CN202720323U - Distributive power supply synchronization detection system - Google Patents
Distributive power supply synchronization detection system Download PDFInfo
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- CN202720323U CN202720323U CN 201220321653 CN201220321653U CN202720323U CN 202720323 U CN202720323 U CN 202720323U CN 201220321653 CN201220321653 CN 201220321653 CN 201220321653 U CN201220321653 U CN 201220321653U CN 202720323 U CN202720323 U CN 202720323U
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Abstract
The utility model relates to a distributive power supply synchronization detection system which comprises a master control unit, a simulated scheduling communication unit, a power quality disturbance unit, a power parameter signal collection unit and a detection analysis unit; the master control unit controls synchronization detection to conduct and record sequentially according to designated projects; the simulated scheduling communication unit receives a master control unit command to simulate a scheduling command of a main power supply network to as to communicate with a distributive power supply for facilitating detection; the power quality disturbance unit receives the master control unit command to generate disturbance of voltage, frequency, current and the like; and the power parameter signal collection unit collects the power parameter data of synchronization points. A synchronization detection project is divided into an automatic detection project and a manual detection project, the automatic detection project is detected by a detector, the result of the manual detection project is then combined to detect whether the distributive power supply meets the standard requirements on accessing to a regional power supply network, and a detection report and detection suggestion conclusions are provided for synchronization detection managers for reference, thereby improving the working efficiency.
Description
Technical field
The utility model relates to a kind of pick-up unit, relates in particular to a kind of distributed power source detection system that is incorporated into the power networks.In addition, the utility model also relates to a kind of distributed power grid and network detecting method.
Background technology
Distributed power source (Distributed Generation, DG) is the forms of electricity generation that is different from traditional centralized power generation, long-distance transmissions and large internet.DG be often referred to power for the small modules formula of number kW～50MW, be distributed near the load, with the independent current source of environmental compatible, by power department, user or third party all, with the power generating equipment of the particular requirement that satisfies electric system and user.
On scale, DG refers to any installation and is distributed near the small power generation facility of user, comprise small-sized conventional electric generators group, the small-sized generators such as combustion gas turbine, or utilize little power supply of regenerative resource, mainly comprise wind-power electricity generation, photovoltaic generation, solar thermal power generation, biomass power generation, underground heat and power generation with marine energy etc.
At present, just like a raging fire the carrying out of China's intelligent grid construction, distributed power source is also widely applied in electric system as the important component part of intelligent grid.The operation that distributed power source is incorporated into the power networks to power distribution network can bring tremendous influence, mainly comprises the following aspects:
A) impact that voltage is distributed;
B) on the impact of the quality of power supply;
C) on the impact of system protection;
D) on the impact of system reliability;
E) impact that distribution network failure is recovered;
In view of being incorporated into the power networks of distributed power source has so large impact to operation of power networks, therefore be incorporated into the power networks pick-up unit and method of good distributed power grid is most important.Before distributed power source is incorporated into the power networks, must detect item by item according to testing requirement the operating index of distributed power source, and the actual requirement of testing result and block supply net is compared, make the judgement of finally whether loading and being incorporated into the power networks and requiring.Only have through the detection of being incorporated into the power networks, could when distributed power source is incorporated into the power networks, guarantee security, stability and the economy of electrical network.
In recent years, the research of both at home and abroad distributed power grid being incorporated into the power networks is numerous, but the correlative study achievement is mainly reflected in the distributed power source monitoring field of being incorporated into the power networks, device by special use carries out Real-Time Monitoring to the distributed power source in being incorporated into the power networks, monitoring project is mainly quality of power supply aspect, when and the quality of power supply of site produce and report to the police when undesirable than great fluctuation process or cut off distributed power source.Its particular content can be referring to Chinese patent CN200910109925.9 " method of monitoring distributed power supply in distribution network terminal " and CN200910239646.4 " distributed power source be incorporated into the power networks pick-up unit and method ".
