CN204422719U - A kind of VBE system equipment fault detection system of high voltage direct current transmission converter valve - Google Patents
A kind of VBE system equipment fault detection system of high voltage direct current transmission converter valve Download PDFInfo
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- CN204422719U CN204422719U CN201520098552.0U CN201520098552U CN204422719U CN 204422719 U CN204422719 U CN 204422719U CN 201520098552 U CN201520098552 U CN 201520098552U CN 204422719 U CN204422719 U CN 204422719U
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Abstract
The utility model relates to a kind of VBE system equipment fault detection system of high voltage direct current transmission converter valve, comprising: converter valve artificial circuit, for simulating the real work situation of converter valve; VBE board test platform, for controlling and monitor the duty of converter valve valve block; Test macro, for sending test massage to described VBE board test platform, and collects the running state data of VBE board; Described VBE board test platform receives the test signal that described test macro sends, and just monitors described converter valve artificial circuit and trigger.The utility model can show VBE board faults, enables maintenance personal investigate VBE board faults timely fast, and formulates maintenance schedule and maintenance program targetedly.
Description
Technical field
The utility model relates to high-voltage dc transmission electrical domain, is specifically related to a kind of VBE system equipment fault detection system of high voltage direct current transmission converter valve.
Background technology
D.C. high voltage transmission is widely used at present and develops swift and violent power industry field, in the trans-regional remote power transmission of country, regional power grid are interconnected, bear key player.A kind of particular form of D.C. high voltage transmission the converting plant of D.C. high voltage transmission and Inverter Station is incorporated in a current conversion station, complete AC-DC at same place, the commutation course exchanged is become again by direct current, the structure of its rectification and inversion, facility and the D.C. high voltage transmission of AC are just the same, there is the most basic advantage of conventional high-pressure direct current transportation, Asynchronous Interconnection can be realized, realize the Power System Interconnection of different alternating voltage preferably, by 2 AC synchronous electrical network isolation, effectively can cut off influencing each other between each interconnected AC synchronous net, limiting short-circuit current, and dominant eigenvalues controls simple, management and running are convenient.Transmit electricity with customary DC and compare, its advantage is more outstanding: do not have DC line, and DC side loss is little; DC side can select the low-voltage, high-current method of operation, to reduce the dielectric level of the relevant devices such as converter power transformer, converter valve, reduces cost; DC side harmonics can all control in the valve Room, can not produce the interference to communication facilities; Current conversion station does not need earthing pole, without the need to DC equipment such as DC filter, direct current arrester, DC switch field, direct current carrier, thus reduces investment outlay than the D.C. high voltage transmission of routine.
Be not difficult to find out, the importance of current conversion station in D.C. high voltage transmission, pole control system and the converter valve main circuit of current conversion station play an important role in current conversion station, so to VBE (valve baseelectronics, valve base electronic device) working condition of each board or the situation such as whether to damage are necessary to judge at any time in system, how to judge that it damages or working condition is not be in normal condition to become the ability that those skilled in the art should possess, but in prior art, not a good system or platform do not allow those skilled in the art's quick obtaining aforementioned capabilities.
In sum, also there is certain defect in prior art.
Utility model content
In view of this, be necessary the VBE system equipment fault detection system that a kind of high voltage direct current transmission converter valve is provided, VBE board faults can be shown, enable maintenance personal investigate VBE board faults timely fast, and formulate maintenance schedule and maintenance program targetedly.
The utility model provides following technical scheme for this reason:
A VBE system equipment fault detection system for high voltage direct current transmission converter valve, comprising:
Converter valve artificial circuit, for simulating the real work situation of converter valve; VBE board test platform, for controlling and monitor the duty of converter valve valve block; Test macro, for sending test massage to described VBE board test platform, and collects the running state data of VBE board; Described VBE board test platform receives the test signal that described test macro sends, and just monitors described converter valve artificial circuit and trigger.
Further, described test macro comprises:
Usb data capture card, monitoring PG (program, program or software), be provided with VBE board test procedure debugging software in described monitoring PG, for performing dependence test program, and the test result of the relevant VBE board test platform of display; DSP (Digital Signal processor is provided with in described usb data capture card, digital signal processor) chip of programming, instruction for receiving described monitoring PG sends test control signal to VBE board test platform, read the information of VBE test platform simultaneously, and the information of read VBE test platform is uploaded to described monitoring PG.
