energy power generation grid-connected performance index set, and checking the calculation result by using the redundant information of the test data.
And 5: and constructing a new energy power generation grid-connected performance comprehensive analysis strategy set according to publicly released standards and regulations.
Step 6: and carrying out standard conformance analysis and comprehensive analysis on the new energy power generation grid-connected performance, outputting and displaying the standard conformance analysis and the comprehensive analysis on the new energy power generation grid-connected performance, and the user self-defines the selection condition according to the new energy power generation grid-connected performance comprehensive analysis strategy set.
Has the advantages that: compared with the prior art, the invention has the following advantages:
1. according to the communication interface condition of the new energy power generation equipment, multiple communication protocols are integrated instead of a specific communication protocol, so that automatic import of a database of new energy power generation multi-type equipment and data is realized, the problems of various new energy power generation tests and different equipment communication protocols are solved, and the problems of manual data export and heavy mechanical repetitive work of data analysis and display are solved;
2. the new energy power generation grid-connected performance analysis is based on effective values, the new energy power generation test data are basically instantaneous values, the system can generate corresponding effective values by one key of instantaneous measurement values of equipment operation, complex processes such as data derivation, decoding and effective value analysis are not needed, and the efficiency of new energy power generation test work is greatly improved;
3. for abnormal data in the test data of the new energy power generation equipment, the conventional method is to directly delete the abnormal data, or repair the abnormal data based on the data before and after the abnormal data sequence through a substitution method, an average value method and the like, and if more abnormal data appear in a certain time period, the accuracy of the method is greatly reduced. In the system, the abnormal data in the new energy power generation test data are repaired by utilizing the correlation of the new energy power generation equipment test data, so that the basis of repairing the data is more sufficient, and the accuracy of the new energy power generation grid-connected performance analysis is greatly improved;
4. the traditional test equipment is mostly simple two-dimensional display, namely, the X axis is a time axis, the Y axis is a measurement quantity, correlation between test data is lacked, data are not subjected to combing and correlation analysis to form an association relation, and comprehensive analysis and display are carried out.
Drawings
Fig. 1 is an operation schematic diagram of a new energy power generation key equipment test data comprehensive analysis system.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
The invention provides a new energy power generation key equipment test data comprehensive analysis system and an operation method thereof, and the technical scheme in the embodiment of the application is clearly and completely described below by combining the attached drawings in the embodiment of the application. FIG. 1 shows a schematic operation diagram of a new energy power generation key equipment test data comprehensive analysis system.
The new energy power generation key equipment test data comprehensive analysis system comprises an equipment test data interface, a data correlation analysis module, a data quality checking and repairing module, a grid-connected evaluation index generation module, an index data calculation and checking module, a grid-connected performance standard conformity analysis module, a grid-connected performance comprehensive analysis module and a grid-connected performance multi-dimensional comprehensive display module.
The new energy power generation key equipment test data comprehensive analysis system provides various communication protocols such as 103, 104, Modbus and PMU, a user selects a corresponding communication protocol according to tested new energy power generation equipment, operation data of the new energy power generation equipment in a certain time period are automatically imported into a new energy power generation key equipment test data comprehensive analysis system database, and information interaction is carried out between the new energy power generation equipment test data comprehensive analysis system database and the data correlation analysis module and the data quality checking and repairing module. Analyzing the correlation of data by adopting a statistical method aiming at the same equipment and the same equipment at the same time interval test data and the same equipment at different time intervals test data to obtain data mapping which can be used for mutual verification and substitution; and scanning and analyzing the tested data, identifying abnormal data including the number of generations, the number of deaths and the like, and repairing the abnormal data by adopting a substitution method or an average value method.
And (3) carrying out effective value calculation on the test data, wherein the calculation method is as follows (taking A phase voltage as an example):
extracting fundamental wave components by Fourier transform.
And secondly, extracting a fundamental wave positive sequence component through positive and negative sequence transformation.
Wherein:
and thirdly, calculating the active power and the reactive power of the fundamental positive sequence component.
And fourthly, calculating the effective values of the active current and the reactive current of the fundamental positive sequence component.
