CN101533428A - Electro-magnetic transient off-line non-real time parallel simulation system and simulation method - Google Patents
Electro-magnetic transient off-line non-real time parallel simulation system and simulation method Download PDFInfo
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- CN101533428A CN101533428A CN200910135860A CN200910135860A CN101533428A CN 101533428 A CN101533428 A CN 101533428A CN 200910135860 A CN200910135860 A CN 200910135860A CN 200910135860 A CN200910135860 A CN 200910135860A CN 101533428 A CN101533428 A CN 101533428A
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Abstract
The invention provides an electro-magnetic transients off-line non-real time parallel simulation system and a simulation method. An electric system network is divided into multiple sub-networks, each sub-network composes the electro-magnetic transients simulation system respectively, each electro-magnetic transients simulation system has an access control system which processes data exchange with each transients simulation system for realizing each electro-magnetic transients simulation system off-line non-real time parallel simulation. The simulation method includes: the electro-magnetic transients simulation system processes electro-magnetic transients calculation to each sub-network, and a calculation variable of the sub-network is transmitted to other sub-network connected with the access system through the access control system for realizing off-line non-real time and simulation of the whole electro-magnetic transient simulation system. The system and the method solve problems of slow simulation speed and little simulation scale in present electro-magnetic transients simulation system, enlarge the electro-magnetic transients simulation ability, and can process electro-magnetic transients off-line non-real time and simulation of a DC power transmission system with complex control ability and AC power transmission system with large scale rapidly and greatly.
Description
Technical field
The present invention is a kind of electro-magnetic transient off-line non-real time parallel simulation system and emulation mode, say so more specifically a kind of electromagnetic transient in power system off-line non-real time parallel simulation system and emulation mode based on PSCAD/EMTDC belong to simulation capacity and the simulation scale of expanding PSCAD/EMTDC and the technological innovation that improves the electro-magnetic transient computing velocity.
Background technology
Along with the development of direct current transportation technology, complicated DC control system can't be simulated and be calculated in electromechanical transient simulation in detail, the response characteristic of simulation that electromagnetic transient simulation but can be very detailed and researching DC transmission of electricity control system.Because electro-magnetic transient not only requires the dynamic element of electric system is adopted detailed nonlinear model, also to take into account the transient state process of network, also need adopt differential equation, and present electromagnetic transient simulation instrument does not possess the ability of off-line non-real time parallel emulation, makes the simulation scale of electromagnetic transient simulation program and computing velocity be restricted.Therefore, the domestic research of once carrying out electromechanical transient and electro-magnetic transient hybrid simulation, emulation for generator in the electric system and electric electromechanics magnetic torque is finished by electromechanical transient, the emulation that has the strong nonlinearity tag system for DC transmission system or flexible transmission system etc. is finished by electro-magnetic transient, and realize the data interaction of electromechanical transient and electro-magnetic transient by interface control system, the restriction of electromagnetic transient simulation instrument on simulation scale so that weaken to a certain extent, but, for electromechanical transient and electro-magnetic transient hybrid simulation, owing to the difference of two kinds of emulation technologies in numerical computation method and calculating step-length, the error of calculation of hybrid simulation system interface control program can't be eliminated and exist accumulation all the time and amplify.Therefore, it is comparatively accurate adopting identical numerical computation method and calculating step-length to carry out system-wide electromagnetic transient simulation calculating under full electromagnetic transient simulation environment, as PSCAD/EMTDC is the exploitation of Canadian Manitoba direct current research centre, Cheng Shu electromagnetic transient simulation system in the world, but the function of parallel artificial do not possessed yet.The present invention does not possess the off-line non-real time parallel simulation capacity and makes simulation scale and the limited problem of simulation velocity propose for solving present electromagnetic transient simulation instrument.
Summary of the invention
The objective of the invention is to consider that present electromagnetic transient simulation instrument does not possess the off-line non-real time parallel simulation capacity and makes simulation scale and the limited problem of simulation velocity propose, this invention has been given full play to the advantage of electromagnetic transient simulation and has been solved the bottleneck problem of electro-magnetic transient parallel artificial.
Technical scheme of the present invention is:
At first the large-scale electrical power system of being studied is divided into a plurality of subnets, be called subnet 1, subnet 2, ... subnet N, each subnet makes up the electromagnetic transient simulation system respectively and each subnet is carried out emulation, be provided with the exchanges data that interface control system is realized each subnet between the electromagnetic transient simulation system of each subnet, make whole simulation system constitute a unified electro-magnetic transient parallel simulation system.
