CN103698684A - Interface conversion device and conversion method thereof for running test of serial thyristor valve - Google Patents
Interface conversion device and conversion method thereof for running test of serial thyristor valve Download PDFInfo
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- CN103698684A CN103698684A CN201310740956.0A CN201310740956A CN103698684A CN 103698684 A CN103698684 A CN 103698684A CN 201310740956 A CN201310740956 A CN 201310740956A CN 103698684 A CN103698684 A CN 103698684A
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Abstract
The invention provides an interface conversion device and a conversion method thereof for running test of a serial thyristor valve. The device comprises a signal collection and conditioning unit, a signal processing unit, a programmable logic unit, a signal synchronous conversion unit and a communication unit, wherein the signal collection and conditioning unit, the signal processing unit, the programmable logic unit and the signal synchronous conversion unit are sequentially connected, and the signal processing unit is connected with valve base electronic equipment through the communication unit. The interface conversion device for the running test of the serial thyristor valve has the advantages that various types of triggering and detection commands sent by a testing device can be converted into different commands which can be identified and executed by valves, the cooperation of the testing device and the valves is ensured, and various valve tests can be jointly carried out; the flexibility, adaptability, compatibility and reliability of the testing device are improved, and meanwhile the testing efficiency and the utilization rate of equipment are improved.
Description
Technical field
The present invention relates to a kind of conversion equipment, specifically relate to a kind of interface switching device and conversion method thereof of series thyristor valve operating test.
Background technology
High voltage tandem thyristor valve is the large power power electronic appliance that is widely used in Survey of Flexible AC Transmission System (FACTS) and direct current transportation (HVDC) technical field.Normally by a plurality of thyristors and auxiliary circuit thereof, be connected in series and form, can be according to the series connection quantity of different application scenarios and electric pressure selector valve structure and thyristor.The Thyristors in series valve that different manufacturers manufactures and designs has technical characterstic separately, is mainly reflected in the design aspects such as physical dimension, process structure and electric parameter.Different valves has also designed special-purpose triggering and interface circuit, to complete the function such as monitoring, control and protection of valve.Different manufacturers valve and trigger monitoring system and adopted different technical schemes, and normally incompatible design, therefore caused running test on compatible valve, to carry out with it triggering monitoring system.
High-power thyristor is widely used in the power electronic devices of electric system, the withstand voltage 8500V that reached of single tube of current 6 inch thyristors, and electric current surpasses 5000A, is the power device of the contact capacity maximum of current electric system use.The advantage that it is easy to advantage that series connection used and high reliability, lower cost, makes it to become the device for high-power power electronic that widely apply in Survey of Flexible AC Transmission System and HVDC Transmission Technology field.In these application scenarios, conventionally many Thyristors in series are connected, and form high voltage tandem thyristor valve together with auxiliary circuit, become the most basic convertor unit.
The Thyristors in series valve that different manufacturers manufactures and designs has feature and technical advantage separately; be mainly reflected in the design aspects such as physical dimension, process structure and electric parameter; therefore different valves has designed special-purpose trigger circuit, to complete the functions such as measurement, control and protection.
Summary of the invention
In order to realize, the valve of different size, different parameters is carried out to running test examination according to identical standard, the invention provides a kind of interface switching device and conversion method thereof of series thyristor valve operating test, the various triggerings that this device can send test unit and sense command convert the instruction that different valves can be identified and carry out to, guarantee that test unit mates with valve, combine and carry out every valve test.This has not only improved test unit dirigibility, adaptability, compatibility and reliability, has also improved test efficiency and plant factor simultaneously.
In order to realize foregoing invention object, the present invention takes following technical scheme:
The invention provides a kind of interface switching device of series thyristor valve operating test, described device comprises signals collecting and conditioning unit, signal processing unit, programmable logic cells, signal synchronize conversion cell and communication unit; Described signals collecting is connected successively with conditioning unit, signal processing unit, programmable logic cells and signal synchronize conversion cell, and described signal processing unit connects valve base electronic device by communication unit.
