CN105137879A - Remote SCADA method and system for a distributed energy station - Google Patents
Remote SCADA method and system for a distributed energy station Download PDFInfo
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- CN105137879A CN105137879A CN201510555609.XA CN201510555609A CN105137879A CN 105137879 A CN105137879 A CN 105137879A CN 201510555609 A CN201510555609 A CN 201510555609A CN 105137879 A CN105137879 A CN 105137879A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
- G05B2219/14006—Safety, monitoring in general
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Abstract
The invention discloses a remote SCADA method and system for a distributed energy station. The method comprises steps of: enabling a remote SCADA server to receive data information of a combustion gas supply control subsystem, wherein the data information includes natural gas pressure intensity; determining whether the natural gas pressure intensity is more than or equal to a first threshold; if not, generating a first shutdown instruction in order to shut down the combustion gas supply control subsystem; if yes, when the pressure intensity is less than a second threshold, generating a supercharger start instruction in order to start a supercharger and when the pressure intensity is more than or equal to a second threshold, generating a valve open instruction and a start instruction in order to open the valve of the combustion gas supply control subsystem and start a gas turbine control subsystem respectively. The method generates the control instruction according to the data information of the combustion gas supply control subsystem, remotely controls the combustion gas supply control subsystem and the gas turbine control subsystem, and is simple and high efficient.
Description
Technical field
The present invention relates to remote control technology field, particularly relate to a kind of Remote SCADA method and system thereof of distributed busbar protection.
Background technology
Distributed energy is a kind of energy supply mode building user side in, can independent operating, also can be incorporated into the power networks, maximize with resource, environmental benefit the system determining mode and capacity, by user's various energy resources demand, and status of resource allocation carries out system combination optimization, adopting the novel energy system of demand reply formula design and modular arrangements, is the distributing energy-provision way relative to central energy supply.Distributed energy has that efficiency utilizes rationally, loss is little, pollutes less, flexible operation, the features such as system economy is good.
Distributed energy depends on state-of-the-art infotech, adopts Intellectualized monitoring, networking team control and remote control technology, realizes on-the-spot unmanned.Meanwhile, also depend on the following energy social service system based on ESCO, realize the specialization of operational management, to ensure the safe and reliable operation of each energy resource system.
Along with the development of distributed energy, the particularly development of ESCO and related industry, how to realize showing in real time energy source station parameters and analyzing by long-distance management system, and to carry out control be as required a very valued problem, and in prior art, generally control this subsystem according to the parameter of any subsystem of some energy source stations, can not according to the state modulator two or more subsystem of the contact between subsystem by wherein some subsystems.
Summary of the invention
The present invention proposes a kind of Remote SCADA method and system thereof of distributed busbar protection, according to the contact between two subsystems, can control this two subsystems according to the data message of one of them subsystem simultaneously.
For reaching this object, the present invention by the following technical solutions:
First aspect, a kind of Remote SCADA method of distributed busbar protection, comprises the following steps:
Remote SCADA server receives the data message of gas supply control subsystem, and it is strong that described data message comprises natural pressure;
Judge whether described rock gas pressure is more than or equal to first threshold;
If not, generate the first stop instruction, control gas supply control subsystem and shut down;
If, when detecting that described rock gas pressure is less than Second Threshold, generate and start supercharger instruction, start to control supercharger, when detecting that described natural pressure is more than or equal to by force Second Threshold, valve command and enabled instruction are opened in generation, control described gas supply control subsystem valve open and the startup of gas turbine control subsystem respectively.
Wherein, after described generation first stop instruction, also comprise, described Remote SCADA server sends air feed failure message;
Described data message also comprises supercharger rear end pressure and natural gas leaking concentration;
Described generation also comprises after opening valve command and enabled instruction:
Judge whether described supercharger rear end pressure is less than or equal to the 3rd threshold value, if, generate described first stop instruction and the second stop instruction, control described gas supply control subsystem respectively and shut down and the shutdown of described gas turbine control subsystem, send supercharger failure message; With
Described data message also comprises natural gas leaking concentration; judge whether described natural gas leaking concentration is more than or equal to the 4th threshold value; if; generate described first stop instruction and the second stop instruction; control described gas supply control subsystem respectively to shut down and the shutdown of described gas turbine control subsystem, send natural gas leaking failure message.
Wherein, described Remote SCADA method also comprises:
Described Remote SCADA server receives the data message of generator control subsystem, and described data message comprises the running status of output voltage and generator;
Judge whether described output voltage is more than or equal to the 5th threshold value, if so, generatrix reclosing command, control the described bus for distribution control subsystem and close a floodgate;
Judge that whether the running status of described generator is normal, if not, generate the 3rd stop instruction and bus open command, control described generator control subsystem respectively and shut down and supply the bus of distribution control subsystem to disconnect, and send generator failure information.
Wherein, described Remote SCADA method also comprises:
Described Remote SCADA server receives the data message of hydro-thermal management control subsystem;
When detecting that described data message exceeds normal range of operation, generating the 4th stop instruction, controlling described hydro-thermal management control subsystem and shutting down, sending the cooling system failure information of described hydro-thermal management control subsystem.
