CN203191524U - Low-voltage ride-through test equipment of wind generating set - Google Patents
Low-voltage ride-through test equipment of wind generating set Download PDFInfo
- Publication number
- CN203191524U CN203191524U CN 201320188386 CN201320188386U CN203191524U CN 203191524 U CN203191524 U CN 203191524U CN 201320188386 CN201320188386 CN 201320188386 CN 201320188386 U CN201320188386 U CN 201320188386U CN 203191524 U CN203191524 U CN 203191524U
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- isolating switch
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- generating set
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Abstract
The utility model provides a low-voltage ride-through test equipment of a wind generating set. The equipment comprises low voltage analog device, a low voltage analog control system, a remote control system of the wind generating set and a data analysis system. The equipment is characterized in that the data analysis system collects a tower-top accelerated speed a, a wind wheel torque M1, a wind speed Vw and a wind wheel rotating speed n1 of the detected set and calculates an impulse load of the detected set during a test process. The test equipment can test impact influence of a low voltage process to a power grid and also can test and calculate the impulse load to the set during a low-voltage ride-through process. The structure is simple and cost is low, which is conducive to a wide range of promotion.
Description
Technical field
The utility model relates to wind power generation field, is specially a kind of wind power generating set low-voltage and passes through testing apparatus.
Background technology
Along with wind-power electricity generation proportion in electric power energy is increasing, wind generator system can not be ignored the influence of electrical network.Voltage falls and can bring a series of transient state processes to wind power generating set; as superpotential, excess current, the increase of rotating speed rising instantaneous torque etc. appear; the safe operation of serious harm blower fan itself and control system thereof; so; the just upright off-grid of blower fan enters the stoppage protection pattern when breaking down as if electrical network generally speaking.
The low-voltage that the electrical network guide rule requires is passed through LVRT, refers to be incorporated into the power networks when point voltage falls at blower fan, and blower fan can keep being incorporated into the power networks, even provide certain reactive power to electrical network, support power system restoration, normal up to power system restoration, thus " passing through " this low-voltage time zone.It is more dark that electrical network falls amplitude, requires more short in the net time.
Pass through LVTR in order to make wind power generating set possess low-voltage, often unit manufacturer exports active CROWBAR in parallel to guarantee the normal operation of unit at current transformer.Yet in the electrical network falling process, be very important access opportunity of active C ROWBAR, and access is accurate inadequately opportunity, can produce very high shock load, influences the serviceable life of equipment such as generator and gear case.Traditional low voltage test equipment is mainly tested in the low-voltage process influence to electrical network, and has ignored the shock load to unit itself.
The utility model content
Utility model purpose: provide a kind of wind power generating set low-voltage to pass through testing apparatus, to solve the problems of the technologies described above.
Technical scheme: the utility model is achieved through the following technical solutions:
A kind of wind power generating set low-voltage is passed through testing apparatus, comprise low-voltage analogue means, low-voltage analog control system, wind generating set remote control system and data analysis system, it is characterized in that: in test process, described data analysis system is gathered cat head acceleration a, wind wheel moment of torsion M1, wind speed Vw and the wind speed round n1 of tested unit, and is calculated the shock load of tested unit in the test process by data analysis system.
Described low-voltage analogue means is made up of net side isolating switch CB1, reactance isolating switch CB2, short-circuit current device isolating switch CB3, blower fan side isolating switch CB4, current-limiting resistance R1 and short circuit variable resistor R2, before the test beginning, reactance isolating switch CB2 closure, short-circuit current device isolating switch CB3 disconnects, tested set steady operation; During the test beginning, reactance isolating switch CB2 disconnects, short-circuit current device isolating switch CB3 closure, and the simulation electrical network falls.
The sample frequency that described data analysis system is gathered cat head acceleration a, wind wheel moment of torsion M1, wind speed Vw and the wind speed round n1 of tested unit is not less than 50KHz.
Beneficial effect
Adopt the beneficial effect of technique scheme to be:
1. this testing apparatus not only can be tested the low-voltage process to the shock effect of electrical network, can also test, calculate in the low-voltage crossing process shock load to unit;
2. this testing apparatus adopts the modular combination mode, be easy to transportation, install, and test period is shorter;
3. this testing apparatus adopts and is made up of conventional components and parts, and cost is lower, is easy to promote.
