CN103257589A - Voltage regulator simulator - Google Patents
Voltage regulator simulator Download PDFInfo
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- CN103257589A CN103257589A CN2013101092379A CN201310109237A CN103257589A CN 103257589 A CN103257589 A CN 103257589A CN 2013101092379 A CN2013101092379 A CN 2013101092379A CN 201310109237 A CN201310109237 A CN 201310109237A CN 103257589 A CN103257589 A CN 103257589A
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Abstract
The invention provides a voltage regulator simulator, belongs to the field of electrical measurements, and particularly relates to a voltage regulator simulating testing device used in the direct current control and protection system simulation study of direct current high-voltage transmission equipment. Direct current voltage signals are connected to a second arithmetic operation element through a first arithmetic operation element and an absolute value arithmetic device, the second arithmetic operation element is connected to a first mode selective switch and a first proportional component through an inertia element, the first mode selective switch is connected to an integrator and is connected to a first speed limiting device through a second proportional component, an output end of a bound regulation module is connected to a bound regulation input end of the integrator, an output end of the first speed limiting device and an output end of the integrator are connected to a second speed limiting device through a third arithmetic operation element, and a voltage regulation signal output end is formed. By means of the voltage regulator simulator, the operating state of a direct current control and protection device can be simulated and reflected truly, and corresponding simulation results are supplied to the study or design of the direct current control and protection device.
Description
Technical field
The invention belongs to the electric measurement field, relate in particular to a kind of voltage regulator simulation testing device of the DC control protection system simulation research for high-voltage direct-current transmission system.
Background technology
The continuous growth of electricity needs has caused transmission system to develop to the direction of growing distance, big 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 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 for the operation of control and protection current conversion station.By control and the protection to the current conversion station operation 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.But this realistic model does not relate to the emulation of voltage regulator, truly the voltage regulator running status of simulated high-pressure direct current transportation DC control protection system.
Summary of the invention
The objective of the invention is to provide a kind of voltage regulator simulator; it can simulate the state of voltage regulator of reflection D.C. high voltage transmission DC control protection system truly; for the research of the voltage regulator of DC control protective device or design provide corresponding simulation result, solve the technical matters that voltage regulator research or design for the DC control protective device provide verification platform.
The present invention solves the problems of the technologies described above the technical scheme that adopts:
A kind of voltage regulator 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 voltage regulator simulator comprises first to the 3rd arithmetic arithmetic element, signed magnitude arithmetic(al) device, inertance element, first proportioning element, first mode selection switch, second proportioning element, integrator, first rate limiter, second speed limiting device and bound adjustment module; D. c. voltage signal is connected to the described second arithmetical operation element successively by the described first arithmetical operation element and signed magnitude arithmetic(al) device; The output terminal of the described second arithmetical operation element, be connected to the input end of described inertance element, the output terminal of described inertance element, be connected to an input end of described first mode selection switch, and by described first proportioning element, be connected to another input end of described first mode selection switch; The output terminal of described first mode selection switch is connected to the input end of described integrator, and by described second proportioning element, is connected to the input end of first rate limiter; The output terminal of described bound adjustment module, the bound that is connected to described integrator is regulated input end; The output terminal of described first rate limiter and the output terminal of described integrator by described the 3rd arithmetic arithmetic element, are connected to the input end of described second speed limiting device; The output terminal of described second speed limiting device constitutes the regulated voltage signal output terminal of described voltage regulator simulator.
A kind of preferable technical scheme of voltage regulator simulator of the present invention, it is characterized in that described bound adjustment module comprises first to fourth extreme value selector switch, the the 4th to the 8th arithmetical operation element, the third speed limiter, the trigonometric function element, second mode selection switch and three-mode selector switch; The tap control signal of DC voltage and angle reference value and converter power transformer by secondary extremal selector switch and the 4th arithmetical operation element, is connected to the input end of described the 5th arithmetical operation element; The output terminal of described the 5th arithmetical operation element by described third speed limiter, is connected to the input end of described trigonometric function element; The output terminal of described trigonometric function element by described the 6th arithmetical operation element and the first extreme value selector switch, is connected to described second mode selection switch; The output terminal of described second mode selection switch, by the 7th arithmetical operation element, the upper limit that is connected to described integrator is regulated input end; The output terminal of described trigonometric function element by described the 3rd extreme value selector switch, is connected to described three-mode selector switch; The output terminal of described three-mode selector switch, successively by described the 8th arithmetical operation element and the 4th extreme value selector switch, the lower limit that is connected to described integrator is regulated input end.
