CN217607725U - Generator control device - Google Patents
Generator control device Download PDFInfo
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- CN217607725U CN217607725U CN202221214893.6U CN202221214893U CN217607725U CN 217607725 U CN217607725 U CN 217607725U CN 202221214893 U CN202221214893 U CN 202221214893U CN 217607725 U CN217607725 U CN 217607725U
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Abstract
The application provides a generator control device, specifically includes first controller, second controller, display, gateway equipment, local control cabinet, regulator cubicle, switch indicating instrument. The first controller is connected with the second controller through a ring network. The first controller is connected with the switch indication instrument through hard wiring. The second controller is connected with the display through a ring network. The second controller is connected with the communication interface of the gateway equipment. The local control cabinet and the electrical cabinet are respectively connected with a bus interface of the gateway equipment. Therefore, the connection mode inside the device is focused on the mode of network connection, the number of hard-wired connections is reduced, the internal wiring of the device is simple and clear, the digital technology is used, the modular design is adopted, the usability is improved, the maintenance and the change are simple and convenient, the precision of the device is high, the failure rate is low, and the core equipment is not easy to age.
Description
Technical Field
The application relates to the technical field of electrical equipment, in particular to a generator control device.
Background
The control of the traditional emergency diesel generator control device is mostly in a relay + PLC (programmable logic controller) mode. The safety level part of the original control system is controlled by adopting a relay, and a pure relay and a hardware connection wire are used for lap joint. The precision is low, and the operation is complex when the function is changed. The relay is used for a period of time and then the contact is aged and needs to be replaced completely, so that the stable operation of the system is ensured, and great risk is brought to the reliable operation of the emergency diesel generator. Maintenance costs are also high. The non-safety level part is controlled by adopting a PLC, safety level and non-safety level signals can only be controlled by adopting hard wiring, so that signal short circuit is complicated, and meanwhile, the running reliability of a PLC system is relatively low. Therefore, the existing emergency diesel generator control device generally has the defects of low precision, high failure rate, difficult maintenance and reconstruction and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the application provides a generator control device to solve the problem that generator control device ubiquitous among the prior art has the shortcoming such as precision is low, the fault rate is high, maintenance transformation difficulty.
In order to achieve the above purpose, the present application provides the following technical solutions:
the present application discloses in a first aspect a generator control device, comprising:
the system comprises a first controller, a second controller, a display, gateway equipment, a local control cabinet, an electrical cabinet and a switch indicating instrument;
the first controller is connected with the second controller through a ring network;
the first controller is connected with the switch indicating instrument through hard wiring;
the second controller is connected with the display through a ring network;
the second controller is connected with a communication interface of the gateway equipment;
the local control cabinet and the electrical cabinet are respectively connected with a bus interface of the gateway equipment.
Optionally, in the above apparatus, the first controller includes:
the system comprises a first processor, a second processor, a first communication unit and a second communication unit;
the first processor is connected with the second processor;
the first processor is connected with the first communication unit;
the second processor is connected with the second communication unit.
Optionally, in the above apparatus, the second controller includes:
the system comprises a third processor, a fourth processor, a third communication unit and a fourth communication unit;
the third processor is connected with the fourth processor;
the third processor is connected with the fourth communication unit;
the third processor is connected with the fourth communication unit.
Optionally, the above apparatus further comprises:
and the maintenance tool is respectively connected with the first controller and the second controller through a network.
Optionally, the above apparatus further includes:
and the nuclear power plant system is connected with the second controller through a ring network.
Optionally, the above apparatus further includes:
the field instrument is respectively connected with the first controller and the second controller through hard wiring.
According to the technical scheme, the generator control device specifically comprises a first controller, a second controller, a display, gateway equipment, an on-site control cabinet, an electrical cabinet and a switch indicating instrument. The first controller is connected with the second controller through a ring network. The first controller is connected with the switch indication instrument through hard wiring. The second controller is connected with the display through a ring network. The second controller is connected with the communication interface of the gateway equipment. The local control cabinet and the electrical cabinet are respectively connected with a bus interface of the gateway equipment. Therefore, the connection mode inside the device is focused on the mode of network connection, the number of hard-wired connections is reduced, the internal wiring of the device is simple and clear, the digital technology is used, the modular design is adopted, the usability is improved, the maintenance and the change are simple and convenient, the precision of the device is high, the failure rate is low, and the core equipment is not easy to age. The problem of generator controlling means ubiquitous shortcoming such as precision is low, the fault rate is high, maintain the transformation difficulty among the prior art is solved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of a generator control apparatus according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a self-diagnostic status display of a generator control apparatus according to another embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a hierarchical relationship of a generator control apparatus according to another embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a data processing flow of a generator control device according to another embodiment of the present disclosure;
FIG. 5 is a schematic diagram of a first controller disclosed in another embodiment of the present application;
FIG. 6 is a schematic view of another generator control apparatus disclosed in another embodiment of the present application;
FIG. 7 is a schematic illustration of another generator control device periodic testing as disclosed in another embodiment of the present application;
FIG. 8 is a schematic view of another generator control apparatus disclosed in another embodiment of the present application;
FIG. 9 is a schematic view of another generator control apparatus disclosed in another embodiment of the present application;
figure 10 is a schematic diagram of a power distribution panel disclosed in another embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Moreover, in this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
As known from the background art, the conventional emergency diesel generator control device is controlled by a relay + PLC (programmable logic controller). The safety level part of the original control system is controlled by adopting a relay, and a pure relay and a hardware wiring are used for lap joint. The precision is low, and the operation is complex when the function is changed. The relay is used for a period of time and then the contact is aged and needs to be replaced completely, so that the stable operation of the system is ensured, and great risk is brought to the reliable operation of the emergency diesel generator. Maintenance costs are also high. The non-safety level part is controlled by adopting a PLC, safety level and non-safety level signals can only be controlled by adopting hard wiring, so that signal short circuit is complicated, and meanwhile, the running reliability of a PLC system is relatively low. Therefore, the existing emergency diesel generator control device generally has the defects of low precision, high failure rate, difficult maintenance and reconstruction and the like.
In view of this, the application provides a generator control device to solve the problem that generator control device ubiquitous among the prior art has the shortcoming such as precision is low, the fault rate is high, maintenance transformation difficulty.
An embodiment of the utility model provides a generator controlling means, specifically as shown in FIG. 1, include:
the system comprises a first controller, a second controller, a display, gateway equipment, a local control cabinet, an electrical cabinet and a switch indicating instrument;
the first controller is connected with the second controller through a ring network;
the first controller is connected with the switch indicating instrument through hard wiring;
the second controller is connected with the display through a ring network;
the second controller is connected with a communication interface of the gateway equipment;
the local control cabinet and the electrical cabinet are respectively connected with a bus interface of the gateway equipment.
It should be noted that the generator control device provided by the present application is designed based on a Digital Control System (DCS), and a first controller is adopted in a security level part, where the first controller includes a processor and an IO communication unit, and specific controller models may be SABA01A, SABA01B, SABA01C, and the like, where the first controller and the second controller are connected by a ring network, and do not need to be connected by a hard wire, and the connection mode is simple and stable, thereby reducing difficulty in system maintenance and modification. In the prior art, equipment is easy to age in a relay and PLC control mode, a safety level side is realized by adopting 300 relays, each relay has an average number of 4 contacts, introduced nodes are too many, the running risk of a unit is very high, and the problem cannot occur in a mode that a first controller and a second controller are connected in the application.
It should be noted that the first controller is connected to the switch indicator by hard wiring, and the switch indicator is used to perform switching control of the device. The second controller is connected with the display through the ring network, the second controller sends the parameters and the information of the generator control device to the display through the ring network, and the display displays the parameters and the information after receiving the parameters and the information. For example, the device has a powerful self-diagnosis function, and can perform display and remote output by itself. The self-diagnostic functions include processor and channel self-diagnostics. Self-diagnostics of the processor portion include, but are not limited to: CPU, RAM, ROM, clock, watchdog, program sequence; the channel part self-diagnosis requirement includes input and output channels: the input channel requires a channel comparison or dynamic input effective range signal self-checking mode, and the output channel requires a readback check diagnosis mode. The device displays and records self-diagnosis fault information on the display to form trend and record, so that maintenance personnel can quickly confirm and position fault points conveniently, and the specific self-diagnosis state is displayed as shown in figure 2.
The second controller is respectively connected with the local control cabinet and the electrical cabinet through gateway equipment (the gateway equipment comprises a gateway main control board card AABA03A and a communication interface board card HBBI 04A), wherein the second controller is connected with a communication interface of the gateway equipment, and the local control cabinet and the electrical cabinet are respectively connected with a bus interface of the gateway equipment. And the second controller is in network communication with the local control cabinet and the electrical cabinet through gateway equipment.
It should be further noted that, a schematic hierarchical relationship among signal conditioning, signal input and output, data processing, and communication of the generator control device is shown in fig. 3, and specifically includes:
the field signals are converted into standard current signals by signal conditioning layer equipment (such as a two-in-four conditioning board card SABK02C, an RTD conditioning distribution board card SABK03H and the like) through hard wiring isolation, the standard current signals are transmitted to a signal input and output layer, and received signals are converted into digital form data by signal input layer equipment (the signal input layer equipment comprises a digital quantity input board card SABE01A, an analog quantity input board card SABC01A and the like) and are transmitted to a data processing layer MPU (micro processor unit) through a communication unit to be subjected to logic processing. The MPU transmits the operation result to the signal output layer equipment (the signal output layer equipment comprises a digital output board SABF01A, an analog output board SABD01A and the like) through the communication unit for outputting to the outside, and performs data interaction to the display layer through the communication layer (the high-speed communication board SABB 11D).
The maintenance layer directly carries out data communication with the MPU through the maintenance interface, and executes operations such as program downloading, parameter setting, online monitoring and the like.
It should be further noted that, as shown in fig. 4, the general flow of the data processing part of the generator control device specifically includes:
the security level part: the device receives a safety level field process signal and a diesel generator emergency starting signal, and executes logic operation and logic coincidence processing through a safety level control module, wherein the safety level control module refers to a controller for executing the logic operation and the logic coincidence processing, and the functional safety level of the safety level control module is the safety level. Meanwhile, the control signal generated by the non-safety level carries out logic voting or logic operation to generate a safety level control signal, the conditioning unit transmits the safety level control signal to a safety level instrument execution mechanism of the generator through hard wiring to execute the functions of starting, stopping and protecting a motor of the diesel generator, and the like, for example: the emergency starting of the diesel generator, the operation of the diesel generator in an emergency state, the shutdown of the diesel generator and the linkage of a factory ventilation air-conditioning system.
The non-safety level part: the method comprises the following steps of receiving non-safety level field process signals and main control room operation signals, executing logic operation and logic coincidence processing through a non-safety level control module to generate non-safety level control signals, transmitting the non-safety level control signals to a generator non-safety level instrument execution mechanism through hard wiring by a conditioning unit, and executing control of the diesel generator, for example: starting and stopping the diesel engine in a non-emergency state, and operating state and detection, alarming and event recording of the diesel engine. Meanwhile, the non-safety control module generates a control signal and transmits the control signal to the safety control module through hard wiring to carry out logic operation.
In addition, the device can form an adjustable overspeed protection, electrical differential protection and emergency protection scheme according to the operating characteristics of the diesel generator; various start-up and stop modes of on-site and remote, automatic and manual, normal and slow, test and emergency are integrated, and the complex working condition of the diesel generating set is adapted; the timing and counting power-off maintaining function can be realized through timing and counting algorithms in different expression forms, and the zero clearing function can be realized under different operation authorities.
The embodiment of the application provides a generator control device, which comprises a first controller, a second controller, a display, gateway equipment, an on-site control cabinet, an electrical cabinet and a switch indicating instrument. The first controller is connected with the second controller through a ring network. The first controller is connected with the switch indication instrument through hard wiring. The second controller is connected with the display through a ring network. The second controller is connected with the communication interface of the gateway equipment. The local control cabinet and the electrical cabinet are respectively connected with a bus interface of the gateway equipment. Therefore, the connection mode inside the device is focused on the mode of network connection, the number of connections adopting hard wiring is reduced, the internal wiring of the device is simple and clear, the digitization technology is used, the modular design is adopted, the usability is improved, the maintenance and the change are simple and convenient, the precision of the device is high, the failure rate is low, and the core equipment is not easy to age. The problem of among the prior art generator controlling means ubiquitous precision low, fault rate high, maintain defects such as transformation difficulty is solved.
Optionally, in another embodiment of the application, an implementation of the first controller may include:
the device comprises a first processor, a second processor, a first communication unit and a second communication unit.
Wherein the first processor is connected with the second processor.
The first processor is connected with the first communication unit.
The second processor is connected with the second communication unit.
The first controller adopts a dual redundant controller and a dual redundant IO communication mode, and specifically includes a first processor (SABA 01B), a second processor (SABA 01B), a first communication unit (SABB 11G), and a second communication unit (SABB 11G), as shown in fig. 5. Wherein the first processor is connected with the second processor. The first processor and the first communication unit are connected in a ring network mode. The second processor is connected with the second communication unit in a ring network mode. The redundant controllers can be switched undisturbed, and when one group of processors and the communication unit cannot normally operate, the other group of processors and the communication unit are immediately started, so that the operation stability of the system is greatly improved.
Optionally, in another embodiment of the application, an implementation manner of the second controller may include:
the system comprises a third processor, a fourth processor, a third communication unit and a fourth communication unit.
Wherein the third processor is connected with the fourth processor.
The third processor is connected with the fourth communication unit.
The third processor is connected with the fourth communication unit.
It should be noted that, for the implementation of the second controller, reference may be made to the implementation of the first controller, which is not described herein again.
Optionally, in another embodiment of the application, the generator control device may further include:
the maintenance tool is respectively connected with the first controller and the second controller through a network.
It should be noted that the maintenance tool is not accessed when the device is operating, and is accessed by the maintenance personnel only when the device is performing maintenance. As shown in fig. 6, the maintenance tool is connected to the first controller and the second controller via a network, respectively, and can perform system maintenance on the generator control device. The system is provided with a portable notebook computer as an engineer station, and special software for installation and test can be used for system maintenance, also called as a maintenance tool. The following functions are mainly performed by the maintenance tool:
(1) Parameter tuning function
Allowing authorized users to tune system setup parameters (including various thresholds and control algorithm parameters);
because the maintenance tool has a parameter setting function, the system is not provided with an independent operation panel, and the parameters of the control loop are modified through the maintenance tool; therefore, the usability is improved, the safety and the stability of the system are improved, and the manual misoperation is reduced.
(2) Verification function of parameter setting
Authorized users are allowed to check the system setting parameters, and whether the set setting parameters are correct or not and whether the system action is normal or not are checked.
(3) Data enforcement and data monitoring functions that participate in periodic experiments.
For example, the system may verify the input signal during overhaul by injecting test signals manually by a tester at the wiring terminals in the cabinet, observing the measured display values through a maintenance tool and comparing them. The system adopts the sectional test terminal, so that a tester can realize disconnection of a real signal without removing a field incoming cable, and a test signal is injected to complete the integrity of a periodic test and a test function. Meanwhile, a tester can inject a forced signal through a network through a maintenance tool to detect the logic of a software algorithm and finish the aim of checking an output signal. The principle of the periodic experiment is shown in fig. 7.
Optionally, in another embodiment of the application, the generator control device may further include:
and the nuclear power plant system is connected with the second controller through a ring network.
It should be noted that, as shown in fig. 8, the nuclear power plant system is connected to the second controller through a ring network, so as to implement data connection between the nuclear power plant system and the generator control device.
Optionally, in another embodiment of the application, the generator control device may further include:
the field instrument is respectively connected with the first controller and the second controller through hard wiring.
As shown in fig. 9, the field instrument, which may be a field instrument, a field controller, or the like, is connected to the first controller and the second controller by hard wiring, and thus, data connection between the field instrument and the generator control device is realized.
Optionally, in another embodiment of the application, the generator control device may apply a new data type, so as to improve the recording accuracy of the operation log and the alarm log.
Specifically, the recording precision of the log of the diesel engine is 200ms or longer, and aiming at the complexity of the field operation environment of the diesel engine, a novel data type is designed by binding input and output signals with an MPU operation period value, so that the recording precision of an operation log and an alarm log is improved, and the sampling precision of all digital quantity input and output signals is improved to 15ms. Meanwhile, all input, output and intermediate signals are brought into log records, and the storage time is as long as more than 1 year. The diesel engine fault alarm device effectively ensures that when a plurality of faults of the diesel engine occur, the sequence of the occurrence of the signals can be distinguished, and effective data support is provided for analyzing and positioning fault reasons of operation and maintenance personnel.
Alternatively, in another embodiment of the application, the generator control apparatus may use a modular and harness standardized plug panel, as shown in fig. 10. The switchboard has the following advantages:
(1) The structure is compact and beautiful, the processing is convenient, the integrated assembly is realized, and the occupied space is reduced; (2) mass producible as a stand-alone unit; (3) The distributor structure is optimized, the disassembly and the maintenance are convenient, and the time and the labor are saved.
All the embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A generator control device, characterized by comprising:
the system comprises a first controller, a second controller, a display, gateway equipment, a local control cabinet, an electrical cabinet and a switch indicating instrument;
the first controller is connected with the second controller through a ring network;
the first controller is connected with the switch indicating instrument through hard wiring;
the second controller is connected with the display through a ring network;
the second controller is connected with the communication interface of the gateway equipment;
the local control cabinet and the electrical cabinet are respectively connected with a bus interface of the gateway equipment.
2. The apparatus of claim 1, wherein the first controller comprises:
the system comprises a first processor, a second processor, a first communication unit and a second communication unit;
the first processor is connected with the second processor;
the first processor is connected with the first communication unit;
the second processor is connected with the second communication unit.
3. The apparatus of claim 1, wherein the second controller comprises:
the system comprises a third processor, a fourth processor, a third communication unit and a fourth communication unit;
the third processor is connected with the fourth processor;
the third processor is connected with the fourth communication unit;
the third processor is connected with the fourth communication unit.
4. The apparatus of claim 1, further comprising:
the maintenance tool is respectively connected with the first controller and the second controller through a network.
5. The apparatus of claim 1, further comprising:
and the nuclear power plant system is connected with the second controller through a ring network.
6. The apparatus of claim 1, further comprising:
the field instrument is respectively connected with the first controller and the second controller through hard wiring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221214893.6U CN217607725U (en) | 2022-05-20 | 2022-05-20 | Generator control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221214893.6U CN217607725U (en) | 2022-05-20 | 2022-05-20 | Generator control device |
Publications (1)
| Publication Number | Publication Date |
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| CN217607725U true CN217607725U (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221214893.6U Active CN217607725U (en) | 2022-05-20 | 2022-05-20 | Generator control device |
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| CN (1) | CN217607725U (en) |
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