A method and device for dispatching a generating set

Abstract

The present disclosure provides a method and apparatus for dispatching a generating set. The method for dispatching a generating set includes: a dispatching communication server reads real-time power generation dispatching data from a power grid dispatching web page of a power dispatching department located on a public network; the dispatching communication server sends the real-time power generation dispatching data to a distributed control system of a power plant through a preset communication method; and the distributed control system of the power plant controls the power generation amount of the generating set according to the received real-time power generation dispatching data. The technical solution of the present disclosure can achieve real-time control of the power generation amount of the generating sets in a power plant by a power dispatching department.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial control, and particularly to a method and device for scheduling generator sets. Background Art

[0002] Electric power is a basic industry for the development of the country's industry and occupies an extremely important position in the national economy. A momentary interruption of the power industry may cause paralysis in all walks of life, chaos in social and people's living orders, and huge losses to the national economy. Therefore, power enterprises have very high requirements for safe production.

[0003] Power generation enterprises are upstream enterprises in the power industry, and the power generation control system is the control center and the brain of power generation enterprises. The power generation control system is the general term for the entire power plant control system and is a core and important part of the power plant. The power generation control system needs to control various systems of the power plant, including the main unit and auxiliary network, etc. Only when the entire power generation control system operates well can the normal and safe operation of the power plant be ensured. However, to maximize the social and economic benefits of power generation enterprises, it is necessary for power generation enterprises to maintain a balance between power production and social demand and achieve precise control and economical operation of the power plant.

[0004] Since the power dispatching department and power generation enterprises are two independent entities, power generation enterprises generally control the power generation of generator sets according to pre-set annual power generation plans, monthly power generation plans, and daily power generation plans. Even if the power dispatching department formulates a flexible power dispatching plan according to social demand, due to the closed nature of the power plant control system, it is generally difficult for power plants to respond quickly according to the decisions of the dispatching department. Summary of the Invention

[0005] The present invention provides a method and device for scheduling generator sets, which can realize the real-time control of the power generation of generator sets in power plants by the power dispatching department.

[0006] According to the first aspect of the present application, an embodiment of the present invention provides a method for scheduling generator sets, including:

[0007] The scheduling communication server reads real-time power generation dispatching data from the power grid dispatching web page of the power dispatching department located on the public network;

[0008] The scheduling communication server sends the real-time power generation dispatching data to the distributed control system of the power plant through a preset communication method;

[0009] The distributed control system of the power plant controls the power generation of the generator set according to the received real-time power generation dispatching data.

[0010] According to a second aspect of the present application, an embodiment of the present invention provides a device for dispatching a generator set, including: a memory, a processor, and a program for dispatching a generator set stored on the memory and executable on the processor. When the program for dispatching a generator set is executed by the processor, the steps of the above method for dispatching a generator set are implemented.

[0011] According to a third aspect of the present application, an embodiment of the present invention provides a computer-readable storage medium, on which a program for dispatching a generator set is stored. When the program for dispatching a generator set is executed by a processor, the steps of the above method for dispatching a generator set are implemented.

[0012] Compared with the related art, an embodiment of the present invention provides a method and a device for dispatching a generator set. The dispatching communication server reads real-time power generation dispatching data from the power grid dispatching web page of the power dispatching department located on the public network; the dispatching communication server sends the real-time power generation dispatching data to the distributed control system of the power plant through a preset communication method; the distributed control system of the power plant controls the power generation amount of the generator set according to the received real-time power generation dispatching data. The technical solution of the embodiment of the present invention can realize the real-time control of the power generation amount of the generator set in the power plant by the power dispatching department. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a flowchart of a method for dispatching a generator set according to Embodiment 1 of the present invention;

[0014] Figure 2 It is a schematic diagram of a device for dispatching a generator set according to Embodiment 2 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments and features in the present application can be combined with each other arbitrarily.

[0016] The steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0017] Embodiment 1

[0018] As Figure 1 shown, an embodiment of the present invention provides a method for dispatching a generator set, including:

[0019] Step S110, the dispatching communication server reads the real-time power generation dispatching data from the power grid dispatching web page of the power dispatching department located on the public network;

[0020] Step S120, the dispatching communication server sends the real-time power generation dispatching data to the distributed control system of the power plant through a preset communication method;

[0021] Step S130, the distributed control system of the power plant controls the power generation amount of the generator set according to the received real-time power generation dispatching data.

[0022] Among them, the information security of the DCS (Distributed Control System) of the power plant is an important prerequisite for implementing the strategies of building a strong manufacturing country and a strong cyber country, which is related to national security, economic development and social stability. The information security of the DCS system is an important part of the national security strategy. Once the data information and control instructions of the DCS system are stolen, tampered with or damaged by attackers, it will bring major risks to industrial production and social and economic security. Therefore, the power plant directly reads data from the dispatching web page published by the power dispatching department on the public network through a specially set dispatching communication server, and then conducts information interaction with the DCS system through a preset communication method, which can improve the security of the communication between the DCS system and the public network.

[0023] In an exemplary implementation, the real-time power generation dispatching data is an XML (Extensible Markup Language) format file;

[0024] In an exemplary implementation, the real-time power generation dispatching data includes: the identifier of the generator set, the dispatching time point, and the planned output of the generator set within the dispatching cycle indicated by the dispatching time point;

[0025] Among them, the dispatching cycle can be 5 minutes, 10 minutes, 15 minutes, etc.; the setting of the dispatching cycle can be flexibly set according to the needs of the power market.

[0026] In an exemplary implementation, the preset communication method is a communication method based on the Modbus-RTU (Remote Terminal Unit) communication protocol. The Modbus protocol is a serial communication protocol and has currently become the industry standard for communication protocols in the industrial field. RTU is a special computer measurement and control unit with a modular structure designed for long communication distances and harsh industrial field environments. It connects the end actuators to the remote host, has functions of remote data acquisition, control and communication, and can receive operation instructions from the host to control the actions of the end actuators.

[0027] In an exemplary embodiment, the dispatching communication server sends the real-time power generation dispatching data to the distributed control system of the power plant through a preset communication method, including:

[0028] The dispatching communication server sends the real-time power generation dispatching data to the master station of the distributed control system of the power plant through the Modbus-RTU communication protocol;

[0029] The master station determines a list of generating units for power generation control according to the identifiers of the generating units carried in the real-time power generation dispatching data, and determines the slave station corresponding to each generating unit according to the slave station configuration information of the distributed control system of the power plant;

[0030] The master station sends the power generation dispatching data corresponding to each generating unit to the corresponding slave station respectively through the Modbus-RTU communication protocol.

[0031] In an exemplary embodiment, the method further includes:

[0032] Configure a master station and multiple slave stations for the distributed control system of the power plant. The master station is used to receive the real-time power generation dispatching data of all generating units from the dispatching communication server, and the slave station is used to receive the power generation dispatching data of the generating unit controlled by the slave station from the master station; wherein, one slave station manages one generating unit.

[0033] In the above embodiment, the method that the dispatching communication server reads data from the public network and then transmits it to the distributed control system of the power plant is a new and convenient operation method, which provides guarantees for the stability and security of the distributed control system of the power plant. Compared with the conventional information interaction method, the dispatching communication server directly reads the real-time data from the web page, improves the efficiency of the power generation control system's regulation and control, and will not have an adverse impact on production operation. By reading the dispatching data on the web page, the real-time dispatching data of the power grid can be transmitted to the power generation control system (distributed control system) of the power plant, so that the entire power generation control system can make adjustments and preparations in advance (such as 15 minutes, 10 minutes, 5 minutes, etc.) for the subsequent output change, and also makes the operation of the power plant in a better state. The health status and overall machine parameters of the entire power plant are improved, and various indicators and benefits of the power plant will be greatly improved.

[0034] Embodiment 2

[0035] As Figure 2 shown, the embodiment of the present invention provides a device for dispatching generating units, including:

[0036] A dispatching communication server 10 is used to read real-time power generation dispatching data from the power grid dispatching web page of the power dispatching department located on the public network, and send the real-time power generation dispatching data to the distributed control system of the power plant through a preset communication method;

[0037] The distributed control system 20 of the power plant is used to control the power generation amount of the generator set according to the received real-time power generation dispatching data.

[0038] In an exemplary embodiment, the real-time power generation dispatching data includes: the identifier of the generator set, the dispatching time point, and the planned output of the generator set within the dispatching period indicated by the dispatching time point;

[0039] In an exemplary embodiment, the preset communication method is a communication method based on the Modbus-RTU (Remote Terminal Unit) communication protocol.

[0040] In an exemplary embodiment, the dispatching communication server is used to send the real-time power generation dispatching data to the distributed control system of the power plant through the preset communication method in the following manner: sending the real-time power generation dispatching data to the master station of the distributed control system of the power plant through the Modbus-RTU communication protocol; wherein, the master station determines the list of generator sets for power generation control according to the identifier of the generator set carried in the real-time power generation dispatching data, and determines the slave station corresponding to each generator set according to the slave station configuration information of the distributed control system of the power plant; sending the power generation dispatching data corresponding to each generator set to the corresponding slave station through the Modbus-RTU communication protocol.

[0041] In an exemplary embodiment, the distributed control system of the power plant is further used to configure a master station and multiple slave stations. The master station is used to receive the real-time power generation dispatching data of all generator sets from the dispatching communication server, and the slave station is used to receive the power generation dispatching data of the generator set controlled by the slave station from the master station; wherein, one slave station manages one generator set.

[0042] Embodiment 3

[0043] An embodiment of the present invention provides a device for dispatching a generator set, including:

[0044] A memory, a processor, and a program for dispatching a generator set stored on the memory and executable on the processor. When the program for dispatching a generator set is executed by the processor, the steps of the method for dispatching a generator set in the above-mentioned Embodiment 1 are implemented.

[0045] Embodiment 4

[0046] An embodiment of the present invention provides a computer-readable storage medium, on which a program for dispatching a generator set is stored. When the program for dispatching the generator set is executed by a processor, the steps of the method for dispatching the generator set in Embodiment 1 above are implemented.

[0047] Those of ordinary skill in the art can understand that all or some of the steps in the methods disclosed above, and the functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, and their appropriate combinations. In the hardware implementation, the division of the functional modules / units mentioned above does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be executed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or may be implemented as hardware, or may be implemented as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium (or non-transitory medium) and a communication medium (or transitory medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassette, tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, a communication medium typically includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and may include any information delivery medium.

[0048] It should be noted that the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present invention.

Claims

1. A method for scheduling generating units, comprising: The scheduling communication server reads real-time power generation scheduling data from the power grid scheduling web page of the power dispatching department on the public network; The scheduling communication server sends the real-time power generation scheduling data to the distributed control system of the power plant through a preset communication method; The distributed control system of the power plant controls the power generation amount of the generating units according to the received real-time power generation scheduling data; wherein, The real-time power generation scheduling data includes: the identifier of the generating unit, the scheduling time point, and the planned output of the generating unit within the scheduling period indicated by the scheduling time point; The preset communication method is a communication method based on the Modbus-RTU communication protocol; The scheduling communication server sends the real-time power generation scheduling data to the distributed control system of the power plant through a preset communication method, including: The scheduling communication server sends the real-time power generation scheduling data to the master station of the distributed control system of the power plant through the Modbus-RTU communication protocol; the master station determines the list of generating units for power generation control according to the identifier of the generating unit carried in the real-time power generation scheduling data, and determines the slave station corresponding to each generating unit according to the slave station configuration information of the distributed control system of the power plant; the master station sends the power generation scheduling data corresponding to each generating unit to the corresponding slave station through the Modbus-RTU communication protocol; A master station and multiple slave stations are configured for the distributed control system of the power plant. The master station is used to receive the real-time power generation scheduling data of all generating units from the scheduling communication server, and the slave station is used to receive the power generation scheduling data of the generating unit controlled by the slave station from the master station; wherein, one slave station manages one generating unit.

2. The method according to claim 1, characterized in that: The real-time power generation scheduling data is an Extensible Markup Language (XML) format file.

3. A device for scheduling generating units, comprising: A scheduling communication server, configured to read real-time power generation scheduling data from the power grid scheduling web page of the power dispatching department on the public network, and send the real-time power generation scheduling data to the distributed control system of the power plant through a preset communication method; The real-time power generation scheduling data includes: the identifier of the generating unit, the scheduling time point, and the planned output of the generating unit within the scheduling period indicated by the scheduling time point; The distributed control system of the power plant is configured to control the power generation amount of the generating units according to the received real-time power generation scheduling data; wherein, The preset communication method is a communication method based on the Modbus-RTU communication protocol; The scheduling communication server is specifically configured to: The scheduling communication server sends the real-time power generation scheduling data to the master station of the distributed control system of the power plant through the Modbus-RTU communication protocol; the master station determines the list of generating units for power generation control according to the identification of the generating units carried in the real-time power generation scheduling data, and determines the slave station corresponding to each generating unit according to the slave station configuration information of the distributed control system of the power plant; the master station sends the power generation scheduling data corresponding to each generating unit to the corresponding slave station through the Modbus-RTU communication protocol. The distributed control system of the power plant is further configured to configure a master station and multiple slave stations. The master station is used to receive the real-time power generation scheduling data of all generating units from the scheduling communication server, and the slave station is used to receive the power generation scheduling data of the generating unit controlled by the slave station from the master station; wherein, one slave station manages one generating unit.

4. A device for scheduling a generating set, comprising: A memory, a processor, and a program for scheduling generating units stored on the memory and executable on the processor. When the program for scheduling generating units is executed by the processor, the steps of the method for scheduling generating units according to any one of claims 1-2 above are implemented.

5. A computer-readable storage medium, on which a program for scheduling generating units is stored. When the program for scheduling generating units is executed by a processor, the steps of the method for scheduling generating units according to any one of claims 1-2 above are implemented.

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