CN207096276U - A kind of control recorder based on voltage ride-through test - Google Patents
A kind of control recorder based on voltage ride-through test Download PDFInfo
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- CN207096276U CN207096276U CN201720942810.8U CN201720942810U CN207096276U CN 207096276 U CN207096276 U CN 207096276U CN 201720942810 U CN201720942810 U CN 201720942810U CN 207096276 U CN207096276 U CN 207096276U
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Abstract
A kind of control recorder based on voltage ride-through test, the voltage x current value for exporting and gathering adjustable transformer and transformer load in real time of adjustable transformer is controlled, comprising：Central controller, connected with adjustable transformer and load, control the output voltage size of adjustable transformer and hold time, assess the voltage ride through ability of frequency converter；Signal sampling and processing module, input are connected respectively with central controller and adjustable transformer；Waveform analysis module, input are connected respectively with central controller and Signal sampling and processing module；Image display module, input are connected respectively with central controller and signal acquisition and waveform analysis module；Memory module is compressed, input is connected respectively with central controller and Signal sampling and processing module.The utility model has the advantages that automatic test, saves human cost.
Description
Technical field
It the utility model is related to grid generation technical field, and in particular to a kind of control record based on voltage ride-through test
Instrument.
Background technology
With vigorously implementing for national energy-saving policy, power station auxiliary system carries out a large amount of frequency converter transformations, to reduce machine
Group station service.But the subsidiary engine frequency converter voltage ride-through capability of most of fired power generating units does not wait until to verify at present, some is not even
Possess voltage ride through ability, power network occur and the problem of instantaneous voltage fluctuation causes generating set chaser occurs；Due to frequency converter
Without voltage ride-through functional test, once there is Voltage Drop or too high, frequency converter can trigger the protection such as low-voltage and excessively stream,
Frequency converter locking is caused to export, for high voltage converter, supply is all Important Auxiliary equipment, once frequency converter locking, Important Auxiliary equipment
Stoppage in transit can ultimately result in the generation of unit tripping accident.
Tested to detect frequency converter voltage ride-through capability, it is necessary to carry out high-low voltage ride-through capability to frequency converter,
But lack corresponding high voltage converter detection device at present.Voltage ride through ability test is carried out to high voltage converter, it is necessary to grind
A set of voltage dip device is made, to verify frequency converter ride-through capability in Voltage Drop.
Frequency converter voltage passes through experimental rig and is made up of testing transformer, fast incision pass, tunable load, control recorder.
Pass through experiment to output voltage height, the voltage switching time be distinctly claimed, the parameters such as voltage, electric current, power are also needed into
Row monitoring in real time, it is therefore desirable to design an instrumentation implementation process control and acquisition parameter function.
Utility model content
The purpose of this utility model is to provide a kind of control recorder based on voltage ride-through test, applied to frequency converter
In voltage ride-through experiment, Control experiment whole process.
A kind of control recorder based on voltage ride-through test, control the output of adjustable transformer and collection can modulation in real time
The voltage x current value of depressor and transformer load, comprising：
Central controller, it is connected with adjustable transformer and transformer load, controls the output voltage size and dimension of transformer
Hold the time；
Signal sampling and processing module, input are connected, controlled by center respectively with central controller and adjustable transformer
Device controls and gathers the concrete numerical value of the output voltage of adjustable transformer, electric current and frequency；
Waveform analysis module, input are connected respectively with central controller and Signal sampling and processing module；
Image display module, input are connected respectively with central controller and signal acquisition and waveform analysis module；
Memory module is compressed, input is connected respectively with central controller and Signal sampling and processing module；
Voltage, electric current, frequency and the waveform that the central controller gathers according to the Signal sampling and processing module
Power, power factor, rotating speed, switching time information obtained from analysis module calculates, assess the voltage ride through ability of frequency converter.
A kind of above-mentioned control recorder based on voltage ride-through test, wherein, in the Signal sampling and processing module
From 8 channel isolations, 16 high-speed a/d converter collection voltages of synchronized sampling and current signal.
A kind of above-mentioned control recorder based on voltage ride-through test, wherein, the voltage signal acquisition error<
0.2V, the current signal Acquisition Error<0.02mA, frequency calculate measurement error<0.01Hz.
A kind of above-mentioned control recorder based on voltage ride-through test, wherein, the compression memory module supports movement
Storage device.
A kind of above-mentioned control recorder based on voltage ride-through test, wherein, in the Signal sampling and processing module
Sampling channel it is mutually isolated.
A kind of above-mentioned control recorder based on voltage ride-through test, wherein, the image display module selects figure
Touch-screen.
A kind of above-mentioned control recorder based on voltage ride-through test, wherein, the control recorder connects point respectively
Connect switch and frequency converter, an adjustable transformer are sequentially connected with the shunting switch and frequency converter, 8 inputs of shunting switch
Connect with multiple voltage, it is related that magnitude of voltage to frequency converter voltage passes through voltage U；Recorder is controlled to control the shunting switch successively
Switch different voltages, and record data simultaneously, step are as follows：
S1, the shunting switch output end are arranged at the 8th input, and output voltage 100%U, wherein U represent frequency conversion
The rated voltage of device；
S2, the shunting switch output end switch to the 1st input, output voltage 130%U, 0.5 second retention time；
S3, the shunting switch output end switch to the 2nd input, output voltage 100%U, treat frequency converter run to
It is stable, read frequency converter working condition；
S4, the shunting switch output end switch to the 3rd input, output voltage 90%U, and the retention time is more than 5
Second, treat that frequency converter is run to stable, reading frequency converter working condition；
S5, the shunting switch output end switch to the 4th input, output voltage 100%U, treat frequency converter run to
It is stable, read frequency converter working condition；
S6, the shunting switch output end switch to the 5th input, output voltage 60%U, and the retention time is 5 seconds；
S7, the shunting switch output end switch to the 6th input, output voltage 100%U, treat frequency converter run to
It is stable, read frequency converter working condition；
S8, the shunting switch output end switch to the 7th input, output voltage 20%U, are kept for 0.5 second；
S9, the shunting switch output end switch to the 8th input, output voltage 100%U, treat frequency converter run to
It is stable, read frequency converter working condition；
S10, the control recorder judge whether frequency converter normal operation and records all test parameters and waveform, experiment
During such as a certain project test failure, then be directly entered next pilot project；
S11, the control recorder assess the voltage ride through ability of system under test (SUT), generate analysis report.
The advantages of the utility model and beneficial effect are to introduce automatic test, save human cost.
Brief description of the drawings
Fig. 1 is module map of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferable specific embodiment in detail, the utility model is done and further explained
State.
Special control recorder as shown in Figure 1, real-time display and the voltage electricity for recording transformer output and load end
Signal is flowed, realizes the comprehensive monitoring to parameters such as associated voltage, electric current, frequency, power and power factors.
A kind of control recorder based on voltage ride-through test, control the output of adjustable transformer and collection can modulation in real time
The voltage current waveform of depressor and transformer load, include central controller 1, Signal sampling and processing module 2, waveform analysis mould
Block 3, image display module 4 and compression memory module 5.
Central controller 1, is connected with adjustable transformer and transformer load, controls the output voltage size and dimension of transformer
Hold the time.
Signal sampling and processing module 2, input are connected, controlled by center respectively with central controller 1 and adjustable transformer
Device 1 processed controls and gathers the concrete numerical value of the output voltage of adjustable transformer, electric current and frequency.
Waveform analysis module 3, input are connected respectively with central controller 1 and Signal sampling and processing module 2.
Image display module 4, input are connected respectively with central controller 1 and signal acquisition and waveform analysis module 3.
Memory module 5 is compressed, input is connected respectively with central controller 1 and Signal sampling and processing module 2.
Voltage, electric current, frequency and the ripple that the central controller 1 gathers according to the Signal sampling and processing module 2
Power, power factor, rotating speed, switching time information obtained from conformal analysis module 3 calculates, the voltage for assessing the frequency converter are worn
More ability.
Further, from 8 channel isolations, 16 high speeds of synchronized sampling in the Signal sampling and processing module 2
A/D converter collection voltages and current signal.
Further, the voltage signal acquisition error<0.2V, the current signal Acquisition Error<0.02mA, frequency meter
Calculate measurement error<0.01Hz.
Further, the compression memory module 5 supports movable storage device.
Further, the sampling channel in the Signal sampling and processing module 2 is mutually isolated.
Further, the image display module 4 selects pattern touch screen.
When carrying out testing experiment, the control recorder control transformer switching output electricity based on voltage ride-through test
Pressure, and keep each output voltage to maintain certain time, control recorder judges to become according to the voltage x current information collected
After the operation of frequency device reaches stable state, then control transformer to be switched to next output voltage, repeat next circulation.If
Frequency converter operation can't reach stable state after the time limit, then after controlling recorder record miss data, under continuing
One step is tested, until pilot project is fully completed.
After off-test, control recorder records and calculates mains side and the voltage of load-side, electric current, frequency during experiment
Situations such as rate, power, power factor, switching time and protection signal, and transient signal is recorded, food preservation test mistake
Voltage waveform in journey, is analyzed waveform, the voltage ride through ability of the frequency converter of evaluation test process, generation analysis report
Accuse.