Although it is monitoring and the quality of power supply of site that said method can be used for being incorporated into the power networks at distributed power grid, can not satisfies distributed power grid and be incorporated into the power networks and detect requirement about " power control and voltage-regulation detection, electric current and voltage and frequency response characteristic detection, Power Quality Detection, distributed power source start and stop detect electric network influencing " and the described manual detection project of preamble.
Summary of the invention
The purpose of this utility model provides a kind of distributed power source be incorporated into the power networks detection system and detection method.
For realizing that the detection system that above-mentioned utility model purpose adopts comprises Master Control Unit, operation simulation communication unit, electrical energy power quality disturbance unit, electric parameter signal gathering unit and detects analytic unit;
Described Master Control Unit control is incorporated into the power networks to detect and is carried out successively and record according to technical routine;
Dispatch command and distributed power source that described operation simulation communication unit receives Master Control Unit instruction simulation main supply electrical network communicate in order to detect;
The disturbance of described electrical energy power quality disturbance unit reception Master Control Unit instruction generation voltage/frequency/electric current etc.;
The electric parameter data of the collection of described electric parameter signal gathering unit and site; Described detection analytic system provides testing result and examining report to the comparison that analyses item by item of testing result data, and can implement management to test item and parameter.
For realizing that the detection method that above-mentioned utility model purpose adopts is that the test item that is incorporated into the power networks is divided into automatic test item and manual detection project, automatically test item detects by pick-up unit, the manual detection project may further comprise the steps by detecting people's rear typing detection system of obtaining a result:
A. detect the manual detection project that distributed power source is incorporated into the power networks;
B. carry out the detection of automatic test item by special detection device in distributed power source and site, collect distributed power source operation characteristic data, preserve into the specialized property file;
C. the detection system analysis of the result of manual detection project and characteristic file input being incorporated into the power networks draws each item rating and testing result;
D. the detection system that is incorporated into the power networks generates examining report according to testing result and examining report template file, provides the suggestion conclusion of detection.
The utility model is divided into automatic test item and manual detection project by the test item that will be incorporated into the power networks, automatically test item detects by pick-up unit, detect distributed power source in conjunction with the result of manual detection project again and whether meet the code requirement that accesses regional power supply network, and the examining report of standard format is provided and detects the suggestion conclusion for the detection managerial personnel reference of being incorporated into the power networks, greatly increase work efficiency.
Description of drawings
Fig. 1 is the be incorporated into the power networks theory diagram of detection system of distributed power source;
Fig. 2 is the theory diagram of distributed power source and network detecting method;
Fig. 3 is Master Control Unit internal module figure;
Fig. 4 is operation simulation communication unit, electrical energy power quality disturbance unit, electric parameter signal gathering unit internal module figure;
Fig. 5 detects analytic system internal module figure;
Fig. 6 is the be incorporated into the power networks overhaul flow chart of detection system of distributed power source.
Embodiment
Embodiment 1
In conjunction with Fig. 1, the distributed power source detection system that is incorporated into the power networks comprises Master Control Unit 10, operation simulation communication unit 20, electrical energy power quality disturbance unit 30, electric parameter signal gathering unit 40 and detects analytic unit 50;
Described Master Control Unit 10 controls detect to be carried out and record successively according to technical routine, generates the characteristic file of inclusion test progress and testing result;
Dispatch command and distributed power source that described operation simulation communication unit 20 receives Master Control Unit 10 instruction simulation main supply electrical networks communicate in order to detect;
The disturbance of described electrical energy power quality disturbance unit 30 reception Master Control Units, 10 instructions generation voltage/frequency/electric current etc.;
Described electric parameter signal gathering unit 40 receives the electric parameter data of Master Control Unit 10 instruction acquisitions and site;
The comparison that analyses item by item of 50 pairs of testing result data of described detection analytic unit provides testing result and examining report, and test item and parameter are implemented management.
