CN105915028B - A kind of power unit cascade type high voltage frequency changer on-the-spot test method - Google Patents
A kind of power unit cascade type high voltage frequency changer on-the-spot test method Download PDFInfo
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- CN105915028B CN105915028B CN201610315752.6A CN201610315752A CN105915028B CN 105915028 B CN105915028 B CN 105915028B CN 201610315752 A CN201610315752 A CN 201610315752A CN 105915028 B CN105915028 B CN 105915028B
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- power
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- cascade type
- voltage frequency
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- 238000010998 test method Methods 0.000 title claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000012360 testing method Methods 0.000 claims abstract description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Tests Of Electronic Circuits (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention relates to Electronic Testing fields, and in particular to a kind of power unit cascade type high voltage frequency changer on-the-spot test method, it uses following protocol step：1）Independent current source power supply interface is set on the control circuit board of power cell, which is isolated with its in-line power interface；2）Normal operation/Site Detection change-over switch is set in power unit cascade type high voltage frequency changer system, and the normal operation/Site Detection change-over switch is mounted in the power supply output of power unit cascade type high voltage frequency changer system；3）Power cabinet is set in power unit cascade type high voltage frequency changer system, which is equipped with the ground power-supply system with each power cell power supply in step 1；Using installation independent current source power supply interface, normal operation/Site Detection change-over switch and power cabinet, it has simple in structure, easy for installation, the advantages that work efficiency is high for it.
Description
【Technical field】
The present invention relates to Electronic Testing Technology fields, and in particular to a kind of power unit cascade type high voltage frequency changer scene survey
Method for testing.
【Background technology】
Power unit cascade high-voltage frequency converter input voltage is typically all 3kv or more, when frequency converter goes wrong at the scene
When, it needs to check unit and complete machine control system before high tension transmission after investigation or investigation, it is not good at present
Method.
【Invention content】
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of simple in structure, reasonable design makes
With a kind of convenient power unit cascade type high voltage frequency changer on-the-spot test method.
A kind of power unit cascade type high voltage frequency changer on-the-spot test method of the present invention, it uses following scheme
Step：
1）On the control circuit board of power cell be arranged independent current source power supply interface, the independent current source power supply interface and its
In-line power interface is isolated；
2）Normal operation/Site Detection change-over switch is set in power unit cascade type high voltage frequency changer system, this is just
Normal operation/Site Detection change-over switch is mounted in the power supply output of power unit cascade type high voltage frequency changer system；
3）Power cabinet is set in power unit cascade type high voltage frequency changer system, the power cabinet be equipped with in step 1
The ground power-supply system of each power cell power supply；
4）First frequency converter is needed to tow out with motor before test, then turns normal operation/Site Detection in step 2
Switch opening is changed to be converted；Allow AC380V alternating currents on phase-shifting transformer leading portion；And system automatic shield input voltage is examined
The failures such as survey；
5）Power cabinet in starting step three makes it power to each power cell, makes each power cell normal operation；
6）Then it after connecing 380V electricity in power unit cascade type high voltage frequency changer system, runs and detects defeated comprising unit
Go out waveform and whether master control system is normal.
With the above structure, the present invention has the beneficial effect that：A kind of power unit cascade type high voltage of the present invention becomes
Frequency device on-the-spot test method, it is using installation independent current source power supply interface, normal operation/Site Detection change-over switch and power
Cabinet, it has simple in structure, easy for installation, the advantages that work efficiency is high.
【Specific implementation mode】
Below and specific embodiment come the present invention will be described in detail, illustrative examples therein and explanation only be used for explain
The present invention, but it is not as a limitation of the invention.
A kind of power unit cascade type high voltage frequency changer on-the-spot test method described in present embodiment, it is using such as
Under protocol step：
1）On the control circuit board of power cell be arranged independent current source power supply interface, the independent current source power supply interface and its
In-line power interface is isolated；
2）Normal operation/Site Detection change-over switch is set in power unit cascade type high voltage frequency changer system, this is just
Normal operation/Site Detection change-over switch is mounted in the power supply output of power unit cascade type high voltage frequency changer system；
3）Power cabinet is set in power unit cascade type high voltage frequency changer system, the power cabinet be equipped with in step 1
The ground power-supply system of each power cell power supply；
4）First frequency converter is needed to tow out with motor before test, then turns normal operation/Site Detection in step 2
Switch opening is changed to be converted；Allow AC380V alternating currents on phase-shifting transformer leading portion；And system automatic shield input voltage is examined
The failures such as survey；
5）Power cabinet in starting step three makes it power to each power cell, makes each power cell normal operation；
6）Then it after connecing 380V electricity in power unit cascade type high voltage frequency changer system, runs and detects defeated comprising unit
Go out waveform and whether master control system is normal.