Further, described converter valve artificial circuit comprises:
(R is the symbol of resistance for mains supply, switch, fuse, pressure regulator, RC, C is the symbol of electric capacity) damping circuit, TVM (thyristor voltage monitor, threshold voltage monitors) plate, converter valve, load, connect successively described switch, fuse, converter valve and the load of described mains supply forms path; Described converter valve is in series by 4 valve blocks, each valve block is all parallel with a RC damping circuit and one block of TVM plate; Described pressure regulator is used for being raised by the voltage of mains supply as experimental voltage, for converter valve artificial circuit provides operating voltage; Described RC damping circuit is for limiting the electric stress of valve block.
Further, described VBE board test platform comprises:
Control panel, light receiving plate, light expelling plate, RPU (Recovery protection unit, convalescence protected location) plate, the test control signal that described control panel sends for receiving described usb data capture card; Described control panel sends start pulse signal to described smooth expelling plate, and described start pulse signal is converted to light trigger pulse and is sent to valve block in described converter valve in order to trigger valve block by described smooth expelling plate; Described smooth expelling plate is provided with two pieces, and one piece of light expelling plate is that 2 pieces of valve blocks launch start pulse signal simultaneously; Described light receiving plate returns inspection signal in order to the TVM plate receiving described TVM plate and return, and described TVM plate is returned inspection signal and be sent to described control panel, in order to feed back the state of described valve block; Valve block switch off current signal is sent to described RPU plate by described control panel, and described RPU plate damages because of overvoltage in order to prevent valve block; Its respective status signal is all fed back to described usb data capture card by described control panel, light receiving plate, light expelling plate, RPU plate.
Further, described test control signal comprises: FCS (fire control signal, Trig control signal), UV (under voltage, low-voltage), CB_ON (circuit breakeron, breaker closing), CONV DBLK (converter deblock, converter deblocking), BYPPAS-ACT (bypass active, bypass is effective), SYSTEM ACT (system active, system is effective), SYSTEM PAS (system passive, system in effective), SPARE (spare, for subsequent use).
Further:
Described control panel is the Trig control signal that receives of control panel and the malleation of corresponding valve circuit and lnp information to the status signal that described usb data capture card feeds back;
Described light receiving plate is malleation and the lnp information of the corresponding valve section of light receiving plate to the status signal that described usb data capture card feeds back;
Described smooth expelling plate is the light trigger pulse of the corresponding valve section of light expelling plate to the status signal that described usb data capture card feeds back;
Described RPU plate is the zero-current switching signal of the corresponding valve section of RPU plate to the status signal that described usb data capture card feeds back.
The utility model is by arranging the combination of converter valve artificial circuit, VBE board test platform, test macro three, the pole control system of current conversion station and the working condition of converter valve main circuit are simulated, and by monitoring the setting of PG, usb data capture card, control panel, light expelling plate, light receiving plate, RPU plate, RC damping circuit, TVM plate, converter valve valve block, the test result of relevant VBE board can be shown timely, described test result comprise VBE board whether fault, manifesting of breaking down what is, failure cause etc.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the concrete wiring diagram of the utility model embodiment.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the utility model embodiment and accompanying drawing, the technical scheme in the utility model embodiment is clearly and completely described.It should be noted that, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not paying the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
Embodiment
As shown in Figure 1, the VBE system equipment fault detection system of a kind of high voltage direct current transmission converter valve that the present embodiment provides, comprising: converter valve artificial circuit, for simulating the real work situation of converter valve; VBE board test platform, for controlling and monitor the duty of converter valve valve block; Test macro, for sending test massage to described VBE board test platform, and collects the running state data of VBE board; Described VBE board test platform receives the test signal that described test macro sends, and just monitors described converter valve artificial circuit and trigger.
As shown in Figure 2, as preferably, described test macro comprises:
Usb data capture card, monitoring PG, be provided with VBE board test procedure debugging software in described monitoring PG, for performing dependence test program, and the test result of the relevant VBE board test platform of display; Dsp program chip is provided with in described usb data capture card, instruction for receiving described monitoring PG sends test control signal to VBE board test platform, read the information of VBE test platform simultaneously, and the information of read VBE test platform is uploaded to described monitoring PG.
