CN103257591B - A kind of tap lifting instruction simulator - Google Patents
A kind of tap lifting instruction simulator Download PDFInfo
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- CN103257591B CN103257591B CN201310109614.9A CN201310109614A CN103257591B CN 103257591 B CN103257591 B CN 103257591B CN 201310109614 A CN201310109614 A CN 201310109614A CN 103257591 B CN103257591 B CN 103257591B
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Abstract
A kind of tap lifting instruction simulator, belong to electric measurement field, particularly relate to a kind of proving installation of the DC control and protection system simulation study for high-voltage direct-current transmission system, neutral current signal, by the first and second proportioning elements, is connected to the first and second arithmetical operation elements; First arithmetical operation element, by the first signed magnitude arithmetic(al) device, is connected to tap rising signals module; The voltage rise signal end of voltage control module and the angle rising signals end of Angle ambiguity module, be connected to tap rising signals module; Second arithmetical operation element, by the second signed magnitude arithmetic(al) device, is connected to tap dropping signal module; The voltage reduction signal end of voltage control module and the angle dropping signal end of Angle ambiguity module, be connected to tap dropping signal module.This device can be simulated truly, reflect the running status of DC control protective device, for the research of DC control protective device or design provide corresponding simulation result.
Description
Technical field
The invention belongs to electric measurement field, particularly relate to a kind of tap joint position simulation testing device of the DC control and protection system simulation study for high-voltage direct-current transmission system.
Background technology
The continuous growth of electricity needs result in the future development of transmission system to long distance, Large Copacity and high stability.Along with the construction project of the ultra-high voltage AC transmission engineering in each Grid and high voltage direct current transmission project constantly increases, the electrical network of power consumption concentrated area presents the extra-high voltage alternating current-direct current series-parallel connection receiving end electrical network feature of obvious multi-infeed DC, electric network composition is tight, between many ac and dc circuits, electrical distance is tightr, after extra-high voltage and the ultrahigh-voltage alternating-current system failure, easy initiation comprises many direct currents commutation failure simultaneously of high voltage direct current, and its rejuvenation of the commutation failure of multiple-circuit line will produce greater impact to AC system, if the recovery policy mismate of each straight-flow system, then also likely cause many direct currents that continuous print commutation failure occurs simultaneously, even cause direct current locking.There is bipolar locking in multiple-circuit line, a large amount of trend shifts or on a large scale by initiating system stable problem simultaneously.Reciprocation between this ac and dc systems brings huge challenge to the safe operation of extra-high voltage alternating current-direct current series-parallel connection receiving end electrical network.
Therefore, in research or the design phase of high voltage direct current transmission project, must the reciprocation between ac and dc systems be tested to the stability of extra-high voltage alternating current-direct current series-parallel connection receiving end electrical network and be emulated, and with reference to test and simulation result, the result of research or design is verified, the stability of system is assessed.Chinese utility model patent " a kind of Multi-infeed HVDC transmission system real-timedigital simulation model " (utility model patent number: ZL201210532559.X Authorization Notice No.: CN102945004A) discloses Multi-infeed HVDC transmission system real-timedigital simulation model, it comprises the equivalent super high voltage direct current electricity transmission system of multiple parallel connection, and described super high voltage direct current electricity transmission system comprises primary system real-timedigital simulation model and electrical secondary system real-timedigital simulation model; Described primary system real-timedigital simulation model comprises current conversion station and DC power transmission line, and described current conversion station is arranged on the two ends of DC power transmission line; Described electrical secondary system real-timedigital simulation model comprises current conversion station control system and protection system, and described current conversion station control system is connected with current conversion station with protection system, for the operation of control and protection current conversion station.By the control and protection that current conversion station control system and protection system are run current conversion station, after avoiding fault in ac transmission system, easily cause the impact that multiple-circuit line simultaneous faults and multiple-circuit line fault and rejuvenation thereof produce AC system.But this realistic model does not relate to the emulation of tap joint position, cannot the tap joint position running status of simulated high-pressure direct current transportation DC control and protection system truly.
Summary of the invention
The object of the invention is to provide a kind of tap to be elevated instruction simulator; it can simulate the tap joint position state of reflection D.C. high voltage transmission DC control and protection system truly; for the tap joint position research of DC control protective device or design provide corresponding simulation result, solve for DC control protective device tap joint position research or design the technical matters of verification platform be provided.