The invention has the beneficial effects as follows:
1. the voltage regulator running status of DC control protective device can be simulated, be reflected to voltage regulator simulator of the present invention truly, for research or the design of DC control protective device provides corresponding simulation result;
2. voltage regulator simulator of the present invention 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 for the simulator of DC control protection system;
Fig. 2 is the circuit theory diagrams of voltage regulator simulator of the present invention.
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 workstation.2210-bound adjustment module, 2211～2218-, first to the 8th arithmetical operation element, 2221-signed magnitude arithmetic(al) device, 2222-first proportioning element, 2223-second proportioning element, 2224-trigonometric function element, the 2231-inertance element, the 2232-integrator, 2241～2243-first is to the three-mode selector switch, and 2251～2253-first is to the third speed limiter, 2261～2264-, first to fourth extreme value selector switch, the maximum angle signal that triggers of ALPHA_MAX-inverter, TC_SCALED-tap control signal, UD_VARC-DC voltage and angle reference value, OVL_ORD-overvoltage Limiting signal output part, RECT-rectification state signal, VCA_ORD-regulated voltage signal output terminal.
Embodiment
In order to understand technique scheme of the present invention better, be explained in further detail below in conjunction with drawings and Examples.
Fig. 2 has showed an embodiment of voltage regulator simulator of the present invention, 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 voltage regulator simulator of the present invention 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, voltage regulator simulator of the present invention comprises first to the 3rd arithmetic arithmetic element 2211～2213, signed magnitude arithmetic(al) device 2221, inertance element 2231, the first proportioning elements 2222, the first mode selection switchs 2241, second proportioning element 2223, integrator 2232, first rate limiter 2251, the second speed limiting devices 2252 and bound adjustment module 2210; D. c. voltage signal by the first arithmetical operation element 2211 and signed magnitude arithmetic(al) device 2221, is connected to the second arithmetical operation element 2212 successively; The output terminal of the second arithmetical operation element 2212, be connected to the input end of inertance element 2231, the output terminal of inertance element 2231, be connected to an input end of first mode selection switch 2241, and by first proportioning element 2222, be connected to another input end of first mode selection switch 2241; The output terminal of first mode selection switch 2241 is connected to the input end of integrator 2232, and by second proportioning element 2223, is connected to the input end of first rate limiter 2251; The output terminal of bound adjustment module 2210, the bound that is connected to integrator 2232 is regulated input end; The output terminal of the output terminal of first rate limiter 2251 and integrator 2232 by the 3rd arithmetic arithmetic element 2213, is connected to the input end of second speed limiting device 2252; The output terminal of second speed limiting device 2252, the regulated voltage signal output terminal VCA_ORD of formation voltage regulator simulator.
Embodiment according to voltage regulator simulator of the present invention shown in Figure 2, bound adjustment module 2210 is shown in the frame of broken lines zone among Fig. 2, comprise first to fourth extreme value selector switch 2261～2264, the the 4th to the 8th arithmetical operation element 2214～2218, third speed limiter 2253, trigonometric function element 2224, the second mode selection switch 2242 and three-mode selector switch 2243; The tap control signal TC_SCALED of DC voltage and angle reference value UD_VARC and converter power transformer by secondary extremal selector switch 2262 and the 4th arithmetical operation element 2214, is connected to the input end of the 5th arithmetical operation element 2215; The output terminal of the 5th arithmetical operation element 2215 by third speed limiter 2253, is connected to the input end of trigonometric function element 2224; The output terminal of trigonometric function element 2224 by the 6th arithmetical operation element 2216 and the first extreme value selector switch 2261, is connected to second mode selection switch 2242; The output terminal of second mode selection switch 2242, by the 7th arithmetical operation element 2217, the upper limit that is connected to integrator 2232 is regulated input end; The output terminal of trigonometric function element 2224 by the 3rd extreme value selector switch 2263, is connected to three-mode selector switch 2243; The output terminal of three-mode selector switch 2243, successively by the 8th arithmetical operation element 2218 and the 4th extreme value selector switch 2264, the lower limit that is connected to integrator 2232 is regulated input end.
Those of ordinary skill in the art will be appreciated that; above embodiment illustrates technical scheme of the present invention; and be not to be used as limitation of the invention; any variation, modification of the above embodiment being done based on connotation of the present invention all will drop in the protection domain of claim of the present invention.
