CN116706954A - IEC 61850-based energy storage hierarchical control system and control method - Google Patents
IEC 61850-based energy storage hierarchical control system and control method Download PDFInfo
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
- H02J13/00026—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
Abstract
The application discloses an IEC 61850-based hierarchical control system and a control method, wherein the scheme provided by the application can reduce the execution burden of a single controller algorithm by adopting a master multi-slave control system architecture, quicken the operation efficiency, and the master-slave hierarchical control system has low performance requirements on the single controller, can use embedded equipment as a controller, has strong expansibility, can effectively reduce the cost of energy storage station control equipment, and meanwhile, based on the master multi-slave system architecture and IEC61850 protocol, the central controller distributes the power data of each slave controller according to the received power control instruction and state data, and then distributes power target data for each PCS device managed by each slave controller, so that the comprehensive utilization of calculation power resources can be realized by adopting a calculation power multi-stage distribution mode, and the hierarchical control system is better applicable to energy storage power stations with larger scale.
Description
Technical Field
The application relates to the technical field of electric power energy storage control, in particular to an IEC 61850-based energy storage hierarchical control system and a control method.
Background
After the energy storage system receives power instructions of the power dispatching department AGC (Automatic Generation Control, automatic power generation control) and AVC (Automatic Voltage Control ), the power instructions need to be processed in real time, and the optimally distributed power is transmitted to each PCS (Power Conversion System, energy storage converter) control device of the energy storage station. Meanwhile, how to quickly and accurately transmit the distributed instruction is an important index of performance quality of an EMS (Energy Management System ) controller in the energy storage energy management system, and is also one of the current research directions of the heavy point of the energy storage controller.
The current energy storage station control system architecture generally adopts a distribution scheme: the energy storage station is provided with a controller for calculating PCS output distribution in the whole station, and the calculation result is transmitted to each PCS through a Modbus protocol. However, when the energy storage power station is large in scale, the response speed index of the instruction is difficult to meet the requirements of the relevant national standards.
Disclosure of Invention
The application provides an IEC 61850-based energy storage hierarchical control system and a control method, which are used for solving the technical problem that the existing system architecture is difficult to meet the requirements of related national standards.
To solve the above technical problem, a first aspect of the present application provides an IEC 61850-based hierarchical control system for energy storage, the control system comprising: the central controller is in communication connection with each of the auxiliary controllers, wherein the central controller is used for connecting an operator station and/or a remote control device, and the auxiliary controllers are used for connecting PCS devices;
the central controller is configured to: according to the received power control command and state data, performing power distribution by running a first power distribution algorithm built in the central controller to obtain power control target values of all the auxiliary controllers, and issuing the power command target values to the corresponding auxiliary controllers, wherein the power control command specifically comprises the following steps: and the control instruction sent by the operator station or the remote control device, and the state data comprise: according to the state data of the energy storage station and the internal state parameters of the central controller, which are obtained by calculation by the data sent by the auxiliary controller;
the co-controller is configured to: and according to the power control target value obtained from the central controller and the connected PCS equipment state parameter, obtaining the power target value of each PCS equipment by running a second power distribution algorithm built in the cooperative controller, and issuing the power target value to each PCS equipment so as to enable each PCS to perform power control according to the received power target value.
Preferably, the communication connection between the central controller and each of the co-controllers specifically includes:
the central controller and each cooperative controller are in communication connection through a first channel and a second channel, wherein the first channel is a slow communication channel built based on a first communication protocol, and the second channel is a fast communication channel built based on a second communication protocol.
Preferably, the central controller is configured to connect to an operator station and/or a remote control device, and the co-controller is configured to connect to a PCS device, and specifically includes:
the central controller is used for establishing communication connection with the operator station and/or the remote control device through the first channel, and the cooperative controller is used for establishing communication connection with the PCS device through the first channel and the second channel.
Preferably, said issuing each of the power command target values to the corresponding cooperative controller specifically includes:
and issuing each power instruction target value to a corresponding cooperative controller through the second channel.
Preferably, the issuing the power target value to each PCS device specifically includes:
and issuing the power target value to each PCS device through the second channel.
Preferably, the first communication protocol is specifically an MMS protocol.
Preferably, the second communication protocol is specifically a GOOSE protocol.
Furthermore, a second aspect of the present application provides a control method for energy storage hierarchical classification based on IEC61850, which is used for the control system for energy storage hierarchical classification based on IEC61850 provided in the first aspect of the present application, including:
the central controller performs power distribution by running a first power distribution algorithm built in the central controller according to the received power control command and state data to obtain power control target values of all the cooperative controllers, and transmits all the power command target values to the corresponding cooperative controllers;
the assistant controller obtains the power target value of each PCS device by running a second power distribution algorithm built in the assistant controller according to the power control target value obtained from the central controller and the connected PCS device state parameter, and issues the power target value to each PCS device so that each PCS can perform power control according to the received power target value.
