CN202563028U - Full-load test device of power unit - Google Patents
Full-load test device of power unit Download PDFInfo
- Publication number
- CN202563028U CN202563028U CN2012202244986U CN201220224498U CN202563028U CN 202563028 U CN202563028 U CN 202563028U CN 2012202244986 U CN2012202244986 U CN 2012202244986U CN 201220224498 U CN201220224498 U CN 201220224498U CN 202563028 U CN202563028 U CN 202563028U
- Authority
- CN
- China
- Prior art keywords
- power unit
- power cell
- inverter
- power
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a full-load test device of a power unit and relates to a test device of a power unit. Currently, the front end power supply capacity is required to be high, the energy consumption is required to be high and the occupied area of a power resistor is required to be large by power unit full-load tests. The device comprises a tested power unit, a testing power unit, an inverter, an electric reactor, a first isolation transformer, a second isolation transformer, a voltage regulator and an incoming line switch, wherein a power supply is input to the testing power unit through the incoming line switch, the voltage regulator and the second isolation transformer, a direct current busbar of the testing power unit is connected with the input of the inverter, the three-phase output of the inverter is input to the tested power unit through the first isolation transformer, and the electric reactor is connected between the output of the tested power unit and the output of the testing power unit to serve as a load. By the aid of the technical scheme, full-load output can be achieved, the test accuracy is high, and the output power of the tested power unit is input to the tested power unit again through the testing power unit, the inverter and isolation transformers, so that energy cycle is achieved and the energy consumption is low.
Description
Technical field
The utility model relates to a kind of power cell test unit.
Background technology
Along with the development of Power Electronic Technique, the mesohigh frequency converter has obtained using widely and development, and wherein power unit cascade type mesohigh frequency converter becomes main product both domestic and external in recent years with the advantage of its each side.Power cell is the Power Exchange part, is the core of mesohigh frequency converter, also is that loss mainly produces part.The loss value of different load high or low power unit is different, thereby temperature rise is also different, so the data acquisition of the power cell thermal design of science and checking must be carried out on the fully loaded basis of power cell.The producer's neither one power cell full-load test platform that has, blindly carry out fansink designs, power cell that designs like this or fansink designs are excessive or have overheated problem.What the producer that also has was set up is traditional power cell full-load test mode; Traditional power cell full-load test mode is that power cell output directly connects powerful resistance; Output power consumes by power resistor fully, and it is very big that the drawback of the method is that power resistor takes up an area of, and requires the front end power supply capacity big; And output power consumes in vain, and energy consumption is big.
The utility model content
The technical matters that the utility model will solve and the technical assignment of proposition are that the prior art scheme is improved and improved, and a kind of power cell full-load test device is provided, and be high to reach the test accuracy, the purpose that energy consumption is little.For this reason, the utility model is taked following technical scheme.
A kind of power cell full-load test device comprises by test power cell, test with power cell, inverter, reactor, first isolating transformer, second isolating transformer, pressure regulator and service entrance switch; Power supply is input to test through service entrance switch, pressure regulator, second isolating transformer and uses power cell; Test links to each other with the inverter input with the DC master row of power cell; The output of the three-phase of inverter is input to the measured power unit through first isolating transformer, is connected reactor as load between measured power unit and the output of testing with power cell.
As the further of technique scheme improved and replenish, the utility model also comprises following additional technical feature.
Described inverter is a three-phase H bridge inverter structure.Or described inverter is DC/AC commutation inversion structure, and its dc bus links to each other with power cell with test, and three-phase is exported and linked to each other with isolating transformer.
Second isolating transformer is the isolation boosting transformer.
Beneficial effect: the present technique scheme is through output voltage and the phase angle of adjustment test with power cell; Thereby the size and the direction vector of control measured power unit output voltage and electric current; Make by the power factor (PF) of test power cell output power and approach 1; Can realize fully loaded output, the test accuracy is high.Re-entered by the test power cell with power cell, inverter and isolating transformer through test by the output power of test power cell, realize energy circulation, system only need provide a spot of loss, and energy consumption is low.
Description of drawings
Fig. 1 is the utility model electrical structure schematic diagram.
The Q1-service entrance switch, the T3-pressure regulator, T1-first isolating transformer, T2-second isolating transformer, U1-measured power unit, the U2-test is used power cell, U3-inverter, L1-reactor.
Embodiment
Below in conjunction with Figure of description the technical scheme of the utility model is done further detailed description.
As shown in Figure 1; The utility model comprises by test power cell U1, test with power cell U2, inverter U3, reactor L1, the first isolating transformer T1, the second isolating transformer T2, pressure regulator T3 and service entrance switch Q1; Power supply is input to test through service entrance switch Q1, pressure regulator T3, the second isolating transformer T2 and uses power cell U2; Test links to each other with inverter U3 input with the DC master row of power cell U2; The output of the three-phase of inverter U3 is input to measured power unit U1 through the first isolating transformer T1, is connected reactor L1 as load between measured power unit U1 and the output of testing with power cell U2.Wherein inverter U3 is a three-phase H bridge inverter structure; Inverter U3 also can be DC/AC commutation inversion structure, and its dc bus links to each other with power cell U2 with test, and three-phase output links to each other with isolating transformer.The second isolating transformer T2 is the isolation boosting transformer.
At the trial; Closed service entrance switch Q1, through output voltage and the phase angle of control test with power cell U2, thus the size and the direction vector of control measured power unit U1 output voltage and electric current; Make by the power factor (PF) of test power cell output power and approach 1, realize fully loaded output.Re-entered by the test power cell with power cell U2, inverter U3 and isolating transformer through test by the output power of test power cell, realize energy circulation.