As preferably, described converter valve artificial circuit comprises:
Mains supply, switch, fuse, pressure regulator, RC damping circuit, TVM plate, converter valve, load, connect successively described switch, fuse, converter valve and the load of described mains supply forms path; Described converter valve is in series by 4 valve blocks, and adopt single-phase half-wave rectifier circuit topology, have the function of carrying out rectification or inversion, be converted to direct current or direct current is converted to interchange by interchange, each valve block all adopts light to trigger; Each valve block is all parallel with a RC damping circuit and one block of TVM plate; Described pressure regulator is used for being raised by the voltage of mains supply as experimental voltage, for converter valve artificial circuit provides operating voltage; Described RC damping circuit, for limiting the electric stress of valve block, to be opened or all pressures in turn off process play an important role at valve block, and as preferably, described RC damping circuit is a resistance and a capacitances in series.
It should be noted that, the design of converter valve artificial circuit is intended to the real work situation simulating converter valve, make the control of VBE system and observation process as much as possible close to actual, thus reflect the key signal data stream between VBE system and converter valve truly, to test each board of VBE system.In DC transmission engineering, converter valve adopts 6 pulse wave rectifier circuit, and this circuit is when being operated in three-phase voltage input.If the input of converter valve artificial circuit also adopts three-phase voltage, will greatly increase the complexity of this circuit.Find after deliberation, when converter valve artificial circuit topology adopts single-phase half-wave rectifier circuit, the waveform similarity of circuit output and valve block work wave and actual DC power transmission engineering converter valve valve block.Therefore converter valve artificial circuit adopts the single phase half wave controlled rectifier of 4 valve blocks series connection, is used for simulating the real work situation of converter valve.
As preferably, described VBE board test platform comprises:
Control panel, light receiving plate, light expelling plate, RPU plate, the test control signal that described control panel sends for receiving described usb data capture card; Described control panel sends start pulse signal to described smooth expelling plate, and described start pulse signal is converted to light trigger pulse and is sent to valve block in described converter valve in order to trigger valve block by described smooth expelling plate; Described smooth expelling plate is provided with two pieces, and one piece of light expelling plate is that 2 pieces of valve blocks launch start pulse signal simultaneously; Described light receiving plate returns inspection signal in order to the TVM plate receiving described TVM plate and return, and described TVM plate is returned inspection signal and be sent to described control panel, in order to feed back the state of described valve block; Valve block switch off current signal is sent to described RPU plate by described control panel, and described RPU plate damages because of overvoltage in order to prevent valve block; Its respective status signal is all fed back to described usb data capture card by described control panel, light receiving plate, light expelling plate, RPU plate.
It should be noted that; the signal that RPU plate is delivered in described micro-control making sheet is valve block switch off current signal valve block switch off current signal; after RPU plate receives described valve block switch off current signal, enable for RPU light pulse is sent to converter valve artificial circuit RPU unit; the duration of RPU enable light pulse, converter valve artificial circuit RPU unit starting defencive function, damages in the overvoltage of reverse recovery internal cause for preventing valve block.When minimum VBE system starts, whether each board of meeting self-inspection is normal, therefore must there is the minimum VBE system of RPU plate could work, but the RPU unit on converter valve artificial circuit can't send a signal to minimum VBE system, so whether there is the work not affecting minimum VBE system in converter valve artificial circuit RPU unit, converter valve artificial circuit is environment under low pressure simultaneously, there is not overpressure situation, so do not need RPU unit, consider that in test macro, the converter valve artificial circuit in the present embodiment does not configure RPU unit to simplify.
As preferably, described test control signal includes but not limited to following signal: FCS, UV, CB_ON, CONV DBLK, BYPPAS-ACT, SYSTEM ACT, SYSTEM PAS, SPARE.
As preferably, described control panel is malleation and the lnp information of the Trig control signal that receives of control panel and corresponding valve circuit to the status signal that described usb data capture card feeds back; Described light receiving plate is malleation and the lnp information of the corresponding valve section of light receiving plate to the status signal that described usb data capture card feeds back; Described smooth expelling plate is the light trigger pulse of the corresponding valve section of light expelling plate to the status signal that described usb data capture card feeds back; Described RPU plate is the zero-current switching signal of the corresponding valve section of RPU plate to the status signal that described usb data capture card feeds back.
