CN203881906U - Smart alternating current load testing device - Google Patents
Smart alternating current load testing device Download PDFInfo
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- CN203881906U CN203881906U CN201320890558.2U CN201320890558U CN203881906U CN 203881906 U CN203881906 U CN 203881906U CN 201320890558 U CN201320890558 U CN 201320890558U CN 203881906 U CN203881906 U CN 203881906U
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Abstract
The utility model discloses a smart alternating current load testing device and relates to the technical field of testing devices. A to-be-tested generating set outputs power for a testing host through a three-phase alternating current access unit. The output end of the three-phase alternating current access unit is connected with a power bus. A host computer testing system is connected with the testing host through a communication unit. A smart host unit, the communication unit, a testing unit, a driving unit and a smart load module are connected through a data bus. The smart load module is also connected with the power bus. The smart alternating current load testing device is adjustable in power factor, can simulate sensitive loads, resistive loads and capacitive loads, and achieves a test of simulating actual generating set load characteristics; the load modularization simplifies load heat radiation, control precision is improved, system cost is reduced, and system stability is enabled to be reliable; and the smart alternating current load testing device can provide trend prediction of each key parameter and the decision basis for generating set maintenance by recording the identity identification number of a generating set, storing all testing data in a database and analyzing change in historical data.
Description
Technical field:
The utility model relates to a kind of Intelligent alternating-current load proving installation, belongs to proving installation technical field.
Background technology:
At present, known diesel generator set proving installation is by load cabinet, regulation device, and measurement mechanism, cooling device and simple upper computer software form.During detection, according to generator 's parameter, manually set AC load power, setting measurement pattern, measures and to finish according to survey record data, manually to work out test report afterwards.Need tester in advance genset testing scheme to be customized, test process needs more manual intervention, has affected test speed, has improved testing cost.Test result does not have historical data accumulation at present simultaneously, just provides merely measurement result data, cannot analyze the historical degradation trend of specific generator group load performance, can not provide decision support to unit follow-up maintenance.Test load is integrated simultaneously, by electronic switch, combining realization access load capacity adjusts, conventionally by gear, combine realization, when load variations, easily cause each gear load blocks work inhomogeneous, simultaneously to high-power gear load blocks because power consumption is higher, cause this gear load overheated.And load type can not flexible configuration, resistive load, inductive load, the access of capacitive load needs manual intervention and configuration.
Utility model content:
For the problems referred to above, the technical problems to be solved in the utility model is to provide a kind of Intelligent alternating-current load proving installation.
A kind of Intelligent alternating-current load proving installation of the present utility model, it comprises host computer test macro, smart host unit, three-phase alternating current access unit, communication unit, detecting unit, driver element, intelligent load module, data bus, power bus, described smart host unit, three-phase alternating current access unit, communication unit, detecting unit, driver element, intelligent load module, data bus, power bus has formed Test Host, testing generator group out-put supply is by three-phase alternating current access unit access Test Host, the output terminal access power bus of three-phase alternating current access unit, host computer test macro is connected with Test Host by communication unit, smart host unit, communication unit, detecting unit, driver element, intelligent load module connects by data bus, intelligent load module connects power bus simultaneously.
As preferably, described Test Host adopts the motherboard centered by the MSP430 series microprocessor of 16 bit, using SD card as storage space, and on built-in WindowsCE embedded OS, operation detects software, and data storage realizes by embedded database SQLite; Realize test intelligent, Test Host, by 485 bus interface and upper machine communication, completes electric current and voltage data acquisition and storage by testing circuit, and according to the dynamic Modulating Power output of testing result, makes system power keep constant.