Electro-magnetic transient off-line non-real time parallel emulation mode of the present invention, after electric system is divided into a plurality of subnets, if on electric, be related between subnet 1 and the subnet 2, between the electromagnetic transient simulation system of subnet 1 and subnet 2, interface control system is set so, if there is not the contact on electric, so just do not place interface control system.Interface control system between subnet exchanges variablees such as the calculating step-length of connection subnet, voltage, electric current, phase angle between subnet, and the electro-magnetic transient calculating of subnet that influence immediately in the next one calculates step-length connects, realize the off-line non-real time parallel emulation of whole electric system.
Electro-magnetic transient off-line non-real time parallel simulation system of the present invention and emulation mode can accurately be carried out system-wide electromagnetic transient simulation calculating to each subnet employing of large-scale electrical power system identical numerical computation method and calculating step-length under full electromagnetic transient simulation environment, the parallel subnet that calculates and pass through the interface control system join dependency of a plurality of subnets has thoroughly solved the restriction that single electro-magnetic transient off-line nonreal time simulation instrument is subjected to system scale and simulation velocity.
Description of drawings
The schematic diagram that accompanying drawing is example for the present invention with three subnets.
Embodiment
Be divided into three subnets with large-scale electrical power system the whole network with research, be called subnet 1, subnet 2 and subnet 3 and describe the embodiment of electro-magnetic transient off-line non-real time parallel simulation system of the present invention and emulation mode for example, and subnet 1 and subnet 2, there are electrical link in subnet 1 and subnet 3, and there are not electrical link in subnet 2 and subnet 3.With research electric system be divided into three subnets after, respectively in PSCAD/EMTDC electromagnetic transient simulation system to subnet 1, subnet 2 and subnet 3 modelings, as shown in drawings, subnet 1 and subnet 2 that electrical link is arranged, being provided with one between subnet 1 and the subnet 3 communicates with the subnet with electrical link, and the interface control system of electrical variable between the transmission subnet, realize the exchange of the variable such as calculating step-length, voltage, electric current, phase angle in each subnet computation process, do not have between the subnet 2 of electrical link and the subnet 3 interface control system not to be set.
Emulation mode of the present invention is when implementing, as shown in drawings, electro-magnetic transient off-line non-real time parallel simulation system carries out electro-magnetic transient to PSCAD/EMTDC electromagnetic transient simulation system (subnet 1) and calculates, and will exchange variable 12 and pass to interface control system, be converted to exchange by interface control system and pass to PSCAD/EMTDC electromagnetic transient simulation system (subnet 2) behind the variable 21 and carry out electro-magnetic transient and calculate, the information that the exchange variable comprises comprises the required variablees of parallel simulation system such as the calculating step-length, interrupt instruction, voltage, electric current, phase angle of subnet.Working method for the interface control system between PSCAD/EMTDC electromagnetic transient simulation system (subnet 1) and PSCAD/EMTDC electromagnetic transient simulation system (subnet 3) is similar to the above.After the message exchange between each subnet, the electromagnetic transient simulation of the whole network all obtains new exchange variable when next computation period, and carries out the whole network electromagnetic transient simulation of next computation period according to this exchange variable, finishes until emulation.
Claims (2)
1, a kind of electro-magnetic transient off-line non-real time parallel simulation system and emulation mode, it is characterized in that: the network of electric system is divided into a plurality of subnets, each subnet constitutes the electromagnetic transient simulation system respectively, have between each electromagnetic transient simulation system one with other transient emulation system carry out exchanges data, realize the interface control system of whole electromagnetic transient simulation system off-line non-real time parallel emulation.
2, electro-magnetic transient off-line non-real time parallel simulation system as claimed in claim 1 and emulation mode, it is characterized in that: the electromagnetic transient simulation system carries out electro-magnetic transient respectively to each subnet and calculates, and the calculating variable of this subnet is passed to other subnets that link to each other with this interface system by interface control system, realize the off-line non-real time parallel emulation of whole electromagnetic transient simulation system.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101930487A (en) * | 2010-07-09 | 2010-12-29 | 南方电网技术研究中心 | Hybrid real-time simulation method for continuous long-time steady operation of power system |
| CN102346442A (en) * | 2011-05-12 | 2012-02-08 | 天津大学 | Method for carrying out parallel transient simulation computing on microgrid suitable for nodal analysis frameworks |
| CN102708260A (en) * | 2012-05-29 | 2012-10-03 | 清华大学 | Electromagnetic transient state simulation method and device |
| CN102782651A (en) * | 2010-03-04 | 2012-11-14 | 辛奥普希斯股份有限公司 | Mixed concurrent and serial logic simulation of hardware designs |
| CN103728933A (en) * | 2013-11-18 | 2014-04-16 | 芜湖大学科技园发展有限公司 | Smart power grid modeling and control method based on networked control system |
| CN106294901A (en) * | 2015-05-26 | 2017-01-04 | 中国电力科学研究院 | A kind of self-defined emulation mode of power system customer based on mixing variable step emulation |
| CN107123979A (en) * | 2017-05-08 | 2017-09-01 | 清华大学 | A kind of micro-grid system DC bus-bar voltage stability control processing method and processing device |
| CN107425544A (en) * | 2017-07-19 | 2017-12-01 | 南京航空航天大学 | The electro-magnetic transient stabilising arrangement and method of a kind of distributed generation system |
| CN108629136A (en) * | 2018-05-14 | 2018-10-09 | 北京理工大学 | A kind of parallel artificial and error compensating method of continuous time 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 |
| CN109802386A (en) * | 2019-03-07 | 2019-05-24 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | The full electromagnetical transient emulation method of power grid |
| CN112883592A (en) * | 2021-03-26 | 2021-06-01 | 国网黑龙江省电力有限公司电力科学研究院 | Full-electromagnetic transient modeling method for power grid |
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2009
- 2009-04-30 CN CN200910135860A patent/CN101533428A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102782651A (en) * | 2010-03-04 | 2012-11-14 | 辛奥普希斯股份有限公司 | Mixed concurrent and serial logic simulation of hardware designs |
| CN102782651B (en) * | 2010-03-04 | 2016-06-22 | 辛奥普希斯股份有限公司 | The hybrid concurrent and serial logic emulation of hardware designs |
| CN101930487A (en) * | 2010-07-09 | 2010-12-29 | 南方电网技术研究中心 | Hybrid real-time simulation method for continuous long-time steady operation of power system |
| CN102346442A (en) * | 2011-05-12 | 2012-02-08 | 天津大学 | Method for carrying out parallel transient simulation computing on microgrid suitable for nodal analysis frameworks |
| CN102346442B (en) * | 2011-05-12 | 2013-04-17 | 天津大学 | Method for carrying out parallel transient simulation computing on microgrid suitable for nodal analysis frameworks |
| CN102708260A (en) * | 2012-05-29 | 2012-10-03 | 清华大学 | Electromagnetic transient state simulation method and device |
| CN102708260B (en) * | 2012-05-29 | 2014-11-26 | 清华大学 | Electromagnetic transient state simulation method and device |
| CN103728933A (en) * | 2013-11-18 | 2014-04-16 | 芜湖大学科技园发展有限公司 | Smart power grid modeling and control method based on networked control system |
| CN106294901A (en) * | 2015-05-26 | 2017-01-04 | 中国电力科学研究院 | A kind of self-defined emulation mode of power system customer based on mixing variable step emulation |
| CN106294901B (en) * | 2015-05-26 | 2019-10-15 | 中国电力科学研究院 | A kind of customized emulation mode of power system customer based on mixing variable step emulation |
| CN107123979B (en) * | 2017-05-08 | 2019-08-09 | 清华大学 | A kind of micro-grid system DC bus-bar voltage stability control processing method and processing device |
| CN107123979A (en) * | 2017-05-08 | 2017-09-01 | 清华大学 | A kind of micro-grid system DC bus-bar voltage stability control processing method and processing device |
| CN107425544A (en) * | 2017-07-19 | 2017-12-01 | 南京航空航天大学 | The electro-magnetic transient stabilising arrangement and method of a kind of distributed generation system |
| CN107425544B (en) * | 2017-07-19 | 2019-08-13 | 南京航空航天大学 | A kind of the electro-magnetic transient stabilising arrangement and method of distributed generation 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 |
| CN108646587B (en) * | 2018-04-18 | 2021-08-17 | 许继电气股份有限公司 | EMTDC parallel simulation method and system |
| CN108629136A (en) * | 2018-05-14 | 2018-10-09 | 北京理工大学 | A kind of parallel artificial and error compensating method of continuous time system |
| CN108629136B (en) * | 2018-05-14 | 2021-07-02 | 北京理工大学 | Parallel simulation and error compensation method for continuous time system |
| CN109802386A (en) * | 2019-03-07 | 2019-05-24 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | The full electromagnetical transient emulation method of power grid |
| CN112883592A (en) * | 2021-03-26 | 2021-06-01 | 国网黑龙江省电力有限公司电力科学研究院 | Full-electromagnetic transient modeling method for power grid |
| CN112883592B (en) * | 2021-03-26 | 2023-11-14 | 国网黑龙江省电力有限公司电力科学研究院 | Full-electromagnetic transient modeling method for power grid |
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