CN103034760A - Extra-high voltage DC (Direct Current) power transmission system real-time digital simulation model - Google Patents
Extra-high voltage DC (Direct Current) power transmission system real-time digital simulation model Download PDFInfo
- Publication number
- CN103034760A CN103034760A CN2012105327970A CN201210532797A CN103034760A CN 103034760 A CN103034760 A CN 103034760A CN 2012105327970 A CN2012105327970 A CN 2012105327970A CN 201210532797 A CN201210532797 A CN 201210532797A CN 103034760 A CN103034760 A CN 103034760A
- Authority
- CN
- China
- Prior art keywords
- simulation model
- direct current
- conversion station
- real
- timedigital simulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Direct Current Feeding And Distribution (AREA)
- Inverter Devices (AREA)
Abstract
The invention relates to an extra-high voltage DC (Direct Current) power transmission system real-time digital simulation model which comprises a primary system real-time digital simulation model and a secondary system real-time digital simulation model. The primary system real-time digital simulation model comprises converter stations and a DC power transmission line; the converter stations are arranged at both ends of the DC power transmission line; the secondary system real-time digital simulation model comprises a converter station control system and a converter station protection system; and the converter station control system and the converter station protection system are connected with the converter stations and are used for controlling and protecting operation of the converter stations. By control and protection of the converter station control system and the converter station protection system on the converter stations, the condition that after an AC (Alternate Current) system goes wrong, a plurality of loops of DCs easily go wrong at the same time and a multiple-loop DC fault is easy to cause is avoided and impact on the AC system in the recovering process is also avoided.
Description
Technical field
The present invention relates to a kind of electric analog model, is a kind of super high voltage direct current electricity transmission system real-timedigital simulation model specifically.
Background technology
East China Power Grid presents obvious multi-infeed HVDC large receiving-end grid feature at present, and the East China area is narrow and small, electric network composition is tight, electrical distance is nearer between the many times direct currents, easily cause many times direct current simultaneous faultss behind the fault in ac transmission system, and the fault of many times direct currents and rejuvenation thereof will produce greater impact to AC system, and the reciprocation between this alternating current-direct current is brought huge challenge to the safe operation of receiving end electrical network.Simultaneously, along with the extra-high-voltage alternating current between each large regional grid is interconnected, East China receiving end electrical network will present again the new feature that alternating current-direct current mixes transmission of electricity, and alternating current-direct current interaction influence scope and degree further enlarge, and this problem will may be comparatively outstanding at the extra-high-voltage alternating current initial stage of networking.
For guaranteeing the safe and stable operation of East China receiving end electrical network, in the urgent need to the alternating current-direct current reciprocation is furtherd investigate, and the direct current transportation model is the basis of alternating current-direct current reciprocation research.On the basis of analyzing DC transmission system working control and operation characteristic, set up and satisfy the applicable DC transmission system model of System Safety Analysis, will be the important ingredient of large receiving-end grid security and stability analysis and control strategy thereof research.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of super high voltage direct current electricity transmission system real-timedigital simulation model, the impact that AC system is produced to avoid easily causing behind the fault in ac transmission system many times direct current simultaneous faultss and many times DC Line Faults and rejuvenation thereof.
In order to solve the problems of the technologies described above, the invention provides a kind of super high voltage direct current electricity transmission system real-timedigital simulation model, comprise 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.
In described super high voltage direct current electricity transmission system real-timedigital simulation model, be preferably, described current conversion station comprises transverter, converter power transformer, alternating current-direct current wave filter, and the output of described transverter connects converter power transformer, and the output of described converter power transformer connects the alternating current-direct current wave filter.
In described super high voltage direct current electricity transmission system real-timedigital simulation model, be preferably, described current conversion station adopts the dipolar configuration of two 12 pulses.
In described super high voltage direct current electricity transmission system real-timedigital simulation model, be preferably, described current conversion station control system comprise be connected in parallel on the bus with distant place control center interface subsystem, operator control system, alternating current-direct current station control system, dc pole control system.
In described super high voltage direct current electricity transmission system real-timedigital simulation model, be preferably, described protection system comprises DC protection system, harmonics system, the interior communication system that is connected in parallel on the bus.
Super high voltage direct current electricity transmission of the present invention system real-timedigital simulation model 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.Current conversion station control system and protection system are the cores of whole super high voltage direct current electricity transmission system real-timedigital simulation model, and its control performance will directly determine the various response characteristics of DC transmission system and the stability of power/current.By current conversion station control system and the protection system control and protection to the current conversion station operation, avoid easily causing behind the fault in ac transmission system impact that many times direct current simultaneous faultss and many times DC Line Faults and rejuvenation thereof produce AC system.
Description of drawings
Fig. 1 is the structural representation of super high voltage direct current electricity transmission of the present invention system real-timedigital simulation model.
Embodiment
Below, for a more detailed description to the present invention by reference to the accompanying drawings with embodiment.Present embodiment only is the description to best mode for carrying out the invention, scope of the present invention is not had any restriction.