In the present invention, there are independent current source power supply interfaces for each unit, and are isolated with in-line power interface；
In the present invention, complete machine control system contains normal operation/Site Detection change-over switch；
In the present invention, complete machine control system contains to the ground power-supply system of all unit power supplies of power cabinet；When system is in
When Site Detection state, power supply system can power to all units of power cabinet so that unit control panel normal operation；
In the present invention, when system is in detecting state, allow AC380V alternating currents on phase-shifting transformer leading portion；And it is
The failures such as system automatic shield input voltage measurement；
In the present invention, when system is in detecting state, frequency converter needs are towed out with motor；
In the present invention, in system after 380V electricity, can run and detect comprising unit output waveform and master control system whether
Normally.
A kind of power unit cascade type high voltage frequency changer on-the-spot test method of the present invention, it is using installation independent electrical
Source power supply interface, normal operation/Site Detection change-over switch and power cabinet, it has simple in structure, easy for installation, working efficiency
The advantages that high.
The above is only the better embodiment of the present invention, therefore all constructions according to described in present patent application range,
The equivalent change or modification that feature and principle are done, is included within the scope of present patent application.
Claims (1)
1. a kind of power unit cascade type high voltage frequency changer on-the-spot test method, it is characterised in that：It is walked using following scheme
Suddenly：
1）On the control circuit board of power cell be arranged independent current source power supply interface, the independent current source power supply interface with its inside
Power supply interface is isolated；
2）Normal operation/Site Detection change-over switch, the normal fortune are set in power unit cascade type high voltage frequency changer system
Row/Site Detection change-over switch is mounted in the power supply output of power unit cascade type high voltage frequency changer system；
3）Power cabinet is set in power unit cascade type high voltage frequency changer system, which is equipped with and each work(in step 1
The ground power-supply system of rate unit power supply；
4）First frequency converter is needed to tow out with motor before test, then opens the normal operation in step 2/Site Detection conversion
It closes to open and be converted；Allow AC380V alternating currents on phase-shifting transformer leading portion；And system automatic shield input voltage measurement event
Barrier；
5）Power cabinet in starting step three makes it power to each power cell, makes each power cell normal operation；
6）Then it after connecing 380V electricity in power unit cascade type high voltage frequency changer system, runs and detects comprising unit output wave
Whether shape and master control system are normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315752.6A CN105915028B (en) | 2016-05-12 | 2016-05-12 | A kind of power unit cascade type high voltage frequency changer on-the-spot test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315752.6A CN105915028B (en) | 2016-05-12 | 2016-05-12 | A kind of power unit cascade type high voltage frequency changer on-the-spot test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105915028A CN105915028A (en) | 2016-08-31 |
| CN105915028B true CN105915028B (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610315752.6A Active CN105915028B (en) | 2016-05-12 | 2016-05-12 | A kind of power unit cascade type high voltage frequency changer on-the-spot test method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598756A (en) * | 2009-05-22 | 2009-12-09 | 上海新时达电气股份有限公司 | Test system of high voltage frequency converter |
| CN202404169U (en) * | 2011-12-19 | 2012-08-29 | 哈尔滨九洲电气股份有限公司 | Low voltage testing device of serial voltage-superimposed high voltage converter |
| CN103884941A (en) * | 2014-03-28 | 2014-06-25 | 深圳市英威腾电气股份有限公司 | High-voltage inverter, power unit and method and system for testing power unit |
-
2016
- 2016-05-12 CN CN201610315752.6A patent/CN105915028B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598756A (en) * | 2009-05-22 | 2009-12-09 | 上海新时达电气股份有限公司 | Test system of high voltage frequency converter |
| CN202404169U (en) * | 2011-12-19 | 2012-08-29 | 哈尔滨九洲电气股份有限公司 | Low voltage testing device of serial voltage-superimposed high voltage converter |
| CN103884941A (en) * | 2014-03-28 | 2014-06-25 | 深圳市英威腾电气股份有限公司 | High-voltage inverter, power unit and method and system for testing power unit |
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| Publication number | Publication date |
|---|---|
| CN105915028A (en) | 2016-08-31 |
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