CN204961152U - Pumped storage unit control program off -line test system - Google Patents
Pumped storage unit control program off -line test system Download PDFInfo
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- CN204961152U CN204961152U CN201520727761.7U CN201520727761U CN204961152U CN 204961152 U CN204961152 U CN 204961152U CN 201520727761 U CN201520727761 U CN 201520727761U CN 204961152 U CN204961152 U CN 204961152U
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- 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
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
The utility model discloses a pumped storage unit control program off -line test system, include: terrain the control unit (LCU), engineer station, operator station and analog simulation ware. The utility model provides a pumped storage unit control program test system can be simulated each signal among the pumped storage unit control system, can simulate the actual start of unit, the flow of shut down, including that start -up electricity generation, BTB open the pump, SFC opens pump, electricity generation orderly closedown and jumps quick -witted, as to draw water orderly closedown and jump machine process, can carrying out the off -line test to building designing program of power plant's technological transformation procedure and newly -built power plant, the risk of avoiding existing among the online test reduces test time.
Description
Technical field
The utility model relates to a kind of pump-storage generator control program off-line test system.
Background technique
In power industry, pump-storage generator change working is flexible, start and stop are quick, unnecessary electric energy when network load is low, change the high value electric energy of electrical network peak time into, be suitable for frequency modulation, phase modulation, the cycle of stable power system and voltage, the efficiency of thermal power station, wind power station and nuclear power station etc. in raising system.Be the energy storage device that current electric power system is most economical reliably, Life cycle is the longest, capacity is maximum, being ensure that steady in a long-term the running at optimum state such as power end large electric power plant or nuclear power generating sets provides safeguard, is that the stabilization of power grids regulates requisite means.Rationally, the unit allocation program optimized supports one of pump-storage generator core technology realizing this function.In new power plant construction with when undergoing technological transformation to built power plant, need the control program redesigning pump-storage generator.But new control program may also exist the defects such as validity, compatibility, robustness, therefore needs to test it.At present to the pump-storage generator control program test method adopting on-line testing more; on-line testing directly on unit, runs control program; control the flow processs such as unit start, shutdown; comprise start generating, BTB opens pump, SFC opens pump, generating orderly closedown and chaser, draw water orderly closedown and chaser process; then by detecting the running state of pump-storage generator, control program whether existing defects is determined.On-line testing needs unit starting to run, complicated operation, exists and because of the unknown of control program safety reliability, there is very large potential safety hazard, and starting unit test in addition needs to spend a large amount of manpower and time cost, also can waste waterpower resourses, increases unit wearing and tearing.Therefore on-line testing pump-storage generator control program is not a kind of convenient, reliable test method.
Model utility content
The purpose of this utility model overcomes the deficiencies in the prior art, and provide a kind of pump-storage generator control program test system, the utility model adopts following technological scheme in order to achieve the above object:
A kind of pump-storage generator control program test system, comprising:
Local control unit (LCU), adopts entity programmable logic controller (PLC) (PLC) to download, the control program of operating unit;
Engineer station, in order to the work of the configuration and relevant controlling System's composition that complete application software;
Operator station, provides man machine operation interface, completes unit allocation program control, and show unit control flow, capital equipment run picture dynamically, each switch motion situation and major parameter situation of change in electric loop;
Analog simulator, complete the simulation of each sub-control system of unit, the simulation of feedback signal needed for unit sequence control process, forms the emulation of power plant's lower computer system together with the programmable logic controller (PLC) (PLC) of unit local control unit (LCU).
Preferably, described programmable logic controller (PLC) (PLC) adopts Siemens S7-400 PLC, and described Siemens S7-400 PLC is configured with Siemens 414-5HPN/DPCPU and Siemens PS405 power supply 10A.
Preferably, described Siemens S7-400 PLC deletes the remote I/O station in original hardware configuration, and the data block of adding DIM digital input module, digital output module, Analog input mModule, analog output module and mapping for numeral input (DI), numeral output (DO), analog input (AI), analog output (AO) on mainframe.
Preferably, described sub-control system comprises machine unit speed regulating device system, excitation system, SFC system, technical water supply system, ball valve system, tail brake system.