Wherein, described generation first is shut down and is referred to, controls the shutdown of gas supply control subsystem and is specially:
Described Remote SCADA server generates the first stop instruction;
Described first stop instruction is sent to described gas supply control subsystem by on-the-spot SCADA active station by described Remote SCADA server;
Described gas supply control subsystem performs described first stop instruction;
Described generation starts supercharger instruction, controls supercharger startup and is specially:
Described Remote SCADA server generates and starts supercharger instruction;
The instruction of described startup supercharger is sent to described gas supply control subsystem by on-the-spot SCADA active station by described Remote SCADA server;
Described gas supply control subsystem performs the instruction of described startup supercharger;
Valve command and enabled instruction are opened in described generation, control described gas supply control subsystem valve open and gas turbine control subsystem respectively and start and be specially:
Described Remote SCADA server generates and opens valve command and enabled instruction;
Described Remote SCADA server opens valve command and enabled instruction is sent to described gas supply control subsystem and gas turbine control subsystem respectively by on-the-spot SCADA active station by described;
Valve command and enabled instruction is opened described in described gas supply control subsystem and gas turbine control subsystem perform respectively;
Described first stop instruction of described generation and the second stop instruction, control respectively described gas supply control subsystem shut down and described gas turbine control subsystem shutdown be specially:
Described Remote SCADA server generates the first stop instruction and the second stop instruction;
Described second stop instruction is sent to described gas supply control subsystem and gas turbine control subsystem by on-the-spot SCADA active station by described Remote SCADA server;
Described gas supply control subsystem and gas turbine control subsystem perform described first stop instruction and the second stop instruction respectively;
Described generatrix reclosing command, controls the described bus for distribution control subsystem combined floodgate and is specially:
Described Remote SCADA server generatrix reclosing command;
Described bus reclosing command is sent to described for distribution control subsystem by on-the-spot SCADA active station by described Remote SCADA server;
The described distribution control subsystem that supplies performs described bus reclosing command;
Described generation the 3rd stop instruction and bus open command, control described generator control subsystem respectively and shut down and supply the disconnection of the bus of distribution control subsystem to be specially:
Described Remote SCADA server generatrix reclosing command the 3rd stop instruction and bus open command;
Described 3rd stop instruction and bus open command are sent to described generator control subsystem and confession distribution control subsystem by on-the-spot SCADA active station by described Remote SCADA server respectively;
Described generator control subsystem and confession distribution control subsystem perform described 3rd stop instruction and bus open command respectively;
Described generation the 4th stop instruction, controls the shutdown of described hydro-thermal management control subsystem and is specially:
Described Remote SCADA server generates the 4th stop instruction;
Described 4th stop instruction is sent to described hydro-thermal management control subsystem by on-the-spot SCADA active station by described Remote SCADA server;
Described hydro-thermal management control subsystem performs described 4th stop instruction.
Second aspect, a kind of Remote SCADA system of distributed busbar protection, comprises control end, and described control end comprises the first receiving element, the first generation unit;
Described first receiving element is for receiving the data message of gas supply control subsystem, and it is strong that described data message comprises natural pressure;
Described first generation unit is for judging whether described rock gas pressure is more than or equal to first threshold; if not; generate the first stop instruction; control gas supply control subsystem to shut down; if; when detecting that described rock gas pressure is less than Second Threshold; generate and start supercharger instruction; control supercharger starts; when detecting that described natural pressure is more than or equal to by force Second Threshold; valve command and enabled instruction are opened in generation, control described gas supply control subsystem valve open and the startup of gas turbine control subsystem respectively.
Wherein, described data message also comprises supercharger rear end pressure and/or natural gas leaking concentration;
Described first generation unit also for:
Judge whether described supercharger rear end pressure is less than or equal to the 3rd threshold value, if, generate described first stop instruction and the second stop instruction, control described gas supply control subsystem respectively and shut down and the shutdown of described gas turbine control subsystem, and send supercharger failure message; And/or
Judge whether described natural gas leaking concentration is more than or equal to the 4th threshold value, if, generate described first stop instruction and the second stop instruction, control described gas supply control subsystem respectively and shut down and the shutdown of described gas turbine control subsystem, and send natural gas leaking failure message;
Described control end also comprises the first alarm unit and the second alarm unit;
Described first alarm unit is used for giving the alarm after described first generation unit generates the first stop instruction, sends air feed failure message;
Described second alarm unit is used for giving the alarm after described first generation unit generates the first stop instruction and the second stop instruction, sends supercharger failure message and natural gas leaking failure message;
Wherein, described control end also comprises the second receiving element, the second generation unit and the 3rd alarm unit;
Described second receiving element is for receiving the data message of generator control subsystem, and described data message comprises the running status of output voltage and generator;
Described second generation unit is used for:
Judge whether described output voltage is more than or equal to the 5th threshold value, if so, generatrix reclosing command, control the described bus for distribution control subsystem and close a floodgate;
Judge whether the running status of described generator normally works, if not, generate the 3rd stop instruction and bus open command, control described generator control subsystem respectively and shut down and supply the bus of distribution control subsystem to disconnect;
Described 3rd alarm unit is used for sending generator failure information after described second generation unit generates described 3rd stop instruction and bus open command.
Wherein, described control end also comprises the 3rd receiving element, the 3rd generation unit and the 4th alarm unit,
Described 3rd receiving element receives the data message of hydro-thermal management control subsystem for receiving described Remote SCADA server;
Described 3rd generation unit is used for when detecting that described data message exceeds normal range of operation, generates the 4th stop instruction, controls described hydro-thermal management control subsystem and shuts down;
Described 4th alarm unit is used for the cooling system failure information sending described hydro-thermal management control subsystem after described 3rd generation unit generates described 4th stop instruction.
Wherein, described Remote SCADA system also comprises transmitting terminal, and described transmitting terminal comprises the first transmitting element, the second transmitting element, the 3rd transmitting element, the 4th transmitting element and the 5th transmitting element;
Described first transmitting element is used for described first stop instruction, starts supercharger instruction or open valve command and be forwarded to described gas supply control subsystem;
Described second transmitting element is used for described enabled instruction or the second stop instruction to be forwarded to described gas turbine control subsystem;
Described 3rd transmitting element is described for distribution control subsystem for described bus reclosing command or bus open command being forwarded to;
Described 4th transmitting element is used for described 3rd stop instruction to be forwarded to described generator control subsystem;
Described 5th transmitting element is used for described 4th stop instruction and is forwarded to described hydro-thermal management control subsystem.