As shown in Figure 3, described Master Control Unit 10 comprises detection control module 11, test item administration module 12, sampling processing control module 13, detects data memory module 14, ethernet interface module 15, usb interface module 16, button module 17, human-computer interface module 18;
Described detection control module 11 is obtained test item and is sent instruction according to test item to other modules from test item administration module 12 as the nerve center of detection system, finishes one by one each test item;
Described test item administration module 12, administrative institute remains test item and test item, provides next project to be detected to detecting control module 11;
Described sampling processing control module 13 gathers the simulating signals such as electric current, power supply, frequency and carries out analytical calculation according to the requirement of test item from electric parameter signal gathering unit 40, draw the data such as power, power factor, harmonic wave, DC component;
Described detection data memory module 14 is saved in the result of sampling processing control module 13 in the storer with the form of specified characteristic file;
The Ethernet interface of described ethernet interface module 15 management pick-up units, the management that can receiving portion be deployed in the detection analytic unit 50 on the host computer arranges order, after detecting beginning in real time to host computer feedback detection progress and testing result.
The USB interface of described usb interface module 16 management pick-up units accepts to use the detection analytic unit 50 from master system in the USB device to obtain the test item configuration information, also the characteristic file of testing result can be write in the USB device.
Described button module 17 comprises up and down four direction key, "enter" key", Cancel key, Menu key, start key, stop key at least;
Described human-computer interface module 18 shows detection progress and detected state, and reflection detects the response interface of 11 pairs of buttons of control module.
As shown in Figure 3, described operation simulation communication unit 20 comprises communication module 23, frame group code module 21, frame decoding module 22;
Described communication module 23 is responsible for detection system and the direct information communication of distributed power source;
Described frame group code module 21 is responsible for the traffic order group code is become the order data frame of appointment;
Described frame decoding module 22 is responsible for the feedback result Data Analysis of distributed power source out.
Described electric energy instruction disturbance unit 30 comprises voltage disturbance device 31, current disturbing device 33, frequency disturbance device 32 and disturbance power supply 34;
Described voltage disturbance device 31 produces the voltage disturbance of appointment according to detecting control module 11 orders;
Described current disturbing device 33 produces the current disturbing of appointment according to detecting control module 11 orders;
Described frequency disturbance device 32 produces the frequency disturbance of appointment according to detecting the control module order;
Described disturbance power supply 34 to and the site improve voltage or increase electric current, its rated power is determined according to the rated power of distributed power source to be detected.
Described electric parameter signal gathering unit 40 comprises voltage transformer (VT) 41 summation current transformers 42;
The described voltage transformer (VT) 41 also high voltage of site is converted to the low-voltage of being convenient to measure and provides digitized voltage data;
Described current transformer 42 will and the large current conversion of site for ease of the little electric current measured and provide digitized current data.
As shown in Figure 5, described detection analytic unit 50 comprises test item administration module 51, canonical parameter administration module 52, pick-up unit interactive module 53, characteristic file analysis module 54, manual detection typing module 55, testing result grading module 56, examining report generation module 57;
Described test item administration module 51 is managed all for the test item of distributed power source, comprises automatic test item and manual detection project, can increase newly to revise the deletion test item, and can select for the distributed power source of formulating the combination of test item;
The standard-required of described canonical parameter administration module 52 each test item of management;
Described pick-up unit interactive module 53 is communicated by letter with the pick-up unit hardware system, sets test item, obtains the characteristic file of automatic test item;
Described characteristic file analysis module 54 analysis and detection devices detect the distributed power source operation characteristic file that obtains automatically, draw detection progress and the testing result of automatic test item;
The testing result of described manual detection typing module 55 typing manual detection projects;
Described testing result grading module 56 is set the score value of each test item, according to result's scoring and the calculating total points of test item;
Described examining report generation module 57 is set the examining report templates, and generates examining report according to the result of automatic test item and manual detection project according to the form of examining report template.
Embodiment 2
In conjunction with Fig. 2, the described detection method test item that will be incorporated into the power networks is divided into automatic test item and manual detection project, and test item detects by pick-up unit automatically, and the manual detection project may further comprise the steps by detecting people's rear typing detection system of obtaining a result:
A. detect the manual detection project that distributed power source is incorporated into the power networks;
B. carry out the detection of automatic test item by special detection device in distributed power source and site, collect distributed power source operation characteristic data, preserve into the specialized property file;
C. the detection system analysis of the result of manual detection project and characteristic file input being incorporated into the power networks draws each item rating and testing result;
D. the detection system that is incorporated into the power networks generates examining report according to testing result and examining report template file, provides the suggestion conclusion of detection.