According to GB/T19963 technical provisions for accessing wind power plants to an electric power system, GB/T19964 technical provisions for accessing photovoltaic power stations to the electric power system, GB38755 safety and stability guide rules for electric power systems, DL755 safety and stability guide rules for electric power systems, GB/T26399 technical guide rules for safety and stability control of electric power systems, and GB/T31464 electric network operation criteria, a new energy power generation grid-connection performance evaluation index set is generated by combining user self-definition. And calculating the new energy power generation grid-connected performance according to the index set, and mutually checking the calculated result by utilizing the redundant information of the equipment multi-dimensional test data to ensure the accuracy of the new energy power generation grid-connected performance analysis result.
The method is used for analyzing the conformity of the new energy power generation grid-connected standard based on GB/T19963 technical regulation of wind power plant access electric power system and GB/T19964 technical regulation of photovoltaic power plant access electric power system. According to GB/T19963 technical provisions for accessing wind power plants to an electric power system, GB/T19964 technical provisions for accessing photovoltaic power stations to an electric power system, GB38755 safety and stability guide rules for an electric power system, DL755 safety and stability guide rules for an electric power system, GB/T26399 technical guide rules for safety and stability control of an electric power system and GB/T31464 power grid operation criteria, a comprehensive analysis strategy set for the grid-connected performance of new energy power generation is constructed, and based on the set, a user selects and sets grid-connected performance analysis conditions in a customized manner to comprehensively analyze the grid-connected performance of new energy power generation.
And carrying out time scale normalization processing on the new energy power generation grid-connected performance index analysis result data and the generated index set data, and carrying out customized display and output on the analysis result by combining user self definition according to the output of the grid-connected performance standard conformity analysis module and the grid-connected performance comprehensive analysis module.
Claims (13)
1. The utility model provides a new forms of energy electricity generation key equipment test data integrated analysis system which characterized in that, this system includes:
equipment test data interface: transmitting the operation data of the new energy power generation key equipment to a data correlation analysis module and a data quality checking and repairing module;
the data relevance analysis module: analyzing the relevance of the test data of the new energy power generation equipment, and outputting the analysis result to a data quality checking and repairing module;
the data quality checking and repairing module comprises: judging and repairing abnormal data in the new energy power generation equipment test data, and transmitting the result to an index data calculation and check module;
grid-connected evaluation index generation module: generating a new energy power generation grid-connected performance evaluation index set by combining user self-definition according to publicly issued standards and regulations, and transmitting results to an index data calculation and check module and a grid-connected performance standard conformance analysis module;
the index data calculation and check module: calculating and checking the new energy power generation grid-connected performance required by the index, and transmitting the result to a grid-connected performance standard conformity analysis module and a grid-connected performance comprehensive analysis module;
a grid-connected performance standard conformance analysis module: according to publicly released standards and regulations, the standard conformity of the new energy power generation grid-connected performance is judged, and the result is output to a grid-connected performance multi-dimensional comprehensive display module;
the grid-connected performance comprehensive analysis module comprises: carrying out multidimensional analysis on the new energy power generation grid connection performance, and transmitting the analysis result to a grid connection performance multidimensional comprehensive display module;
the grid-connected performance multi-dimensional comprehensive display module comprises: and displaying and outputting results of the grid-connected performance standard conformity analysis module and the grid-connected performance comprehensive analysis module.
2. The system according to claim 1, wherein the device test data interface integrates and modularizes multiple types of communication protocols such as 103, 104, Modbus, PMU and the like adapted to the communication of the new energy power generation key device, and a user can select a corresponding communication protocol according to the tested new energy power generation device, so as to complete the automatic interaction between the new energy power generation device and the hardware terminal of the new energy power generation key device test data comprehensive analysis system, and realize the automatic importing of the new energy power generation device operation data at a certain time period to the data correlation analysis module and the data quality checking and repairing module.
3. The system according to claim 1, wherein the data correlation analysis module analyzes the correlation of the data by using a statistical method on the same-time intermittent test data of the new energy power generation similar equipment and the test data of the same equipment at different time periods to obtain a data map which can be used for mutual verification and substitution, and transmits the result to the data quality verification and restoration module.
4. The system of claim 1, wherein the data quality verification and repair module performs scanning analysis on new energy power plant test data to identify abnormal data including birth number, death number and the like.
5. The system of claim 1, wherein the data quality verification and repair module repairs the abnormal data by using a substitution method or an average value method based on the result provided by the data relevance analysis module.
