CN106970537A - Electric power and communication semi-matter simulating system and construction method based on RTDS and SDH - Google Patents
Electric power and communication semi-matter simulating system and construction method based on RTDS and SDH Download PDFInfo
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- CN106970537A CN106970537A CN201710303295.3A CN201710303295A CN106970537A CN 106970537 A CN106970537 A CN 106970537A CN 201710303295 A CN201710303295 A CN 201710303295A CN 106970537 A CN106970537 A CN 106970537A
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B17/00—Systems involving the use of models or simulators of said systems
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Abstract
The invention discloses the electric power based on RTDS and SDH and communication semi-matter simulating system and construction method, belong to Simulating technique in Electric Power System field.The present invention includes electric power hardware-in-the-loop environment and communication hardware-in-the-loop environment, the electric power hardware-in-the-loop environment emulates end by RTDS real-time electric powers and second power equipment is constituted, the communication hardware-in-the-loop environment is made up of SDH networks in kind and communication simulation end, SDH networks in kind include the auxiliary device of SDH equipment, optical fiber and correlation, RTDS real-time electric powers emulation end is connected with second power equipment, communication simulation end is connected with SDH networks in kind and second power equipment respectively by protocol converter, and second power equipment is connected with SDH networks in kind；RTDS real-time electric powers emulation end, second power equipment and communication simulation end are by during gps clock school and synchronization.The present invention can effectively emulate the electric power and communication system of close coupling, while also providing an effective checksum test platform for second power equipment and corresponding communication interface.
Description
Technical field
The invention belongs to Simulating technique in Electric Power System field, more precisely, RTDS and SDH is based on the present invention relates to one kind
Electric power and communication semi-matter simulating system and construction method.
Background technology
Power system is one of mostly important national basis facility, and its safe and stable operation is related to each of national economy
Individual link.With intelligent power grid technology development and power network physical message system development, power system and communication network
With reference to more and more closely, power communication turns into the important infrastructure of modern power network, is to ensure electricity net safety stable economy fortune
Capable important means.Especially intelligent grid and the energy internet just risen, are proposed higher to powerline network
It is required that.Because power system is relied on the height of communication network, when power system or communication system are broken down, it is possible to meeting
Trigger the cascading failure of another system, so as to cause directly influence on the monitoring system of power network, cause great economic loss.
Therefore, studying this power network and the complicated coupling system of communication network just has important realistic meaning, and emulates skill
Art is the key technology of this coupling network of Quantitative Study.Generally it is difficult to simulate using the method for Computer simulation
The important electric power and communication equipment of actual motion characteristic in kind（As receiving terminal is only receiving 3 continuously in actual stabilized control system
Correct control command just confirm perform control command）, the system of the result of emulation often with actual motion by larger gap,
As a result often do not conform to the actual conditions.And use field experiment method, then it is difficult to test all operating modes of system, tests simultaneously
When also need to stop transport corresponding electric power or communication line, so as to influence power generation.Further, since electric analog and communication simulation
Simulation calculation speed it is different, it is difficult to the precise synchronization of electric analog and communication simulation is realized, using Computer simulation
Technology is difficult to power network and probabilistic accurate simulation of communication network evolutionary process, and can not accurately reflect power network and logical
The change procedure of cascading failure occurs for letter net.Therefore, general joint simulation method is difficult to while meeting power network and communication network
The efficiency and accuracy of complicated coupling system emulation.
The content of the invention
The purpose of the present invention is：For prior art in the deficiency of the complicated coupling system emulation of power network and communication network, carry
Go out a kind of electric power based on RTDS and SDH and communication semi-matter simulating system and construction method, target is to realize real-time electric power
With the HWIL simulation of communication, a kind of semi-matter simulating system of the power transmission network safety and stability based on SDH communication networks is built.Should
System both can be used for the emulation of accurate electric power and communication, and the change procedure of cascading failure occurs for simulating grid and communication network,
It can also be used for testing the performance of second power equipment（Such as test safety and stability and control the control strategy of system, performance）, also may be used
With the reliability and validity of the interior communication agreement for testing second power equipment.