Embodiment
As shown in Figure 1, described super high voltage direct current electricity transmission system real-timedigital simulation model 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 1 and DC power transmission line 2, and described current conversion station 1 is arranged on the two ends of DC power transmission line 2; 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.In the present embodiment, the rated voltage of described super high voltage direct current electricity transmission system is that 3kA, rated power are 3,000,000 kilowatts for ± 500kV, rated current, DC power transmission line is long to be 1000km, and the current conversion station at two ends is the dipolar configuration of two 12 pulses, and configuration alternating current-direct current bank of filters.The alternating-current field of current conversion station adopts 3/2 wiring, and dc fields is divided positive and negative the two poles of the earth.
Preferably, described current conversion station comprises transverter, converter power transformer, alternating current-direct current wave filter, and the output of described transverter connects converter power transformer, and the output of described converter power transformer connects the alternating current-direct current wave filter.Described current conversion station control system comprise be connected in parallel on the bus with distant place control center interface subsystem, operator control system, alternating current-direct current station control system, dc pole control system.Described dc pole control system is the core of current conversion station control system, and it has determined the operation characteristic of DC transmission system.Described dc pole control system comprises that utmost point power control/Current Control PPC, overload restriction OLL, DC power modulation MODS, transverter trigger control CFC, gating pulse generating unit CPG, the level angle reference value is calculated VARC, Reactive Power Control RPC, change of current variation joint control TCC, switching sequence control SSQ, mode sequence control MSQ, prepared communication TCOM between sequential control RSQ, circuit open-circuit test control OLT and station.
Preferably, described protection system comprises DC protection system, harmonics system, the interior communication system that is connected in parallel on the bus.Certainly, described protection system can also comprise commutation failure protection; the transverter differential protection; the protection of converter transformer valve side connecting line; the AC overvoltage protection; exchange under-voltage protection; utmost point bus differential protecting; the moving protection of extreme difference; neutral line differential protection; the traveling-wave protection of single breaker protection circuit; the protection of line voltage distribution Sudden Changing Rate; the circuit under-voltage protection; line differential protection; circuit is restarted protection; the alternating current-direct current short is reported to the police; the metallic return differential protection; the metallic return transverse differential protection; DC overvoltage protection; in the safeguard measures such as DC minimum voltage protection one or more.
Super high voltage direct current electricity transmission of the present invention system real-timedigital simulation model 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.Current conversion station control system and protection system are the cores of whole super high voltage direct current electricity transmission system real-timedigital simulation model, and its control performance will directly determine the various response characteristics of DC transmission system and the stability of power/current.By current conversion station control system and the protection system control and protection to the current conversion station operation, avoid easily causing behind the fault in ac transmission system impact that many times direct current simultaneous faultss and many times DC Line Faults and rejuvenation thereof produce AC system.
Claims (5)
1. a super high voltage direct current electricity transmission system real-timedigital simulation model is characterized in that: comprise 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.
2. super high voltage direct current electricity transmission according to claim 1 system real-timedigital simulation model, it is characterized in that: current conversion station comprises transverter, converter power transformer, alternating current-direct current wave filter, the output of described transverter connects converter power transformer, and the output of described converter power transformer connects the alternating current-direct current wave filter.
3. super high voltage direct current electricity transmission according to claim 1 system real-timedigital simulation model, it is characterized in that: described current conversion station adopts the dipolar configuration of two 12 pulses.
4. each described super high voltage direct current electricity transmission system real-timedigital simulation model in 3 according to claim 1 is characterized in that: described current conversion station control system comprise be connected in parallel on the bus with distant place control center interface subsystem, operator control system, alternating current-direct current station control system, dc pole control system.
5. super high voltage direct current electricity transmission according to claim 4 system real-timedigital simulation model, it is characterized in that: described protection system comprises DC protection system, harmonics system, the interior communication system that is connected in parallel on the bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105327970A CN103034760A (en) | 2012-12-11 | 2012-12-11 | Extra-high voltage DC (Direct Current) power transmission system real-time digital simulation model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105327970A CN103034760A (en) | 2012-12-11 | 2012-12-11 | Extra-high voltage DC (Direct Current) power transmission system real-time digital simulation model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103034760A true CN103034760A (en) | 2013-04-10 |
Family
ID=48021652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105327970A Pending CN103034760A (en) | 2012-12-11 | 2012-12-11 | Extra-high voltage DC (Direct Current) power transmission system real-time digital simulation model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103034760A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929088A (en) * | 2014-04-18 | 2014-07-16 | 华北电力大学 | Average value model of MMC |
| CN105182797A (en) * | 2015-09-02 | 2015-12-23 | 国网上海市电力公司 | RTDS-based DC power transmission simulation modeling method and simulation system |
| CN108646587A (en) * | 2018-04-18 | 2018-10-12 | 许继电气股份有限公司 | A kind of EMTDC parallel simulation methods and system |
| CN110163521A (en) * | 2019-05-29 | 2019-08-23 | 国网江苏省电力有限公司 | The analogue system that UHVDC converter station actual situation combines |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1505756A (en) * | 1974-07-19 | 1978-03-30 | Asea Ab | High-voltage direct current transmission system |
| US4264951A (en) * | 1978-06-14 | 1981-04-28 | Hitachi, Ltd. | DC Power transmission control |
| KR20030072150A (en) * | 2002-03-05 | 2003-09-13 | 주식회사 시스하이텍 | Test system and method of a power supply |
| CN101572408A (en) * | 2009-03-18 | 2009-11-04 | 华北电力大学 | Method for improving simulation capacity of HVDC transmission system |
| CN102751720A (en) * | 2012-04-11 | 2012-10-24 | 中国电力科学研究院 | Flexible high-voltage direct-current (HVDC) load flow computational model and computational method thereof |
-
2012
- 2012-12-11 CN CN2012105327970A patent/CN103034760A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1505756A (en) * | 1974-07-19 | 1978-03-30 | Asea Ab | High-voltage direct current transmission system |
| US4264951A (en) * | 1978-06-14 | 1981-04-28 | Hitachi, Ltd. | DC Power transmission control |
| KR20030072150A (en) * | 2002-03-05 | 2003-09-13 | 주식회사 시스하이텍 | Test system and method of a power supply |
| CN101572408A (en) * | 2009-03-18 | 2009-11-04 | 华北电力大学 | Method for improving simulation capacity of HVDC transmission system |
| CN102751720A (en) * | 2012-04-11 | 2012-10-24 | 中国电力科学研究院 | Flexible high-voltage direct-current (HVDC) load flow computational model and computational method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 王晓辉 等: "特高压直流接入对华东受端交流系统稳定性影响的研究", 《华东电力》 * |
| 赵畹君: "《高压直流输电工程技术》", 31 August 2004 * |
| 陶瑜 等: "高压直流输电控制保护技术发展的探讨", 《电力建设》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929088A (en) * | 2014-04-18 | 2014-07-16 | 华北电力大学 | Average value model of MMC |
| CN103929088B (en) * | 2014-04-18 | 2017-01-04 | 华北电力大学 | A kind of mean value model of modularization multi-level converter |
| CN105182797A (en) * | 2015-09-02 | 2015-12-23 | 国网上海市电力公司 | RTDS-based DC power transmission simulation modeling method and simulation system |
| CN108646587A (en) * | 2018-04-18 | 2018-10-12 | 许继电气股份有限公司 | A kind of EMTDC parallel simulation methods and system |
| CN110163521A (en) * | 2019-05-29 | 2019-08-23 | 国网江苏省电力有限公司 | The analogue system that UHVDC converter station actual situation combines |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102945004A (en) | Real-time digital simulation model for multi-infeed direct current power transmission system | |
| CN101304170B (en) | System debug method for high voltage direct current transmission project | |
| CN103268117B (en) | MMC flexible direct-current control device testing system and method based on RTDS | |
| CN105743113B (en) | A kind of determination method of Multi-infeed HVDC transmission system harmonic instability | |
| CN103887810A (en) | Method for judging whether continuous phase changing of direct-current system fails on basis of short-circuit ratio dynamic tracking | |
| Byeon et al. | A research on the characteristics of fault current of DC distribution system and AC distribution system | |
| CN103606911A (en) | Method for removing instantaneous short circuit earth faults of direct current line of flexible direct current power transmission system | |
| Emhemed et al. | The effectiveness of using IEC61660 for characterising short-circuit currents of future low voltage DC distribution networks | |
| CN109449965B (en) | Method and system for calculating critical multi-feed-in interaction factor of direct current change | |
| CN202535052U (en) | Neutral point grounding system via combination of reactance and resistor | |
| CN103034760A (en) | Extra-high voltage DC (Direct Current) power transmission system real-time digital simulation model | |
| CN103760893A (en) | Closed-loop testing system and method for frequency adaptability of alternating-current control protective device | |
| CN103552488A (en) | Bilateral power supply system for electrified railway | |
| CN104617583A (en) | Mixed railway power quality control system based on multifunctional balanced transformer | |
| Qi et al. | Design issues and practical application challenges of DC shipboard distribuiton system protection | |
| CN203014389U (en) | High-voltage reactive power automatic compensation device | |
| CN104796025A (en) | Sub-module topological structure of modular multilevel converter | |
| CN106356905A (en) | Alternating-current and direct-current double-bus controllable power transmission system | |
| CN104408219A (en) | Direct current power transmission engineering fault circuit automatic generating method | |
| CN203287500U (en) | Low voltage ride-through test platform based on parallelly-connected current transformers and voltage-dividing reactors | |
| CN102542355A (en) | Operation planning part load method | |
| CN104471815A (en) | Bipolar high/low voltage converter station for series mtdc system | |
| CN110492516B (en) | Extra-high voltage multi-terminal flexible direct current transmission converter station system and control method thereof | |
| CN105186550A (en) | Improved modularized multi-level converter submodule topology | |
| CN104319734A (en) | Large difference protection method based on second harmonic excitation surge current of converter transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130410 |