Description of drawings
Fig. 1 is schematic diagram of the present utility model;
Embodiment
Below in conjunction with accompanying drawing the utility model is described further;
As shown in Figure 1, the utility model provides a kind of wind power generating set low-voltage to pass through testing apparatus, comprise low-voltage analogue means, low-voltage analog control system, wind generating set remote control system and data analysis system, it is characterized in that: described low-voltage analogue means is made up of net side isolating switch CB1, reactance isolating switch CB2, short-circuit current device isolating switch CB3, blower fan side isolating switch CB4, current-limiting resistance R1 and short circuit variable resistor R2, before the test beginning, reactance isolating switch CB2 closure, short-circuit current device isolating switch CB3 disconnects, tested set steady operation; During the test beginning, reactance isolating switch CB2 disconnects, short-circuit current device isolating switch CB3 closure, the simulation electrical network falls, at this moment meanwhile, data analysis system is gathered cat head acceleration a, wind wheel moment of torsion M1, wind speed Vw and the wind speed round n1 of tested unit, and calculates the shock load of tested unit in the test process by data analysis system, and the sample frequency of data analysis system is not less than 50kHz.
Claims (3)
1. a wind power generating set low-voltage is passed through testing apparatus, comprise low-voltage analogue means, low-voltage analog control system, wind generating set remote control system and data analysis system, it is characterized in that: in test process, described data analysis system is gathered cat head acceleration a, wind wheel moment of torsion M1, wind speed Vw and the wind speed round n1 of tested unit, and is calculated the shock load of tested unit in the test process by data analysis system.
2. a kind of wind power generating set low-voltage as claimed in claim 1 is passed through testing apparatus, it is characterized in that:
Described low-voltage analogue means is made up of net side isolating switch CB1, reactance isolating switch CB2, short-circuit current device isolating switch CB3, blower fan side isolating switch CB4, current-limiting resistance R1 and short circuit variable resistor R2, before the test beginning, reactance isolating switch CB2 closure, short-circuit current device isolating switch CB3 disconnects, tested set steady operation; During the test beginning, reactance isolating switch CB2 disconnects, short-circuit current device isolating switch CB3 closure, and the simulation electrical network falls.
3. a kind of wind power generating set low-voltage as claimed in claim 1 is passed through testing apparatus, it is characterized in that:
The sample frequency that described data analysis system is gathered cat head acceleration a, wind wheel moment of torsion M1, wind speed Vw and the wind speed round n1 of tested unit is not less than 50KHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320188386 CN203191524U (en) | 2013-04-16 | 2013-04-16 | Low-voltage ride-through test equipment of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320188386 CN203191524U (en) | 2013-04-16 | 2013-04-16 | Low-voltage ride-through test equipment of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203191524U true CN203191524U (en) | 2013-09-11 |
Family
ID=49108375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320188386 Expired - Fee Related CN203191524U (en) | 2013-04-16 | 2013-04-16 | Low-voltage ride-through test equipment of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203191524U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717379A (en) * | 2014-12-04 | 2016-06-29 | 国家电网公司 | Method for testing fault ride-through of high-low voltage continuous process |
| CN107561437A (en) * | 2016-06-30 | 2018-01-09 | 中国电力科学研究院 | A kind of Wind turbines primary frequency modulation method of testing |
-
2013
- 2013-04-16 CN CN 201320188386 patent/CN203191524U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717379A (en) * | 2014-12-04 | 2016-06-29 | 国家电网公司 | Method for testing fault ride-through of high-low voltage continuous process |
| CN105717379B (en) * | 2014-12-04 | 2018-11-09 | 国家电网公司 | A kind of high-low voltage continuous process fault traversing test method |
| CN107561437A (en) * | 2016-06-30 | 2018-01-09 | 中国电力科学研究院 | A kind of Wind turbines primary frequency modulation method of testing |
| CN107561437B (en) * | 2016-06-30 | 2021-09-03 | 中国电力科学研究院有限公司 | Primary frequency modulation testing method for wind turbine generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Inner Mongol Harpower Energy Technology Co., Ltd. Assignor: Sharpower Technology Co., Ltd. Contract record no.: 2014990000204 Denomination of utility model: Low-voltage ride-through test equipment of wind generating set Granted publication date: 20130911 License type: Exclusive License Record date: 20140414 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| 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: 20130911 Termination date: 20200416 |