The present invention solves the problems of the technologies described above adopted technical scheme:
A kind of tap lifting instruction simulator, is arranged in the change of current variation apparatus for controlling connection of DC control and protection system, for the emulation of the DC control and protection system of high-voltage direct-current transmission system, it is characterized in that:
Described tap lifting instruction simulator comprises the first proportioning element, second proportioning element, first arithmetical operation element, second arithmetical operation element, first signed magnitude arithmetic(al) device, the second signed magnitude arithmetic(al) device, tap rising signals module, tap dropping signal module, voltage control module and Angle ambiguity module;
Neutral current signal, respectively by the first described proportioning element and the second proportioning element, is connected to the first described arithmetical operation element and the second arithmetical operation element;
The output terminal of described first arithmetical operation element, by the first signed magnitude arithmetic(al) device, is connected to the current signal input end of described tap rising signals module; The voltage rise signal end of described voltage control module, is connected to the voltage signal inputs of tap rising signals module; The angle rising signals end of described Angle ambiguity module, is connected to the angle signal input end of tap rising signals module; The output terminal of described tap rising signals module, forms the tap rising signals end of described tap lifting instruction simulator;
The output terminal of described second arithmetical operation element, by the second signed magnitude arithmetic(al) device, is connected to the current signal input end of described tap dropping signal module; The voltage reduction signal end of described voltage control module, is connected to the voltage signal inputs of tap dropping signal module; The angle dropping signal end of described Angle ambiguity module, is connected to the angle signal input end of tap dropping signal module; The output terminal of described tap dropping signal module, forms the tap dropping signal end of described tap lifting instruction simulator.
The one preferably technical scheme of tap lifting instruction simulator of the present invention, is characterized in that described tap rising signals module and tap dropping signal module are the tap signaling modules that two block structures are identical; Described tap signaling module comprises first this schmitt trigger, phase inverter, first with Men Zhi tri-and door, or door, first timer, second timer and first mode selector switch; The current signal input end of described tap signaling module, by first this schmitt trigger, is connected to the first input end of first and door; The voltage signal inputs of described tap signaling module, is connected to the second input end of first and door; Rectification state signal is connected to the first input end of second and door, and is connected to the 3rd input end of first and door by phase inverter; The angle signal input end of described tap signaling module, is connected to the second input end of second and door; First with door and second and the output terminal of door, be connected respectively to or an input end of door; Or the output terminal of door, successively by first mode selector switch, the 3rd with door and second timer, be connected to the output terminal of described tap signaling module.
The better technical scheme of one of tap lifting instruction simulator of the present invention, is characterized in that voltage control module comprises the 3rd arithmetic arithmetic element, the 3rd proportioning element, second this schmitt trigger and the 3rd this schmitt trigger; D. c. voltage signal is connected to the input end of the 3rd arithmetic arithmetic element; The output terminal of the 3rd arithmetic arithmetic element, successively by the 3rd proportioning element and second this schmitt trigger, is connected to the voltage rise signal end of voltage control module; The output terminal of the 3rd arithmetic arithmetic element, by the 3rd this schmitt trigger; Be connected to the voltage reduction signal end of voltage control module.
The technical scheme of a kind of improvement of tap lifting instruction simulator of the present invention, it is characterized in that Angle ambiguity module comprises the first inertance element, second inertance element, 4th arithmetical operation element, 5th arithmetical operation element, second mode selection switch, the 4th proportioning element, the 4th this schmitt trigger and the 5th this schmitt trigger; Trigger Angle signal, by the first inertance element and the 4th arithmetical operation element, is connected to an input end of the second mode selection switch; Extinguish angle signal, by the second inertance element and the 5th arithmetical operation element, is connected to another input end of the second mode selection switch; Rectification state signal is connected to the control input end of the second mode selection switch; The output terminal of the second mode selection switch, successively by the 4th proportioning element and the 4th this schmitt trigger, is connected to the angle rising signals end of Angle ambiguity module; The output terminal of the second mode selection switch, by the 5th this schmitt trigger, is connected to the angle dropping signal end of Angle ambiguity module.
The invention has the beneficial effects as follows:
1. the tap joint position running status of DC control protective device can be simulated, be reflected to tap of the present invention lifting instruction simulator truly, for the research of DC control protective device or design provide corresponding simulation result;
2. tap lifting instruction simulator of the present invention has the advantage of cross-platform emulation testing, both can realize with actual components in true environment, and can realize again in virtual environment with computer software;
Accompanying drawing explanation
Fig. 1 is the theory diagram of the simulator for DC control and protection system;
Fig. 2 is the main circuit schematic diagram of tap of the present invention lifting instruction simulator;
Fig. 3 is the voltage control module schematic diagram of tap of the present invention lifting instruction simulator;
Fig. 4 is the Angle ambiguity module principle figure of tap of the present invention lifting instruction simulator.