Control recorder connects shunting switch and frequency converter, an adjustable transformer and the shunting switch and frequency converter respectively
It is sequentially connected, 8 inputs of shunting switch connect with multiple voltage, and it is related that magnitude of voltage to frequency converter voltage passes through voltage；Control
Recorder processed controls the shunting switch to switch different voltages successively, and record data simultaneously, step are as follows：
S1, the shunting switch output end are arranged at the 8th input, and output voltage 100%U, wherein U represent frequency conversion
The rated voltage of device；
S2, the shunting switch output end switch to the 1st input, output voltage 130%U, 0.5 second retention time；
S3, the shunting switch output end switch to the 2nd input, output voltage 100%U, treat frequency converter run to
It is stable, read frequency converter working condition；
S4, the shunting switch output end switch to the 3rd input, output voltage 90%U, and the retention time is more than 5
Second, treat that frequency converter is run to stable, reading frequency converter working condition；
S5, the shunting switch output end switch to the 4th input, output voltage 100%U, treat frequency converter run to
It is stable, read frequency converter working condition；
S6, the shunting switch output end switch to the 5th input, output voltage 60%U, and the retention time is 5 seconds；
S7, the shunting switch output end switch to the 6th input, output voltage 100%U, treat frequency converter run to
It is stable, read frequency converter working condition；
S8, the shunting switch output end switch to the 7th input, output voltage 20%U, are kept for 0.5 second；
S9, the shunting switch output end switch to the 8th input, output voltage 100%U, treat frequency converter run to
It is stable, read frequency converter working condition；
S10, the control recorder judge whether frequency converter normal operation and records all test parameters and waveform, experiment
During such as a certain project test failure, then be directly entered next pilot project；
S11, the control recorder assess the voltage ride through ability of tested frequency convertor system, generate analysis report.
Although content of the present utility model is discussed in detail by above preferred embodiment, but it should be appreciated that on
The description stated is not considered as to limitation of the present utility model.After those skilled in the art have read the above, for
A variety of modifications and substitutions of the present utility model all will be apparent.Therefore, the scope of protection of the utility model should be by appended
Claim limit.
Claims (6)
1. a kind of control recorder based on voltage ride-through test, controls the output of adjustable transformer and gathers adjustable transformation in real time
The voltage x current value of device and transformer load, it is characterised in that include：
Central controller（1）, be connected with adjustable transformer and transformer load, control adjustable transformer output voltage size and
Hold time；
Signal sampling and processing module（2）, input and central controller（1）Connect with adjustable transformer, controlled by center respectively
Device processed（1）Control and gather the concrete numerical value of the output voltage of adjustable transformer, electric current and frequency；
Waveform analysis module（3）, input and central controller（1）With Signal sampling and processing module（2）Connect respectively；
Image display module（4）, input and central controller（1）With signal acquisition and waveform analysis module（3）Connect respectively；
Compress memory module（5）, input and central controller（1）With Signal sampling and processing module（2）Connect respectively；
The central controller（1）According to the Signal sampling and processing module（2）Voltage, electric current, frequency and the ripple of collection
Conformal analysis module（3）The information such as the power, rotating speed, power factor, switching time and the protection signal that calculate, described in assessment
The voltage ride through ability of adjustable transformer.
2. a kind of control recorder based on voltage ride-through test as claimed in claim 1, it is characterised in that the signal is adopted
Collection and processing module（2）It is middle to be believed from 8 channel isolations, 16 high-speed a/d converter collection voltages of synchronized sampling and electric current
Number.
3. a kind of control recorder based on voltage ride-through test as claimed in claim 2, it is characterised in that voltage signal is adopted
Collect error<0.2V, current signal Acquisition Error<0.02mA, frequency calculate measurement error<0.01Hz.
4. a kind of control recorder based on voltage ride-through test as claimed in claim 1, it is characterised in that the compression is deposited
Store up module（5）Support movable storage device.
5. a kind of control recorder based on voltage ride-through test as claimed in claim 1, it is characterised in that the signal is adopted
Collection and processing module（2）In sampling channel it is mutually isolated.
6. a kind of control recorder based on voltage ride-through test as claimed in claim 1, it is characterised in that the figure shows
Show module（4）From pattern touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720942810.8U CN207096276U (en) | 2017-07-31 | 2017-07-31 | A kind of control recorder based on voltage ride-through test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720942810.8U CN207096276U (en) | 2017-07-31 | 2017-07-31 | A kind of control recorder based on voltage ride-through test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207096276U true CN207096276U (en) | 2018-03-13 |
Family
ID=61543303
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720942810.8U Withdrawn - After Issue CN207096276U (en) | 2017-07-31 | 2017-07-31 | A kind of control recorder based on voltage ride-through test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271727A (en) * | 2017-07-31 | 2017-10-20 | 国网上海市电力公司 | A kind of control recorder tested based on voltage ride-through |
-
2017
- 2017-07-31 CN CN201720942810.8U patent/CN207096276U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271727A (en) * | 2017-07-31 | 2017-10-20 | 国网上海市电力公司 | A kind of control recorder tested based on voltage ride-through |
| CN107271727B (en) * | 2017-07-31 | 2023-08-29 | 国网上海市电力公司 | Control recorder based on voltage ride through test |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Fuxing Inventor after: Du Yang Inventor after: Liu Qi Inventor after: Wei Bengang Inventor after: Li Tengfei Inventor after: Zhu Yanwen Inventor after: Chen Hongtao Inventor after: Li Ju Inventor before: Li Fuxing Inventor before: Du Yang Inventor before: Liu Qi Inventor before: Wei Bengang Inventor before: Li Tengfei Inventor before: Zhu Yanwen Inventor before: Chen Hongtao Inventor before: Li Ju |
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| CB03 | Change of inventor or designer information | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180313 Effective date of abandoning: 20230829 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180313 Effective date of abandoning: 20230829 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |