CN203101861U - Arc extinction angle start control simulating device - Google Patents
Arc extinction angle start control simulating device Download PDFInfo
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- CN203101861U CN203101861U CN 201320153915 CN201320153915U CN203101861U CN 203101861 U CN203101861 U CN 203101861U CN 201320153915 CN201320153915 CN 201320153915 CN 201320153915 U CN201320153915 U CN 201320153915U CN 203101861 U CN203101861 U CN 203101861U
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- 238000004088 simulation Methods 0.000 abstract description 13
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- 238000013461 design Methods 0.000 abstract description 6
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Abstract
The utility model discloses an arc extinction angle start control simulating device, which belongs to the field of electrical measurement and particularly relates to an arc extinction angle start control simulating and testing device which is applied to the simulation study on a direct-current (DC) control and protection system of high-voltage DC power transmission equipment. The device comprises a first rate limiter, a first arithmetic operation element, a second arithmetic operation element, a first Schmitt trigger, a first timer, a second timer, a first inverter, a second inverter, an AND gate, an OR gate and an SR trigger, wherein the first rate limiter is connected to the first Schmitt trigger through the first and second arithmetic operation elements; the first Schmitt trigger is connected to the AND gate through the first timer, and the AND gate is connected to an S input terminal of the SR trigger; and the first Schmitt trigger is connected to the OR gate through the second inverter and the second timer, and the OR gate is connected to an R input terminal of the SR trigger. The device can truly simulate and reflect the operating status of a DC control and protection device so as to supply corresponding simulation results to the research or design of the DC control and protection device.
Description
Technical field
The utility model belongs to the electric measurement field, relates in particular to a kind of extinguish angle start-up control simulation testing device that is used for the DC control protection system simulation research of high-voltage direct-current transmission system.
Background technology
The continuous growth of electricity needs has caused transmission system to develop to the direction of long distance, high capacity and high stability.Along with the ultra-high voltage AC transmission engineering in each electrical network zone and the construction project of high voltage direct current transmission project constantly increase, 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 tangible many direct currents feed-in, electric network composition is tight, electrical distance is tightr between many ac and dc circuits, behind extra-high voltage and the UHV (ultra-high voltage) fault in ac transmission system, easily cause and comprise high voltage direct current at many interior direct currents while commutation failures, and its rejuvenation of the commutation failure of many times direct currents will produce greater impact to AC system, if the recovery policy mismate of each straight-flow system, then also might cause many direct currents that continuous commutation failure takes place simultaneously, even cause the direct current locking.Many times bipolar locking takes place in direct current simultaneously, and a large amount of trends shift or on a large scale with the initiating system stable problem.Reciprocation between this ac and dc systems brings huge challenge for the safe operation of extra-high voltage alternating current-direct current series-parallel connection receiving end electrical network.
Therefore, in the research or the design phase of high voltage direct current transmission project, must test and emulation for the stability of extra-high voltage alternating current-direct current series-parallel connection receiving end electrical network to the reciprocation between ac and dc systems, and with reference to test and simulation result, result to research or design verifies, the stability of system is assessed.China's utility model patent " a kind of many feed-ins DC transmission system real-timedigital simulation model " (utility model patent number: ZL201210532559.X Granted publication number: CN102945004A) disclose many feed-ins DC transmission system real-timedigital simulation model, it comprises the equivalent super high voltage direct current electricity transmission system of a plurality of parallel connections, 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, is used to control and protect the operation of current conversion station.By control and the protection of current conversion station control system and protection system, avoid easily causing behind the fault in ac transmission system impact that many times direct current simultaneous faultss and many times direct current faults and rejuvenation thereof produce AC system to the current conversion station operation.But this realistic model does not relate to the emulation of extinguish angle start-up control, truly the extinguish angle start-up control running status of simulated high-pressure direct current transportation DC control protection system.
The utility model content
The purpose of this utility model is that a kind of extinguish angle start-up control simulator will be provided; it can simulate the extinguish angle start-up control state of reflection D.C. high voltage transmission DC control protection system truly; for the extinguish angle start-up control research of DC control protective device or design provide corresponding simulation result, solve to the extinguish angle start-up control research of DC control protective device or design the technical matters that verification platform is provided.