Described signals collecting and conditioning unit receive the trigger pip that valve base electronic device sends, and the trigger pip of input is carried out to pre-service obtain conditioned signal, and conditioned signal is sent to signal processing unit; Described signal processing unit reference sync signal and the thyristor status signal returning calculate, resolve and judge; Described programmable logic cells carries out timing synchronization and pulse code to conditioned signal, produces the pulse signal that triggers thyristor valve; Pulse signal converts light signal to by described signal synchronize conversion cell, and by optical signal transmission to the driver element of thyristor trigger board, form continuous trigger pulse, trigger pulse synchronously triggers thyristor, thereby realize the control to thyristor valve, the status signal of thyristor converts to after light signal through described thyristor trigger board, transmission turns back to described signal processing unit, signal processing unit is synchronously adjusted triggering sequential and pulse code, and status signal is sent to valve base electronic device by communication unit.
Described pulse signal converts light signal to by described signal synchronize conversion cell, and the driver element that light signal is transferred to thyristor trigger board by fiber distribution carries out power amplification, form continuous trigger pulse, trigger pulse synchronously triggers thyristor, thereby realizes the on-line monitoring to the duty of thyristor.
The pulse signal of thyristor converts to after light signal through described thyristor trigger board, transmission turns back to described signal processing unit, signal processing unit is according to the duty of the status signal judgement thyristor valve returning, and synchronously adjust triggering sequential and pulse code, and status signal is sent to valve base electronic device by communication unit, by valve base electronic device, status signal is carried out after data processing, the man-machine interface that sends to workstation is carried out figure and data demonstration.
Described signals collecting and conditioning unit receive the trigger pip that valve base electronic device sends, and the trigger pip of input is carried out to high speed acquisition, shaping and filter preprocessing obtain conditioned signal, and conditioned signal is sent to signal processing unit by internal bus.
Described programmable logic cells carries out timing synchronization and pulse code according to the running test operating mode of thyristor valve and triggering duty to conditioned signal, produces the pulse signal that triggers thyristor valve, and pulse signal is sent to described signal synchronize conversion cell.
The status signal of the thyristor valve after described communication unit is resolved signal processing unit sends to valve base electronic device according to host-host protocol through external bus.
The present invention provides the interface switching device described in a kind of application to carry out interface conversion method simultaneously, and described conversion method comprises the following steps:
Step 1: the valve base electronic device trigger pip output terminal of test unit is connected with the valve control signal receiving end of described interface switching device by optical fiber;
Step 2: the trigger pip output terminal of described interface switching device and the thyristor status signal input end returning are connected with the status signal transmitting terminal returning with the trigger pip receiving end of every grade of thyristor trigger board of thyristor valve respectively;
Step 3: the trigger pip that valve base electronic device sends is delivered to described interface switching device, in interface switching device, carry out signal conversion, triggering command after conversion is divided into multichannel trigger pip and delivers to thyristor trigger board, thyristor trigger board is converted into light signal after trigger pulse, described trigger pulse triggers thyristor; Thyristor trigger board also returns to the status signal of thyristor to interface switching device with the form of return pulse simultaneously, interface switching device sends to status signal the control system host computer of test unit, thereby realizes the on-line monitoring to the duty of thyristor.
Compared with prior art, beneficial effect of the present invention is:
1. the interface switching device of series thyristor valve operating test provided by the invention has designed Multi-encoding mode, can adapt to the thyristor valve performance test demand of different size;
2. can realize high precision, two-forty, the real-time synchronization conversion of trigger pip under various running test operating modes;
3. guarantee simultaneity and the consistance of the trigger pulse of series thyristor level;
4. security, the reliability and stability of series thyristor valve operating test have been improved;
5. device is used and arranges flexibly, compatible strong, can carry out interface and Function Extension as required;
6. greatly reduce the risk of thyristor valve fault in running test, improved success of the test rate and test unit utilization factor.
Advantage can be write a little again, from the angle that method and apparatus is different, can describe
Accompanying drawing explanation
Fig. 1 is the interface switching device structural drawing of series thyristor valve operating test;
Fig. 2 is the interface conversion method application drawing of series thyristor valve operating test.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As Fig. 1, the invention provides a kind of interface switching device of series thyristor valve operating test, described device comprises signals collecting and conditioning unit, signal processing unit, programmable logic cells, signal synchronize conversion cell and communication unit; Described signals collecting is connected successively with conditioning unit, signal processing unit, programmable logic cells and signal synchronize conversion cell, and described signal processing unit connects valve base electronic device by communication unit.