In the case of occurring cascading failure in electric power and communication, the simulation result of electric power should often be communicated
The influence of simulation result, influences the simulation result of communication again, and Computer Simulation in addition also typically is difficult to consider that actual physics are set
Standby performance.Therefore the present invention uses real-time simulation, while influenceing larger actual Power Secondary to set using on simulation result
Standby and SDH network equipment, more accurately emulates power system and is issued from control is sampled, then communicated to control command by SDH
Network transmission, and received and performed by another control device, the complete procedure that most control effect is shown at last.Its is specific
Technical scheme is as follows：
The electric power based on RTDS and SDH and communication semi-matter simulating system of the present invention, including electric power hardware-in-the-loop environment and
Communicate hardware-in-the-loop environment, and the electric power hardware-in-the-loop environment emulates end and second power equipment group by RTDS real-time electric powers
Into the communication hardware-in-the-loop environment is made up of SDH networks in kind and communication simulation end, and SDH networks in kind include SDH
The auxiliary device of equipment, optical fiber and correlation, RTDS real-time electric powers emulation end is connected with second power equipment, and communication simulation end passes through
Protocol converter is connected with SDH networks in kind and second power equipment respectively, and second power equipment is connected with SDH networks in kind；
RTDS real-time electric powers emulation end, second power equipment and communication simulation end are by during gps clock school and synchronization.
Furthermore, the second power equipment is connected with SDH networks in kind by E1 passages.
Furthermore, the protocol converter realizes the conversion of E1 channel datas and Ethernet data, wherein E1 passages
Data are the data of SDH networks in kind or second power equipment side, and Ethernet data is the data of communication simulation side.
Furthermore, in running order GPS emulates end, electric power by Ethernet interface and RTDS real-time electric powers
Secondary device and communication simulation end are calibrated and synchronous.
The construction method of the above-mentioned electric power based on RTDS and SDH and communication semi-matter simulating system, its content is：By RTDS
Real-time electric power emulation end is connected with second power equipment sets up electric power hardware-in-the-loop environment, and SDH networks in kind are passed through into agreement
Converter is connected with communication simulation end sets up communication hardware-in-the-loop environment, and second power equipment is passed through into E1 passages and SDH is real
Thing network is connected and is connected by protocol converter with communication simulation end, SDH network in kind including SDH equipment, optical fiber and
Related auxiliary device, the protocol converter realizes the conversion of E1 channel datas and Ethernet data, wherein E1 channel datas
For SDH networks in kind or the data of second power equipment side, Ethernet data is the data of communication simulation side, and RTDS is electric in real time
Power emulation end, second power equipment and communication simulation end are by during gps clock school and synchronization.
Furthermore, to be sent to RTDS by information during Ethernet interface high-ranking officers electric in real time by running order GPS
Power emulation end, second power equipment and communication simulation end.
Beneficial effects of the present invention are as follows：The present invention emulates the HWIL simulation side in loop using equipment in kind is accessed
Method, can effectively improve the accuracy and credibility of simulation result, and can be used to detect equipment in kind and system；Due to real-time
It is the basic demand of HWIL simulation, all part unified physics clocks of system are synchronous, therefore can realize power network and communication
Probabilistic accurate simulation of net evolutionary process, and accurately reflect the change of power network and communication network generation cascading failure
Journey.The present invention can be used for the electric analog of multiple business type, including stabilized control system emulation, emulation of accurate spatial load forecasting etc.,
It can also be used for equipment test in kind, the checksum test tested, surely control definite value of such as stability control device.Sum it up, this
Invention realizes the combination of SDH networks in kind and the emulation of RTDS real-time electric powers, can effectively emulate the electric power of close coupling and lead to
Letter system, also provides an effective checksum test platform for second power equipment and corresponding communication interface.
Brief description of the drawings
Fig. 1 is electric power and communication semi-matter simulating system schematic diagram based on RTDS and SDH.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings.
Embodiment 1：
The present embodiment is a kind of electric power based on RTDS and SDH and communication semi-matter simulating system, and its system is constituted such as Fig. 1 institutes
Show, mainly by electric power hardware-in-the-loop environment and communication hardware-in-the-loop environment two large divisions, wherein electric power HWIL simulation ring
Border emulates end by RTDS real-time electric powers and stability control device is constituted, and communication hardware-in-the-loop environment is imitative by SDH networks in kind and communication
True end composition.
RTDS（Real Time Digital Simulator））Full name is Real Time Digital Simulator, uses this kind of real-time digital
Emulator emulates end as RTDS real-time electric powers, can carry out real-time simulation to the equipment or net reaction for testing power system,
It has been widely used at present in the emulation of secondary equipment in power system.Because RTDS simulations are real-time, therefore it can be straight
Grounding connection is on second power equipment.
Second power equipment is the auxiliary that primary equipment in power system is supervised, measures, controls, protects or adjusted
Equipment, such as electric power system stability control device.Electric power primary equipment is then to be directly used in production and the equipment using electric energy, all than control
Loop processed（Secondary device）The high electrical equipment of voltage can be described as primary equipment.
SDH material object networks are the communication networks using SDH technology networkings.SDH（Synchronous Digital
Hierarchy, SDH）Technology, defines according to ITU-T suggestion, is that the transmission of the digital signal of friction speed is carried
For a technology of corresponding message structure, including multiplexing method and mapping method, and related synchronous method composition
System.This technology can realize that network is effectively managed, real time business monitoring, dynamic network are safeguarded, different vendor equipment room
The multiple functions such as intercommunication, can greatly improve network resource utilization, reduce administrative and maintenance expense, realize flexibility and reliability and efficient
The network operation and maintenance, therefore be the focus of development and application of world today's message area in terms of transmission technology.
As shown in figure 1, the SDH of system networks in kind are made up of 3 SDH equipments, at least two SDH equipment matches somebody with somebody E1 interfaces
Board, the STM-4 of three SDH equipments is connected by fiber optic network（622Mbps）Optical interface on board, constitutes one
622Mbps/SDH looped networks, the functions such as self-healing ring protection are realized by SDH webmastering softwares.Related board is auxiliary device.
E1 interfaces are the 30 tunnel pulse-code modulation PCM standards in Europe, and its speed is 2.048Mbit/s.An E1 time-division answers
Use frame（Its length T=125us is the microsecond of sampling period 125）Be divided into 32 equal time slots altogether, the numbering of time slot be CH0 ~
CH31.Wherein time slot CH0 is used as frame synchronization, and time slot CH16 is used for transmitting signaling, is left CH1 ~ CH15 and CH17 ~ CH31 common
30 time slots are used as 30 speech channels.Each time slot transmission 8bit, therefore share 256bit.8000 frames are transmitted due to per second, because
This PCM primary group E1 data transfer rate is exactly 2.048Mbit/s.
As shown in figure 1, there is 2 stability control devices in the system, 2 stability control devices emulate end phase with RTDS real-time electric powers
Even.The signal of wherein one stability control device is output to the E1 boards of a SDH equipment by E1 interfaces, and another stability control device leads to
Cross E1 interfaces with a protocol converter to be connected, the other end of the protocol converter is connected to the emulation of operation communication simulation software
On the network interface card of computer.The simulation computer is communication simulation end.There is the SDH equipment with E1 interface boards to pass through for another
E1 interfaces export 2Mbps data frames, by another protocol converter by E1 data frames switch to Ethernet data bag be output to it is logical
On the network interface card at letter emulation end.Packet capturing software on communication simulation software reads network interface card input data bag, and by communication simulation software
The protocol converter being connected with stability control device is output to by network interface card after processing, by protocol converter by the Ethernet data of output
Bag switchs to E1 data frames and is output on stability control device.Stability control device, which is received, performs corresponding operation after data, and feeds back to RTDS
In real-time electric power emulation end, emulated by RTDS real-time electric powers emulation end and export final result.
In said system, when RTDS real-time electric powers emulation end, second power equipment and communication simulation end are by gps clock school
And synchronization.Information is sent to RTDS real-time electric powers by Ethernet interface and emulates end, electricity during in running order GPS high-ranking officers
The simulation computer of power secondary device and operation communication simulation software, makes system operation in same physical time, it is ensured that whole
Individual system operation in real-time simulation state by phy clock realize system between synchronization.
Although the present invention is disclosed as above with preferred embodiment, embodiment is not for limiting the present invention's.Not
In the spirit and scope for departing from the present invention, any equivalence changes done or retouching also belong to the protection domain of the present invention.Cause
The content that this protection scope of the present invention should be defined using claims hereof is standard.
Claims (6)
1. a kind of electric power based on RTDS and SDH and communication semi-matter simulating system, it is characterised in that：It is in kind imitative including electric power half
True environment and communication hardware-in-the-loop environment, the electric power hardware-in-the-loop environment emulate end and electric power two by RTDS real-time electric powers
Secondary device is constituted, and the communication hardware-in-the-loop environment is made up of SDH networks in kind and communication simulation end, SDH nets in kind
Network includes the auxiliary device of SDH equipment, optical fiber and correlation, and RTDS real-time electric powers emulation end is connected with second power equipment, communicated
Emulation end is connected with SDH networks in kind and second power equipment respectively by protocol converter, and second power equipment is in kind with SDH
Network is connected；RTDS real-time electric powers emulation end, second power equipment and communication simulation end are by during gps clock school and synchronization.
2. the electric power according to claim 1 based on RTDS and SDH and communication semi-matter simulating system, it is characterised in that
The second power equipment is connected with SDH networks in kind by E1 passages.
3. the electric power according to claim 2 based on RTDS and SDH and communication semi-matter simulating system, it is characterised in that
The protocol converter realizes the conversion of E1 channel datas and Ethernet data, wherein E1 channel datas be SDH networks in kind or
The data of second power equipment side, Ethernet data is the data of communication simulation side.
4. according to any described electric power and communication semi-matter simulating system based on RTDS and SDH of claim 1 ~ 3, its feature
It is, in running order GPS emulates end, second power equipment and communication by Ethernet interface and RTDS real-time electric powers
Emulation end is calibrated and synchronous.
5. the construction method of a kind of electric power based on RTDS and SDH and communication semi-matter simulating system, it is characterised in that by RTDS
Real-time electric power emulation end is connected with second power equipment sets up electric power hardware-in-the-loop environment, and SDH networks in kind are passed through into agreement
Converter is connected with communication simulation end sets up communication hardware-in-the-loop environment, and second power equipment is passed through into E1 passages and SDH is real
Thing network is connected and is connected by protocol converter with communication simulation end, SDH network in kind including SDH equipment, optical fiber and
Related auxiliary device, the protocol converter realizes the conversion of E1 channel datas and Ethernet data, wherein E1 channel datas
For SDH networks in kind or the data of second power equipment side, Ethernet data is the data of communication simulation side, and RTDS is electric in real time
Power emulation end, second power equipment and communication simulation end are by during gps clock school and synchronization.
6. the construction method of the electric power according to claim 5 based on RTDS and SDH and communication semi-matter simulating system, its
It is characterised by：In running order GPS by information during Ethernet interface high-ranking officers be sent to RTDS real-time electric powers emulate end,
Second power equipment and communication simulation end.
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| CN201710303295.3A CN106970537B (en) | 2017-05-03 | 2017-05-03 | Electric power and communication semi-physical simulation system based on RTDS and SDH and construction method |
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| CN201710303295.3A CN106970537B (en) | 2017-05-03 | 2017-05-03 | Electric power and communication semi-physical simulation system based on RTDS and SDH and construction method |
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| CN108255070A (en) * | 2017-12-28 | 2018-07-06 | 国电南瑞科技股份有限公司 | Towards the HWIL simulation communication means of electric power stability control device |
| CN108650147A (en) * | 2018-04-09 | 2018-10-12 | 中国电力科学研究院有限公司 | Optical Transmission Network OTN semi-physical real-time simulation system and method |
| CN108696385A (en) * | 2018-03-30 | 2018-10-23 | 中国电力科学研究院有限公司 | The emulation mode of SDH Optical Transmission Network OTNs in electric system based on EXata |
| CN109274418A (en) * | 2018-03-20 | 2019-01-25 | 全球能源互联网研究院有限公司 | A kind of fiber optic communication Hardware In The Loop Simulation Method and device |
| CN111679655A (en) * | 2020-06-18 | 2020-09-18 | 海南电网有限责任公司 | Constant value calibration device of safety and stability control system |
| CN111917750A (en) * | 2020-07-24 | 2020-11-10 | 国电南瑞科技股份有限公司 | Data interaction method and interface for simulation communication network and simulation power network |
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| CN108255070A (en) * | 2017-12-28 | 2018-07-06 | 国电南瑞科技股份有限公司 | Towards the HWIL simulation communication means of electric power stability control device |
| CN109274418A (en) * | 2018-03-20 | 2019-01-25 | 全球能源互联网研究院有限公司 | A kind of fiber optic communication Hardware In The Loop Simulation Method and device |
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| CN108696385A (en) * | 2018-03-30 | 2018-10-23 | 中国电力科学研究院有限公司 | The emulation mode of SDH Optical Transmission Network OTNs in electric system based on EXata |
| CN108650147A (en) * | 2018-04-09 | 2018-10-12 | 中国电力科学研究院有限公司 | Optical Transmission Network OTN semi-physical real-time simulation system and method |
| CN111679655A (en) * | 2020-06-18 | 2020-09-18 | 海南电网有限责任公司 | Constant value calibration device of safety and stability control system |
| CN111679655B (en) * | 2020-06-18 | 2023-09-15 | 海南电网有限责任公司 | Fixed value checking device of safety and stability control system |
| CN111917750A (en) * | 2020-07-24 | 2020-11-10 | 国电南瑞科技股份有限公司 | Data interaction method and interface for simulation communication network and simulation power network |
| CN111917750B (en) * | 2020-07-24 | 2024-02-27 | 国电南瑞科技股份有限公司 | Data interaction method and interface for simulation communication network and simulation power network |
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