The present invention receives the data message of gas supply control subsystem by Remote SCADA server, and it is strong that described data message comprises natural pressure; Judge whether described rock gas pressure is more than or equal to first threshold; If not, generate the first stop instruction, shut down to control gas supply control subsystem; If, when detecting that described rock gas pressure is less than Second Threshold, generate and start supercharger instruction, start to control supercharger, when detecting that described natural pressure is more than or equal to by force Second Threshold, valve command and enabled instruction are opened in generation, to control described gas supply control subsystem valve open and the startup of gas turbine control subsystem respectively.Remote SCADA server produces steering order according to the data message of gas supply control subsystem, achieves the Long-distance Control simultaneously to gas supply control subsystem and gas turbine control subsystem, reaches the efficient object controlled.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of the Remote SCADA embodiment of the method one of a kind of distributed busbar protection provided by the invention.
Fig. 2 is the method flow diagram of the Remote SCADA embodiment of the method two of a kind of distributed busbar protection provided by the invention.
Fig. 3 a is the method flow diagram of a kind of optimal way of the embodiment of the present invention two.
Fig. 3 b is the method flow diagram of the another kind of optimal way of the embodiment of the present invention two.
Fig. 3 c is the method flow diagram of the another kind of optimal way of the embodiment of the present invention two.
Fig. 3 d is the method flow diagram of the another kind of optimal way of the embodiment of the present invention two.
Fig. 4 is the method flow diagram of the Remote SCADA embodiment of the method three of a kind of distributed busbar protection provided by the invention.
Fig. 5 a is the method flow diagram of a kind of optimal way of the embodiment of the present invention three.
Fig. 5 b is the method flow diagram of the another kind of optimal way of the embodiment of the present invention three.
Fig. 6 is the method flow diagram of the Remote SCADA embodiment of the method three of a kind of distributed busbar protection provided by the invention.
Fig. 7 is the method flow diagram of the another kind of optimal way of the embodiment of the present invention three.
Fig. 8 is the functional block diagram of the Remote SCADA system embodiment one of a kind of distributed busbar protection provided by the invention.
Fig. 9 is the functional block diagram of the Remote SCADA system embodiment two of a kind of distributed busbar protection provided by the invention.
Figure 10 is the structural representation that the embodiment two of the Remote SCADA system of a kind of distributed busbar protection of the present invention is applied to distributed busbar protection.
Embodiment
Below in conjunction with Fig. 1 to Fig. 8, further illustrate technical scheme of the present invention by embodiment.
Embodiment one
With reference to figure 1, a kind of Remote SCADA method of distributed busbar protection, comprises steps A:
A11: Remote SCADA server receives the data message of gas supply control subsystem, and it is strong that described data message comprises natural pressure.
A12: judge whether described rock gas pressure is more than or equal to first threshold.
A13: if not, generates the first stop instruction, controls gas supply control subsystem and shuts down.
A14: if, when detecting that described rock gas pressure is less than Second Threshold, generate and start supercharger instruction, start to control supercharger, when detecting that described natural pressure is more than or equal to by force Second Threshold, valve command and enabled instruction are opened in generation, control described gas supply control subsystem valve open and the startup of gas turbine control subsystem respectively.
In work, according to the judged result to steps A 12, Remote SCADA server is selected one to steps A 13 and A14 and is carried out.
Preferably, described first threshold is 0.8MPa, and Second Threshold is 1.48MPa.The normal pressure of rock gas is 0.8MPa, and the pressure that rock gas enters gas turbine requires as 1.48MPa, and therefore rock gas needs supercharging just can enter gas turbine control subsystem.If detect, the pressure of rock gas is less than 0.8MPa; then gas supply control subsystem breaks down; cannot air feed; when now Remote SCADA server generates the first stop instruction; gas supply control subsystem can be shut down according to this steering order, now, because gas supply control subsystem is shut down; i.e. gas supply control subsystem not air feed, gas turbine control subsystem can not start work.When detecting that the pressure of rock gas is more than or equal to 0.8MPa and is less than 1.48MPa, start supercharger, to natural gas boosting, when rock gas pressure reaches 1.48MPa, valve command and enabled instruction are opened in generation, open the valve of natural gas tube, start gas turbine control subsystem simultaneously, rock gas enters gas turbine control subsystem, and gas turbine control subsystem normally works.
As the another kind of optimal way of the present embodiment, first threshold and Second Threshold can be other values, those skilled in the art can according to different gas supply control subsystem models and gas turbine control subsystem model determination first threshold and Second Threshold, and the present invention does not limit this.
It should be noted that, after gas turbine control subsystem performs described enabled instruction, its built-in system can judge that whether the running parameter of himself is eligible, and the gas turbine control subsystem when running parameter does not meet condition of work, this can ensure the security of system.Described running parameter comprises set state; Unit admission pressure, flow; Unit internal temperature etc., when gas turbine control subsystem works, these parameters can be sent to Remote SCADA server as a part for distributed busbar protection data message, and these data messages are presented on operation supervise and control interface by Remote SCADA server, for operating personnel's monitoring and controlling.
The Remote SCADA method of a kind of distributed busbar protection provided by the invention, data message according to gas supply control subsystem produces steering order, achieve the Long-distance Control simultaneously to gas supply control subsystem and gas turbine control subsystem, method is simple, efficient.
Embodiment two
Referring to figs. 2 and 3, the present embodiment increases by two steps A 15, A16 after the steps A 14 of embodiment one, and the detail content of the not detailed description of the method in the present embodiment, can with reference to above-described embodiment.