The control of described power detects, and its method is, dispatch command comprises at least into the active power with distributed power source output and is controlled to be 25%, 50%, 75% and 100% of rated power.Described voltage-regulation is controlled detection, and its method is the dispatch command that sends the specified power factor to distributed power source, then sends the electric parameter situation of change of rear and site by the instruction of electric parameter signal gathering unit collection scheduling and transfers to Master Control Unit processing preservation.
The variable quantity, rate of change and the duration that comprise current/voltage/frequency disturbance in the electrical energy power quality disturbance order, and can carry out thus the low voltage ride-through capability detection of distributed power source.
Described voltage disturbance device be by regulating the series connection divider resistance and reduce and the voltage of site, improve and during the voltage of site by disturbance power supply and shunt resistance synchronous effect in parallel, improve and the voltage of site, the assurance electric current can not change;
Described current disturbing device reduces the also electric current of site by adjustable shunt resistance in parallel, increases the also electric current of site by the disturbance power supply;
Described frequency disturbance device increases or reduces the also change in voltage frequency of site by frequency converter.The present invention is divided into automatic test item and manual detection project by the test item that will be incorporated into the power networks, automatically test item detects by pick-up unit, detect distributed power source in conjunction with the result of manual detection project again and whether meet the code requirement that accesses regional power supply network, and the examining report of standard format is provided and detects the suggestion conclusion for the detection managerial personnel reference of being incorporated into the power networks, greatly increase work efficiency.
Below in conjunction with accompanying drawing System Working Principle and flow process are briefly described:
At first, by the distributed power source test item that testing staff's Analysis deterrmination need to carry out that is incorporated into the power networks, and the test item input detected analytic unit 50, set detected parameters and standard-required.By test item administration module 51 all test items of management, by detected parameters module 52 is set every detected parameters is set.
If the manual detection project, then by the result of the every detection of artificial judgment; If automatic test item detects the detection configuration file that analytic unit 50 generates specific formats, the usb interface module 16 by pick-up unit interactive module 53 and detection system will detect configuration file importing detection system.
After the button module 17 of testing staff by pick-up unit starts detection system, detect control module 11 and from test item administration module 12, obtain next automatically test item.If all finish then enter the ending flow process.If uncompleted test item is then judged the type of test item.
If power control or start and stop detect, detect control module 11 and send the traffic order request that generates to operation simulation communication unit 20.Specific instructions is judged in dispatching communication unit 20, generate concrete dispatch command or the dispatch command that sets in advance directly is provided by the dispatch interface of frame group code module 21 according to distributed power supply system to be detected, communication module 23 sends to distributed power source with dispatch command, and notice detects control module 11 after the distributed power source feedback.Detect control module 11 control electric parameter signal gathering unit 40, by voltage transformer (VT) 41 summation current transformers 42, gather the also real-time voltage current digital signal at place, site, process the primary voltage current data by sampling processing control module 13 according to sample frequency and generate the electric parameter data, then these electric parameter data are delivered to and detected data memory module 14, be stored in the characteristic file.The electric parameter data comprise harmonic current components, voltage deviation, magnitude of a voltage fluctuation and flicker frequency, Voltage unbalance degree, the DC component ratio of distributed power source at least.
Ethernet interface module 15 will detect in real time progress and state is sent to human-computer interface module 18 and detects analytic unit 50.
If the electric current and voltage frequency response characteristic detects, then by detecting control module 11, by the electrical energy power quality disturbance unit and the site produce specific disturbance, process by detecting same testing result treatment scheme with power control or start and stop again.