Claims (2)
1. a voltage regulator 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 voltage regulator simulator comprises first to the 3rd arithmetic arithmetic element, signed magnitude arithmetic(al) device, inertance element, first proportioning element, first mode selection switch, second proportioning element, integrator, first rate limiter, second speed limiting device and bound adjustment module; D. c. voltage signal is connected to the described second arithmetical operation element successively by the described first arithmetical operation element and signed magnitude arithmetic(al) device; The output terminal of the described second arithmetical operation element, be connected to the input end of described inertance element, the output terminal of described inertance element, be connected to an input end of described first mode selection switch, and by described first proportioning element, be connected to another input end of described first mode selection switch; The output terminal of described first mode selection switch is connected to the input end of described integrator, and by described second proportioning element, is connected to the input end of first rate limiter; The output terminal of described bound adjustment module, the bound that is connected to described integrator is regulated input end; The output terminal of described first rate limiter and the output terminal of described integrator by described the 3rd arithmetic arithmetic element, are connected to the input end of described second speed limiting device; The output terminal of described second speed limiting device constitutes the regulated voltage signal output terminal of described voltage regulator simulator.
2. voltage regulator simulator according to claim 1, it is characterized in that described bound adjustment module comprises first to fourth extreme value selector switch, the the 4th to the 8th arithmetical operation element, the third speed limiter, the trigonometric function element, second mode selection switch and three-mode selector switch; The tap control signal of DC voltage and angle reference value and converter power transformer by secondary extremal selector switch and the 4th arithmetical operation element, is connected to the input end of described the 5th arithmetical operation element; The output terminal of described the 5th arithmetical operation element by described third speed limiter, is connected to the input end of described trigonometric function element; The output terminal of described trigonometric function element by described the 6th arithmetical operation element and the first extreme value selector switch, is connected to described second mode selection switch; The output terminal of described second mode selection switch, by the 7th arithmetical operation element, the upper limit that is connected to described integrator is regulated input end; The output terminal of described trigonometric function element by described the 3rd extreme value selector switch, is connected to described three-mode selector switch; The output terminal of described three-mode selector switch, successively by described the 8th arithmetical operation element and the 4th extreme value selector switch, the lower limit that is connected to described integrator is regulated input end.
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| CN201310109237.9A CN103257589B (en) | 2013-03-29 | 2013-03-29 | A kind of voltage regulator simulator |
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| CN201310109237.9A CN103257589B (en) | 2013-03-29 | 2013-03-29 | A kind of voltage regulator simulator |
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| CN103257589B CN103257589B (en) | 2015-12-23 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4578743A (en) * | 1983-06-21 | 1986-03-25 | Kabushiki Kaisha Toshiba | Converter control system having stable power transfer in the presence of decreased input AC voltage |
| JPH05211779A (en) * | 1992-01-30 | 1993-08-20 | Hitachi Ltd | Controller for dc power transmission device |
| US20040130302A1 (en) * | 2003-01-03 | 2004-07-08 | Predrag Ostojic | Programmable multiple output dc-dc isolated power supply |
| CN101281463A (en) * | 2007-12-24 | 2008-10-08 | 国网直流工程建设有限公司 | High voltage direct current transmission, extra-high voltage direct current transmission general-purpose control model developing method |
| CN102163842A (en) * | 2011-03-11 | 2011-08-24 | 国家电网公司直流建设分公司 | Method for switching control modes of parallel-connection type multi-terminal direct current power transmission system |
| CN102945004A (en) * | 2012-12-11 | 2013-02-27 | 上海市电力公司 | Real-time digital simulation model for multi-infeed direct current power transmission system |
| CN203133512U (en) * | 2013-03-29 | 2013-08-14 | 国家电网公司 | Simulation device for voltage regulator |
-
2013
- 2013-03-29 CN CN201310109237.9A patent/CN103257589B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4578743A (en) * | 1983-06-21 | 1986-03-25 | Kabushiki Kaisha Toshiba | Converter control system having stable power transfer in the presence of decreased input AC voltage |
| JPH05211779A (en) * | 1992-01-30 | 1993-08-20 | Hitachi Ltd | Controller for dc power transmission device |
| US20040130302A1 (en) * | 2003-01-03 | 2004-07-08 | Predrag Ostojic | Programmable multiple output dc-dc isolated power supply |
| CN101281463A (en) * | 2007-12-24 | 2008-10-08 | 国网直流工程建设有限公司 | High voltage direct current transmission, extra-high voltage direct current transmission general-purpose control model developing method |
| CN102163842A (en) * | 2011-03-11 | 2011-08-24 | 国家电网公司直流建设分公司 | Method for switching control modes of parallel-connection type multi-terminal direct current power transmission system |
| CN102945004A (en) * | 2012-12-11 | 2013-02-27 | 上海市电力公司 | Real-time digital simulation model for multi-infeed direct current power transmission system |
| CN203133512U (en) * | 2013-03-29 | 2013-08-14 | 国家电网公司 | Simulation device for voltage regulator |
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