Described signals collecting and conditioning unit receive the trigger pip that valve base electronic device sends, and the trigger pip of input is carried out to pre-service obtain conditioned signal, and conditioned signal is sent to signal processing unit; Described signal processing unit reference sync signal and the thyristor status signal returning calculate, resolve and judge; Described programmable logic cells carries out timing synchronization and pulse code to conditioned signal, produces the pulse signal that triggers thyristor valve; Pulse signal converts light signal to by described signal synchronize conversion cell, and by optical signal transmission to the driver element of thyristor trigger board, form continuous trigger pulse, trigger pulse synchronously triggers thyristor, thereby realize the control to thyristor valve, the status signal of thyristor converts to after light signal through described thyristor trigger board, transmission turns back to described signal processing unit, signal processing unit is synchronously adjusted triggering sequential and pulse code, and status signal is sent to valve base electronic device by communication unit.
Described pulse signal converts light signal to by described signal synchronize conversion cell, and the driver element that light signal is transferred to thyristor trigger board by fiber distribution carries out power amplification, form continuous trigger pulse, trigger pulse synchronously triggers thyristor, thereby realizes the on-line monitoring to the duty of thyristor.
The pulse signal of thyristor converts to after light signal through described thyristor trigger board, transmission turns back to described signal processing unit, signal processing unit is according to the duty of the status signal judgement thyristor valve returning, and synchronously adjust triggering sequential and pulse code, and status signal is sent to valve base electronic device by communication unit, by valve base electronic device, status signal is carried out after data processing, the man-machine interface that sends to workstation is carried out figure and data demonstration.
Described signals collecting and conditioning unit receive the trigger pip that valve base electronic device sends, and the trigger pip of input is carried out to high speed acquisition, shaping and filter preprocessing obtain conditioned signal, and conditioned signal is sent to signal processing unit by internal bus.
Described programmable logic cells carries out timing synchronization and pulse code according to the running test operating mode of thyristor valve and triggering duty to conditioned signal, produces the pulse signal that triggers thyristor valve, and pulse signal is sent to described signal synchronize conversion cell.
The status signal of the thyristor valve after described communication unit is resolved signal processing unit sends to valve base electronic device according to host-host protocol through external bus.
As Fig. 2, the present invention provides the interface switching device described in a kind of application to carry out interface conversion method simultaneously, and described conversion method comprises the following steps:
Step 1: the valve base electronic device trigger pip output terminal of test unit is connected with the valve control signal receiving end of described interface switching device by optical fiber;
Step 2: the trigger pip output terminal of described interface switching device and the thyristor status signal input end returning are connected with the status signal transmitting terminal returning with the trigger pip receiving end of every grade of thyristor trigger board of thyristor valve respectively;
Step 3: the trigger pip that valve base electronic device sends is delivered to described interface switching device, in interface switching device, carry out signal conversion, triggering command after conversion is divided into multichannel trigger pip and delivers to thyristor trigger board, thyristor trigger board is converted into light signal after trigger pulse, described trigger pulse triggers thyristor; Thyristor trigger board also returns to the status signal of thyristor to interface switching device with the form of return pulse simultaneously, interface switching device sends to status signal the control system host computer of test unit, thereby realizes the on-line monitoring to the duty of thyristor.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although the present invention is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not depart from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.
Claims (8)
1. an interface switching device for series thyristor valve operating test, is characterized in that: described device comprises signals collecting and conditioning unit, signal processing unit, programmable logic cells, signal synchronize conversion cell and communication unit; Described signals collecting is connected successively with conditioning unit, signal processing unit, programmable logic cells and signal synchronize conversion cell, and described signal processing unit connects valve base electronic device by communication unit.