It should be noted that, described valve circuit specifically refers to: the circuit be made up of valve block and corresponding damping circuit, TVM plate and the RPU unit of some, is used for realizing the main circuit of the change of current (rectification or inversion); Described valve section: valve circuit middle valve plate number ratio is more, in a DC engineering, the quantity of valve circuit middle valve plate has more than 1,000, usual one piece of light expelling plate or light receiving plate are only responsible for triggering or the monitoring of a part of valve block, and this part valve block and adjunct circuit thereof, can become valve section.Therefore, valve section can be a part in valve circuit, for concrete transmitting or dash receiver, namely indicates by valve section.
As preferably, for making the present embodiment be more readily understood, below the aspect such as workflow, duty of the present embodiment is described in detail:
The workflow of the present embodiment is as follows:
First, start test macro, on test macro human-computer interaction interface, (not shown) arranges the state of test control signal, comprising: FCS, UV, CB_ON, CONV DBLK, BYPPAS-ACT, SYSTEM ACT, SYSTEM PAS, SPARE.Wherein FCS arranges the initial electrical angle that in its one-period, high level occurs, all the other are and arrange level height; Secondly, close VBE board test platform power switch, converter valve of closing main circuit switch; Then, usb data capture card gathers VBE board test platform data, test macro interface shows each signal waveform, and points out guilty culprit board.
When usb data capture card sends proper testing signal, comprise: SYSTEM ACT, CB_ON, FCS, CONV DBLK signal, during without UV signal, in the signal that usb data capture card gathers, if light receiving plate returns inspection, signal is abnormal, as without malleation or underbalance pulse, or repeatedly occurs in one-period, or waveform is not normal pulse signal, then the fault definition of VBE is light receiving plate fault;
If RPU plate feeds back without eoc signal, or repeatedly occur in eoc signal one-period, or waveform is not normal impulse level signal, and now Trig control signal is normal, then the fault definition of VBE is RPU plate fault;
If light expelling plate triggerless pulse signal feeds back, or repeatedly occurs in one-period, or waveform is not normal level signal, and now Trig control signal is normal, then the fault definition of VBE is light expelling plate fault
If control panel triggerless control signal is fed back, or repeatedly occurs in one-period, or waveform is not normal level signal, then the fault definition of VBE is control panel fault.
In full in described various signal, for normal board, some typical test case are as follows:
When test macro display sends SYSTEM ACT, CB_ON signal, without FCS, CONV DBLK, UV signal, then two-way TVM plate returns and examines signal and have waveform but abnormal, and Trig control signal, trigger pip and eoc signal are without waveform.
When test macro display sends SYSTEM ACT, CB_ON, FCS signal, without CONV DBLK, UV signal, then Trig control signal and two-way TVM plate return inspection signal normal waveform, and other signals are without waveform.
When test macro display sends SYSTEM ACT, CB_ON, FCS, CONV DBLK signal, without UV signal, then Trig control signal, trigger pip, two-way TVM plate return and examine signal and eoc signal all has normal waveform, VBE system worked well.
The combination of other signals also has a lot, does not repeat them here.
The utility model is by arranging the combination of converter valve artificial circuit, VBE board test platform, test macro three, the pole control system of current conversion station and the working condition of converter valve main circuit are simulated, and by monitoring the setting of PG, usb data capture card, control panel, light expelling plate, light receiving plate, RPU plate, RC damping circuit, TVM plate, converter valve valve block, the test result of relevant VBE board can be shown timely, described test result comprise VBE board whether fault, manifesting of breaking down what is, failure cause etc.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (3)
1. a VBE system equipment fault detection system for high voltage direct current transmission converter valve, is characterized in that, comprising:
Converter valve artificial circuit, for simulating the real work situation of converter valve; VBE board test platform, for controlling and monitor the duty of converter valve valve block; Test macro, for sending test massage to described VBE board test platform, and collects the running state data of VBE board; Described converter valve artificial circuit, VBE board test platform are connected successively with test macro, and described VBE board test platform receives the test signal that described test macro sends, and monitors described converter valve artificial circuit and trigger;
Described converter valve artificial circuit comprises:
Mains supply, switch, fuse, pressure regulator, RC damping circuit, TVM plate, converter valve, load, connect successively described switch, fuse, converter valve and the load of described mains supply forms path; Described converter valve is in series by 4 valve blocks, each valve block is all parallel with a RC damping circuit and one block of TVM plate; Described pressure regulator is used for being raised by the voltage of mains supply as experimental voltage, for converter valve artificial circuit provides operating voltage; Described RC damping circuit is for limiting the electric stress of valve block.