A15: judge whether described supercharger rear end pressure is less than or equal to the 3rd threshold value; if; generate described first stop instruction and the second stop instruction, control described gas supply control subsystem respectively and shut down and the shutdown of described gas turbine control subsystem, send supercharger failure message.
Described 3rd threshold value is 1.3MPa, the rear end pressure of supercharger is less than 1.3MPa and illustrates that supercharger breaks down, gas supply control subsystem cannot normally work, and now Remote SCADA server generates the first stop instruction to control the shutdown of gas supply control subsystem; Because gas supply control subsystem is shut down, namely not to gas turbine control subsystem air feed, now gas turbine control subsystem also must be shut down, and shuts down to control gas turbine control subsystem so Remote SCADA server also generates the second stop instruction simultaneously; This control method can Timeliness coverage fault, and corresponding system can be made to shut down in time, ensure that the security of distributed energy resource system fully.
A16: judge whether described natural gas leaking concentration is more than or equal to the 4th threshold value; if; generate described first stop instruction and the second stop instruction, control described gas supply control subsystem respectively and shut down and the shutdown of described gas turbine control subsystem, send natural gas leaking failure message.
Described 4th threshold value is 1000ppm, natural gas leaking concentration is more than or equal to 1000ppm and illustrates that rock gas leaks, the gas supply control subsystem relevant to rock gas and gas supply control subsystem must be shut down, now Remote SCADA server generates the first stop instruction to control the shutdown of gas supply control subsystem, and Remote SCADA server also generates the second stop instruction simultaneously and shuts down to control gas turbine control subsystem; This control method can Timeliness coverage fault, and corresponding system can be made to shut down in time, ensure that the security of distributed energy resource system fully.
As the another kind of optimal way of the present embodiment, the 3rd threshold value and the 4th threshold value can be other values, and those skilled in the art can determine the 3rd threshold value and the 4th threshold value according to different gas turbine control subsystem models, and the present invention does not limit this.
It should be noted that, steps A 15 and steps A 16 without fixing sequencing, the first execution satisfied condition.
Preferably, steps A 13 comprises:
A131: if not, Remote SCADA server generates the first stop instruction, sends air feed failure message.
A132: described first stop instruction is sent to described gas supply control subsystem by on-the-spot SCADA active station by described Remote SCADA server.
A133: described gas supply control subsystem performs described first stop instruction.
When system boot, the data message of himself is sent to on-the-spot SCADA active station by gas supply control subsystem, the data message of gas supply control subsystem is sent to Remote SCADA server by on-the-spot SCADA active station again, and Remote SCADA server controls gas supply control subsystem according to the data message received.
Preferably, steps A 14 comprises:
A141: if so, when detecting that described rock gas pressure is less than Second Threshold, generates and starts supercharger instruction.
A142: the instruction of described startup supercharger is sent to described gas supply control subsystem by on-the-spot SCADA active station by described Remote SCADA server.
A143: described gas supply control subsystem performs the instruction of described startup supercharger.Now supercharger starts and pressurizes to rock gas.
A144: when detecting that described natural pressure is more than or equal to by force Second Threshold, generates and opens valve command and enabled instruction.
A145: described Remote SCADA server opens valve command and enabled instruction is sent to described gas supply control subsystem and gas turbine control subsystem respectively by on-the-spot SCADA active station by described.
A146: open valve command and enabled instruction described in described gas supply control subsystem and gas turbine control subsystem perform respectively.
In steps A 14, Remote SCADA server controls gas supply control subsystem and gas turbine control subsystem according to the data message received simultaneously.It should be noted that, after gas turbine control subsystem performs enabled instruction, when the data message of its built-in system monitoring self does not reach the condition of normal work, gas turbine control subsystem meeting auto stop, further ensures the security of system works.
Preferably, steps A 15 comprises:
A151: judge whether described supercharger rear end pressure is less than or equal to the 3rd threshold value, if generate described first stop instruction and the second stop instruction, sends supercharger failure message.
A152: described second stop instruction is sent to described gas supply control subsystem and gas turbine control subsystem by on-the-spot SCADA active station by described Remote SCADA server.
A153: described gas supply control subsystem and gas turbine control subsystem perform described first stop instruction and the second stop instruction respectively.
In steps A 15; Remote SCADA server controls gas supply control subsystem and gas turbine control subsystem according to the data message received simultaneously, can Timeliness coverage fault, and when a system malfunctions; relevant system also can be shut down, and ensure that the security of system works.
Preferably, steps A 16 comprises following step:
A161: judge whether described natural gas leaking concentration is more than or equal to the 4th threshold value, if so, generate described first stop instruction and the second stop instruction, send natural gas leaking failure message.
A162: described second stop instruction is sent to described gas supply control subsystem and gas turbine control subsystem by on-the-spot SCADA active station by described Remote SCADA server.
A163: described gas supply control subsystem and gas turbine control subsystem perform described first stop instruction and the second stop instruction respectively.
In steps A 16; Remote SCADA server controls gas supply control subsystem and gas turbine control subsystem according to the data message received simultaneously, can Timeliness coverage fault, and when a system malfunctions; relevant system also can be shut down, and ensure that the security of system works.
Remote SCADA server produces steering order according to the data message of gas supply control subsystem, achieves the Long-distance Control simultaneously to gas supply control subsystem and gas turbine control subsystem, reaches the efficient object controlled; And ensure that the security of distributed energy resource system fully.
Embodiment three
With reference to figure 4 to Fig. 7, the present embodiment increases step B and step C on the basis of embodiment two:
B11: Remote SCADA server receives the data message of generator control subsystem, and described data message comprises the running status of output voltage and generator.
B12: judge whether described output voltage is more than or equal to the 5th threshold value, if so, generatrix reclosing command, controls the described bus for distribution control subsystem and closes a floodgate.
5th threshold value is 10.5kv, only has output voltage to reach 10.5kv and could meet the requirement of powering to confession distribution control subsystem.When generator output state is normal, output voltage reaches 10.5kv, and now Remote SCADA server generatrix reclosing command closes a floodgate to control the described bus for distribution control subsystem; If generator output state is abnormal, output voltage does not reach 10.5kv, illustrates that generator control subsystem breaks down; In addition, do not have the power supply of generator control subsystem, also cannot normally work for distribution control subsystem, therefore, Remote SCADA server can control generator control subsystem and shut down for distribution control subsystem simultaneously.This control method can Timeliness coverage fault, and corresponding system can be made to shut down in time, ensure that the security of distributed energy resource system fully.
As the another kind of optimal way of the present embodiment, the 5th threshold value can be other values, and those skilled in the art can determine the 5th threshold value according to different generator control subsystem models with for distribution control subsystem model, and the present invention does not limit this.
B13: judge whether the running status of described generator normally works; if not; generate the 3rd stop instruction and bus open command, control described generator control subsystem respectively and shut down and supply the bus of distribution control subsystem to disconnect, and send generator failure information.
The running status of the generator of generator control subsystem comprises busbar voltage, bus state, output voltage, distribution voltage, distribution electric current, power status.Backup system distribution controls mainly to comprise for backup system provides 220V and 380V AC distribution, detects the voltage etc. of distribution.
In generator control subsystem work process, the running status of generator can be sent to Remote SCADA server as the part of distributed energy station data information by generator control subsystem, these data messages are shown to operation supervise and control interface by Remote SCADA server, for operating personnel's monitoring and controlling.
The running status of generator is abnormal, illustrates that generator control subsystem breaks down, and cannot power to for distribution control subsystem, and therefore generator control subsystem is shut down and must be shut down for distribution control subsystem simultaneously; Now Remote SCADA server can generate the 3rd stop instruction to control the shutdown of described generator control subsystem; go back generatrix open command to disconnect with the bus controlled for distribution control subsystem simultaneously; and give the alarm; prompting generator failure, ensure that the security of distributed energy resource system fully.
C11: Remote SCADA server receives the data message of hydro-thermal management control subsystem.Described data message is compressor cooling water water inlet temperature, lubricating oil cooling water intake temperature, compressor cooling water outlet temperature, lubricating oil cooling water outlet temperature, compressor cooling water water inlet flow, compressor cooling water water delivering orifice flow, lubricating oil cooling water intake flow, lubricating oil cooling water outlet flow, compressor cooling water water inlet pressure, compressor cooling water water delivering orifice pressure, lubricating oil cooling water intake pressure or lubricating oil cooling water outlet pressure,
C12: generate the 4th stop instruction when detecting that described data message exceedes normal range of operation, controls described hydro-thermal management control subsystem and shuts down, send the cooling system failure information of described hydro-thermal management control subsystem.
The parameter when cooling system that described data message is hydro-thermal management control subsystem normally works.When cooling system normally works, the standard value of compressor cooling water water inlet temperature and lubricating oil cooling water intake temperature is 32 DEG C; The standard value of compressor cooling water outlet temperature and lubricating oil cooling water outlet temperature is 37.5 DEG C; The standard value of compressor cooling water water inlet flow, compressor cooling water water delivering orifice flow, lubricating oil cooling water intake flow and lubricating oil cooling water outlet flow is 150t/h; Compressor cooling water water inlet pressure, compressor cooling water water delivering orifice pressure, lubricating oil cooling water intake pressure or lubricating oil cooling water outlet pressure are 0.1MPa.During cooling system work the numerical bias of above-mentioned data message exceed ± 5% for exceeding normal range of operation; now Remote SCADA server generates the 4th stop instruction to control the shutdown of described hydro-thermal management control subsystem; and give the alarm, prompting cooling system failure.This control method can the Timeliness coverage system failure, ensure that the security of distributed energy resource system fully.
As the another kind of optimal way of the present embodiment, parameters when cooling system normally works can be other values, and those skilled in the art can according to the numerical value of different cooling system model determination parameters, and the present invention does not limit this.
Preferably, step B12 is specially:
B121: described Remote SCADA server judges whether described output voltage is more than or equal to the 5th threshold value, if so, generatrix reclosing command.
B122: described bus reclosing command is sent to described for distribution control subsystem by on-the-spot SCADA active station by described Remote SCADA server.
B123: the described distribution control subsystem that supplies performs described bus reclosing command.
Preferably, step B13 is specially:
B131: described Remote SCADA server judges whether the running status of described generator normally works, if not, generates the 3rd stop instruction and bus open command, sends generator failure information.
B132: described 3rd stop instruction and bus open command are sent to described generator control subsystem and confession distribution control subsystem by on-the-spot SCADA active station by described Remote SCADA server respectively;
B133: described generator control subsystem and confession distribution control subsystem perform described 3rd stop instruction and bus open command respectively.
Step B13 controls generator control subsystem simultaneously and quits work for distribution control subsystem when judging that the running status of generator is abnormal, and prompting generator failure, make operating personnel's Timeliness coverage fault and then maintenance, ensure that the security of distributed energy resource system fully.
Preferably, step C12 is specially:
C121: when described Remote SCADA server detects that described data message generates the 4th stop instruction when exceeding normal range of operation, send cooling system failure information.
C122: described 4th stop instruction is sent to described hydro-thermal management control subsystem by on-the-spot SCADA active station by described Remote SCADA server;
C123: described hydro-thermal management control subsystem performs described 4th stop instruction.
It should be noted that, in the present embodiment, steps A, step B and step C there is no sequencing, and three can carry out simultaneously.