2. the interface switching device of series thyristor valve operating test as claimed in claim 1, it is characterized in that: described signals collecting and conditioning unit receive the trigger pip that valve base electronic device sends, and the trigger pip of input is carried out pre-service and obtained conditioned signal, and conditioned signal is sent to signal processing unit; Described signal processing unit reference sync signal and the thyristor status signal returning calculate, resolve and judge; Described programmable logic cells carries out timing synchronization and pulse code to conditioned signal, produces the pulse signal that triggers thyristor valve; Pulse signal converts light signal to by described signal synchronize conversion cell, and by optical signal transmission to the driver element of thyristor trigger board, form continuous trigger pulse, trigger pulse synchronously triggers thyristor, thereby realize the control to thyristor valve, the status signal of thyristor converts to after light signal through described thyristor trigger board, transmission turns back to described signal processing unit, signal processing unit is synchronously adjusted triggering sequential and pulse code, and status signal is sent to valve base electronic device by communication unit.
3. the interface switching device of series thyristor valve operating test as claimed in claim 2, it is characterized in that: described pulse signal converts light signal to by described signal synchronize conversion cell, and the driver element that light signal is transferred to thyristor trigger board by fiber distribution carries out power amplification, form continuous trigger pulse, trigger pulse synchronously triggers thyristor, thereby realizes the on-line monitoring to the duty of thyristor.
4. the interface switching device of series thyristor valve operating test as claimed in claim 3, it is characterized in that: the pulse signal of thyristor converts to after light signal through described thyristor trigger board, transmission turns back to described signal processing unit, signal processing unit is according to the duty of the status signal judgement thyristor valve returning, and synchronously adjust triggering sequential and pulse code, and status signal is sent to valve base electronic device by communication unit, by valve base electronic device, status signal is carried out after data processing, the man-machine interface that sends to workstation is carried out figure and data demonstration.
5. the interface switching device of series thyristor valve operating test as claimed in claim 1, it is characterized in that: described signals collecting and conditioning unit receive the trigger pip that valve base electronic device sends, and the trigger pip of input is carried out high speed acquisition, shaping and filter preprocessing and obtained conditioned signal, and conditioned signal is sent to signal processing unit by internal bus.
6. the interface switching device of series thyristor valve operating test as claimed in claim 1, it is characterized in that: described programmable logic cells carries out timing synchronization and pulse code according to the running test operating mode of thyristor valve and triggering duty to conditioned signal, produce the pulse signal that triggers thyristor valve, and pulse signal is sent to described signal synchronize conversion cell.
7. the interface switching device of series thyristor valve operating test as claimed in claim 1, is characterized in that: the status signal of the thyristor valve after described communication unit is resolved signal processing unit sends to valve base electronic device according to host-host protocol through external bus.
8. application interface switching device as claimed in claim 1 carries out an interface conversion method, it is characterized in that: described conversion method comprises the following steps:
Step 1: the valve base electronic device trigger pip output terminal of test unit is connected with the valve control signal receiving end of described interface switching device by optical fiber;
Step 2: the trigger pip output terminal of described interface switching device and the thyristor status signal input end returning are connected with the status signal transmitting terminal returning with the trigger pip receiving end of every grade of thyristor trigger board of thyristor valve respectively;
Step 3: the trigger pip that valve base electronic device sends is delivered to described interface switching device, in interface switching device, carry out signal conversion, triggering command after conversion is divided into multichannel trigger pip and delivers to thyristor trigger board, thyristor trigger board is converted into light signal after trigger pulse, described trigger pulse triggers thyristor; Thyristor trigger board also returns to the status signal of thyristor to interface switching device with the form of return pulse simultaneously, interface switching device sends to status signal the control system host computer of test unit, thereby realizes the on-line monitoring to the duty of thyristor.
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| CN201310740956.0A CN103698684B (en) | 2013-12-27 | 2013-12-27 | The interface switching device of a kind of series thyristor valve operating test and conversion method thereof |
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Cited By (4)
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| CN103926524A (en) * | 2014-04-21 | 2014-07-16 | 许继电气股份有限公司 | Method for testing converter valve control device in low-voltage control mode |
| CN109254214A (en) * | 2018-10-17 | 2019-01-22 | 中电普瑞电力工程有限公司 | Valve base electronic device Auto-Test System and method |
| CN109669119A (en) * | 2019-02-13 | 2019-04-23 | 云南电网有限责任公司电力科学研究院 | A kind of detection system and method for valve base electronic device |
| CN112180192A (en) * | 2020-09-27 | 2021-01-05 | 云南电网有限责任公司昭通供电局 | Power electronic equipment field test detection method |
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