Preferably, the communication connection between the central controller and each of the co-controllers specifically includes:
the central controller is in communication connection with each cooperative controller through a first channel and a second channel, wherein the first channel is a slow communication channel built based on a first communication protocol, and the second channel is a fast communication channel built based on a second communication protocol;
the central controller is used for connecting an operator station and/or a remote control device, and the cooperative controller is used for connecting a PCS device and specifically comprises:
the central controller is used for establishing communication connection with the operator station and/or the remote control device through the first channel, and the cooperative controller is used for establishing communication connection with the PCS device through the first channel and the second channel.
Preferably, the first communication protocol is specifically an MMS protocol; the second communication protocol is specifically a GOOSE protocol.
From the above technical scheme, the application has the following advantages:
the application discloses an IEC 61850-based hierarchical control system and a control method, wherein the scheme provided by the application can reduce the execution burden of a single controller algorithm by adopting a master multi-slave control system architecture, quicken the operation efficiency, and the master-slave hierarchical control system has low performance requirements on the single controller, can use embedded equipment as a controller, has strong expansibility, can effectively reduce the cost of energy storage station control equipment, and meanwhile, based on the master multi-slave system architecture and IEC61850 protocol, the central controller distributes the power data of each slave controller according to the received power control instruction and state data, and then distributes power target data for each PCS device managed by each slave controller, so that the comprehensive utilization of calculation power resources can be realized by adopting a calculation power multi-stage distribution mode, and the hierarchical control system is better applicable to energy storage power stations with larger scale.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an energy storage hierarchical control system based on IEC 61850.
Fig. 2 is a communication configuration flow chart of each component in the energy storage hierarchical control system based on IEC 61850.
Fig. 3 is a flow chart of a control method of energy storage layering and grading based on IEC 61850.
Wherein, the reference numerals include:
z: a central controller; C. an operator station; s: a front-end server; y: a tele-motion device; x: a cooperative controller; m is the serial number of the cooperative controller; PCSmn: an nth PCS device under the mth co-controller.
Detailed Description
The controller system of the conventional energy storage station is only provided with one controller, and the information communication between the controller and other peripheral equipment usually adopts a Modbus communication protocol, so that the following disadvantages are caused:
1) The adaptability is poor. As the operation complexity of one controller algorithm increases exponentially with the number of PCS of the energy storage station. Under the condition of corresponding large-scale energy storage power stations and multiple PCS operation, the performance index required by national standards is difficult to meet, and the performance and cost requirements on the controller are high.
2) The conventional communication performance is low. By adopting Modbus communication based on connection, the information transmission speed is low, the communication time is long, the instruction receiving and transmitting delay time is prolonged, and the power response process of the whole energy storage power station is slow.
3) Important data and instructions cannot be classified. When the traditional communication data volume with the same priority is large, network blocking can be caused, so that the response speed of the whole station is slow, and the efficiency is low.
In view of the above, the embodiment of the application provides an IEC 61850-based energy storage hierarchical control system and a control method, which are used for solving the technical problem that the existing system architecture is difficult to meet the requirements of the related national standards.
In order to make the objects, features and advantages of the present application more comprehensible, the technical solutions in the embodiments of the present application are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, a first embodiment of the present application provides an IEC 61850-based hierarchical control system for energy storage, where the energy storage control system is composed of a central controller and a plurality of co-controllers, and forms an energy storage station EMS system together with a front-end server (including a real-time data server and a history data server), and forms an energy storage monitoring system together with a PCS, a BMS (battery management system), a remote operation and an electrical protection device to construct an MMS network and a GOOSE network; the energy storage controller realizes the power regulation of the energy storage station, and comprises the functions of active power regulation, reactive power regulation, AGC regulation, AVC regulation, primary frequency modulation and the like.
The control system provided in this embodiment includes: the central controller is respectively in communication connection with each of the auxiliary controllers, wherein the central controller is used for connecting an operator station and/or a remote control device, and the auxiliary controllers are used for connecting PCS devices;
the central controller is configured to: according to the received power control command and state data, performing power distribution by running a first power distribution algorithm built in the central controller to obtain power control target values of all the auxiliary controllers, and issuing the power command target values to the corresponding auxiliary controllers, wherein the power control command specifically comprises the following steps: the control command sent by the operator station or the remote control device, and the state data specifically include: the data reported by each cooperative controller can be used for calculating the state and the data of the whole energy storage station and the internal state and parameters of the central controller;
the co-controller is configured to: and according to the power control target value obtained from the central controller and the connected PCS equipment state parameter, obtaining the power target value of each PCS equipment by running a second power distribution algorithm built in the cooperative controller, and issuing the power target value to each PCS equipment so that each PCS performs power control according to the received power target value.
