CN107271727A - A kind of control recorder tested based on voltage ride-through - Google Patents
A kind of control recorder tested based on voltage ride-through Download PDFInfo
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- CN107271727A CN107271727A CN201710640707.2A CN201710640707A CN107271727A CN 107271727 A CN107271727 A CN 107271727A CN 201710640707 A CN201710640707 A CN 201710640707A CN 107271727 A CN107271727 A CN 107271727A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- 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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Abstract
A kind of control recorder tested based on voltage ride-through, the voltage x current value for exporting and gathering adjustable transformer and transformer load in real time of control adjustable transformer, comprising：Central controller, is connected with adjustable transformer and load, controls the output voltage size of adjustable transformer and holds time, assesses the voltage ride through ability of frequency converter；Signal sampling and processing module, input is connected respectively with central controller and adjustable transformer；Waveform analysis module, input is connected respectively with central controller and Signal sampling and processing module；Image display module, input is 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.It is an advantage of the invention that automatic test, saves human cost.
Description
Technical field
The present invention relates to grid generation technical field, and in particular to a kind of control recorder tested based on voltage ride-through.
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 current most of fired power generating units does not wait until checking, has not even
Possess voltage ride through ability, occur in that the problem of instantaneous voltage fluctuation causes generating set chaser occurs for power network；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.
The content of the invention
It is an object of the invention to provide a kind of control recorder tested based on voltage ride-through, applied to frequency converter voltage
Pass through in experiment, Control experiment whole process.
A kind of control recorder tested based on voltage ride-through, is controlled 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, is connected with adjustable transformer and transformer load, when controlling the output voltage size of transformer and maintaining
Between；
Signal sampling and processing module, input is connected respectively with central controller and adjustable transformer, by central controller control
Make and gather the concrete numerical value of the output voltage, electric current and frequency of adjustable transformer；
Waveform analysis module, input is connected respectively with central controller and Signal sampling and processing module；
Image display module, input is 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 waveform analysis that the central controller is gathered according to the Signal sampling and processing module
Power, power factor, rotating speed, switching time information obtained from module is calculated, assess the voltage ride through ability of frequency converter.
A kind of above-mentioned control recorder tested based on voltage ride-through, 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 tested based on voltage ride-through, wherein, the voltage signal acquisition error<
0.2V, the current signal Acquisition Error<0.02mA, frequency calculates measurement error<0.01Hz.
A kind of above-mentioned control recorder tested based on voltage ride-through, wherein, the compression memory module supports movement
Storage device.
A kind of above-mentioned control recorder tested based on voltage ride-through, wherein, in the Signal sampling and processing module
Sampling channel it is mutually isolated.
A kind of above-mentioned control recorder tested based on voltage ride-through, wherein, the image display module selects figure
Touch-screen.
A kind of above-mentioned control recorder tested based on voltage ride-through, wherein, the control recorder is connected point respectively
Switch and frequency converter are connect, an adjustable transformer is 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 passes through voltage U to frequency converter voltage；Recorder is controlled to control the shunting switch successively
Switch different voltages, and record data simultaneously, step is as follows：
S1, the shunting switch output end are arranged at the 8th input, and output voltage is 100%U, and wherein U represents frequency converter
Rated voltage；
S2, the shunting switch output end switch to the 1st input, and output voltage is 130%U, 0.5 second retention time；
S3, the shunting switch output end switch to the 2nd input, and output voltage is 100%U, treat that frequency converter is run to steady
It is fixed, read frequency converter working condition；
S4, the shunting switch output end switch to the 3rd input, and output voltage is 90%U, and the retention time is more than 5 seconds, treated
Frequency converter is run to stable, reads frequency converter working condition；
S5, the shunting switch output end switch to the 4th input, and output voltage is 100%U, treat that frequency converter is run to steady
It is fixed, read frequency converter working condition；
S6, the shunting switch output end switch to the 5th input, and output voltage is 60%U, and the retention time is 5 seconds；
S7, the shunting switch output end switch to the 6th input, and output voltage is 100%U, treat that frequency converter is run to steady
It is fixed, read frequency converter working condition；
S8, the shunting switch output end switch to the 7th input, and output voltage is 20%U, are kept for 0.5 second；
S9, the shunting switch output end switch to the 8th input, and output voltage is 100%U, treat that frequency converter is run to steady
It is fixed, read frequency converter working condition；
S10, the control recorder judge whether frequency converter normal operation and records all test parameters and waveform, process of the test
In 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 present invention are to introduce automatic test, save human cost.
Brief description of the drawings
Fig. 1 is the module map of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
Special control recorder as shown in Figure 1, shows and records transformer output and the voltage electricity of load end in real time
Signal is flowed, the comprehensive monitoring to parameters such as associated voltage, electric current, frequency, power and power factors is realized.
A kind of control recorder tested based on voltage ride-through, is controlled the output of adjustable transformer and collection can modulation in real time
The voltage current waveform of depressor and transformer load, includes 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 is connected respectively with central controller 1 and adjustable transformer, is controlled by center
The concrete numerical value of output voltage, electric current and frequency that device 1 processed controls and gathers adjustable transformer.
Waveform analysis module 3, input is connected respectively with central controller 1 and Signal sampling and processing module 2.
Image display module 4, input is 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 ripple that the central controller 1 is gathered according to the Signal sampling and processing module 2
Power, power factor, rotating speed, switching time information obtained from conformal analysis module 3 is calculated, 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 tested based on voltage ride-through
Pressure, and keep each output voltage to maintain certain time, control recorder judges to become according to the voltage x current information collected
The operation of frequency device is reached after stable state, then controls transformer to be switched to next output voltage, repeats next circulation.If
Frequency converter operation can't reach stable state after the time limit, then control after recorder record miss data, under proceeding
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 in process of the test
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 passes through voltage to frequency converter voltage；Control
Recorder processed controls the shunting switch to switch different voltages, and record data simultaneously successively, and step is as follows：
S1, the shunting switch output end are arranged at the 8th input, and output voltage is 100%U, and wherein U represents frequency converter
Rated voltage；
S2, the shunting switch output end switch to the 1st input, and output voltage is 130%U, 0.5 second retention time；
S3, the shunting switch output end switch to the 2nd input, and output voltage is 100%U, treat that frequency converter is run to steady
It is fixed, read frequency converter working condition；
S4, the shunting switch output end switch to the 3rd input, and output voltage is 90%U, and the retention time is more than 5 seconds, treated
Frequency converter is run to stable, reads frequency converter working condition；
S5, the shunting switch output end switch to the 4th input, and output voltage is 100%U, treat that frequency converter is run to steady
It is fixed, read frequency converter working condition；
S6, the shunting switch output end switch to the 5th input, and output voltage is 60%U, and the retention time is 5 seconds；
S7, the shunting switch output end switch to the 6th input, and output voltage is 100%U, treat that frequency converter is run to steady
It is fixed, read frequency converter working condition；
S8, the shunting switch output end switch to the 7th input, and output voltage is 20%U, are kept for 0.5 second；
S9, the shunting switch output end switch to the 8th input, and output voltage is 100%U, treat that frequency converter is run to steady
It is fixed, read frequency converter working condition；
S10, the control recorder judge whether frequency converter normal operation and records all test parameters and waveform, process of the test
In 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 present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (7)
1. a kind of control recorder tested based on voltage ride-through, is controlled 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, controlled by center respectively with adjustable transformer
Device processed（1）Control and gather the concrete numerical value of the output voltage, electric current and frequency of adjustable transformer；
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, assess described
The voltage ride through ability of adjustable transformer.
2. a kind of control recorder tested based on voltage ride-through 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 tested based on voltage ride-through as claimed in claim 2, it is characterised in that the voltage letter
Number Acquisition Error<0.2V, the current signal Acquisition Error<0.02mA, frequency calculates measurement error<0.01Hz.
4. a kind of control recorder tested based on voltage ride-through 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 tested based on voltage ride-through 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 tested based on voltage ride-through as claimed in claim 1, it is characterised in that the figure shows
Show module（4）From pattern touch screen.