The utility model solves the problems of the technologies described above the technical scheme that is adopted:
A kind of extinguish angle start-up control simulator is arranged in the transverter trigger angle control device of DC control protection system, is used for the emulation of the DC control protection system of high-voltage direct-current transmission system, it is characterized in that:
Described extinguish angle start-up control simulator comprises the first rate limiter, the first arithmetical operation element, the second arithmetical operation element, first this schmitt trigger, first timer, second timer, first phase inverter, second phase inverter, with door, or door and set-reset flip-floop;
The input end of described first rate limiter is connected to level angle reference value calculated value; The output terminal of described first rate limiter successively by the first arithmetical operation element and the second arithmetical operation element, is connected to the input end of first this schmitt trigger; The output terminal of first this schmitt trigger is connected to a input end with door by first timer, and the rectification state signal is connected to another input end with door by first phase inverter, is connected to the S input end of set-reset flip-floop with the output terminal of door;
The output terminal of first this schmitt trigger successively by second phase inverter and second timer, is connected to or an input end of door, and the rectification state signal is connected to or another input end of door, or the output terminal of door is connected to the R input end of set-reset flip-floop; The Q output terminal of set-reset flip-floop constitutes the control signal output ends of described extinguish angle start-up control simulator.
A kind of preferable technical scheme of extinguish angle start-up control simulator of the present utility model is characterized in that described extinguish angle start-up control simulator also comprises second speed limiting device, the 3rd to the 5th arithmetical operation element and second this schmitt trigger; The input end of described second speed limiting device is connected to level angle reference value calculated value; The output terminal of described second speed limiting device is connected to the inverting input of the 5th arithmetical operation element by the 4th arithmetical operation element; D. c. voltage signal is connected to the inverting input of the second arithmetical operation element and the in-phase input end of the 5th arithmetical operation element by the 3rd arithmetic arithmetic element; The output terminal of the 5th arithmetical operation element, by second this schmitt trigger, be connected to or the door the 3rd input end.
The beneficial effects of the utility model are:
1. the extinguish angle start-up control running status of DC control protective device can be simulated, be reflected to extinguish angle start-up control simulator of the present utility model truly, for the research or the design of DC control protective device provides corresponding simulation result;
2. extinguish angle start-up control simulator of the present utility model has the advantage of cross-platform emulation testing, both can realize with actual components in true environment, can realize with computer software in virtual environment again;
Description of drawings
Fig. 1 is the theory diagram that is used for the simulator of DC control protection system;
Fig. 2 is the circuit theory diagrams of extinguish angle start-up control simulator of the present utility model.
The label of each parts among the above figure: 100-high-voltage direct-current transmission system; 110-alternating current filter switching device; the 120-converter power transformer; 130-thyristor converter device; the 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-utmost point output control device; the 260-overload control apparatus; 270-Reactive Power Control device, 300-dc system protection unit, 900-operation Control work station.2211-first rate limiter, 2212-second speed limiting device, 2221～2225-, first to the 5th arithmetical operation element, 2231-first this schmitt trigger, 2232-second this schmitt trigger, 2233-SR trigger, the 2241-first timer, 2242-second timer, 2251-first phase inverter, 2252-second phase inverter, 2253-and door, 2254-or door, UD_VARC-level angle reference value calculated value, RECT-rectification state signal, the UD_LOW_I-control signal output ends.
Embodiment
In order to understand technique scheme of the present utility model better, be explained in further detail below in conjunction with drawings and Examples.
Fig. 2 has showed an embodiment of extinguish angle start-up control simulator of the present utility model, is connected in the transverter trigger angle control device of DC control protection system, is used for the emulation of the DC control protection system of high-voltage direct-current transmission system.One of basic functional units of the transverter trigger angle control device 220 that extinguish angle start-up control simulator of the present utility model is the DC control protection system.The simulator of the DC control protection system of high-voltage direct-current transmission system as shown in Figure 1.
As shown in Figure 2, extinguish angle start-up control simulator of the present utility model comprises first rate limiter 2211, the first arithmetical operation element, 2221, the second arithmetical operation elements, 2222, the first these schmitt triggers 2231, first timer 2241, second timer 2242, the first phase inverters 2251, the second phase inverters 2252, with door 2253, or door 2254 and set-reset flip-floop 2233;
The input end of first rate limiter 2211 is connected to level angle reference value calculated value; The output terminal of first rate limiter 2211 successively by the first arithmetical operation element 2221 and the second arithmetical operation element 2222, is connected to the input end of first this schmitt trigger 2231; The output terminal of first this schmitt trigger 2231, be connected to and a door input end of 2253 by first timer 2241, the rectification state signal is connected to and door another input end of 2253 by first phase inverter 2251, is connected to the S input end of set-reset flip-floop 2233 with the output terminal of door 2253.