More than a kind of power cell full-load test device shown in Figure 1 be the specific embodiment of the utility model; The utility model substantive distinguishing features and progress have been embodied; Can be according to the use needs of reality; Under the enlightenment of the utility model, it is carried out the equivalent modifications of aspects such as shape, structure, all at the row of the protection domain of this programme.
Claims (4)
1. power cell full-load test device; It is characterized in that: it comprises by test power cell (U1), test with power cell (U2), inverter (U3), reactor (L1), first isolating transformer (T1), second isolating transformer (T2), pressure regulator (T3) and service entrance switch (Q1); Power supply is input to test with power cell (U2) through service entrance switch (Q1), pressure regulator (T3), second isolating transformer (T2); Test links to each other with inverter (U3) input with the DC master row of power cell (U2); The output of the three-phase of inverter (U3) is input to measured power unit (U1) through first isolating transformer (T1), is connected reactor (L1) as load between measured power unit (U1) and the output of testing with power cell (U2).
2. a kind of power cell full-load test device according to claim 1 is characterized in that: described inverter (U3) is a three-phase H bridge inverter structure.
3. a kind of power cell full-load test device according to claim 1 is characterized in that: described inverter (U3) is a DC/AC commutation inversion structure, and its dc bus links to each other with power cell (U2) with test, and three-phase output links to each other with isolating transformer.
4. a kind of power cell full-load test device according to claim 1 is characterized in that: second isolating transformer (T2) is the isolation boosting transformer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2012202244986U CN202563028U (en) | 2012-05-18 | 2012-05-18 | Full-load test device of power unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2012202244986U CN202563028U (en) | 2012-05-18 | 2012-05-18 | Full-load test device of power unit |
Publications (1)
Publication Number | Publication Date |
---|---|
CN202563028U true CN202563028U (en) | 2012-11-28 |
Family
ID=47212673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2012202244986U Expired - Fee Related CN202563028U (en) | 2012-05-18 | 2012-05-18 | Full-load test device of power unit |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN202563028U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104730387A (en) * | 2015-03-25 | 2015-06-24 | 深圳市禾望电气股份有限公司 | Aging device and method for frequency conversion power units |
CN105116256A (en) * | 2015-08-27 | 2015-12-02 | 北京利德华福电气技术有限公司 | Novel high voltage frequency converter self-circulation test system and debugging method |
CN110018387A (en) * | 2018-01-09 | 2019-07-16 | 江苏南瑞泰事达电气有限公司 | It is a kind of to carry experimental rig and test method entirely |
-
2012
- 2012-05-18 CN CN2012202244986U patent/CN202563028U/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104730387A (en) * | 2015-03-25 | 2015-06-24 | 深圳市禾望电气股份有限公司 | Aging device and method for frequency conversion power units |
CN104730387B (en) * | 2015-03-25 | 2018-01-30 | 深圳市禾望电气股份有限公司 | The aging equipment and method of frequency conversion power unit |
CN105116256A (en) * | 2015-08-27 | 2015-12-02 | 北京利德华福电气技术有限公司 | Novel high voltage frequency converter self-circulation test system and debugging method |
CN105116256B (en) * | 2015-08-27 | 2017-10-20 | 北京利德华福电气技术有限公司 | A kind of new high voltage converter self-loopa test system and its adjustment method |
CN110018387A (en) * | 2018-01-09 | 2019-07-16 | 江苏南瑞泰事达电气有限公司 | It is a kind of to carry experimental rig and test method entirely |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106451556B (en) | Method and device for determining capability of power distribution network feeder line for accepting distributed power supply | |
Wu et al. | A dual-buck–boost AC/DC converter for DC nanogrid with three terminal outputs | |
CN202975289U (en) | Photovoltaic grid connected inverter automatic testing platform | |
CN103091587B (en) | Energy-saving inverter test circuit and control method | |
CN202563028U (en) | Full-load test device of power unit | |
CN203025270U (en) | Full-power test device for high-voltage frequency converter | |
CN106291207B (en) | A kind of chain type SVG module test macro, platform and method | |
Wong et al. | Parallel power electronics filters in three-phase four-wire systems | |
CN105305421A (en) | Experiment system and method for unified electric energy quality controller | |
CN208835764U (en) | Power supply system | |
CN204374950U (en) | A kind of hybrid simulation test interface of energy-storage units PCS control panel | |
CN204858910U (en) | Generator stator drying system based on exciting arrangement constant voltage mode | |
CN202837418U (en) | Grid-connected inverter test equipment and inverter energy recharge simulation grid test system | |
CN101290335B (en) | Direct-current input power supplying converter energy-saving aging device | |
CN207010251U (en) | A kind of new double-bus electrokinetic cell forming and capacity dividing energy saving system | |
CN102830299B (en) | Grid-connected inverter test device and inverter energy recharging simulated power grid test system | |
CN203204097U (en) | Inverter test platform based on photovoltaic array IV simulator | |
CN103683959A (en) | Power unit burn-in method for high-voltage frequency converter | |
CN203673043U (en) | Testing device for cell with large-power full-range voltage output | |
CN202837435U (en) | Energy-saving power assessment test device for high-power inverter | |
CN203261244U (en) | High-frequency switching power supply module | |
CN204613384U (en) | A kind of proving installation stopping the event of powering on for power information acquisition terminal | |
CN201204457Y (en) | Power distribution system with thrice wave-stopping device | |
Kumar et al. | Power quality assessment of electric vehicles on the distribution networks | |
CN203951195U (en) | A kind of three brachium pontis collocation structures of and asymmetry compensation idle for electric railway |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20180518 |