For voltage disturbance, then undertaken by voltage disturbance device 31, if the step-down disturbance then reduces the point voltage that is incorporated into the power networks by self-adjustable series connection divider resistance, if the supercharging disturbance then raises the point voltage that is incorporated into the power networks by disturbance power supply 34 and shunt resistance in parallel, electric current can remain unchanged.
For frequency disturbance, then produce frequency disturbance by frequency disturbance device 32, mainly increase or reduce the also frequency of site by frequency converter.
For current disturbing, undertaken by current disturbing device 33, the disturbance of electric current then reduces by self-adjustable shunt resistance in parallel and the electric current of site if reduce, the disturbance of electric current then increases by disturbance power supply 34 and the electric current of site if increase.
If Power Quality Detection is then directly undertaken by detecting identical result treatment mode with the control of front power.
After a detection is finished, detect control module 11 review button modules 17 and whether required to interrupt detecting, then enter in this way the ending flow process, as otherwise next test item of cycle detection.
Below described for the ending flow process.In the manual detection project with after test item is all finished automatically, the result of characteristic file and manual detection project is inputted detection analytic unit 50, by the data of the characteristic file analysis module 54 analytical characteristics files manual detection result in conjunction with 55 typings of manual detection typing module, the whole test items of analyzing and processing, then be every detection scoring by testing result grading module 56 according to the score value of setting and the contrast of testing requirement, finally generate examining report by examining report generation module 57 according to the examining report template.
Claims (6)
1. distributed power source detection system that is incorporated into the power networks, it is characterized in that: described detection system comprises Master Control Unit (10), operation simulation communication unit (20), electrical energy power quality disturbance unit (30), electric parameter signal gathering unit (40) and detects analytic unit (50);
Described Master Control Unit (10) control detects to be carried out and record successively according to technical routine, generates the characteristic file of inclusion test progress and testing result;
Dispatch command and distributed power source that described operation simulation communication unit (20) receives Master Control Unit (10) instruction simulation main supply electrical network communicate in order to detect;
The disturbance of described electrical energy power quality disturbance unit (30) reception Master Control Unit (10) instruction generation voltage/frequency/electric current etc.;
Described electric parameter signal gathering unit (40) receives the electric parameter data of Master Control Unit (10) instruction acquisition and site;
Described detection analytic unit (50) provides testing result and examining report to the comparison that analyses item by item of testing result data, and test item and parameter are implemented management.
2. the distributed power source according to claim 1 detection system that is incorporated into the power networks is characterized in that: described Master Control Unit (10) comprises and detects control module (11), test item administration module (12), sampling processing control module (13), detects data memory module (14), ethernet interface module (15), usb interface module (16), button module (17), human-computer interface module (18);
Described detection control module (11) is obtained test item and is sent instruction according to test item to other modules from test item administration module (12) as the nerve center of detection system, finishes one by one each test item;
Described test item administration module (12), administrative institute remains test item and test item, provides next project to be detected to detecting control module (11);
Described sampling processing control module (13) gathers the simulating signals such as electric current, power supply, frequency and carries out analytical calculation according to the requirement of test item from electric parameter signal gathering unit (40), draw the data such as power, power factor, harmonic wave, DC component;
Described detection data memory module (14) is saved in the result of sampling processing control module (13) in the storer with the form of specified characteristic file;
The Ethernet interface of described ethernet interface module (15) management pick-up unit, the management that can receiving portion be deployed in the detection analytic unit (50) on the host computer arranges order, after detecting beginning in real time to host computer feedback detection progress and testing result.
The USB interface of described usb interface module (16) management pick-up unit accepts to use the detection analytic unit (50) from master system in the USB device to obtain the test item configuration information, also the characteristic file of testing result can be write in the USB device.
Described button module (17) comprises up and down four direction key, "enter" key", Cancel key, Menu key, start key, stop key at least;
Described human-computer interface module (18) shows detection progress and detected state, and reflection detects control module (11) to the response interface of button.