Remote SCADA server carries out Long-distance Control according to the data message of distributed busbar protection to distributed busbar protection, and the method is simple, efficient; And send corresponding failure message in time when system malfunctions, ensure that the security of distributed energy resource system fully.
Embodiment four
With reference to figure 8, a kind of Remote SCADA system of distributed busbar protection, comprises control end 100, and described control end comprises the first receiving element 101, first generation unit 102.The carrier 100 of control end is Remote SCADA server 1.
Described first receiving element 101 is for receiving the data message of gas supply control subsystem 3, and it is strong that described data message comprises natural pressure;
Described first generation unit 102 is for judging whether described rock gas pressure is more than or equal to first threshold; if not; generate the first stop instruction; control gas supply control subsystem 3 to shut down; if; when detecting that described rock gas pressure is less than Second Threshold; generate and start supercharger instruction; control supercharger starts; when detecting that described natural pressure is more than or equal to by force Second Threshold; valve command and enabled instruction are opened in generation, control described gas supply control subsystem 3 valve open respectively and gas turbine control subsystem 4 starts.
The Remote SCADA system of a kind of distributed busbar protection provided by the invention, the data message according to gas supply control subsystem 3 produces steering order, achieves the Long-distance Control simultaneously to gas supply control subsystem 3 and gas turbine control subsystem 4.
Embodiment five
With reference to figure 9 and Figure 10.
A kind of Remote SCADA system of distributed busbar protection, comprise control end 100 and transmitting terminal 200, described control end comprises the first receiving element 101, first generation unit 102, first alarm unit 103, second alarm unit 104, second receiving element 105, second generation unit 106 and the 3rd alarm unit 107, the 3rd receiving element 108, the 3rd generation unit 109 and the 4th alarm unit 110; Described transmitting terminal 200 comprises the first transmitting element 201, second transmitting element 202, the 3rd transmitting element 203, the 4th transmitting element 204 and the 5th transmitting element 205.
First receiving element 101 is for receiving the data message of gas supply control subsystem 3, and it is strong that described data message comprises natural pressure;
First generation unit 102 is for judging whether described rock gas pressure is more than or equal to first threshold; if not; generate the first stop instruction; control gas supply control subsystem 3 to shut down; if; when detecting that described rock gas pressure is less than Second Threshold; generate and start supercharger instruction; control supercharger starts; when detecting that described natural pressure is more than or equal to by force Second Threshold; valve command and enabled instruction are opened in generation, control described gas supply control subsystem 3 valve open respectively and gas turbine control subsystem 4 starts.
Preferably, the first receiving element 101 is also for receiving supercharger rear end pressure and the natural gas leaking concentration of gas supply control subsystem 3;
Preferably, the first generation unit 102 also for:
Judge whether described supercharger rear end pressure is less than or equal to the 3rd threshold value, if, generate described first stop instruction and the second stop instruction, control respectively described gas supply control subsystem 3 shut down and described gas turbine control subsystem 4 shut down, send supercharger failure message; Judge whether described natural gas leaking concentration is more than or equal to the 4th threshold value; if; generate described first stop instruction and the second stop instruction, control respectively described gas supply control subsystem 3 shut down and described gas turbine control subsystem 4 shut down, send natural gas leaking failure message.
First alarm unit 103 gives the alarm after generating the first stop instruction when described first generation unit, sends air feed failure message.
Second alarm unit 104, for giving the alarm after described first generation unit generates the first stop instruction and the second stop instruction, sends supercharger failure message and natural gas leaking failure message.
Second receiving element 105 is for receiving the data message of generator control subsystem 5, and described data message comprises the running status of output voltage and generator.
Second generation unit 106 for: judge whether described output voltage is more than or equal to the 5th threshold value, if so, generatrix reclosing command, control the described bus for distribution control subsystem 6 and close a floodgate; Judge whether the running status of described generator normally works, if not, generate the 3rd stop instruction and bus open command, control described generator control subsystem 5 respectively and shut down and supply the bus of distribution control subsystem 6 to disconnect.
3rd alarm unit 107 for sending generator failure information after described second generation unit generates described 3rd stop instruction and bus open command.
3rd receiving element 108 is for receiving the data message of hydro-thermal management control subsystem 7.
3rd generation unit 109, for when detecting that described data message exceeds normal range of operation, generating the 4th stop instruction, controlling described hydro-thermal management control subsystem 7 and shut down.
4th alarm unit 110 sends described cooling system failure information after claiming described 4th stop instruction of unit generation when the described 3rd.
First transmitting element 201 for by described first stop instruction, start supercharger instruction or open valve command and be forwarded to described gas supply control subsystem 3;
Second transmitting element 202 is for being forwarded to described gas turbine control subsystem 4 by described enabled instruction or the second stop instruction;
3rd transmitting element 203 is described for distribution control subsystem 6 for described bus reclosing command or bus open command being forwarded to;
4th transmitting element 204 is for being forwarded to described generator control subsystem 5 by described 3rd stop instruction;
5th transmitting element 205 is forwarded to described hydro-thermal management control subsystem 7 for described 4th stop instruction.
Preferably, control end 100 also comprises the first monitoring interface unit, all data messages that control end 100 receives by the first monitoring interface unit, the steering order of generation and failure message are presented on the first monitoring interface, for operating personnel, monitoring and controlling is carried out to distributed busbar protection, wherein, data message is graphical.
Preferably, transmitting terminal 200 also comprises receiving element, and receiving element receives the data message of distributed busbar protection.
Preferably, transmitting terminal 200 also comprises the second monitoring interface unit, and all data messages received, steering order are presented on the second monitoring interface by the second monitoring interface unit, and operating personnel also can pass through the second monitoring interface sending controling instruction.