As preferably, described intelligent load module comprises three-phase PWM rectification module, resistance alloys array, detects control module, microprocessor unit, fan cooling unit, intelligent load module accesses three-phase voltage by power bus the input end of three-phase PWM rectification module, the output terminal access resistance alloys array of PWM rectification module, microprocessor unit, detection control module, fan cooling unit access data bus; Load blocks integrated microprocessor is realized intelligent load module, adopts PWM modulation technique, by load blocks, designs, and realizes load adjustable continuously, simulation capacitive, perception, pure resistive load form; Maximum 20kw0.5kw is adjustable continuously to 20kw power for each load blocks, is equipped with independent radiator fan.
As preferably, described host computer test macro comprises genset quota load module, test pattern generation module, historical data analysis module, generator 's parameter load module, data memory module, test report generation module, communication module, test data display module, printout module.
The beneficial effects of the utility model are: centered by genset is detected, according to the parameters such as input unit rated power, voltage, electric current and genset load feature, generate autosensing mode, comprise steady state test time, bearing power size, dynamically add discharge time, the power-factor of load is equivalent, according to this Pattern completion genset stable state, dynamic test, and record test process data; By upper computer software system, generate the test report that meets national regulation; Load blocks be take 20KW as unit, thinks that processor and PWM technology are core, is designed to bus interface, load blocks is adjustable continuously at 0-20KW, and by PWM technology, realize load characteristic and simulate, according to test, need to assemble, realize load capacity, character flexible configuration; Power factor is adjustable, can simulate perceptual, resistive, capacitive load, realizes the test of simulation generator set actual loading characteristic; Load blocks abbreviation load heat dissipation problem, improved control accuracy and reduced system cost, make system stability reliable.By recording genset identification number, in database, store successive test data, analysis of history data variation, provides unit each key parameter trend prediction, and unit maintenance decision-making foundation is provided.
Accompanying drawing explanation:
For ease of explanation, the utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of intelligent load module in the utility model;
Fig. 3 is the structural representation of host computer test macro in the utility model.
In figure: 1-host computer test macro; 2-smart host unit; 3-three-phase alternating current access unit; 4-communication unit; 5-detecting unit; 6-driver element; 7-intelligent load module; 8-data bus; 9-power bus; 10-three-phase PWM rectification module; 11-resistance alloys array; 12-detects control module; 13-microprocessor unit; 14-fan cooling unit; 20-Test Host; 21-genset quota load module; 22-test pattern generation module; 23-historical data analysis module; 24-generator 's parameter load module; 25-data memory module; 26-test report generation module; 27-communication module; 28-test data display module; 29-printout module.
Embodiment:
For making the purpose of this utility model, technical scheme and advantage more cheer and bright, below by the specific embodiment shown in accompanying drawing, the utility model is described.But should be appreciated that, these descriptions are exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, omitted the description to known configurations and technology, to avoid unnecessarily obscuring concept of the present utility model.
As Figure 1-3, this embodiment by the following technical solutions: it comprises host computer test macro 1, smart host unit 2, three-phase alternating current access unit 3, communication unit 4, detecting unit 5, driver element 6, intelligent load module 7, data bus 8, power bus 9, described smart host unit 2, three-phase alternating current access unit 3, communication unit 4, detecting unit 5, driver element 6, intelligent load module 7, data bus 8, power bus 9 has formed Test Host 20, testing generator group out-put supply is by three-phase alternating current access unit 3 access Test Hosts 20, the output terminal access power bus 9 of three-phase alternating current access unit 3, host computer test macro 1 is connected with Test Host 20 by communication unit 4, smart host unit 2, communication unit 4, detecting unit 5, driver element 6, intelligent load module 7 connects by data bus 8, intelligent load module 7 connects power bus 9 simultaneously.