The output terminal of first this schmitt trigger 2231, successively by second phase inverter 2252 and second timer 2242, be connected to or a door input end of 2254, the rectification state signal is connected to or door another input end of 2254, or the output terminal of door 2254 is connected to the R input end of set-reset flip-floop 2233; The Q output terminal of set-reset flip-floop 2233 constitutes the control signal output ends UD_LOW_I of extinguish angle start-up control simulator of the present utility model.
According to embodiment shown in Figure 2, extinguish angle start-up control simulator of the present utility model also comprises second speed limiting device the 2212, the three to the 5th arithmetical operation element 2223～2225, and second this schmitt trigger 2232; The input end of second speed limiting device 2212 is connected to level angle reference value calculated value; The output terminal of second speed limiting device 2212 is connected to the inverting input of the 5th arithmetical operation element 2225 by the 4th arithmetical operation element 2224; D. c. voltage signal is connected to the inverting input of the second arithmetical operation element 2222 and the in-phase input end of the 5th arithmetical operation element 2225 by the 3rd arithmetic arithmetic element 2223; The output terminal of the 5th arithmetical operation element 2225 by second this schmitt trigger 2232, is connected to or door 2254 the 3rd input end.
Those of ordinary skill in the art will be appreciated that; above embodiment is used for illustrating the technical solution of the utility model; and be not to be used as qualification of the present utility model; any based on connotation of the present utility model to variation, modification that the above embodiment did, all will drop in the protection domain of claim of the present utility model.
Claims (2)
1. an extinguish angle start-up control simulator is arranged in the transverter trigger angle control device of DC control protection system, is used for the emulation of the DC control protection system of high-voltage direct-current transmission system, it is characterized in that:
Described extinguish angle start-up control simulator comprises the first rate limiter, the first arithmetical operation element, the second arithmetical operation element, first this schmitt trigger, first timer, second timer, first phase inverter, second phase inverter, with door, or door and set-reset flip-floop;
The input end of described first rate limiter is connected to level angle reference value calculated value; The output terminal of described first rate limiter successively by the first arithmetical operation element and the second arithmetical operation element, is connected to the input end of first this schmitt trigger; The output terminal of first this schmitt trigger is connected to a input end with door by first timer, and the rectification state signal is connected to another input end with door by first phase inverter, is connected to the S input end of set-reset flip-floop with the output terminal of door;
The output terminal of first this schmitt trigger successively by second phase inverter and second timer, is connected to or an input end of door, and the rectification state signal is connected to or another input end of door, or the output terminal of door is connected to the R input end of set-reset flip-floop; The Q output terminal of set-reset flip-floop constitutes the control signal output ends of described extinguish angle start-up control simulator.
2. extinguish angle start-up control simulator according to claim 1 is characterized in that described extinguish angle start-up control simulator also comprises second speed limiting device, the 3rd to the 5th arithmetical operation element and second this schmitt trigger; The input end of described second speed limiting device is connected to level angle reference value calculated value; The output terminal of described second speed limiting device is connected to the inverting input of the 5th arithmetical operation element by the 4th arithmetical operation element; D. c. voltage signal is connected to the inverting input of the second arithmetical operation element and the in-phase input end of the 5th arithmetical operation element by the 3rd arithmetic arithmetic element; The output terminal of the 5th arithmetical operation element, by second this schmitt trigger, be connected to or the door the 3rd input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320153915 CN203101861U (en) | 2013-03-29 | 2013-03-29 | Arc extinction angle start control simulating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320153915 CN203101861U (en) | 2013-03-29 | 2013-03-29 | Arc extinction angle start control simulating device |
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| CN203101861U true CN203101861U (en) | 2013-07-31 |
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| CN 201320153915 Expired - Lifetime CN203101861U (en) | 2013-03-29 | 2013-03-29 | Arc extinction angle start control simulating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257576A (en) * | 2013-03-29 | 2013-08-21 | 国家电网公司 | Extinction angle start control simulation device |
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2013
- 2013-03-29 CN CN 201320153915 patent/CN203101861U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257576A (en) * | 2013-03-29 | 2013-08-21 | 国家电网公司 | Extinction angle start control simulation device |
| CN103257576B (en) * | 2013-03-29 | 2015-11-18 | 国家电网公司 | A kind of extinction angle start control simulation device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20151118 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |