CN112130449B - Redundancy control system and method thereof - Google Patents
Redundancy control system and method thereof Download PDFInfo
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- CN112130449B CN112130449B CN202011029321.6A CN202011029321A CN112130449B CN 112130449 B CN112130449 B CN 112130449B CN 202011029321 A CN202011029321 A CN 202011029321A CN 112130449 B CN112130449 B CN 112130449B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 90
- 238000009413 insulation Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000191291 Abies alba Species 0.000 description 1
- 101150054754 UPS2 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
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Abstract
The application discloses a redundant control system and a method thereof, wherein the redundant control system comprises a power unit and an underwater control module; the power unit comprises a first power supply module, a first communication module, a second power supply module, a second communication module, a first redundancy switching device and a redundancy control module; the underwater control module comprises a first underwater electronic module, a second underwater electronic module and a second redundancy switching device; the first power supply module and the first communication module are connected with the first underwater electronic module through a first umbilical cable to form a first branch; the second power supply module and the second communication module are connected with the second underwater electronic module through a second umbilical cable to form a second branch. According to the application, the first redundancy switching device and/or the second redundancy switching device are controlled by the redundancy control module to perform switching operation, so that the redundancy of power supply and communication of the power unit to the underwater control module is realized, and the reliable operation of the underwater control module is ensured.
Description
Technical Field
The application relates to the technical field of marine oil and gas equipment, in particular to a redundant control system and a method thereof.
Background
The SCM (Subsea Control Module, underwater control module) is a core control component of the marine oil and gas field for controlling petroleum drilling equipment such as underwater christmas tree, manifold and the like, and has the following basic functions: 1) Monitoring various sensor parameters on underwater drilling equipment, and transmitting parameter information to a main control station of a sea surface platform; 2) And controlling the opening and closing states of a hydraulic driver and a valve on the underwater drilling and production equipment based on a control signal sent by the main control station of the sea surface platform.
EPU (ELECTRICAL POWER UNIT, power unit) is a key component for providing power and communication to SCM, and is generally used for supplying power to SCM by using umbilical cable to divide two independent power sources. However, when one of the umbilical cables fails irrecoverably, the power supply and communication of the one umbilical cable are in a long-time stop operation state, so that the corresponding SEM (Subsea Electronic Module, underwater electronic module) of the one umbilical cable is in an idle state, which brings challenges to the aspects of power supply safety and reliability, data communication, line loss and the like.
Disclosure of Invention
In view of the above, the present application is directed to a redundant control system and a method thereof, so as to solve the power supply and communication failure problem of the underwater control module.
The technical scheme adopted by the application for solving the technical problems is as follows:
According to one aspect of the present application, there is provided a redundant control system including a power unit and an underwater control module;
the power unit comprises a first power supply module, a first communication module, a second power supply module, a second communication module, a first redundancy switching device and a redundancy control module; the underwater control module comprises a first underwater electronic module, a second underwater electronic module and a second redundancy switching device;
The first power supply module and the first communication module are connected with the first underwater electronic module through a first umbilical cable to form a first branch; the second power supply module and the second communication module are connected with the second underwater electronic module through a second umbilical cable to form a second branch;
the redundancy control module is configured to:
Acquiring state information of the first power supply module, the first communication module, the first umbilical cable, the second power supply module, the second communication module and the second umbilical cable; determining fault information of the first branch and the second branch according to the state information; and controlling the first redundancy switching device and/or the second redundancy switching device to perform switching operation according to the fault information of the first branch and the second branch so as to realize redundancy of power supply and communication of the power unit to the underwater control module.
In one embodiment, the redundancy control module is configured to:
When the first power supply module and/or the first communication module fail, the first redundant switching device is controlled to perform switching operation so as to supply power and communicate with the first underwater electronic module through the second power supply module and the second communication module.
In one embodiment, the redundancy control module is configured to:
When the second power supply module and/or the second communication module fail, the first redundant switching device is controlled to perform switching operation so as to supply power and communicate with the second underwater electronic module through the first power supply module and the first communication module.
In one embodiment, the fault types of the first power supply module and the second power supply module include at least one of: the power supply current is instantaneously increased, and the power supply module trips;
The fault type of the first communication module and the second communication module is communication disconnection.
In one embodiment, the redundancy control module is configured to:
when the first umbilical cable fails, the second redundant switching device is controlled to perform switching operation, so that power supply and communication are performed on the first underwater electronic module through the second power supply module and the second communication module.
In one embodiment, the redundancy control module is configured to:
When the second umbilical cable fails, the second redundant switching device is controlled to perform switching operation, so that power supply and communication are performed on the second underwater electronic module through the first power supply module and the first communication module.
In one embodiment, the type of failure of the first umbilical and the second umbilical is low umbilical insulation.
In one embodiment, the first redundant switching device and the second redundant switching device each comprise a first interlock switch and a second interlock switch connected in series.
In one embodiment, the first power supply module and the second power supply module each comprise a transformer and a power supply unit connected in series;
The transformer is connected with an external power supply, so that the external power supply sequentially supplies power to the underwater control module through the transformer, the power supply unit and the umbilical cable.
According to another aspect of the present application, there is provided a redundancy control method, the method comprising:
acquiring state information of a first power supply module, a first communication module, a first umbilical cable, a second power supply module, a second communication module and a second umbilical cable;
Determining fault information of the first branch and the second branch according to the state information;
and controlling the first redundancy switching device and/or the second redundancy switching device to perform switching operation according to the fault information of the first branch and the second branch so as to realize redundancy of power supply and communication of the power unit to the underwater control module.
According to the redundancy control system and the redundancy control method, the redundancy control module controls the first redundancy switching device and/or the second redundancy switching device to perform switching operation, so that redundancy of power supply and communication of the power unit to the underwater control module is realized, and reliable operation of the underwater control module is ensured.
Drawings
FIG. 1 is a schematic diagram of a redundant control system according to an embodiment of the present application;
FIG. 2 is a schematic diagram of redundant power supply and communication of a redundant control system according to an embodiment of the present application;
Fig. 3 is a schematic diagram of a redundancy control method according to an embodiment of the present application.
The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear and obvious, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
Example 1
As shown in fig. 1, an embodiment of the present application provides a redundant control system, which includes a power unit and an underwater control module;
The power unit comprises a first power supply module, a communication module 1, a second power supply module, a communication module 2, a redundancy switching device 1 and a redundancy control module; the underwater control module comprises an underwater electronic module 1, an underwater electronic module 2 and a redundancy switching device 2;
in this example, the communication module 1 includes a transformer 1 and a power supply unit 1 connected in series; the communication module 2 comprises a transformer 2 and a power supply unit 2 connected in series;
The transformer 1 is connected with an external input power source 1 such that the external input power source 1 supplies power to the underwater control module 1 through the transformer 1, the power supply unit 1, and the umbilical in this order. The transformer 2 is connected with an external input power source 2 such that the external input power source 2 supplies power to the underwater control module 2 through the transformer 2, the power supply unit 2, and the umbilical in sequence.
The first power supply module is connected with the communication module 1 through a first umbilical cable and the underwater electronic module 1 to form a first branch; the second power supply module is connected with the communication module 2 through a second umbilical cable and the underwater electronic module 2 to form a second branch;
the redundancy control module is configured to:
Acquiring state information of the first power supply module, the communication module 1, the first umbilical cable, the second power supply module, the communication module 2 and the second umbilical cable; determining fault information of the first branch and the second branch according to the state information; and according to the fault information of the first branch and the second branch, controlling the redundancy switching device 1 and/or the redundancy switching device 2 to perform switching operation so as to realize redundancy of power supply and communication of the power unit to the underwater control module.
In one embodiment, the redundancy control module is configured to:
when the first power supply module and/or the communication module 1 fail, the redundant switching device 1 is controlled to perform switching operation so as to supply power and communicate with the underwater electronic module 1 through the second power supply module and the communication module 2.
In one embodiment, the redundancy control module is configured to:
When the second power supply module and/or the communication module 2 fail, the redundant switching device 1 is controlled to perform switching operation so as to supply power and communicate with the underwater electronic module 2 through the first power supply module and the communication module 1.
In one embodiment, the fault types of the first power supply module and the second power supply module include at least one of: the power supply current is instantaneously increased, and the power supply module trips;
the fault types of the communication module 1 and the communication module 2 are communication disconnection.
In one embodiment, the redundancy control module is configured to:
When the first umbilical cable fails, the redundant switching device 2 is controlled to perform switching operation so as to supply power and communicate with the underwater electronic module 1 through the second power supply module and the communication module 2.
In one embodiment, the redundancy control module is configured to:
When the second umbilical cable fails, the redundant switching device 2 is controlled to perform switching operation so as to supply power and communicate with the underwater electronic module 2 through the first power supply module and the communication module 1.
In one embodiment, the type of failure of the first umbilical and the second umbilical is low umbilical insulation.
In one embodiment, the redundant switching device 1 and the redundant switching device 2 each comprise a first interlock switch and a second interlock switch connected in series.
The redundancy control process is described below in conjunction with fig. 2:
As shown in fig. 2, the EPU is powered and communicates to SEM a and SEM B by 4 SOMs (Subsea Output Module, subsea output modules), each set of interlock switches on water and subsea. During normal operation, normally closed switches KM_SOM2, KM_SOM12, KM_SOM23 and KM_SOM14 are disconnected, and switching switches KM_SOM1, KM_SOM22, KM_SOM13 and KM_SOM24 are not closed, so that each power supply is independently powered. When a power failure occurs, there are roughly two cases:
1. If one SOM module on the water fails, such as the power output module of SCM A fails, the normally closed switch KM_SOM12 on the water is closed, and KM_SOM22 is closed, so that UPS2 can supply power to SEM A from the branch.
2. If a certain umbilical of the underwater portion fails, for example, an umbilical for powering SEM a fails, the underwater normally closed switch km_som14 is closed, and km_som24 is controlled to close, so that current of UPS 2 can flow through the branch to power SEM a.
The EPU is configured with an underwater power carrier communication mode and forms a communication unit with underwater. The communication unit comprises a modem and a filter, and is integrated in the SOM module. The communication network ports of the two sets of main PLCs are respectively connected to the two switches, and the two switches are connected with each other and then form a redundant ring network with the switch of the MCS (master control station), so that the reliability of system communication is improved. The gateway device of the EPU provides a communication link for the MCS by using a multi-broadband modulation-demodulation mode, and meanwhile, universal TCP and RS485 interfaces are configured to ensure the safe transmission of communication protocol data.
Example 2
As shown in fig. 3, the embodiment of the present application provides a redundancy control method, and the redundancy control system may refer to the foregoing, which is not described herein.
The method comprises the following steps:
step S11: acquiring state information of a first power supply module, a first communication module, a first umbilical cable, a second power supply module, a second communication module and a second umbilical cable;
step S12: determining fault information of the first branch and the second branch according to the state information;
Step S13: and controlling the first redundancy switching device and/or the second redundancy switching device to perform switching operation according to the fault information of the first branch and the second branch so as to realize redundancy of power supply and communication of the power unit to the underwater control module.
In one embodiment, the method further comprises:
when the first power supply module and/or the communication module 1 fail, the redundant switching device 1 is controlled to perform switching operation so as to supply power and communicate with the underwater electronic module 1 through the second power supply module and the communication module 2.
In one embodiment, the method further comprises:
When the second power supply module and/or the communication module 2 fail, the redundant switching device 1 is controlled to perform switching operation so as to supply power and communicate with the underwater electronic module 2 through the first power supply module and the communication module 1.
In one embodiment, the fault types of the first power supply module and the second power supply module include at least one of: the power supply current is instantaneously increased, and the power supply module trips;
the fault types of the communication module 1 and the communication module 2 are communication disconnection.
In one embodiment, the method further comprises:
When the first umbilical cable fails, the redundant switching device 2 is controlled to perform switching operation so as to supply power and communicate with the underwater electronic module 1 through the second power supply module and the communication module 2.
In one embodiment, the method further comprises:
When the second umbilical cable fails, the redundant switching device 2 is controlled to perform switching operation so as to supply power and communicate with the underwater electronic module 2 through the first power supply module and the communication module 1.
In one embodiment, the type of failure of the first umbilical and the second umbilical is low umbilical insulation.
In one embodiment, the redundant switching device 1 and the redundant switching device 2 each comprise a first interlock switch and a second interlock switch connected in series.
The preferred embodiments of the present application have been described above with reference to the accompanying drawings, and thus do not limit the scope of the claims of the present application. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and spirit of the present application shall fall within the scope of the appended claims.
Claims (10)
1. A redundant control system, wherein the redundant control system comprises a power unit and an underwater control module;
The power unit comprises a first power supply module, a first communication module, a second power supply module, a second communication module, a first redundancy switching device and a redundancy control module; the first power supply module and the second power supply module respectively comprise two underwater output modules; the first redundant switching device is an interlock switch KMSOM and KMSOM2 and an interlock switch KMSOM and KMSOM which connect the first power supply module and the second power supply module;
The underwater control module comprises a first underwater electronic module, a second underwater electronic module and a second redundancy switching device; the second redundant switching device is an interlock switch KMSOM and KMSOM23 and an interlock switch KMSOM and KMSOM14 that connect the first and second subsea electronic modules;
The first power supply module and the first communication module are connected with the first underwater electronic module through a first umbilical cable to form a first branch; the second power supply module and the second communication module are connected with the second underwater electronic module through a second umbilical cable to form a second branch;
Under the normal working state: keeping KMSOM and KMSOM12 and KMSOM23 and KMSOM normally closed, and other interlock switches normally open, so that the first power supply module supplies power to the first underwater electronic module, and the second power supply module supplies power to the second underwater electronic module;
The redundancy control module is configured to: acquiring state information of the first power supply module, the first communication module, the first umbilical cable, the second power supply module, the second communication module and the second umbilical cable; determining fault information of the first branch and the second branch according to the state information; according to the fault information of the first branch and the second branch, the first redundancy switching device and/or the second redundancy switching device are controlled to perform switching operation so as to realize redundancy of power supply and communication of the power unit to the underwater control module;
When any one of the first power supply module or the second power supply module has a power output fault, the normally closed switch KM_SOM12 is kept closed, the KM_SOM22 is closed, and the power supply module which does not have the fault supplies power to the first underwater electronic module and the second underwater electronic module simultaneously;
When any one of the umbilical cables connecting the first underwater electronic module and the second underwater electronic module fails, the underwater normally closed switch KM_SOM14 is kept closed, the KM_SOM24 is controlled to be closed, and the umbilical cables which do not fail supply power to the first underwater electronic module and the second underwater electronic module simultaneously.
2. The redundant control system of claim 1, wherein the redundant control module is configured to:
When the first power supply module and/or the first communication module fail, the first redundant switching device is controlled to perform switching operation so as to supply power and communicate with the first underwater electronic module through the second power supply module and the second communication module.
3. The redundant control system of claim 1, wherein the redundant control module is configured to:
When the second power supply module and/or the second communication module fail, the first redundant switching device is controlled to perform switching operation so as to supply power and communicate with the second underwater electronic module through the first power supply module and the first communication module.
4. A redundant control system according to claim 2 or 3, wherein the fault type of the first and second power supply modules comprises at least one of: the power supply current is instantaneously increased, and the power supply module trips; the fault type of the first communication module and the second communication module is communication disconnection.
5. The redundant control system of claim 1, wherein the redundant control module is configured to:
when the first umbilical cable fails, the second redundant switching device is controlled to perform switching operation, so that power supply and communication are performed on the first underwater electronic module through the second power supply module and the second communication module.
6. The redundant control system of claim 1, wherein the redundant control module is configured to:
When the second umbilical cable fails, the second redundant switching device is controlled to perform switching operation, so that power supply and communication are performed on the second underwater electronic module through the first power supply module and the first communication module.
7. The redundant control system of claim 5 or 6, wherein the type of failure of the first and second umbilical is low umbilical insulation.
8. The redundant control system of claim 1, wherein the first redundant switching device and the second redundant switching device each comprise a first interlock switch and a second interlock switch connected in series.
9. The redundant control system of claim 1, wherein the first power module and the second power module each comprise a transformer and a power supply unit connected in series;
The transformer is connected with an external power supply, so that the external power supply sequentially supplies power to the underwater control module through the transformer, the power supply unit and the umbilical cable.
10. A redundancy control method applied to the redundancy control system of claim 1, the method comprising:
acquiring state information of a first power supply module, a first communication module, a first umbilical cable, a second power supply module, a second communication module and a second umbilical cable;
Determining fault information of the first branch and the second branch according to the state information;
and controlling the first redundancy switching device and/or the second redundancy switching device to perform switching operation according to the fault information of the first branch and the second branch so as to realize redundancy of power supply and communication of the power unit to the underwater control module.
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