Preferably, described engineer station carries out communication by Ethernet and described local control unit (LCU), to modify to PLC program and to download; Described operator station also carries out communication by Ethernet and described local control unit (LCU), to carry out operational testing to the program of PLC; Described engineer station and described operator station Siemens's platform carry out communication, provide function software to realize described engineer station to described operator station.
Preferably, described local control unit (LCU) and described analog simulator are by opc server communication.
The pump-storage generator control program test system that the utility model provides can be simulated each signal in pump-storage generator control system; the start of unit reality, the flow process of shutdown can be simulated; comprise start generating, BTB opens pump, SFC opens pump, generating orderly closedown and chaser, draw water orderly closedown and chaser process; off-line test can be carried out to built power plant technological transformation program and designing program of new power plant construction, reduce the test time.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms a application's part, does not form improper restriction of the present utility model, in the accompanying drawings:
Fig. 1 is the utility model embodiment system architecture schematic diagram;
Fig. 2 is the utility model embodiment System Working Principle schematic diagram;
Fig. 3 is the utility model embodiment working-flow schematic diagram.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to restriction of the present utility model.
Embodiment:
As shown in Figure 1, a kind of pump-storage generator control program test system, comprising:
Local control unit (LCU), adopts entity programmable logic controller (PLC) (PLC) to install the control program of unit;
Engineer station, in order to the work of the configuration and relevant controlling System's composition that complete application software;
Operator station, operator station is provided with WinccHMI monitoring software, be used to provide man machine operation interface, complete picture display, acoustooptic alarm, procedure parameter stored record, remote operation and report printing, realize the communication with unit local control unit (LCU);
Analog simulator, analog simulator is provided with Labview simulation softwares, the control objects of corresponding tool to unit allocation program such as LABVIEW are used to simulate, be used for the simulation of each sub-control system of unit, the simulation of feedback signal needed for unit sequence control process, forms the emulation of power plant's lower computer system together with the programmable logic controller (PLC) (PLC) of unit local control unit (LCU).
As shown in Figure 2, by above-described embodiment scheme, PLC operating unit control program.Labview simulation softwares simulates real each subtense angle runnability sends each system cloud gray model information of unit to PLC; WiccHMI picture monitoring unit operation, sends control command and monitors each system, unit allocation program runnability, record unit operation information.
Working principle is as follows:
1, the Labview program in emulation simulator starts to perform, and the PLC to local control unit (LCU) sends the original state signal of shutting down needed for stable state and startup optimization, and unit is in and meets initial condition mode.
2, unit allocation order is sent out by WinccHMI monitoring software by operator station.
3, after PLC receives control command, unit allocation program starts to perform.
4, PLC exports DO/AO control signal (being equivalent to Labview input signal DI/AI) in the process of implementation at control program.
5, Labview analog simulator receives PLC and exports DO/AO control signal (being equivalent to Labview input signal DI/AI), simulated program runs and exports corresponding DO/AO signal (being equivalent to PLCDI/AI signal), the signal that this signal sends when being each system cloud gray model is also the signal needed for unit normal program operation.
6, PLC receives the DO/AO signal (being equivalent to PLCDI/AI signal) that Labview analog simulator exports, think that the control command that PLC sends effectively is performed, reach the condition that unit allocation program continues to perform, unit procedure order performs until program circuit terminates.Unit allocation program test success like this is no problem.
7, HMI picture real time monitoring unit allocation program runnability, the operation information Eventlog (control command, main input, output signal, the time that fault etc. occur, event description) of record unit
If 8 unit allocation programs are incorrect, the DO/AO signal of mistake must be sent, or DO/AO signal can not send again in the effective time,
Labview analog simulator does not receive DO/AO signal (being equivalent to Labview input signal DI/AI), just cannot send DO/AO signal (being equivalent to PLCDI/AI signal) required for unit normal program operation to PLC, unit program cannot normally be run, and can report to the police or walk chaser flow process.
Labview analog simulator receives incorrect PLCDO/AO signal (being equivalent to Labview input signal DI/AI), and the truth can simulated in unit actual moving process sends warning or chaser signal.