6. The system according to claim 1, wherein the grid-connected evaluation index generation module automatically generates a new energy power generation grid-connected performance evaluation index set according to user-defined standards of GB/T19963 technical Specification for accessing a wind power plant into an electric power system, GB/T19964 technical Specification for accessing a photovoltaic power station into an electric power system, GB38755 guide rules for safety and stability of an electric power system, DL755 guide rules for safety and stability of an electric power system, GB/T26399 guide rules for safety and stability control of an electric power system, and GB/T31464 guide rules for operation of a power grid.
7. The system according to claim 1, wherein the index data calculation and check module performs effective value analysis and calculation on the result transmitted by the data quality check and repair module, and performs mutual check on the calculated result by using redundant information of the device multidimensional test data, so as to ensure the accuracy of the new energy power generation grid-connection performance analysis result.
8. The system according to claim 1, wherein the grid-connected performance standard conformity analysis module analyzes new energy power generation grid-connected standard conformity based on GB/T19963 technical Specification for accessing wind power plants to an electric power system and GB/T19964 technical Specification for accessing photovoltaic power plants to an electric power system.
9. The system according to claim 1, wherein the grid-connected performance comprehensive analysis module constructs a new energy power generation grid-connected performance comprehensive analysis strategy set according to GB/T19963 technical Specification for accessing wind power plants to an electric power system, GB/T19964 technical Specification for accessing photovoltaic power stations to an electric power system, GB38755 safety and stability guide rule for an electric power system, DL755 safety and stability guide rule for an electric power system, GB/T26399 safety and stability control technical guide rule for an electric power system, and GB/T31464 grid operation criterion for user-defined selection.
10. The system according to claim 1, wherein the grid-connected performance multidimensional comprehensive display module performs time scale normalization processing on new energy power generation grid-connected performance index analysis result data and generated index set data to support multidimensional comprehensive display of analysis results of different requirements.
11. The system according to claim 1, wherein the grid-connected performance multi-dimensional comprehensive display module supports a user to self-define a display and output scheme according to a new energy power generation grid-connected performance comprehensive analysis strategy set, and displays and outputs a result.
12. A method for operating the system according to any one of claims 1 to 11, wherein the operation of the new energy power generation multi-type equipment is directly tested based on the multi-type communication protocol integration module, and the standard conformance analysis and the comprehensive analysis are performed on the new energy power generation grid-connection performance based on the issued new energy power generation grid-connection and power grid operation requirements.
13. The method according to claim 12, characterized in that it comprises in particular the steps of:
step 1: the method comprises the steps that a user selects a communication protocol to complete the test of the operation of the new energy power generation multiple devices, and test data are written into a new energy power generation key device test data comprehensive analysis system database;
step 2: performing relevance analysis on the test data, checking the data quality of the test data according to the relevance analysis result, and repairing abnormal data;
and step 3: generating a new energy power generation grid-connected performance index set by combining user self-definition according to publicly released standards and regulations;
and 4, step 4: calculating corresponding new energy power generation grid-connected performance according to the new energy power generation grid-connected performance index set, and checking a calculation result by using redundant information of the test data;
and 5: according to publicly released standards and regulations, a new energy power generation grid-connected performance comprehensive analysis strategy set is constructed;
step 6: and aiming at the new energy power generation grid connection standard quantization index and the user-defined selection condition according to the new energy power generation grid connection performance comprehensive analysis strategy set, carrying out standard conformity analysis and comprehensive analysis on the new energy power generation grid connection performance, and outputting and displaying the standard conformity analysis and the comprehensive analysis.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108847682A (en) * | 2018-06-15 | 2018-11-20 | 中国电力科学研究院有限公司 | A kind of grid-connected performance estimating method of photo-voltaic power generation station based on operation data and system |
| CN109742788A (en) * | 2018-12-18 | 2019-05-10 | 国网青海省电力公司电力科学研究院 | A kind of grid-connected Performance Evaluating Indexes modification method of new energy power station |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847682A (en) * | 2018-06-15 | 2018-11-20 | 中国电力科学研究院有限公司 | A kind of grid-connected performance estimating method of photo-voltaic power generation station based on operation data and system |
| CN109742788A (en) * | 2018-12-18 | 2019-05-10 | 国网青海省电力公司电力科学研究院 | A kind of grid-connected Performance Evaluating Indexes modification method of new energy power station |
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