CN105866563A - Relay protection algorithm validation system and method thereof - Google Patents
Relay protection algorithm validation system and method thereof Download PDFInfo
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- CN105866563A CN105866563A CN201510031435.7A CN201510031435A CN105866563A CN 105866563 A CN105866563 A CN 105866563A CN 201510031435 A CN201510031435 A CN 201510031435A CN 105866563 A CN105866563 A CN 105866563A
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Abstract
The invention provides a relay protection algorithm validation system and a method thereof. The system comprises a fault simulation model module, a real-time control module, a communication module, a buffer area module, an FFT module and a relay protection algorithm module which are connected in sequence. The method comprises steps: (1) a fault simulation model is selected to generate a power system fault signal; (2) the power system fault signal is subjected to Fourier transformation; and (3) fundamental wave related information is calculated, and effectiveness is judged according to a calculation result. Matlab and FPGA are adopted for joint programming, the Matlab/Simulink fault simulation function is made full use of, various power system faults can be simulated thoroughly, and the power system fault signal generation difficulty is reduced. The Matlab and the FPGA adopt a TCP/IP port for data transmission, and through setting a transmission rate, an interface interacted with the FPGA of a data acquisition system can be compatible.
Description
Technical field
The present invention relates to a kind of checking system and method, a kind of relay protection algorithm checking system and side thereof
Method.
Background technology
Along with the development of intelligent grid, power grid architecture is increasingly sophisticated, product quality and the technical specification to relay protection device
Requirement more and more higher, and existing relay protection device is many based on single CPU micro-architecture, and the relay protection of configuration is calculated
Method is based on C language programming realization, performance boost limited space.At present, mainstream vendor and each R&D institution launch to continue
The research of electric protection, mainly has based on PowerPC+DSP, based on ARM+DSP, based on systems such as ARM+FPGA
Framework.Wherein, in view of high performance-price ratio and the flexible programming of FPGA of ARM, frame based on ARM+FPGA system
Structure is the most universal.ARM realizes embedded real-time operating system and UI human-computer interaction function, and FPGA realizes filtering, electricity
Can the function such as quality analysis, relay protection.
Each phase voltage current fault signal is the necessary means of checking relay protection algorithm, but, how to simulate virtual voltage
Current fault signal also passes to the output signal of FPGA and how real-time reception relay protection algoritic module in real time and is
The key of relay protection algorithm checking system.At present, the method that great majority research uses is to initially set up a single event
Barrier model, its operation troubles model produces voltage x current fault-signal, and voltage x current fault-signal data is saved in spy
Determine formatted file, finally by this specific format file copy to FPGA, in order to carry out the design of relay protection algoritic module
Checking.There is the deficiencies such as fault model is single, real-time is low in this verification method.
Summary of the invention
For the deficiencies in the prior art, the present invention provides a kind of relay protection algorithm checking system and method thereof.This system and
Its method, based on Matlab and FPGA combined programming, the phantom of structure power system, produces electric power system fault letter
Number, and by Ethernet interface, Fault Signal Analyses in HV Transmission is sent in real time the relay protection algoritic module on FPGA, enter
Row correlation computations, then feeds back to result of calculation Matlab, and then verifies relay protection algorithm validity.This
Plant relay protection algorithm checking system and method contributes to carrying out relay protection algorithm research, improve relay protection algorithm
Reliability, motility, practicality, extensibility and portability, substantially reduce the construction cycle of product.
The present invention uses the phantom of Matlab software construction power system, electric power system fault is carried out emulation meter
Calculate, the fault-signal of real-time Output simulation model, and by Ethernet interface, fault-signal is sent on FPGA in real time
Relay protection algoritic module, and then the output signal of relay protection algoritic module is fed back to Matlab by Ethernet interface
End, to verify the effectiveness of relay protection algorithm.
Relay protection algorithm checking system in the present invention by fault simulation model module, real-time control module, communication module,
Buffer zone module, FFT module and relay protection algoritic module totally six part composition, each module composition and function are as follows:
(1) fault simulation model module:
Fault simulation model module, is used for building various electric power system model, simulates the fault-signal of power system, and real
Time output fault-signal.
(2) real-time control module:
Real-time control module, controls fault simulation model module, by the man-machine interaction at real-time control module in real time
Interface input voltage and input current resistance parameter can realize arranging the voltage x current resistance parameter value of fault simulation model module, therefore
Barrier phantom module can also be real-time transfer overvoltage current value to real-time control module, real-time display module can show in real time
Show voltage current waveform.
(3) communication module:
Communication module, is made up of the TCP/IP module of emulation end and TCP/IP module two parts of FPGA end.Communication module
Data for real-time control module and FPGA exchange, by Ethernet interface, according to ICP/IP protocol transceiving data.
The TCP/IP module of emulation end realizes voltage x current fault-signal is sent to FPGA in real time.The TCP/IP of FPGA end
Module receives the voltage and current signal that emulation end TCP/IP module sends.
(4) buffer zone module:
Buffer zone module, for realizing the storage of data.
(5) FFT module:
FFT module, carries out FFT for realization to voltage x current value, by the voltage x current value of input is carried out FFT
Conversion, the first-harmonic of output voltage electric current and harmonic amplitude.
(6) relay protection algoritic module:
Relay protection algoritic module, is the nucleus module of native system, realizes various relay protection algorithm for hardware, for
The current specific relay protection algorithm put into, by comparing the threshold value of voltage x current value and protection algorism, decision is
No output trip signal.When meeting trip condition, export trip signal, and by Ethernet interface, according to TCP/IP
Trip signal is fed back to real-time control module by agreement, and at the human-computer interaction interface display trip signal of real-time control module
Waveform.
It is an object of the invention to use following technical proposals to realize:
A kind of relay protection algorithm checking system, it thes improvement is that, described system includes the fault simulation being sequentially connected with
Model module, real-time control module, communication module, buffer zone module, FFT module and relay protection algoritic module；
Described communication module includes TCP/IP module and the TCP/IP module of FPGA end emulating end；
Described real-time control module is two-way with fault simulation model module and communication module respectively to be connected；
Unidirectional between described communication module, buffer zone module, FFT module, relay protection algoritic module it is sequentially connected；
Described relay protection algoritic module is unidirectional with communication module to be connected.
Preferably, described real-time control module, uses Matlab/GUI to build and controls human-computer interaction module in real time, pass through
The human-computer interaction interface of real-time control module controls startup and the end of simulated fault model module.
Preferably, described fault simulation model module, use all kinds of electric power system model of Matlab/Simulink module construction,
The various fault-signals of simulation power system, and output voltage current fault signal in real time.
Preferably, described real-time control module must obtain voltage x current value from fault simulation model module is real-time, and shows in real time
Show voltage current waveform.
Preferably, current voltage electric current is transmitted in real time by described real-time control module by the TCP/IP module of emulation end
To FPGA platform；FPGA platform is by the voltage of the TCP/IP module real-time reception fault simulation model of FPGA end
Current signal.
Described communication module is for the data exchange of real-time control module and FPGA, by Ethernet interface, according to TCP/IP
Agreement transceiving data.
Preferably, described buffer zone module is after receiving data success in the TCP/IP module of FPGA, in real time by number
According to being stored in buffer zone module.
Preferably, described FFT module is arranged according to intervalometer, and in each Fixed Time Interval, FFT module is from buffering
District's module obtains voltage and current signal, after voltage x current value is carried out FFT, the first-harmonic of output voltage electric current and harmonic wave
Amplitude.
Preferably, described relay protection algoritic module is according to the voltage x current data after FFT, relay protection algorithm mould
Block, by comparing the computing of voltage x current value and protection algorism threshold value, decides whether to export trip signal；When satisfied tripping operation
During condition, relay protection module output trip signal.
A kind of relay protection proof of algorithm method that the present invention provides based on another object, it thes improvement is that, described side
Method includes
(1) selected fault simulation model, produces Fault Signal Analyses in HV Transmission；
(2) Fault Signal Analyses in HV Transmission is carried out Fourier transformation；
(3) calculate first-harmonic relevant information, judge effectiveness according to result of calculation.
Preferably, described step (1) includes by real-time control module startup separator phantom module, selected fault
Phantom, produces Fault Signal Analyses in HV Transmission, Fault Signal Analyses in HV Transmission is fed back to real-time control module.
Preferably, described step (2) includes that Fault Signal Analyses in HV Transmission is passed to communication module by real-time control module,
Communication module receives and sends Fault Signal Analyses in HV Transmission, and Fault Signal Analyses in HV Transmission is passed on FPGA by communication module
FFT module, the Fault Signal Analyses in HV Transmission received is carried out Fourier transformation by FFT module, by first-harmonic relevant information
Pass to relay protection algoritic module.
Preferably, described step (3) includes that relay protection algoritic module carries out calculating and calculating being tied according to input information
Fruit passes to communication module, and relay protection algoritic module result of calculation is fed back to real-time control module, in real time by communication module
Control module judges the effectiveness of relay protection algoritic module according to relay protection algoritic module result of calculation.
With immediate prior art ratio, the technical scheme that the present invention provides has a following excellent effect:
Use Matlab and FPGA combined programming, make full use of Matlab/Simulink fault simulation function, more fully
Simulate various electric power system fault, reduce the difficulty that Fault Signal Analyses in HV Transmission produces.
Matlab with real-time monitoring and control fault-signal, and can pass to FPGA and carry out relay protection computing in real time, improves
The debugging real-time of relay protection module and transparency.
Matlab and FPGA uses TCP/IP port to carry out data transmission, by setting transfer rate, and can be with compatible data
The interface that acquisition system is mutual with FPGA.
Accompanying drawing explanation
A kind of relay protection algorithm checking system structure chart that Fig. 1 provides for the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
As described in Figure 1, the present invention is analysing in depth on the basis of various Fault Signal Analyses in HV Transmission mechanism, comprehensive Matlab
Software and the advantage of FPGA platform, it is proposed that a kind of relay protection algorithm checking system and method thereof.This system and method
Can be applicable to the research and development of intelligent grid relay protection measuring and controlling equipment, shorten the product development cycle.
One relay protection proof of algorithm method of the present invention is specific as follows:
Based on Matlab and FPGA platform combined programming, it is first turned on real-time control module, passes through real-time control module
Startup separator phantom module, some fault simulation model selected, produce particular power system failure signal, and will
Fault Signal Analyses in HV Transmission feeds back to real-time control module；
Fault Signal Analyses in HV Transmission is passed to communication module by real-time control module, and communication module receives and sends power system
Fault-signal, Fault Signal Analyses in HV Transmission is passed to the FFT module on FPGA by communication module, and FFT module will receive
To Fault Signal Analyses in HV Transmission carry out Fourier transformation, then first-harmonic relevant information is passed to relay protection algorithm mould
Block；
Relay protection algoritic module carries out calculating and result of calculation passing to communication module, communication module according to input information
Relay protection algoritic module result of calculation is fed back to real-time control module, and real-time control module is according to relay protection algorithm mould
Block result of calculation judges the effectiveness of relay protection algoritic module.
One relay protection algorithm checking system of the present invention, including fault simulation model module, real-time control module, communication
Module, buffer zone module, FFT module and relay protection algoritic module；
Described fault simulation model module, real-time control module, communication module, buffer zone module, FFT module and relay
Protection algorism module is sequentially connected with；
Wherein, with real-time control module for beginning, with real-time control module and fault simulation model module, real-time control module
And two-way between communication module it is sequentially connected.Communication module, buffer zone module, FFT module, relay protection algoritic module it
Between unidirectional be sequentially connected.Relay protection algoritic module is unidirectional with communication module to be connected.
Wherein, real-time control module uses Matlab/GUI structure to control human-computer interaction module in real time, by control in real time
The human-computer interaction interface of molding block controls startup and the end of simulated fault model module.Further, defeated at human-computer interaction interface
Enter voltage x current resistance parameter value and can realize arranging the voltage x current resistance parameter value of fault simulation model module.
Wherein, fault simulation model module uses all kinds of electric power system model of Matlab/Simulink module construction, simulation electricity
The various fault-signals of Force system, and can real-time output voltage current fault signal.
Wherein, real-time control module monitoring fault simulation model, and obtain false voltage current signal in real time.
Wherein, real-time control module must obtain voltage x current value from fault simulation model module is real-time, in real time display voltage electricity
Stream waveform.
Wherein, communication module completes the data exchange of real-time control module and FPGA.Real-time control module is by emulation end
TCP/IP module current voltage electric current is passed to FPGA platform in real time.FPGA platform is by FPGA end
The voltage and current signal of TCP/IP module real-time reception fault simulation model.
Wherein, communication module is for the data exchange of real-time control module and FPGA, by Ethernet interface, according to TCP/IP
Agreement transceiving data.
Wherein, buffer zone module, after the TCP/IP module of FPGA receives data success, stores data in real time
Buffer zone module.
Wherein, FFT module is arranged according to intervalometer, and in each Fixed Time Interval, FFT module is from buffer zone module
Obtain voltage and current signal, voltage x current value is carried out FFT, the first-harmonic of output voltage electric current and harmonic amplitude.
Wherein, relay protection algoritic module according to the voltage x current data after FFT, relay protection algoritic module according to
The current specific relay protection algorithm put into, by comparing the computing of voltage x current value and protection algorism threshold value, decision is
No output trip signal.When meeting trip condition, relay protection module output trip signal.
Wherein, the present invention passes through Ethernet interface, according to ICP/IP protocol, the output signal quilt of relay protection algoritic module
Pass to real-time control module in real time, and at the human-computer interaction interface display trip signal waveform of real-time control module.
Finally should be noted that: above example is only in order to illustrate that technical scheme is not intended to limit, affiliated
The those of ordinary skill in field still the detailed description of the invention of the present invention can be modified with reference to above-described embodiment or
Equivalent, these are without departing from any amendment of spirit and scope of the invention or equivalent, the basis all awaited the reply in application
Within the claims of invention.
Claims (12)
1. a relay protection algorithm checking system, it is characterised in that described system includes the fault simulation being sequentially connected with
Model module, real-time control module, communication module, buffer zone module, FFT module and relay protection algoritic module；
Described communication module includes TCP/IP module and the TCP/IP module of FPGA end emulating end；
Described real-time control module is two-way with fault simulation model module and communication module respectively to be connected；
Unidirectional between described communication module, buffer zone module, FFT module, relay protection algoritic module it is sequentially connected；
Described relay protection algoritic module is unidirectional with communication module to be connected.
2. a kind of relay protection algorithm checking system as claimed in claim 1, it is characterised in that described real-time control
Module, uses Matlab/GUI to build and controls human-computer interaction module in real time, by man-machine interaction circle of real-time control module
Face controls startup and the end of simulated fault model module.
3. a kind of relay protection algorithm checking system as claimed in claim 1, it is characterised in that described fault simulation
Model module, uses all kinds of electric power system model of Matlab/Simulink module construction, the various faults of simulation power system
Signal, and output voltage current fault signal in real time.
4. a kind of relay protection algorithm checking system as claimed in claim 1, it is characterised in that described real-time control
Module is from the real-time voltage x current value that must obtain of fault simulation model module, and shows voltage current waveform in real time.
5. a kind of relay protection algorithm checking system as claimed in claim 1, it is characterised in that described real-time control
Current voltage electric current is passed to FPGA platform by the TCP/IP module of emulation end by module in real time；FPGA platform
Voltage and current signal by the TCP/IP module real-time reception fault simulation model of FPGA end.
Described communication module is for the data exchange of real-time control module and FPGA, by Ethernet interface, according to TCP/IP
Agreement transceiving data.
6. a kind of relay protection algorithm checking system as claimed in claim 1, it is characterised in that described relief area mould
Block, after receiving data success in the TCP/IP module of FPGA, stores data in buffer zone module in real time.
7. a kind of relay protection algorithm checking system as claimed in claim 1, it is characterised in that described FFT module
Arranging according to intervalometer, in each Fixed Time Interval, FFT module obtains voltage and current signal from buffer zone module,
After voltage x current value is carried out FFT, the first-harmonic of output voltage electric current and harmonic amplitude.
8. a kind of relay protection algorithm checking system as claimed in claim 1, it is characterised in that described relay protection
Algoritic module is according to the voltage x current data after FFT, and relay protection algoritic module is by voltage x current value and protection
The computing of algorithm threshold value is compared, and decides whether to export trip signal；When meeting trip condition, relay protection module exports
Trip signal.
9. a relay protection proof of algorithm method, it is characterised in that described method includes
(1) selected fault simulation model, produces Fault Signal Analyses in HV Transmission；
(2) Fault Signal Analyses in HV Transmission is carried out Fourier transformation；
(3) calculate first-harmonic relevant information, judge effectiveness according to result of calculation.
10. a kind of relay protection proof of algorithm method as claimed in claim 9, it is characterised in that described step (1)
Including by real-time control module startup separator phantom module, select fault simulation model, produce electric power system fault
Signal, feeds back to real-time control module by Fault Signal Analyses in HV Transmission.
11. a kind of relay protection proof of algorithm methods as claimed in claim 9, it is characterised in that described step (2)
Including real-time control module, Fault Signal Analyses in HV Transmission being passed to communication module, communication module receives and sends power system
Fault-signal, Fault Signal Analyses in HV Transmission is passed to the FFT module on FPGA by communication module, and FFT module will receive
To Fault Signal Analyses in HV Transmission carry out Fourier transformation, first-harmonic relevant information is passed to relay protection algoritic module.
12. a kind of relay protection proof of algorithm methods as claimed in claim 9, it is characterised in that described step (3)
Carry out calculating and result of calculation passing to communication module, communication module according to input information including relay protection algoritic module
Relay protection algoritic module result of calculation is fed back to real-time control module, and real-time control module is according to relay protection algorithm mould
Block result of calculation judges the effectiveness of relay protection algoritic module.
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| CN109101714A (en) * | 2018-08-02 | 2018-12-28 | 云南电网有限责任公司昆明供电局 | A method of verifying protective relaying device logic function |
| CN109584664A (en) * | 2018-11-21 | 2019-04-05 | 宁波恒晨电力建设有限公司 | Emulation experiment method and system for relay protection |
| CN109656146A (en) * | 2018-11-21 | 2019-04-19 | 宁波恒晨电力建设有限公司 | Relay Protection Experiment System based on emulation technology |
| CN112036023A (en) * | 2020-08-26 | 2020-12-04 | 南京国电南自维美德自动化有限公司 | Software integrated generation system for generator transformer bank protection device |
| CN112784382A (en) * | 2021-01-22 | 2021-05-11 | 国网山东省电力公司德州市陵城区供电公司 | Simulink simulation-based power distribution network three-level protection setting calculation method |
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Application publication date: 20160817 |
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| RJ01 | Rejection of invention patent application after publication |