If 9 unit allocation programs are no problem; in normal course of operation, trouble signal (can arrange random failure or specific fault) is set by Labview; after PLC receives trouble signal that Labview sends (as too high in underpressure, liquid level, ball valve is not normally opened); with to receive same signal under true environment the same, send the actions such as warning, protection, chaser.
Because unit allocation program operation result and to run the result of reaction on platform just the same, so can as the test platform of unit allocation program under true environment.
Testing process is as shown in Figure 3:
First working train family simulated program, click initialization button, executive control program initialization operation, makes control program be in shutdown lower state.Starter group command (can be that CP operating mode, P operating mode, GC operating mode, G operating mode or SR operating mode start) is sent out by operator station, PLC receives startup command control program and brings into operation, DO/AO control signal is exported in running, control signal passes to Labview simulation softwares as DI/AI input signal through OPCSever, simulation softwares is pressed input signal and is performed simulator program, exports unit and normally runs required run signal.The DO/AO signal that simulation software sends passes to PLC as DI/AI input signal through OPCSever, and control program presses input signal working procedure.If there is not any problem in unit allocation program, program by always by process flow operation until reach the operating mode stable state (as P stable state, PC stable state, G stable state, GC stable state, SR stable state, S stable state) that control command issues.When program runs to stable state, maintenance stable state is waited for next startup command.(note: SR: spinning reserve, P: draw water, CP: draw water phase modulation, G: generating, CG: turbine condenser mode)
If unit allocation program exists leak, PLC can not receive the correct run signal that simulated program sends in time, then can produce trouble signal, be there occurs what fault by our program of can checking of HMI picture of operator station in running.If trouble signal is not chaser signal, do not affect unit operation, then control program can continue to perform; if trouble signal is chaser signal; then can active control program chaser flow process, program performs until compressor emergency shutdown, and after recovering chaser signal, control program just can reach shutdown stable state.
If control program has trouble signal to produce in test process, then control program certainly exists leak.Person skilled is by HMI fault message, bug can be found out easily in conjunction with process analysis, can continue test after revision program until flow process terminates, if control program can complete flow testing smoothly, prover is no problem, can run on unit.When control program is in stable state, exits simulated program and just can complete program test work.
Pump-storage generator change working is flexible, start and stop quick, is that the stabilization of power grids regulates requisite means, and unit allocation program that is reasonable, that optimize supports one of accumulation of energy unit core technology realizing this function.Pump-storage generator operating mode is complicated; controlling unit is many; by development test platform; can simulate each signal in pump-storage generator control system; the start of unit reality, the flow process of shutdown can be simulated, comprise start generating, BTB opens pump, SFC opens pump, generating orderly closedown and chaser, draw water orderly closedown and chaser process, pass through simulation test; off-line test can be carried out to built power plant technological transformation program and designing program of new power plant construction, reduce the test time.And can be used as the universal test development platform of the upgrading of different manufacturers type unit control system software and hardware or new control system optimal inspection.This test platform possesses the function of inspection actual set start and stop sequence control process, and the model that unit sequence control process is corresponding is similar to actual set runnability, can simulate the flow process of each change working.Engineer station and operator station configuration human-machine interface close friend, possess the functional requirement of actual pump-storage generator upper-position unit.Can simulate unit trouble signal, runnability under simulation unit fault state, has event recording function, record unit operation information.
As the preferred version of above-described embodiment scheme, programmable logic controller (PLC) described in the present embodiment (PLC) adopts Siemens S7-400 PLC, and described Siemens S7-400 PLC is configured with Siemens 414-5HPN/DPCPU and Siemens PS405 power supply 10A.
As the preferred version of above-described embodiment scheme, the PLC of Siemens S7-400 described in the present embodiment deletes the remote I/O station in original hardware configuration, and the data block of adding DIM digital input module, digital output module, Analog input mModule, analog output module and mapping for numeral input (DI), numeral output (DO), analog input (AI), analog output (AO) on mainframe.
Wherein, the size of data block is determined according to the number of programmed hardware point: DO point roughly has 36*8, and DI point roughly has 86*8, AI point roughly has 312, AO point roughly has 8, does the mapping program of a hard spot according to counting, and this program is convenient to be connected and disconnects hardware point.It is exactly the complete program that can be used for controlling when hardware point couples together time.Test program logic just can be used for after connection disconnects.
Further, existing S7 program directly cannot realize simulation, and DI, DO, AI, AO of the hard spot mainly directly used in program programme.Simulation software cannot operate hard spot, therefore needs to modify to program.Hardware point in program is all modified as the point in data block.Hardware point is amended as follows:
The amendment of DI point, is all modified as the logical relation of the hard spot of the DI used in program the logical relation of data block point by program comparison;
The amendment of DO point, is all modified as the logical relation of the DO point used in program the logical relation of data block point by program comparison;
The amendment of AI point, is modified as data block point by program comparison the whole of the analog input point used in program.Mainly revise the collection point of IW wherein;
The amendment of AO point, is all modified as database point by program comparison the analog output point used in program, mainly revises the output point of QW.
As the preferred version of above-described embodiment scheme, sub-control system described in the present embodiment comprises the sub-control systems such as machine unit speed regulating device system, excitation system, SFC system, technical water supply system, ball valve tail brake system.
As the preferred version of above-described embodiment scheme, engineer station described in the present embodiment carries out communication by Ethernet and described local control unit (LCU), to modify to PLC program and to download; Described operator station also carries out communication by Ethernet and described local control unit (LCU), to carry out operational testing to the program of PLC; Described engineer station and described operator station Siemens's platform carry out communication, provide function software to realize described engineer station to described operator station.
As shown in Figure 2, as the preferred version of above-described embodiment scheme, local control unit described in the present embodiment (LCU) and described analog simulator adopt the mode communication of OPC.Simulation software reads and writes the value of OPC.Then OPC is issuing request of data PLC or from PLC request data.Then data are being passed to simulation software.
As follows in the communication embodiment of simulation software:
Configuration OPC: the communication configuring OPC in S7 project, arranges the communication configuration of remote access OPC in opc server;
Test OPC connects: in the OPC configured, add various types of variable, mainly adds the variable of M type (intermediate variable) and data block type in the present system.Communication between soft rear test OPC and PLC.When reading and write the value of PLC normally;
Add OPC variable: the communication test between the beautiful PLC of OPC well after, we add the data point of the M type required for simulated program and the data point of DB type inside OPC.The workload of this step is larger needs careful contrast S7 program point;
The communication of test OPC and emulation: create in LabView and be connected, read or write the data point inside a small amount of OPC.Make it normal to read or write PLC.This step test job needs the time to complete the stability of communication and test communication program;
Variable in read/write OPC: after the communication test success of LabView and OPC, creates the data point that emulation needs, is then mapped one by one by the ITEM of all variablees needed in simulation software and OPC in LabView.The variable created is for simulated program.
The primary control program of unit is exactly the main program of LCU for generator set.In main program, call each subroutine, unit is controlled.In simulation software, also to carry out the main program of corresponding LCU main program, then realize emulation in the program calling subsystems.The framework of the main program in simulation software mainly calls each subroutine.
The emulation of sequence program mainly realizes according to the program of LCU, in LCU, there is a display sequence program to perform the data block of step, simulation software goes to read the mark that sequence program performs step by OPC, when sequence program performs certain step program, the all conditions of current step is simulated by simulation software, reaches the object of test program with this.
The emulation of sequence step mainly contains: SFCSTART, BTBSTART, P->PC, S->SR, SR->G, G->GC, S->L, S->BS, P->G, S->LC, GC->S, PC->S, P->S, PC->P, GC->G, G->SR, SR->S, Shoutdown, fillingcontrol and fillingtrip.
Above the technological scheme that the utility model embodiment provides is described in detail, apply specific case herein to set forth the principle of the utility model embodiment and mode of execution, the explanation of above embodiment is only applicable to the principle helping to understand the utility model embodiment; Meanwhile, for one of ordinary skill in the art, according to the utility model embodiment, embodiment and application area all will change, and in sum, this description should not be construed as restriction of the present utility model.
Claims (6)
1. a pump-storage generator control program test system, is characterized in that comprising:
Local control unit (LCU), adopts entity programmable logic controller (PLC) (PLC) to download, the control program of operating unit;
Engineer station, in order to the work of the configuration and relevant controlling System's composition that complete application software;
Operator station, provides man machine operation interface, completes unit allocation program control, and show unit control flow, capital equipment run picture dynamically, each switch motion situation and major parameter situation of change in electric loop;
Analog simulator, complete the simulation of each sub-control system of unit, the simulation of feedback signal needed for unit sequence control process, forms the emulation of power plant's lower computer system together with the programmable logic controller (PLC) (PLC) of unit local control unit (LCU).
2. pump-storage generator control program test system as claimed in claim 1, is characterized in that:
Described programmable logic controller (PLC) (PLC) adopts Siemens S7-400 PLC, and described Siemens S7-400 PLC is configured with Siemens 414-5HPN/DPCPU and Siemens PS405 power supply 10A.
3. pump-storage generator control program test system as claimed in claim 2, is characterized in that:
Described Siemens S7-400 PLC deletes the remote I/O station in original hardware configuration, and the data block of adding DIM digital input module, digital output module, Analog input mModule, analog output module and mapping for numeral input (DI), numeral output (DO), analog input (AI), analog output (AO) on mainframe.
4. pump-storage generator control program test system as claimed in claim 1, is characterized in that:
Described sub-control system comprises machine unit speed regulating device system, excitation system, SFC system, technical water supply system, ball valve system, tail brake system.
5. pump-storage generator control program test system as claimed in claim 1, is characterized in that:
Described engineer station carries out communication by Ethernet and described local control unit (LCU), to modify to PLC program and to download; Described operator station also carries out communication by Ethernet and described local control unit (LCU), to carry out operational testing to the program of PLC; Described engineer station and described operator station Siemens's platform carry out communication, provide function software to realize described engineer station to described operator station.
6. pump-storage generator control program test system as claimed in claim 1, is characterized in that:
Described local control unit (LCU) and described analog simulator are by opc server communication.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179156A (en) * | 2015-09-18 | 2015-12-23 | 中国南方电网有限责任公司调峰调频发电公司 | Offline control program testing system and method of pump storage group |
| CN106249685A (en) * | 2016-08-26 | 2016-12-21 | 清远蓄能发电有限公司 | Pump-storage generator controls program full working scope Dynamic Simulation and Testing System and method |
| CN107121963A (en) * | 2016-02-25 | 2017-09-01 | 发那科株式会社 | Programmable controller and the system for possessing it |
| CN110471397A (en) * | 2019-08-23 | 2019-11-19 | 南方电网调峰调频发电有限公司 | A kind of emulation test system and method for the energy storage unit control flow that draws water |
-
2015
- 2015-09-18 CN CN201520727761.7U patent/CN204961152U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179156A (en) * | 2015-09-18 | 2015-12-23 | 中国南方电网有限责任公司调峰调频发电公司 | Offline control program testing system and method of pump storage group |
| CN105179156B (en) * | 2015-09-18 | 2018-08-28 | 中国南方电网有限责任公司调峰调频发电公司 | Pump-storage generator controls program off-line test system and method |
| CN107121963A (en) * | 2016-02-25 | 2017-09-01 | 发那科株式会社 | Programmable controller and the system for possessing it |
| CN107121963B (en) * | 2016-02-25 | 2021-04-02 | 发那科株式会社 | Programmable controller and system having the same |
| CN106249685A (en) * | 2016-08-26 | 2016-12-21 | 清远蓄能发电有限公司 | Pump-storage generator controls program full working scope Dynamic Simulation and Testing System and method |
| CN106249685B (en) * | 2016-08-26 | 2018-08-28 | 清远蓄能发电有限公司 | Pump-storage generator controls program full working scope Dynamic Simulation and Testing System and method |
| CN110471397A (en) * | 2019-08-23 | 2019-11-19 | 南方电网调峰调频发电有限公司 | A kind of emulation test system and method for the energy storage unit control flow that draws water |
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Effective date of registration: 20181102 Address after: 510630 room 2201, Longkou East Road, Tianhe District, Guangzhou, Guangdong, 2201 Patentee after: Southern power grid peak modulation FM Power Generation Co., Ltd. Address before: 510000 32, Longkou East Road, Tianhe District, Guangzhou, Guangdong. Patentee before: Peaking and Frequency Regulation Power Generation Company of China Southern Power Grid Co., Ltd. |