2. the VBE system equipment fault detection system of high voltage direct current transmission converter valve according to claim 1, it is characterized in that, described test macro comprises:
Usb data capture card and monitoring PG; Dsp program chip is provided with in described usb data capture card, instruction for receiving described monitoring PG sends test control signal to VBE board test platform, read the information of VBE board test platform simultaneously, and the information of read VBE board test platform is uploaded to described monitoring PG.
3. the VBE system equipment fault detection system of high voltage direct current transmission converter valve according to claim 2, is characterized in that, described VBE board test platform comprises:
Control panel, light receiving plate, light expelling plate, RPU plate, the test control signal that described control panel sends for receiving described usb data capture card; Described control panel sends start pulse signal to described smooth expelling plate, and described start pulse signal is converted to light trigger pulse and is sent to valve block in described converter valve in order to trigger valve block by described smooth expelling plate; Described smooth expelling plate is provided with two pieces, and one piece of light expelling plate is that 2 pieces of valve blocks launch start pulse signal simultaneously; Described light receiving plate returns inspection signal in order to the TVM plate receiving described TVM plate and return, and described TVM plate is returned inspection signal and be sent to described control panel, in order to feed back the state of described valve block; Valve block switch off current signal is sent to described RPU plate by described control panel, and described RPU plate damages because of overvoltage in order to prevent valve block; Its respective status signal is all fed back to described usb data capture card by described control panel, light receiving plate, light expelling plate, RPU plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520098552.0U CN204422719U (en) | 2015-02-09 | 2015-02-09 | A kind of VBE system equipment fault detection system of high voltage direct current transmission converter valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520098552.0U CN204422719U (en) | 2015-02-09 | 2015-02-09 | A kind of VBE system equipment fault detection system of high voltage direct current transmission converter valve |
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| CN204422719U true CN204422719U (en) | 2015-06-24 |
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| CN201520098552.0U Expired - Fee Related CN204422719U (en) | 2015-02-09 | 2015-02-09 | A kind of VBE system equipment fault detection system of high voltage direct current transmission converter valve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727963A (en) * | 2017-10-10 | 2018-02-23 | 中国南方电网有限责任公司超高压输电公司昆明局 | The DC electrical measurement fault distinguishing method verified based on historical data sample storehouse and algorithm |
| CN108549007A (en) * | 2018-04-02 | 2018-09-18 | 国网湖南省电力有限公司 | Analogue system and application process are protected in the extra-high voltage direct-current control for having both board test function |
| CN109358241A (en) * | 2018-09-26 | 2019-02-19 | 南方电网科学研究院有限责任公司 | Flexible direct current transmission converter valve detection system and method |
-
2015
- 2015-02-09 CN CN201520098552.0U patent/CN204422719U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727963A (en) * | 2017-10-10 | 2018-02-23 | 中国南方电网有限责任公司超高压输电公司昆明局 | The DC electrical measurement fault distinguishing method verified based on historical data sample storehouse and algorithm |
| CN107727963B (en) * | 2017-10-10 | 2019-08-09 | 中国南方电网有限责任公司超高压输电公司昆明局 | The electrical quantities measurement fault distinguishing method verified based on historical data sample and algorithm |
| CN108549007A (en) * | 2018-04-02 | 2018-09-18 | 国网湖南省电力有限公司 | Analogue system and application process are protected in the extra-high voltage direct-current control for having both board test function |
| CN109358241A (en) * | 2018-09-26 | 2019-02-19 | 南方电网科学研究院有限责任公司 | Flexible direct current transmission converter valve detection system and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20160209 |