Further, described host computer test macro 1 is transferred to smart host unit 2 by parameters such as various detecting pattern offered load ratios, offered load times by data communication unit; Smart host unit 2 at local data base, and will generate output steering order to data bus by test pattern and test process Parameter storage, and each intelligent load module receives after instruction phase place and power control load power input in accordance with regulations; Intelligent load module arranges this cell power according to the instruction of Test Host unit and parameter; Smart host unit, after obtaining host computer startup command, sends test starting order to data bus, and each load blocks is moved by setting power; By PWM modulation system, from power bus, draw the electric current of specified power, complete accurate power consumption control; Detecting unit detects the parameters such as electric current and voltage temperature and also sampled data is transferred to data bus, and smart host unit by data receiver and store local test database into, is transferred to current test data host computer test macro by data bus simultaneously; Smart host unit inspection test duration and system test result, if the test of this test pattern finishes to enter next test pattern; To genset all test patterns after having tested, notify host computer test macro, test process data are uploaded; Host computer test macro output test report.
Further, described Test Host 20 adopts the motherboard centered by the MSP430 series microprocessor of 16 bit, using SD card as storage space, and on built-in WindowsCE embedded OS, operation detects software, and data storage realizes by embedded database SQLite; Realize test intelligent, Test Host, by 485 bus interface and upper machine communication, completes electric current and voltage data acquisition and storage by testing circuit, and according to the dynamic Modulating Power output of testing result, makes system power keep constant.
Further, described intelligent load module 7 comprises three-phase PWM rectification module 10, resistance alloys array 11, detects control module 12, microprocessor unit 13, fan cooling unit 14, intelligent load module 7 accesses three-phase voltage by power bus 9 input end of three-phase PWM rectification module 10, the output terminal access resistance alloys array 11 of PWM rectification module 10, microprocessor unit 13, detection control module 12, fan cooling unit 14 access data buses 8.
Further, the control command control load that described microprocessor unit transmits according to Test Host module is with specified power and phase place operation.Microprocessor unit requires by PWM module Circuit tuning output power according to the power of Test Host, phase place, sequential, and according to voltage, electric current and the phase place of detecting unit detection, constantly adjust PWM module modulation signal dutycycle at any time, realize closed-loop control.Assurance intelligent load module is carried out work by specified power and phase place.
Further, described host computer test macro 1 comprises genset quota load module 21, test pattern generation module 22, historical data analysis module 23, generator 's parameter load module 24, data memory module 25, test report generation module 26, communication module 27, test data display module 28, printout module 29; Detect slip-stick artist by parameters such as genset quota load module and this function input testing generator group quotas of generator 's parameter load module.After input, test pattern generation module is calculated under stable state, transient test pattern the information such as load loading mode, the time of running, and result of calculation is shown; Confirm, after result of calculation, result of calculation to be downloaded to system testing main frame 20 by communication module, start test process; In test run process, constantly by communication module, receiving real-time testing data shows with curve and forms mode by test data display module.After test finishes, upload all test process data, and these data are stored by data memory module; Call test report generation module and generate test report, then by output print module, print; Historical data analysis module can be called test unit successive test data, historical data is analyzed and future trend prediction, and maintenance suggestion is provided.
The testing process of this embodiment is: in master system input genset quota parameter, according to preset model, calculate steady state test time, transient test, load impact anticlimax test duration parameter, load loading procedure is controlled parameter, threshold value is controlled parameter, these parameters, by after confirming at master system, download to Test Host; Test Host completes whole test process according to controlling parameter, and test process data are stored in to mainframe memory.
Host computer, in test overall process and Test Host communication, is realized test data and is monitored in real time, shows test results, and whole test datas are uploaded to host computer stores, printout examining report after having tested.
By host computer generator 's parameter input, record genset identification number, can record this unit successive test data, and according to each nominal parameter degenerated curve of historical data analysis and propose trend prediction.
By PWM three phase rectifier pattern, electronic load device adopts electric current and voltage dicyclo to control, and by the DC bus-bar voltage of real-time sampling and setting value comparison, through pi regulator, processes the instruction of output active current; According to vector controlled thought and space vector of voltage (SVPWM) thought, given active current instruction referenced reactive current, compare with the electric current of real-time sampling, through pi regulator, process, the final rectifier bridge that drives, make the current on line side waveform of its outputting high quality and control DC side busbar voltage and power factor within the specific limits.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. Intelligent alternating-current load proving installation, is characterized in that: it comprises host computer test macro (1), smart host unit (2), three-phase alternating current access unit (3), communication unit (4), detecting unit (5), driver element (6), intelligent load module (7), data bus (8), power bus (9), described smart host unit (2), three-phase alternating current access unit (3), communication unit (4), detecting unit (5), driver element (6), intelligent load module (7), data bus (8), power bus (9) has formed Test Host (20), testing generator group out-put supply is by three-phase alternating current access unit (3) access Test Host (20), the output terminal access power bus (9) of three-phase alternating current access unit (3), host computer test macro (1) is connected with Test Host (20) by communication unit (4), smart host unit (2), communication unit (4), detecting unit (5), driver element (6), intelligent load module (7) connects by data bus (8), intelligent load module (7) connects power bus (9) simultaneously.
2. Intelligent alternating-current load proving installation according to claim 1, it is characterized in that: described intelligent load module (7) comprises three-phase PWM rectification module (10), resistance alloys array (11), detect control module (12), microprocessor unit (13), fan cooling unit (14), intelligent load module (7) accesses three-phase voltage the input end of three-phase PWM rectification module (10) by power bus (9), the output terminal access resistance alloys array (11) of PWM rectification module (10), microprocessor unit (13), detect control module (12), fan cooling unit (14) access data bus (8).
3. Intelligent alternating-current load proving installation according to claim 1, is characterized in that: described Test Host (20) adopts the motherboard centered by the MSP430 series microprocessor of 16 bit, usings SD card as storage space.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320890558.2U CN203881906U (en) | 2013-12-31 | 2013-12-31 | Smart alternating current load testing device |
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| CN201320890558.2U CN203881906U (en) | 2013-12-31 | 2013-12-31 | Smart alternating current load testing device |
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| CN203881906U true CN203881906U (en) | 2014-10-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831453A (en) * | 2017-12-15 | 2018-03-23 | 株洲中车电气科技有限公司 | A kind of electric locomotive DC600V power supplies detection method and system |
| CN112486754A (en) * | 2020-12-01 | 2021-03-12 | 苏州浪潮智能科技有限公司 | Programmable GPU (graphics processing Unit) simulation and test system and method |
| CN113589080A (en) * | 2021-07-29 | 2021-11-02 | 恩施冠易科技有限公司 | Automatic testing system and method for charger |
| CN113702827A (en) * | 2021-08-30 | 2021-11-26 | 中国船舶重工集团公司第七O三研究所无锡分部 | Automatic power pre-adding device for low-pressure water resistor |
| CN114062960A (en) * | 2021-11-16 | 2022-02-18 | 河北凯翔电气科技股份有限公司 | Data center standby power supply testing system and testing method thereof |
-
2013
- 2013-12-31 CN CN201320890558.2U patent/CN203881906U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831453A (en) * | 2017-12-15 | 2018-03-23 | 株洲中车电气科技有限公司 | A kind of electric locomotive DC600V power supplies detection method and system |
| CN112486754A (en) * | 2020-12-01 | 2021-03-12 | 苏州浪潮智能科技有限公司 | Programmable GPU (graphics processing Unit) simulation and test system and method |
| CN113589080A (en) * | 2021-07-29 | 2021-11-02 | 恩施冠易科技有限公司 | Automatic testing system and method for charger |
| CN113702827A (en) * | 2021-08-30 | 2021-11-26 | 中国船舶重工集团公司第七O三研究所无锡分部 | Automatic power pre-adding device for low-pressure water resistor |
| CN113702827B (en) * | 2021-08-30 | 2024-02-09 | 中国船舶重工集团公司第七O三研究所无锡分部 | Automatic power pre-adding device for low-voltage water resistor |
| CN114062960A (en) * | 2021-11-16 | 2022-02-18 | 河北凯翔电气科技股份有限公司 | Data center standby power supply testing system and testing method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20161231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |