CN113050510A - Auxiliary decision-making device for starting process of marine power system - Google Patents
Auxiliary decision-making device for starting process of marine power system Download PDFInfo
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- CN113050510A CN113050510A CN202110330292.5A CN202110330292A CN113050510A CN 113050510 A CN113050510 A CN 113050510A CN 202110330292 A CN202110330292 A CN 202110330292A CN 113050510 A CN113050510 A CN 113050510A
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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
- G05B19/0423—Input/output
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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
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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Abstract
The invention discloses an auxiliary decision-making device for a starting process of a marine power system, which belongs to the field of auxiliary decision-making of marine power control systems. At the breakpoint, the auxiliary decision-making device for the starting process of the marine power system provides effective control assistance for control personnel according to intelligent data processing and control logic judgment, so that more attention can be focused on monitoring the starting state of the marine power system, and the reliability and the safety of the starting process of the marine power system are improved.
Description
Technical Field
The invention belongs to the field of auxiliary decision making of marine power control systems, and particularly relates to an auxiliary decision making device for a starting process of a marine power system, which comprises an FPGA (field programmable gate array) main controller, a man-machine interaction module, a state signal feedback module, a control signal driving module, an Ethernet module and a programmable module.
Background
The starting process of the large marine power system has the following characteristics:
1) the large-scale marine power system has the characteristics of complex structure, nonlinearity, strong coupling among main parameters and the like, the starting process of the large-scale marine power system relates to a plurality of subsystems, the parameters to be monitored and the operation items to be completed are various, and the dynamic characteristics of the related systems, the operation characteristics of the controlled equipment and the safety need to be fully considered.
2) The operation of the large marine power system in the starting process is mainly carried out by paper regulations and subjective experience of operators, the accuracy and the specification of the operation cannot be completely guaranteed, and the operation is missed or mistakenly operated particularly when the operators are in tense, excited and fatigue states.
3) The improvement of the intelligent level of the large-scale marine power system is the requirement and the trend of the development of the marine power system in the future, the intelligent level of the control system is the priority direction of the intelligent development of the large-scale marine power system, and the development level of the large-scale marine power system is away from the requirement for a certain distance at present.
In the normal operation of a large-scale marine power system, starting is the most complex process in all control, the whole process comprises different stages of water filling and air exhausting, temperature rising and pressure rising, heat source starting, heating pipe warming, steam turbine running, power increasing and the like of the system, and different tasks such as initial condition confirmation, notice prompt, operation execution and the like need to be completed in each stage. Therefore, the operator has a large workload in the starting process of the large marine power system, and misoperation and operation leakage are easy to occur.
According to the characteristics of the starting process of the large-scale marine power system, by combining the intelligent level development requirement of the large-scale marine power system, how to configure an auxiliary decision-making device for the starting process of the marine power system, the auxiliary decision-making of the starting process of the large-scale marine power system is realized by adopting intelligent information input, information processing, information output and information interaction modes, and the intelligent level of the device is continuously improved by upgrading control logic and intelligent algorithm, so that the technical problem which needs to be solved urgently at present is solved.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention provides an auxiliary decision-making device for the starting process of a marine power system, which can be used for auxiliary decision-making of the starting process of the marine power system, provides support for the operation and control decision of an operator through state detection and logic judgment of each device in the starting process, lightens the workload of the operator, effectively avoids misoperation and improves the reliability and the safety.
In order to achieve the above object, the present invention provides an auxiliary decision device for a starting process of a marine power system, comprising: the system comprises an FPGA main controller, a human-computer interaction module, an Ethernet communication module, a state signal feedback module, a control signal driving module and a programmable module;
the first port and the second port of the human-computer interaction module are respectively and correspondingly connected with the first port and the second port of the Ethernet module so as to realize a remote human-computer interaction function;
the third port to the sixth port of the Ethernet module are respectively connected with the MOSI, MISO and SCLK of the FPGA main controller,
Correspondingly connecting, and adopting an SPI communication protocol to interact data information acquired from the man-machine interaction module;
the first port to the eighth port of the state signal feedback module are respectively and correspondingly connected with IN1 to IN8 of the FPGA master controller, so that the field signals of the marine power system can be collected;
the first port to the eighth port of the control signal driving module are respectively and correspondingly connected with OUT1 to OUT8 of the FPGA master controller, so that weak signals output by the FPGA master controller can be converted into strong signals, and the strong signals are output to a field control unit of the marine power system;
the first port to the fifth port of the programmable module are respectively and correspondingly connected with the TCLK, TMS, TDI, TDO and VTREF of the FPGA main controller, so that the hardware control logic inside the FPGA main controller can be changed.
In some optional embodiments, the internal control logic structure of the FPGA master comprises: the system control logic module, the function group control logic module and the function subgroup and equipment group control logic module;
the internal control logic structure of the FPGA main controller follows a modular design idea, adopts a pyramid-shaped hierarchical structure, and sequentially comprises the system control logic module, the function group control logic module and the function subgroup and equipment group control logic module from top to bottom.
In some optional embodiments, the system control logic module is a highest-level control center of the marine power system, and according to a specified program, the marine power system is brought from an initial state to a complete startup state, different startup logics are set for different startup stages, different interface configurations are performed in the human-computer interaction module, breakpoints are set between different startup stages, and after confirmation by an operator, the program is continued, wherein the breakpoints set between different startup stages can confirm the startup state of the previous stage and give guidance to the control of the next stage, each startup stage is divided into a plurality of independent links on the basis of the decomposition of the startup process and the setting of the breakpoints, so as to define a plurality of relatively independent function groups, and the function group control logic module receives a command of the system control logic module, and reasonably calling the function subgroups and the equipment groups through the function subgroup and equipment group control logic module, and orderly commanding and scheduling the starting process of the marine power system.
In some alternative embodiments, each control logic of the system control logic modules includes a module enable input signal, a module enable signal, and a module complete output signal;
for each control logic, two module enable input signals serve as the input of a two-input AND gate, a module starting signal is output by the AND gate and is a starting signal of the logic, and the high level is effective;
and for the second control logic to the Nth control logic, one module enabling input signal port of each control logic is connected to the module of the last control logic to complete the output signal port, and the other module enabling input signal port is connected to the interrupt control logic.
In some optional embodiments, the control signal driving module comprises: the circuit comprises a linear optical coupling unit, an operational amplifier unit and a peripheral circuit;
the input signal of the linear optical coupling unit is from the weak current control signal of the FPGA main controller, the output signal of the linear optical coupling unit passes through the strong current control signal amplified by the operational amplifier and is directly connected to controlled equipment, the strong current signal and the weak current signal are isolated by the linear optical coupling unit, and the peripheral circuit formed by a resistance-capacitance element ensures the normal work of the linear optical coupling unit and the operational amplifier and improves the anti-interference capability.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
(1) the method can realize the decomposition of the complex starting process of the large-scale marine power system, can provide decision support for the starting process of the large-scale marine power system on one hand, can provide guidance for the design of the large-scale marine power system on the other hand, and can also provide help for the improvement of the starting regulation of the large-scale marine power system.
(2) The intelligent level of the large-scale marine power system is improved, the intelligent level of the large-scale marine power system in the starting process is improved according to intelligent data processing and control logic judgment, the burden of operators is reduced, and the reliability and the safety of the starting process are improved.
(3) The method can be combined with advanced applications such as fault diagnosis, health detection, operation and maintenance support and the like, so that the power control information system for the large ship has more complete functions.
Drawings
FIG. 1 is a schematic structural diagram of an auxiliary decision-making device for a starting process of a marine power system according to an embodiment of the present invention;
FIG. 2 is an internal control logic structure of an FPGA master controller according to an embodiment of the present invention;
FIG. 3 is a diagram of a system control logic level linkage provided by an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a part of a control signal driving module according to an embodiment of the present invention;
wherein, 1 is the FPGA master controller, 2 is the human-computer interaction module, 3 is the ethernet communication module, 4 is status signal feedback module, 5 is control signal drive module, 6 is programmable module, 7 is system control logic module, 8 is function group control logic module, 9 is function subgroup and equipment group control logic module, 10 is the module enable input signal, 11 is the module start signal, 12 is the module and accomplishes output signal, 13 is the linear opto-coupler unit, 14 is the operational amplifier unit, 15 is peripheral circuit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the present examples, "first", "second", etc. are used for distinguishing different objects, and are not used for describing a specific order or sequence.
The auxiliary decision-making device for the starting process of the marine power system can realize the decomposition of the complex starting process of the large marine power system and set breakpoints among different starting stages. At the breakpoint, the auxiliary decision-making device for the starting process of the marine power system provides effective control assistance for control personnel according to intelligent data processing and control logic judgment, so that more attention can be focused on monitoring the starting state of the marine power system, and the reliability and the safety of the starting process of the marine power system are improved. The method specifically comprises the following technical characteristics:
(1) and (4) a complete intelligent information processing flow. The auxiliary decision-making device for the starting process of the marine power system forms a complete auxiliary decision-making framework integrating information input, information processing, information output and information interaction, has certain expansibility, can process data through a built-in intelligent control algorithm and logic, and provides effective auxiliary decision-making information for the starting process for operators.
(2) Modular hierarchical control logic design. In order to improve the applicability and the expansibility of the auxiliary decision device in the starting process of the marine power system, the control logic in the FPGA main controller follows the modularized design idea, and a pyramid-shaped layered structure is adopted and comprises a system control logic module, a function group control logic module, a function subgroup and equipment group control logic module and the like.
(3) Friendly interaction and upgrading design. The auxiliary decision-making device for the starting process of the marine power system comprises an independent human-computer interaction module, a programmable module and the like on the design of a hardware frame, can effectively play the supply of multi-dimensional auxiliary decision-making information on use, can store different starting control logics, and can realize the upgrading of an intelligent algorithm and control logic of the auxiliary decision-making device.
Fig. 1 is a schematic structural diagram of an auxiliary decision-making device for a starting process of a marine power system according to an embodiment of the present invention, including: the system comprises an FPGA main controller 1, a human-computer interaction module 2, an Ethernet communication module 3, a state signal feedback module 4, a control signal driving module 5 and a programmable module 6.
The first port and the second port of the human-computer interaction module 2 are respectively and correspondingly connected with the first port and the second port of the Ethernet module 3, so as to realize a remote human-computer interaction function; the third to sixth ports of the Ethernet module 3 are respectively connected with the first to fourth ports (i.e. MOSI, MISO, SCLK, etc.) of the FPGA master 1,
) Corresponding connection, adoptThe SPI communication protocol interacts data information obtained from the human-computer interaction module 2; the first port to the eighth port of the state signal feedback module 4 are respectively and correspondingly connected with the fifth port to the twelfth port (namely IN1 to IN8) of the FPGA master controller 1, so that the field signals of the marine power system can be collected; the first port to the eighth port of the control signal driving module 5 are respectively and correspondingly connected with the thirteenth port to the twentieth port (namely OUT1 to OUT8) of the FPGA master controller 1, so that a weak signal output by the FPGA master controller 1 can be converted into a strong signal and output to the marine power system field control unit; the first port to the fifth port of the programmable module 6 are respectively and correspondingly connected with the twenty-first port to the twenty-fifth port (namely TCLK, TMS, TDI, TDO and VTREF) of the FPGA master controller 1, so that the hardware control logic inside the FPGA master controller can be changed.
Fig. 2 shows an internal control logic structure of an FPGA master according to an embodiment of the present invention, which includes: a system control logic module 7, a function group control logic module 8 and a function subgroup and equipment group control logic module 9.
The control logic of the auxiliary decision device for the starting process of the marine power system follows the modularized design idea and adopts a pyramid-shaped layered structure. The system control logic module 7 is a highest-level control center of the marine power system, the marine power system is brought to a complete starting state from an initial state according to a specified program, a small number of breakpoints are set in the middle, and the program continues to be executed after the confirmation of an operator. The decomposition of the starting process and the setting of the break points are determined according to the control process and the operation rule of the marine power system, and can be adjusted according to actual conditions, for example, the starting process of the large marine power system can be decomposed into different stages of water filling and exhaust, temperature rise and pressure rise, heat source starting, warm pipe warming, steam turbine running, power boost and the like, different starting logics are set in the FPGA main controller 1 according to the decomposition of the starting process, and the configuration of different interfaces is carried out in the human-computer interaction module 2. The breakpoint set between different starting stages can confirm the starting state of the previous stage and give guidance to the control of the next stage. On the basis of the decomposition of the starting process and the setting of breakpoints, each starting stage is divided into a plurality of independent links, and then a plurality of relatively independent function groups are defined. And the function group control logic module 8 receives the command of the system control logic module 7, and orderly commands and schedules the starting process of the marine power system by reasonably calling the function subgroups and the equipment groups.
Fig. 3 is a diagram of a system control logic stage according to an embodiment of the present invention, wherein each system control logic module 7 includes a module enable input signal 10, a module enable signal 11, and a module complete output signal 12.
Each control logic of the system control logic module 7 in the FPGA main controller 1 of the auxiliary decision device for the starting process of the marine power system is provided with a multi-signal interlocking structure, and the safe and orderly starting of the marine power system can be ensured in a certain cascading mode. The module enable input signals En1 and En2 are input to a two-input and gate, and the module Start signal Start is output from the and gate, where Start is the module Start signal and high level is active. The cascade mode of the control logic is as follows: the En1 and En2 signals of the control logic 1 are controlled by interrupt logic, and for the control logics 2 to N, an En1 port of each control logic is connected to a module completion output signal End port of the previous control logic, and an En2 port is connected with the interrupt control logic.
The auxiliary decision-making device for the starting process of the marine power system is designed with a circuit with a plurality of modules, and fig. 4 is a schematic circuit diagram of a part of a control signal driving module, and comprises a linear optical coupling unit 13, an operational amplifier unit 14, a peripheral circuit 15 and the like.
The Vin signal is a weak current control signal from the FPGA, Vo is a strong current control signal amplified by the operational amplifier and is directly connected to controlled equipment, the strong current signal and the weak current signal are isolated by the linear optocoupler unit, and a peripheral circuit formed by a resistance-capacitance element ensures normal work of the linear optocoupler and the operational amplifier and improves anti-interference capability.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. An auxiliary decision-making device for a starting process of a marine power system is characterized by comprising: the system comprises an FPGA main controller, a human-computer interaction module, an Ethernet communication module, a state signal feedback module, a control signal driving module and a programmable module;
the first port and the second port of the human-computer interaction module are respectively and correspondingly connected with the first port and the second port of the Ethernet module so as to realize a remote human-computer interaction function;
the third port to the sixth port of the Ethernet module are respectively connected with the MOSI, MISO and SCLK of the FPGA main controller,
Correspondingly connecting, and adopting an SPI communication protocol to interact data information acquired from the man-machine interaction module;
the first port to the eighth port of the state signal feedback module are respectively and correspondingly connected with IN1 to IN8 of the FPGA master controller, so that the field signals of the marine power system can be collected;
the first port to the eighth port of the control signal driving module are respectively and correspondingly connected with OUT1 to OUT8 of the FPGA master controller, so that weak signals output by the FPGA master controller can be converted into strong signals, and the strong signals are output to a field control unit of the marine power system;
the first port to the fifth port of the programmable module are respectively and correspondingly connected with the TCLK, TMS, TDI, TDO and VTREF of the FPGA main controller, so that the hardware control logic inside the FPGA main controller can be changed.
2. The apparatus of claim 1, wherein the internal control logic structure of the FPGA master comprises: the system control logic module, the function group control logic module and the function subgroup and equipment group control logic module;
the internal control logic structure of the FPGA main controller follows a modular design idea, adopts a pyramid-shaped hierarchical structure, and sequentially comprises the system control logic module, the function group control logic module and the function subgroup and equipment group control logic module from top to bottom.
3. The apparatus of claim 2, wherein the system control logic module is a highest-level control center of the marine power system, and is configured to bring the marine power system from an initial state to a fully-started state according to a predetermined program, set different start-up logics for different start-up stages, configure different interfaces in the human-computer interaction module, set breakpoints between different start-up stages, and after confirmation by an operator, the program continues, wherein the breakpoints set between different start-up stages can confirm the start-up state of the previous stage and give guidance to the operation and control of the next stage, and each start-up stage is divided into a plurality of independent links based on the decomposition of the start-up process and the setting of the breakpoints, so as to define a plurality of relatively independent function groups, and the function group control logic module receives the command of the system control logic module, and reasonably calling the function subgroups and the equipment groups through the function subgroup and equipment group control logic module, and orderly commanding and scheduling the starting process of the marine power system.
4. The apparatus of claim 3, wherein each control logic of the system control logic modules comprises a module enable input signal, a module enable signal, and a module complete output signal;
for each control logic, two module enable input signals serve as the input of a two-input AND gate, a module starting signal is output by the AND gate and is a starting signal of the logic, and the high level is effective;
and for the second control logic to the Nth control logic, one module enabling input signal port of each control logic is connected to the module of the last control logic to complete the output signal port, and the other module enabling input signal port is connected to the interrupt control logic.
5. The apparatus of claim 1, wherein the control signal driving module comprises: the circuit comprises a linear optical coupling unit, an operational amplifier unit and a peripheral circuit;
the input signal of the linear optical coupling unit is from the weak current control signal of the FPGA main controller, the output signal of the linear optical coupling unit passes through the strong current control signal amplified by the operational amplifier and is directly connected to controlled equipment, the strong current signal and the weak current signal are isolated by the linear optical coupling unit, and the peripheral circuit formed by a resistance-capacitance element ensures the normal work of the linear optical coupling unit and the operational amplifier and improves the anti-interference capability.
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Application publication date: 20210629 |