3. the distributed power source according to claim 1 detection system that is incorporated into the power networks, it is characterized in that: described operation simulation communication unit (20) comprises communication module (23), frame group code module (21), frame decoding module (22);
Described communication module (23) is responsible for detection system and the direct information communication of distributed power source;
Described frame group code module (21) is responsible for the traffic order group code is become the order data frame of appointment;
Described frame decoding module (22) is responsible for the feedback result Data Analysis of distributed power source out.
4. the distributed power source according to claim 1 pick-up unit that is incorporated into the power networks, it is characterized in that: described electric energy instruction disturbance unit (30) comprises voltage disturbance device (31), current disturbing device (33), frequency disturbance device (32) and disturbance power supply (34);
Described voltage disturbance device (31) produces the voltage disturbance of appointment according to detecting control module (11) order;
Described current disturbing device (33) produces the current disturbing of appointment according to detecting control module (11) order;
Described frequency disturbance device (32) produces the frequency disturbance of appointment according to detecting the control module order;
Described disturbance power supply (34) to and the site improve voltage or increase electric current, its rated power is determined according to the rated power of distributed power source to be detected.
5. the distributed power source according to claim 1 detection system that is incorporated into the power networks, it is characterized in that: described electric parameter signal gathering unit (40) comprises voltage transformer (VT) (41) summation current transformer (42);
Described voltage transformer (VT) (41) the also high voltage of site is converted to the low-voltage of being convenient to measure and provides digitized voltage data;
Described current transformer (42) will and the large current conversion of site for ease of the little electric current measured and provide digitized current data.
6. the distributed power source according to claim 1 detection system that is incorporated into the power networks, it is characterized in that: described detection analytic unit (50) comprises test item administration module (51), canonical parameter administration module (52), pick-up unit interactive module (53), characteristic file analysis module (54), manual detection typing module (55), testing result grading module (56), examining report generation module (57);
Described test item administration module (51), manage all for the test item of distributed power source, comprise automatic test item and manual detection project, can increase newly and revise the deletion test item, and can select for the distributed power source of formulating the combination of test item;
Described canonical parameter administration module (52) is managed the standard-required of each test item;
Described pick-up unit interactive module (53) is communicated by letter with the pick-up unit hardware system, sets test item, obtains the characteristic file of automatic test item;
Described characteristic file analysis module (54) analysis and detection device detects the distributed power source operation characteristic file that obtains automatically, draws detection progress and the testing result of automatic test item;
The testing result of described manual detection typing module (55) typing manual detection project;
Described testing result grading module (56) is set the score value of each test item, according to result's scoring and the calculating total points of test item;
Described examining report generation module (57) is set the examining report template, and generates examining report according to the result of automatic test item and manual detection project according to the form of examining report template.
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| CN 201220321653 CN202720323U (en) | 2012-07-05 | 2012-07-05 | Distributive power supply synchronization detection system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749593A (en) * | 2012-07-05 | 2012-10-24 | 安徽中兴继远信息技术股份有限公司 | Distributive power supply synchronization detection system and method |
| CN103675519A (en) * | 2013-10-23 | 2014-03-26 | 国家电网公司 | Online monitoring device and system for electric energy quality |
| CN106787095A (en) * | 2016-12-06 | 2017-05-31 | 柳州铁道职业技术学院 | A kind of many gear solar charger circuits of family expenses |
-
2012
- 2012-07-05 CN CN 201220321653 patent/CN202720323U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749593A (en) * | 2012-07-05 | 2012-10-24 | 安徽中兴继远信息技术股份有限公司 | Distributive power supply synchronization detection system and method |
| CN102749593B (en) * | 2012-07-05 | 2014-10-15 | 安徽中兴继远信息技术股份有限公司 | Distributive power supply synchronization detection system and method |
| CN103675519A (en) * | 2013-10-23 | 2014-03-26 | 国家电网公司 | Online monitoring device and system for electric energy quality |
| CN106787095A (en) * | 2016-12-06 | 2017-05-31 | 柳州铁道职业技术学院 | A kind of many gear solar charger circuits of family expenses |
| CN106787095B (en) * | 2016-12-06 | 2023-06-13 | 柳州铁道职业技术学院 | Household multi-gear solar charger circuit |
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