The label of each parts in above figure: 100-high-voltage direct-current transmission system; 110-alternating current filter switching device; 120-converter power transformer; 130-thyristor converter device; 200-control module; 210-angle, current/voltage reference value calculation element; 220-transverter trigger angle control device; 230-trigger pulse generation device, 240-change of current variation apparatus for controlling connection, 250-pole output control device; 260-overload control apparatus; 270-Reactive Power Control device, 300-DC system protection unit, 900-runs and controls workstation.2410-tap rising signals module, 2420-tap dropping signal module, 2430-voltage control module, 2440-Angle ambiguity module, 2411 ~ 2414-first to fourth proportioning element, 2415-first signed magnitude arithmetic(al) device, 2216-second signed magnitude arithmetic(al) device, 2421 ~ 2425-first is to the 5th arithmetical operation element, 2431 ~ 2435-first is to the 5th this schmitt trigger, 2441 ~ 2443-first is to the 3rd and door, 2444-phase inverter, 2445-or door, 2451-first timer, 2452-second timer, 2453-first mode selector switch, 2454-second mode selection switch, 2461-first inertance element, 2462-second inertance element, INC_TC-tap rising signals end, DEC_TC-tap dropping signal end, INCVOLT-voltage rise signal end, DECVOLT-voltage reduction signal end, INCANGLE-angle rising signals end, DECANGLE-angle dropping signal end, IDNC_100 neutral current signal, RECT-rectification state signal.
Embodiment
In order to technique scheme of the present invention can be understood better, be explained in further detail below in conjunction with drawings and Examples.
Fig. 2 illustrates an embodiment of tap of the present invention lifting instruction simulator, is connected in the change of current variation apparatus for controlling connection 240 of DC control and protection system, for the emulation of the DC control and protection system of high-voltage direct-current transmission system.Tap lifting instruction simulator of the present invention is one of basic functional units of the change of current variation apparatus for controlling connection 240 of DC control and protection system.The simulator of the DC control and protection system of high-voltage direct-current transmission system as shown in Figure 1.Converter power transformer tap changer control device 240 is for automatically adjusting a link of converter power transformer 120 on-load voltage regulation tap joint position in DC power transmission control system, its objective is that the pass angle of rupture (extinguish angle) of Trigger Angle in order to maintain rectifier or inverter side is in the scope of specifying, or maintain DC voltage or valve winding in converter transformer no-load voltage in the scope of specifying.
As shown in Figure 2, tap lifting instruction simulator of the present invention comprises the first proportioning element 2411, second proportioning element 2412, first arithmetical operation element 2421, second arithmetical operation element 2422, first signed magnitude arithmetic(al) device 2415, second signed magnitude arithmetic(al) device 2216, tap rising signals module 2410, tap dropping signal module 2420, voltage control module 2430 and Angle ambiguity module 2440;
Neutral current signal IDNC_100, respectively by the first proportioning element 2411 and the second proportioning element 2412, is connected to the first arithmetical operation element 2421 and the second arithmetical operation element 2422;
The output terminal of the first arithmetical operation element 2421, by the first signed magnitude arithmetic(al) device 2415, is connected to the current signal input end of tap rising signals module 2410; The voltage rise signal end INCVOLT of voltage control module 2430, is connected to the voltage signal inputs of tap rising signals module 2410; The angle rising signals end INCANGLE of Angle ambiguity module 2440, is connected to the angle signal input end of tap rising signals module 2410; The output terminal of tap rising signals module 2410, forms the tap rising signals end INC_TC of tap of the present invention lifting instruction simulator;
The output terminal of the second arithmetical operation element 2422, by the second signed magnitude arithmetic(al) device 2416, is connected to the current signal input end of tap dropping signal module 2420; The voltage reduction signal end DECVOLT of voltage control module 2430, is connected to the voltage signal inputs of tap dropping signal module 2420; The angle dropping signal end DECANGLE of Angle ambiguity module 2440, is connected to the angle signal input end of tap dropping signal module 2420; The output terminal of tap dropping signal module 2420, forms the tap dropping signal end DEC_TC of tap of the present invention lifting instruction simulator.
The embodiment of the tap lifting instruction simulator of the present invention according to Fig. 2, tap rising signals module 2410 and tap dropping signal module 2420 are tap signaling modules that two block structures are identical, as shown in the dotted line frame region of two in Fig. 2; Described tap signaling module comprises first this schmitt trigger 2431, phase inverter 2444, the first and door 2441 to the 3rd with door 2441 ~ 2443, or door 2445, first timer 2451, second timer 2452 and first mode selector switch 2453; The current signal input end of described tap signaling module, by first this schmitt trigger 2431, is connected to the first input end of first and door 2441; The voltage signal inputs of described tap signaling module, is connected to the second input end of first and door 2441; Rectification state signal RECT is connected to the first input end of second and door 2442, and is connected to the 3rd input end of first and door 2441 by phase inverter 2444; The angle signal input end of described tap signaling module, is connected to the second input end of second and door 2442; First with door 2441 and second and the output terminal of door 2442, be connected respectively to or an input end of door 2445; Or the output terminal of door 2445, successively by first mode selector switch the 2453, three and door 2443 and second timer 2452, be connected to the output terminal of described tap signaling module.
An embodiment of the voltage control module 2430 of tap lifting instruction simulator of the present invention as shown in Figure 3, comprises the 3rd this schmitt trigger 2432 of arithmetic arithmetic element the 2423, three proportioning element 2413, second and the 3rd this schmitt trigger 2433; D. c. voltage signal is connected to the input end of the 3rd arithmetic arithmetic element 2423; The output terminal of the 3rd arithmetic arithmetic element 2423, successively by the 3rd proportioning element 2413 and second this schmitt trigger 2432, is connected to the voltage rise signal end INCVOLT of voltage control module 2430; The output terminal of the 3rd arithmetic arithmetic element 2423, by the 3rd this schmitt trigger 2433; Be connected to the voltage reduction signal end DECVOLT of voltage control module 2430.
An embodiment of the Angle ambiguity module 2440 of tap lifting instruction simulator of the present invention as shown in Figure 4, comprise the first inertance element 2461, second inertance element 2462,4th arithmetical operation element 2424,5th arithmetical operation element 2425, second this schmitt trigger 2434 of mode selection switch the 2454, four proportioning element the 2414, four and the 5th this schmitt trigger 2435; Trigger Angle signal, by the first inertance element 2461 and the 4th arithmetical operation element 2424, is connected to an input end of the second mode selection switch 2454; Extinguish angle signal, by the second inertance element 2462 and the 5th arithmetical operation element 2425, is connected to another input end of the second mode selection switch 2454; Rectification state signal RECT is connected to the control input end of the second mode selection switch 2454; The output terminal of the second mode selection switch 2454, successively by the 4th proportioning element 2414 and the 4th this schmitt trigger 2434, is connected to the angle rising signals end INCANGLE of Angle ambiguity module 2440; The output terminal of the second mode selection switch 2454, by the 5th this schmitt trigger 2435, is connected to the angle dropping signal end DECANGLE of Angle ambiguity module 2440.
Those of ordinary skill in the art will be appreciated that; above embodiment is only used to technical scheme of the present invention is described; and be not used as limitation of the invention; any the above embodiment is done based on connotation of the present invention change, modification, all will drop in the protection domain of claim of the present invention.
Claims (4)
1. a tap lifting instruction simulator, is arranged in the change of current variation apparatus for controlling connection of DC control and protection system, for the emulation of the DC control and protection system of high-voltage direct-current transmission system, it is characterized in that:
Described tap lifting instruction simulator comprises the first proportioning element, second proportioning element, first arithmetical operation element, second arithmetical operation element, first signed magnitude arithmetic(al) device, the second signed magnitude arithmetic(al) device, tap rising signals module, tap dropping signal module, voltage control module and Angle ambiguity module;
Neutral current signal, respectively by the first described proportioning element and the second proportioning element, is connected to the first described arithmetical operation element and the second arithmetical operation element;
The output terminal of described first arithmetical operation element, by the first signed magnitude arithmetic(al) device, is connected to the current signal input end of described tap rising signals module; The voltage rise signal end of described voltage control module, is connected to the voltage signal inputs of tap rising signals module; The angle rising signals end of described Angle ambiguity module, is connected to the angle signal input end of tap rising signals module; The output terminal of described tap rising signals module, forms the tap rising signals end of described tap lifting instruction simulator;
The output terminal of described second arithmetical operation element, by the second signed magnitude arithmetic(al) device, is connected to the current signal input end of described tap dropping signal module; The voltage reduction signal end of described voltage control module, is connected to the voltage signal inputs of tap dropping signal module; The angle dropping signal end of described Angle ambiguity module, is connected to the angle signal input end of tap dropping signal module; The output terminal of described tap dropping signal module, forms the tap dropping signal end of described tap lifting instruction simulator.
