CN113806012B - System for integrating functions of embedded equipment of power system and operation method of system - Google Patents
System for integrating functions of embedded equipment of power system and operation method of system Download PDFInfo
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- CN113806012B CN113806012B CN202110943329.1A CN202110943329A CN113806012B CN 113806012 B CN113806012 B CN 113806012B CN 202110943329 A CN202110943329 A CN 202110943329A CN 113806012 B CN113806012 B CN 113806012B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/45575—Starting, stopping, suspending or resuming virtual machine instances
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/45595—Network integration; Enabling network access in virtual machine instances
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Abstract
The invention discloses a system for integrating functions of embedded equipment of a power system, which comprises a VMM (virtual machine monitor), a management module running in the VMM, a message bus module, a plurality of real-time virtual application devices and non-real-time virtual application devices. The VMM adopts an I-type Hypervisor system, a management module operates in a host operating system, a real-time virtual application device operates in a real-time VM, and a non-real-time virtual application device operates in a non-real-time VM; the management module is used for dynamically receiving and analyzing the input command of the user and displaying the execution result of the command on the terminal; the message bus is used for managing message transmission between the module and the virtual application equipment; the real-time virtual application device comprises a management process, an HMI process, a real-time process and a non-real-time process; the non-real-time virtual application device includes a management process, an HMI process, and a non-real-time process. The invention realizes the function of arranging various secondary equipment of the power system in one embedded system.
Description
Technical Field
The invention relates to a technology of secondary equipment of an electric power system in the field of electric power systems, in particular to a system for integrating functions of embedded equipment of an electric power system and an operation method thereof.
Background
The secondary equipment of the power system is auxiliary equipment for monitoring, measuring, controlling, protecting and adjusting primary equipment in the power system, and is an important component of the power system. Plays a decisive role in ensuring the safe and economic operation of the power system and improving the automation level. The secondary equipment of the power system widely adopts an embedded solution, and can flexibly cut out software and hardware modules according to the requirements (functions, reliability, cost, volume, power consumption, environment and the like) of users to form a special system. With the continuous improvement of requirements on the aspects of functional integration, volume, power consumption and the like of secondary equipment of a power system, the requirement of centralizing different functional equipment into one piece of hardware for operation is increasingly urgent, and specific requirements are quite different.
The different application function devices are combined into a novel device, and the requirement is mainly considered from the viewpoint of improving the operation benefit of the device. For example, combining the measurement and control device with the telemechanical device to form an RTU device; combining the measurement and control device with the relay protection device to form a protection and measurement integrated device; combining the PMU and the relay protection device to form the relay protection device with a PMU measurement function; and combining the traveling wave ranging and the relay protection device to form the relay protection device with the traveling wave ranging function.
Running multiple instances of the same type of device in one piece of hardware, the need is mainly from the viewpoints of reducing the cost of the device and reducing the space occupied by the device. For example, the centralized measurement and control device can run a plurality of measurement and control devices at intervals in one device, so that flexible switching and centralized management of the virtual device are realized; RTU with hot standby function, equipment adopts two owner to stand by operation, and when a device overhauld or trouble, can realize hot standby and switch, reduce the outage time that equipment maintenance leads to.
The above-mentioned needs currently mostly employ two solutions, a single embedded system solution and a multiple embedded system solution. The single embedded system solution realizes equipment integration through a set of management and man-machine interfaces, high coupling among functional modules, high difficulty in coordination and development, and difficulty in realizing flexible combination and rapid integration. The solution of the multi-embedded system is that the hardware is integrated into one physical device, so that the multi-set embedded hardware is actually required to be operated simultaneously, the integration level of the device is not high, and the problems of high cost, large volume, difficult heat dissipation and the like are faced.
Disclosure of Invention
The invention aims to: the invention aims to provide a system for integrating functions of embedded equipment of an electric power system, which realizes flexible deployment of functions of secondary equipment of various electric power systems in one embedded system, and the functions of the secondary equipment of various electric power systems are mutually coordinated and cannot be mutually coupled and mutually influenced. The invention also provides an operation method of the system.
The technical scheme is as follows: the invention relates to a system for integrating functions of embedded equipment of a power system, which comprises a VMM (virtual machine monitor), a management module running in the VMM, a message bus module, a plurality of real-time virtual application devices and non-real-time virtual application devices, wherein:
the VMM adopts an I-type Hypervisor system, a management module operates in a host operating system, a real-time virtual application device operates in a real-time VM, and a non-real-time virtual application device operates in the non-real-time VM; the management module is used for dynamically receiving and analyzing an input command of a user, executing the running, stopping and state inquiring commands of the virtual application equipment, and displaying the executing result of the commands on the terminal; the message buses are distributed at the bottom layers of the management module and the virtual application equipment and used for transmitting messages between the management module and the virtual application equipment; the real-time virtual application device comprises a management process, an HMI process, a real-time process and a non-real-time process; the non-real-time virtual application device includes a management process, an HMI process, and a non-real-time process.