7. a kind of control recorder tested based on voltage ride-through as claimed in claim 1, it is characterised in that the control note
Record instrument connects shunting switch and frequency converter respectively, and an adjustable transformer is sequentially connected with the shunting switch and frequency converter, tap
8 inputs of switch connect with multiple voltage, and it is related that magnitude of voltage passes through voltage U to frequency converter voltage；Control recorder control
The shunting switch switches different voltages, and record data simultaneously successively, and step is as follows：
S1, the shunting switch output end are arranged at the 8th input, and output voltage is 100%U, and wherein U represents frequency converter
Rated voltage；
S2, the shunting switch output end switch to the 1st input, and output voltage is 130%U, 0.5 second retention time；
S3, the shunting switch output end switch to the 2nd input, and output voltage is 100%U, treat that frequency converter is run to steady
It is fixed, read frequency converter working condition；
S4, the shunting switch output end switch to the 3rd input, and output voltage is 90%U, and the retention time is more than 5 seconds, treated
Frequency converter is run to stable, reads frequency converter working condition；
S5, the shunting switch output end switch to the 4th input, and output voltage is 100%U, treat that frequency converter is run to steady
It is fixed, read frequency converter working condition；
S6, the shunting switch output end switch to the 5th input, and output voltage is 60%U, and the retention time is 5 seconds；
S7, the shunting switch output end switch to the 6th input, and output voltage is 100%U, treat that frequency converter is run to steady
It is fixed, read frequency converter working condition；
S8, the shunting switch output end switch to the 7th input, and output voltage is 20%U, are kept for 0.5 second；
S9, the shunting switch output end switch to the 8th input, and output voltage is 100%U, treat that frequency converter is run to steady
It is fixed, read frequency converter working condition；
S10, the control recorder judge whether frequency converter normal operation and records all test parameters and waveform, process of the test
In 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640707.2A CN107271727B (en) | 2017-07-31 | 2017-07-31 | Control recorder based on voltage ride through test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640707.2A CN107271727B (en) | 2017-07-31 | 2017-07-31 | Control recorder based on voltage ride through test |
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| Publication Number | Publication Date |
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| CN107271727A true CN107271727A (en) | 2017-10-20 |
| CN107271727B CN107271727B (en) | 2023-08-29 |
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| CN201710640707.2A Active CN107271727B (en) | 2017-07-31 | 2017-07-31 | Control recorder based on voltage ride through test |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110276189A1 (en) * | 2009-12-23 | 2011-11-10 | China Electric Power Research Institute | Control and Protection System of Converter Valve Operation Test Equipment |
| CN102565717A (en) * | 2012-01-18 | 2012-07-11 | 哈尔滨建成集团有限公司 | Thermal battery test system |
| CN205507033U (en) * | 2016-02-02 | 2016-08-24 | 保定华创电气有限公司 | Transformer on -load tap -changer alternating current -direct current parameter testing appearance |
| CN106597181A (en) * | 2017-02-13 | 2017-04-26 | 云南电网有限责任公司电力科学研究院 | Operation monitoring system and method of high-voltage power transformer |
| CN207096276U (en) * | 2017-07-31 | 2018-03-13 | 国网上海市电力公司 | A kind of control recorder based on voltage ride-through test |
-
2017
- 2017-07-31 CN CN201710640707.2A patent/CN107271727B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110276189A1 (en) * | 2009-12-23 | 2011-11-10 | China Electric Power Research Institute | Control and Protection System of Converter Valve Operation Test Equipment |
| CN102565717A (en) * | 2012-01-18 | 2012-07-11 | 哈尔滨建成集团有限公司 | Thermal battery test system |
| CN205507033U (en) * | 2016-02-02 | 2016-08-24 | 保定华创电气有限公司 | Transformer on -load tap -changer alternating current -direct current parameter testing appearance |
| CN106597181A (en) * | 2017-02-13 | 2017-04-26 | 云南电网有限责任公司电力科学研究院 | Operation monitoring system and method of high-voltage power transformer |
| CN207096276U (en) * | 2017-07-31 | 2018-03-13 | 国网上海市电力公司 | A kind of control recorder based on voltage ride-through test |
Non-Patent Citations (1)
| Title |
|---|
| 吴跨宇;蔡慧;卢岑岑;阎晗;: "变频器测试用模拟电子负载设计研究及仿真验证" * |
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| CN107271727B (en) | 2023-08-29 |
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| 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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