Preferably, transmitting terminal 200 also comprises the 5th alarm unit, and the 5th alarm unit sends the failure message of distributed busbar protection.
Control end 100 and transmitting terminal 200 all carry out program design based on LabVIEW software and obtain, and the carrier of control end 100 is Remote SCADA server 1, and the carrier of transmitting terminal 200 is on-the-spot SCADA active station 2.
When distributed busbar protection breaks down, on-the-spot SCADA active station 2 and Remote SCADA server 1 all can send failure message and warning, if belong to the minor failure of self recovery, on-the-spot SCADA active station 2 can carry out self diagnosis, selfreparing, and remove warning; If occur cannot self-healing catastrophic failure time, system has indicating fault and warning, and carries out automatic safe and close energy source station system, and record trouble information.
On-the-spot SCADA active station 2 is connected by network with Remote SCADA server 1, and the gas supply control subsystem 3 of on-the-spot SCADA active station 2 and distributed busbar protection, gas turbine control subsystem 4, generator control subsystem 5, confession distribution control subsystem 6 and hydro-thermal management control subsystem 7 are connected by Profibus bus.
Remote SCADA server 1 is connected with information delivery server 8 by industrial gateway, and Remote SCADA server 1 is write the form of database and information delivery server 8 by network and carried out unidirectional data and transmit, and ensures the security of data further.
Remote SCADA server 1 can communicate with multiple distributed energy, thus can the multiple distributed busbar protection of monitoring and controlling.
Mobile phone terminal 10 and/or common computer terminal 9 can access the monitoring interface of energy source station, so that visitor can understand the running status of distributed busbar protection, but mobile phone terminal 10 and/or common computer terminal 9 do not have the control authority to distributed busbar protection, to ensure the data security of distributed busbar protection.
The present invention produces steering order according to the data message of gas supply control subsystem 3, achieves the Long-distance Control simultaneously to gas supply control subsystem 3 and gas turbine control subsystem 4; Data message according to generator control subsystem 5 produces steering order, achieves the Long-distance Control shutting down and supply simultaneously distribution control subsystem 6 to generator control subsystem 5; And send corresponding failure message in time when distributed busbar protection breaks down, ensure that the security of distributed energy resource system fully.
Claims (10)
1. a Remote SCADA method for distributed busbar protection, is characterized in that, comprising:
Remote SCADA server receives the data message of gas supply control subsystem, and it is strong that described data message comprises natural pressure;
Judge whether described rock gas pressure is more than or equal to first threshold;
If not, generate the first stop instruction, control gas supply control subsystem and shut down;
If, when detecting that described rock gas pressure is less than Second Threshold, generate and start supercharger instruction, start to control supercharger, when detecting that described natural pressure is more than or equal to by force Second Threshold, valve command and enabled instruction are opened in generation, control described gas supply control subsystem valve open and the startup of gas turbine control subsystem respectively.
2. Remote SCADA method as claimed in claim 1, it is characterized in that, after described generation first stop instruction, also comprise, described Remote SCADA server sends air feed failure message;
Described data message also comprises supercharger rear end pressure and natural gas leaking concentration;
Described generation also comprises after opening valve command and enabled instruction:
Described data message also comprises supercharger rear end pressure, judge whether described supercharger rear end pressure is less than or equal to the 3rd threshold value, if, generate described first stop instruction and the second stop instruction, control described gas supply control subsystem respectively to shut down and the shutdown of described gas turbine control subsystem, send supercharger failure message; With
Described data message also comprises natural gas leaking concentration; judge whether described natural gas leaking concentration is more than or equal to the 4th threshold value; if; generate described first stop instruction and the second stop instruction; control described gas supply control subsystem respectively to shut down and the shutdown of described gas turbine control subsystem, send natural gas leaking failure message.
3. Remote SCADA method as claimed in claim 2, is characterized in that, also comprise:
Described Remote SCADA server receives the data message of generator control subsystem, and described data message comprises the running status of output voltage and generator;
Judge whether described output voltage is more than or equal to the 5th threshold value, if so, generatrix reclosing command, control the described bus for distribution control subsystem and close a floodgate;
Judge that whether the running status of described generator is normal, if not, generate the 3rd stop instruction and bus open command, control described generator control subsystem respectively and shut down and supply the bus of distribution control subsystem to disconnect, and send generator failure information.
4. Remote SCADA method as claimed in claim 3, is characterized in that, also comprise:
Described Remote SCADA server receives the data message of hydro-thermal management control subsystem;
When detecting that described data message exceeds normal range of operation, generating the 4th stop instruction, controlling described hydro-thermal management control subsystem and shutting down, sending the cooling system failure information of described hydro-thermal management control subsystem.
5. Remote SCADA method as claimed in claim 4, is characterized in that, described generation first stop instruction, controls the shutdown of gas supply control subsystem and is specially:
Described Remote SCADA server generates the first stop instruction;
Described first stop instruction is sent to described gas supply control subsystem by on-the-spot SCADA active station by described Remote SCADA server;
Described gas supply control subsystem performs described first stop instruction;
Described generation starts supercharger instruction, controls supercharger and starts, be specially:
Described Remote SCADA server generates and starts supercharger instruction;
The instruction of described startup supercharger is sent to described gas supply control subsystem by on-the-spot SADA active station by described Remote SCADA server;
Described gas supply control subsystem performs the instruction of described startup supercharger;
Valve command and enabled instruction are opened in described generation, control described gas supply control subsystem valve open and the startup of gas turbine control subsystem respectively, are specially:
Described Remote SCADA server generates and opens valve command and enabled instruction;
Described Remote SCADA server opens valve command and enabled instruction is sent to described gas supply control subsystem and gas turbine control subsystem respectively by on-the-spot SADA active station by described;
Valve command and enabled instruction is opened described in described gas supply control subsystem and gas turbine control subsystem perform respectively;
Described first stop instruction of described generation and the second stop instruction, control described gas supply control subsystem respectively and shut down and the shutdown of described gas turbine control subsystem, be specially:
Described Remote SCADA server generates the first stop instruction and the second stop instruction;
Described second stop instruction is sent to described gas supply control subsystem and gas turbine control subsystem by on-the-spot SCADA active station by described Remote SCADA server;
Described gas supply control subsystem and gas turbine control subsystem perform described first stop instruction and the second stop instruction respectively;
Described generatrix reclosing command, controls the described bus for distribution control subsystem and closes a floodgate, be specially:
Described Remote SCADA server generatrix reclosing command;
Described bus reclosing command is sent to described for distribution control subsystem by on-the-spot SCADA active station by described Remote SCADA server;
The described distribution control subsystem that supplies performs described bus reclosing command;
Described generation the 3rd stop instruction and bus open command, control described generator control subsystem respectively and shut down and supply the bus of distribution control subsystem to disconnect, be specially:
Described Remote SCADA server generatrix reclosing command the 3rd stop instruction and bus open command;
Described 3rd stop instruction and bus open command are sent to described generator control subsystem and confession distribution control subsystem by on-the-spot SCADA active station by described Remote SCADA server respectively;
Described generator control subsystem and confession distribution control subsystem perform described 3rd stop instruction and bus open command respectively;
Described generation the 4th stop instruction, controls described hydro-thermal management control subsystem and shuts down, be specially:
Described Remote SCADA server generates the 4th stop instruction;
Described 4th stop instruction is sent to described hydro-thermal management control subsystem by on-the-spot SCADA active station by described Remote SCADA server;
Described hydro-thermal management control subsystem performs described 4th stop instruction.
6. a Remote SCADA system for distributed busbar protection, is characterized in that, comprise control end, and described control end comprises the first receiving element, the first generation unit;
Described first receiving element is for receiving the data message of gas supply control subsystem, and it is strong that described data message comprises natural pressure;
Described first generation unit is for judging whether described rock gas pressure is more than or equal to first threshold; if not; generate the first stop instruction; control gas supply control subsystem to shut down; if; when detecting that described rock gas pressure is less than Second Threshold; generate and start supercharger instruction; control supercharger starts; when detecting that described natural pressure is more than or equal to by force Second Threshold; valve command and enabled instruction are opened in generation, control described gas supply control subsystem valve open and the startup of gas turbine control subsystem respectively.
7. Remote SCADA system as claimed in claim 6, it is characterized in that, described data message also comprises supercharger rear end pressure and natural gas leaking concentration;
Described first generation unit also for:
Judge whether described supercharger rear end pressure is less than or equal to the 3rd threshold value, if, generate described first stop instruction and the second stop instruction, control described gas supply control subsystem respectively and shut down and the shutdown of described gas turbine control subsystem, and send supercharger failure message; With
Judge whether described natural gas leaking concentration is more than or equal to the 4th threshold value, if, generate described first stop instruction and the second stop instruction, control described gas supply control subsystem respectively and shut down and the shutdown of described gas turbine control subsystem, and send natural gas leaking failure message;
Described control end also comprises the first alarm unit and the second alarm unit;
Described first alarm unit is used for giving the alarm after described first generation unit generates the first stop instruction, sends air feed failure message;
Described second alarm unit is used for giving the alarm after described first generation unit generates the first stop instruction and the second stop instruction, sends supercharger failure message and natural gas leaking failure message.
8. Remote SCADA system as claimed in claim 7, it is characterized in that, described control end also comprises the second receiving element, the second generation unit and the 3rd alarm unit;
Described second receiving element is for receiving the data message of generator control subsystem, and described data message comprises the running status of output voltage and generator;
Described second generation unit is used for:
Judge whether described output voltage is more than or equal to the 5th threshold value, if so, generatrix reclosing command, control the described bus for distribution control subsystem and close a floodgate;
Judge whether the running status of described generator normally works, if not, generate the 3rd stop instruction and bus open command, control described generator control subsystem respectively and shut down and supply the bus of distribution control subsystem to disconnect;
Described 3rd alarm unit is used for sending generator failure information after described second generation unit generates described 3rd stop instruction and bus open command.
9. Remote SCADA system as claimed in claim 8, it is characterized in that, described control end also comprises the 3rd receiving element, the 3rd generation unit and the 4th alarm unit;
Described 3rd receiving element receives the data message of hydro-thermal management control subsystem for receiving described Remote SCADA server;
Described 3rd generation unit is used for when detecting that described data message exceeds normal range of operation, generates the 4th stop instruction, controls described hydro-thermal management control subsystem and shuts down;
Described 4th alarm unit is used for the cooling system failure information sending described hydro-thermal management control subsystem after described 3rd generation unit generates described 4th stop instruction.
10. Remote SCADA system as claimed in claim 9, it is characterized in that, also comprise transmitting terminal, described transmitting terminal comprises the first transmitting element, the second transmitting element, the 3rd transmitting element, the 4th transmitting element and the 5th transmitting element;
Described first transmitting element is used for described first stop instruction, starts supercharger instruction or open valve command and be forwarded to described gas supply control subsystem;
Described second transmitting element is used for described enabled instruction or the second stop instruction to be forwarded to described gas turbine control subsystem;
Described 3rd transmitting element is described for distribution control subsystem for described bus reclosing command or bus open command being forwarded to;
Described 4th transmitting element is used for described 3rd stop instruction to be forwarded to described generator control subsystem;
Described 5th transmitting element is used for described 4th stop instruction and is forwarded to described hydro-thermal management control subsystem.
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| CN105137879B (en) | 2018-12-21 |
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