The beneficial effects are that: compared with the prior art, the invention has the following advantages: 1. providing a plurality of operating systems for different virtual devices through a virtual technology, wherein each operating system independently operates a single virtual device, and functional modules are not mutually coupled and mutually influenced; 2. the system is provided with a plurality of real-time virtual application devices and non-real-time virtual application devices respectively, so that different requirements of different secondary devices of the power system on real-time performance are well met, and the cooperative operation of a plurality of devices of the same or different types is realized.
Furthermore, the management process is responsible for loading the virtual application equipment and has the functions of starting and stopping the virtual application equipment, inquiring the running state of the virtual application equipment, managing the process, managing parameters, debugging variables, debugging memories and refreshing firmware.
Further, the HMI process is connected with the man-machine software through a network, uploads data of the virtual application device to the man-machine software, provides basic information display such as analog quantity and switching value real-time value display, report record display, waveform data reading, parameter reading, modification, version and the like for a user through a man-machine software interface, and executes an on-site command.
Further, the real-time process comprises a sampling module, a logic calculation module, a data exchange module, a report recording module and a waveform recording module, and the process is set to be high in priority.
Further, the non-real-time process comprises a communication rule module, and the process is set to be of a common priority.
Furthermore, the management module is connected with the device operation management software through a network, and dynamically receives and analyzes the input command of the user.
Further, the operation method of the system comprises the following steps:
step one: after the system is electrified, a management module is operated, the management module establishes communication with management processes in the plurality of virtual application devices through a message bus, after the communication is successful, the management processes wait for a next command, and the management module updates the conditions of the plurality of virtual application devices according to the feedback condition of the management processes;
step two: the management module is connected with device operation management software of a user side through a network, and the device operation management software sends a start command, a stop command and a state query command to the management module;
step three: the management module receives and analyzes the corresponding command, forwards the command to the virtual application equipment through the message bus, and if the management process in the corresponding virtual application equipment receives the start command, the step four is carried out; if the management process in the corresponding virtual application equipment receives a command of 'terminate', the process goes to the fifth step; if the management process in the corresponding virtual application equipment receives a command of 'state inquiry', the step six is carried out;
step four: after receiving the start command, the management process in the corresponding virtual application device loads the HMI process and the real-time process and sets priority and non-real-time process if the virtual application device is a real-time virtual application device, and returns the execution result to the management module through the message bus; if the virtual application equipment is non-real-time virtual application equipment, loading an HMI process and a non-real-time process, and returning an execution result to the management module through a message bus;
step five: after receiving the 'terminate' command, if the virtual application device is a real-time virtual application device, closing the HMI process, the real-time process and the non-real-time process, and returning the execution result to the management module through the message bus; if the virtual application equipment is non-real-time virtual application equipment, closing the HMI process and the non-real-time process, and returning an execution result to the management module through the message bus;
step six: after receiving the command of 'state inquiry', the management process in the corresponding virtual application equipment returns whether the virtual application equipment is in an operating state, the execution times of periodic tasks and the system load condition to the management module through the message bus.
The beneficial effects are that: compared with the prior art, the invention has the following advantages: the user directly issues commands such as start, stop, query and the like through the device running software, and corresponding command execution results are obtained through the system running steps.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the architecture of the system embodying the present invention;
FIG. 3 is a flowchart illustrating the steps performed after power-up of the system embodying the present invention;
FIG. 4 is a schematic diagram of an interface for operation management functions of a device embodying the present invention;
FIG. 5 is a functional interface diagram of a system management process embodying the present invention;
FIG. 6 is a schematic diagram of an HMI process function interface embodying the present invention.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the system of the present invention includes a VMM and a management module, a message bus module, a plurality of real-time virtual application devices and a non-real-time virtual application device running on the VMM. The real-time virtual application equipment comprises a management process, an HMI process, a real-time process and a non-real-time process; the non-real-time virtual application device includes a management process, an HMI process, and a non-real-time process.
The method for realizing the functional integration of the secondary equipment of the power system by the system is shown in fig. 2-6:
as shown in fig. 2, a hardware system operated by the above embedded system is built based on a high-performance multi-core processor, an ACRN platform is deployed on the hardware system, the ACRN platform belongs to a type I Hypervisor system, and a real-time condition is provided for deploying a real-time VM on the VMM. After the ACRN platform is deployed, a host operating system is provided, a plurality of VMs can be operated, and the VM can select to deploy a real-time VM or a non-real-time VM by adopting a common Linux operating system. The non-real-time VM adopts a common Linux operating system, and the real-time VM adopts a PREMPT-RT kernel real-time patch on the basis of the common Linux operating system to improve the real-time performance of the VM. The management module operates in a host operating system, the real-time virtual application device operates in a real-time VM, the non-real-time virtual application device operates in a non-real-time VM, and one VM corresponds to one virtual application device. For example: the real-time performance requirements of the relay protection device, the measurement and control device and the PMU device are high, and the corresponding real-time virtual application equipment operates in the real-time VM. The real-time performance requirements of the telecontrol device and the messaging substation are not high, and the corresponding non-real-time virtual application equipment runs in the non-real-time VM.
With reference to fig. 2 and 3, the host operating system and the VM have independent network port devices, and the message bus is implemented based on network communication. The management module running in the host operating system is used as a communication client, the management process running in the VM is used as a communication server, and the management communication based on the message bus is realized through the communication protocol convention of the bottom layers at the two ends.
After the system is powered on, the system enters a host operating system. Firstly, a host operating system starts a script operation management module according to an operating system; then, the management module sequentially loads corresponding VMs according to the virtual application equipment configuration list; then, after the VM is loaded, loading a management process according to the starting script; then, after the management process is operated, communication is established with a management module in a host operating system through a message bus; then, the management process informs the management module that the VM is successfully loaded, the management process is already running and waits for a further new command; finally, if the management module waits for and receives the report of the VM, the state of the virtual application device is updated according to the feedback condition of the management process in each VM; if the report of the VM is not received, judging whether to wait for overtime, if not, continuing waiting, and if overtime, updating the condition of the virtual application equipment.
With reference to fig. 2 and 4, a management module running in the host operating system is connected to the device running management software on the user side through a network. The management module running in the host operating system is used as a communication server, and the device on the user side runs management software as a client. The device runs the management software to obtain all virtual application equipment lists deployed by the system from the management module, and a user executes 'start', 'stop' and 'state inquiry' commands on the virtual application equipment in the lists so as to achieve the purposes of switching on and off and monitoring the virtual application equipment.
As shown in fig. 4, the virtual application device is updated and the management module is connected with the device running management software on the user side through the network, the user sends a "start" command to the management module through the device running management software, and the management module accepts the corresponding command and issues the "start" command to the corresponding virtual application device through the message bus. After receiving the start command, the management process running in the corresponding VM loads the HMI process, the real-time process and the non-real-time process. Wherein the real-time process and the non-real-time process are one or more; when deploying the real-time VM, the real-time process is set to be high-priority; non-real time deployment, VM does not contain real time processes. And after the management process monitors that the initialization of all the loading processes is finished, returning a virtual application device 'start success' command to the management module, and otherwise, returning a 'start failure' command.
As shown in fig. 4, when the user transmits a "terminate" command to the management module through the device running management software, the management module accepts the corresponding command and issues the "terminate" command to the corresponding virtual application device through the message bus. After receiving the 'terminate' command, the management process running in the corresponding VM closes the HMI process, the real-time process and the non-real-time process. The real-time VM is deployed with real-time processes, and the non-real-time VM is deployed without real-time processes. And after the management process monitors that all the processes exit, returning a termination success command of the virtual application device to the management module, otherwise, returning a termination failure command. The management process does not exit operation after the operation is completed, and waits for the management module to send a command again.
As shown in fig. 4, when the user runs the management software through the device and sends a "status query" command to the management module, the management module accepts the corresponding command and issues the "status query" command to the corresponding virtual application device through the message bus. After receiving the 'state inquiry' command, the management process running in the corresponding VM returns the current running state of the virtual application equipment to the management module, including information such as whether the virtual application equipment is in the running state, the number of times of periodic task execution, the system load condition and the like.
As shown in fig. 2 and 5, the management process running in the VM performs the functions of process management and parameter management during the normal running process of the virtual application device. Meanwhile, the management process is connected with the debugging software through a network, the management process serves as a server side, and the debugging software serves as a client side. The debugging software can carry out variable debugging, memory debugging, firmware refreshing and other debugging operations on the virtual application equipment through the management process.
Referring to fig. 2 and fig. 6, an HMI process running in a VM is connected to a man-machine software through a network, the HMI process serves as a server side, and the man-machine software serves as a client side. The human-machine software obtains the data of the virtual application equipment through the HMI process, and the human-machine software interface can provide the user with basic information display such as analog quantity and switching value real-time value display, report record display, waveform data reading, parameter reading and modification, version and the like, and execute man-machine functions such as in-situ command and the like.
Claims (5)
1. A system for integrating functions of embedded devices of a power system, the system comprising a VMM, and a management module, a message bus module, a plurality of real-time virtual application devices and a non-real-time virtual application device running in the VMM, wherein:
the VMM adopts an I-type Hypervisor system, a management module operates in a host operating system, real-time virtual application equipment operates in a real-time VM, and non-real-time virtual application equipment operates in a non-real-time VM;
the management module is used for dynamically receiving and analyzing an input command of a user, executing the command of running, stopping and inquiring the state of the virtual application equipment, and displaying the command execution result at the terminal;
the message buses are distributed at the bottom layers of the management module and the virtual application equipment and are used for message transmission between the management module and the virtual application equipment;
the real-time virtual application equipment comprises a management process, an HMI process, a real-time process and a non-real-time process; the real-time process comprises a sampling module, a logic calculation module, a data exchange module, a report recording module and a waveform recording module, and the process is set to be of high priority; the non-real-time process comprises a communication protocol module, and the process is set to be of a common priority;
the non-real-time virtual application device comprises a management process, an HMI process and a non-real-time process.
2. The system according to claim 1, wherein: the management process is responsible for loading the virtual application equipment and has the functions of starting and stopping the virtual application equipment, inquiring the running state of the virtual application equipment, managing the process, managing parameters, debugging variables, debugging memories and refreshing firmware.
3. The system according to claim 1, wherein: the HMI process is connected with the human-machine software through a network, the data of the virtual application equipment are uploaded to the human-machine software, and real-time value display of analog quantity and switching value, report record display, waveform data reading, parameter reading and basic information display of modification and version are provided for a user through a human-machine software interface, and in-situ command is executed.
4. The system according to claim 1, wherein: the management module is connected with the device operation management software through a network, and dynamically receives and analyzes the input command of the user.
5. A method of operating a system according to any one of claims 1 to 4, wherein the method comprises the steps of:
step one: after the system is electrified, a management module is operated, the management module establishes communication with management processes in the plurality of virtual application devices through a message bus, after the communication is successful, the management processes wait for a next command, and the management module updates the conditions of the plurality of virtual application devices according to the feedback condition of the management processes;
step two: the management module is connected with device operation management software of a user side through a network, and the device operation management software sends a start command, a stop command and a state query command to the management module;
step three: the management module receives and analyzes the corresponding command, forwards the command to the virtual application equipment through the message bus, and if the management process in the corresponding virtual application equipment receives the start command, the process goes to the fourth step; if the management process in the corresponding virtual application equipment receives a command of 'terminate', the process goes to the fifth step; if the management process in the corresponding virtual application equipment receives a command of 'state inquiry', the step six is carried out;
step four: after receiving the start command, the management process in the corresponding virtual application device loads the HMI process and the real-time process and sets priority and non-real-time process if the virtual application device is a real-time virtual application device, and returns the execution result to the management module through the message bus; if the virtual application equipment is non-real-time virtual application equipment, loading an HMI process and a non-real-time process, and returning an execution result to the management module through a message bus;
step five: after receiving the 'terminate' command, if the virtual application device is a real-time virtual application device, closing the HMI process, the real-time process and the non-real-time process, and returning the execution result to the management module through the message bus; if the virtual application equipment is non-real-time virtual application equipment, closing an HMI process and a non-real-time process, and returning an execution result to the management module through a message bus;
step six: after receiving the command of 'state inquiry', the management process in the corresponding virtual application equipment returns whether the virtual application equipment is in an operating state, the execution times of periodic tasks and the system load condition to the management module through the message bus.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106445640A (en) * | 2016-10-20 | 2017-02-22 | 南京南瑞继保电气有限公司 | Running method for embedded type virtual device and system |
| CN112667420A (en) * | 2021-01-18 | 2021-04-16 | 科东(广州)软件科技有限公司 | Method, device, equipment and storage medium for realizing internal communication of heterogeneous system |
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| US20160014078A1 (en) * | 2014-07-10 | 2016-01-14 | Sven Schrecker | Communications gateway security management |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106445640A (en) * | 2016-10-20 | 2017-02-22 | 南京南瑞继保电气有限公司 | Running method for embedded type virtual device and system |
| CN112667420A (en) * | 2021-01-18 | 2021-04-16 | 科东(广州)软件科技有限公司 | Method, device, equipment and storage medium for realizing internal communication of heterogeneous system |
Non-Patent Citations (3)
| Title |
|---|
| M. Richardson ; Sandelman Software Works ; C. Wallace ; Red Hound Software ; W. Pan ; Huawei Technologies ; .Use cases for Remote Attestation common encodings draft-richardson-rats-usecases-07.IETF .2020,全文. * |
| 王冲. 采用全虚拟化技术的多嵌入式操作系统的研究与实现.中国优秀硕士学位论文全文数据库.2014,全文. * |
| 采用全虚拟化技术的多嵌入式操作系统的研究与实现;杨霞;中国优秀硕士学位论文全文数据库;全文 * |
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