2. tap lifting instruction simulator according to claim 1, is characterized in that described tap rising signals module and tap dropping signal module are the tap signaling modules that two block structures are identical; Described tap signaling module comprises first this schmitt trigger, phase inverter, first with Men Zhi tri-and door, or door, first timer, second timer and first mode selector switch; The current signal input end of described tap signaling module, by first this schmitt trigger, is connected to the first input end of first and door; The voltage signal inputs of described tap signaling module, is connected to the second input end of first and door; Rectification state signal is connected to the first input end of second and door, and is connected to the 3rd input end of first and door by phase inverter; The angle signal input end of described tap signaling module, is connected to the second input end of second and door; First with door and second and the output terminal of door, be connected respectively to or an input end of door; Or the output terminal of door, successively by first mode selector switch, the 3rd with door and second timer, be connected to the output terminal of described tap signaling module.
3. tap lifting instruction simulator according to claim 1, is characterized in that voltage control module comprises the 3rd arithmetic arithmetic element, the 3rd proportioning element, second this schmitt trigger and the 3rd this schmitt trigger; D. c. voltage signal is connected to the input end of the 3rd arithmetic arithmetic element; The output terminal of the 3rd arithmetic arithmetic element, successively by the 3rd proportioning element and second this schmitt trigger, is connected to the voltage rise signal end of voltage control module; The output terminal of the 3rd arithmetic arithmetic element, by the 3rd this schmitt trigger; Be connected to the voltage reduction signal end of voltage control module.
4. tap lifting instruction simulator according to claim 1, it is characterized in that Angle ambiguity module comprises the first inertance element, second inertance element, 4th arithmetical operation element, 5th arithmetical operation element, second mode selection switch, the 4th proportioning element, the 4th this schmitt trigger and the 5th this schmitt trigger; Trigger Angle signal, by the first inertance element and the 4th arithmetical operation element, is connected to an input end of the second mode selection switch; Extinguish angle signal, by the second inertance element and the 5th arithmetical operation element, is connected to another input end of the second mode selection switch; Rectification state signal is connected to the control input end of the second mode selection switch; The output terminal of the second mode selection switch, successively by the 4th proportioning element and the 4th this schmitt trigger, is connected to the angle rising signals end of Angle ambiguity module; The output terminal of the second mode selection switch, by the 5th this schmitt trigger, is connected to the angle dropping signal end of Angle ambiguity module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310109614.9A CN103257591B (en) | 2013-03-29 | 2013-03-29 | A kind of tap lifting instruction simulator |
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| CN201310109614.9A CN103257591B (en) | 2013-03-29 | 2013-03-29 | A kind of tap lifting instruction simulator |
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| CN103257591A CN103257591A (en) | 2013-08-21 |
| CN103257591B true CN103257591B (en) | 2015-11-18 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122880A (en) * | 2011-02-19 | 2011-07-13 | 中国电力科学研究院 | Method for integrating high-voltage direct current transmission engineering equipment |
| CN102427238A (en) * | 2011-10-26 | 2012-04-25 | 中国南方电网有限责任公司超高压输电公司 | Method for adjusting gear signals of tap switch during parallel running of different converter transformers |
| EP2482416A1 (en) * | 2011-01-31 | 2012-08-01 | Alstom Technology Ltd | On-load tap changer control method for a power excitation chain, related unit and power excitation chain comprising such unit |
| EP2506384A1 (en) * | 2011-03-31 | 2012-10-03 | General Electric Company | System and method for operating a tap changer |
| CN203204335U (en) * | 2013-03-29 | 2013-09-18 | 国家电网公司 | Tap joint rising and falling instruction simulation apparatus |
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2013
- 2013-03-29 CN CN201310109614.9A patent/CN103257591B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2482416A1 (en) * | 2011-01-31 | 2012-08-01 | Alstom Technology Ltd | On-load tap changer control method for a power excitation chain, related unit and power excitation chain comprising such unit |
| CN102122880A (en) * | 2011-02-19 | 2011-07-13 | 中国电力科学研究院 | Method for integrating high-voltage direct current transmission engineering equipment |
| EP2506384A1 (en) * | 2011-03-31 | 2012-10-03 | General Electric Company | System and method for operating a tap changer |
| CN102427238A (en) * | 2011-10-26 | 2012-04-25 | 中国南方电网有限责任公司超高压输电公司 | Method for adjusting gear signals of tap switch during parallel running of different converter transformers |
| CN203204335U (en) * | 2013-03-29 | 2013-09-18 | 国家电网公司 | Tap joint rising and falling instruction simulation apparatus |
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Granted publication date: 20151118 Termination date: 20160329 |