More specifically, the communication connection between the central controller and each of the co-controllers specifically includes:
and the central controller is in communication connection with each auxiliary controller through a first channel and a second channel, wherein the first channel is a slow communication channel built based on a first communication protocol, and the second channel is a fast communication channel built based on a second communication protocol.
It is understood that the fast channel and the slow channel mentioned in this embodiment only represent the communication efficiency of the channel, which is faster or slower than the other channel mentioned in this embodiment.
More specifically, the central controller is configured to connect to the operator station and/or the telemechanical control device, and the co-controller is configured to connect to the PCS device, specifically comprising:
the central controller is used for establishing communication connection with the operator station and/or the remote control device through the first channel, and the cooperative controller is used for establishing communication connection with the PCS device through the first channel and the second channel.
More specifically, issuing the respective power command target values to the corresponding co-controllers specifically includes:
and issuing each power instruction target value to the corresponding cooperative controller through the second channel.
More specifically, the publishing of the power target value to each PCS device specifically includes:
and issuing the power target value to each PCS device through a second channel.
More specifically, the first communication protocol is specifically an MMS protocol.
More specifically, the second communication protocol is specifically a GOOSE protocol.
It should be noted that, in the control system of this embodiment, one central controller may control multiple co-controllers, where one co-controller may be connected to control multiple PCS; the central controller receives power instructions from an operator station or a remote control through an MMS protocol, and simultaneously subscribes to emergency data and acquires non-emergency data through the GOOSE protocol from each auxiliary controller; the central controller runs a controller algorithm according to the data, obtains power instruction targets of all the coordinated controllers, and distributes the power target values of all the coordinated controllers calculated by the central controller algorithm to all the coordinated controllers through a GOOSE protocol; and each coordination controller obtains the power target value of each PCS through a coordination controller algorithm according to the subscribed power target value obtained from the central controller and the state parameter sent by the PCS under control, and issues the power target value to each PCS through a GOOSE protocol, so that the power is quickly regulated.
Compared with the existing architecture, the system architecture scheme provided by the embodiment designs a multi-level controller deployment structure in a large-scale energy storage power station control system, so that the execution load of a single controller algorithm can be reduced, and the operation efficiency is accelerated. The master-slave architecture layered control system has low performance requirements on a single controller, can use embedded equipment as the controller, and can effectively reduce the cost of the energy storage station control equipment. The data received and transmitted by the controller are classified according to the urgency of the light and the urgency of the heavy, the data with high speed requirements can be issued through a GOOSE protocol, the sending time of instructions or data is shortened, and the data with low time requirements are transmitted by adopting an MMS protocol. The hierarchical control system with the master-slave structure is suitable for energy storage power stations with different scales, and is easy to transplant schemes and add cutting designs for controllers with different scales. The use of the IEC61850 protocol for electric power is convenient for the access of equipment of different factories and the unification, compatibility and expansion of protocols.
Further, as shown in fig. 2, the deployment flow of each component in the control system is specifically as follows:
1. the deployment flow of the central controller is as follows:
(1) Determining the number of the coordination controllers according to the capacity of the energy storage station, the number of PCS and the processing capacity of the coordination controllers;
(2) Central controller point table configuration:
a) Determining a point table of a master control, a remote control, a client and a cooperative controller;
b) Classifying the communication data point table according to the application emergency degree, and classifying the communication data points into two categories of MMS and GOOSE channel transmission;
(3) CID file modeling for central controller MMS server
a) Setting MMS server network configuration and IED equipment names according to CID file specifications and templates;
b) Creating corresponding IEC61850 data attributes, data objects and logical node models according to the remote measurement and remote signaling data types of the communication point table;
c) Instantiating a logic node, and initializing telemetry and remote signaling data objects and data attribute values under the logic node;
d) Creating different data sets for specific applications of telemetry and telemetry instance data;
e) Creating a corresponding number of report control blocks according to the data set, binding the report and the data set, and defining report types, report generating conditions, maximum connection number of the client and sending reason configuration information;
f) Creating corresponding IEC61850 data attributes, data objects and logical node models according to remote control and remote regulation data types of the communication point table;
g) And instantiating the logic node, and initializing remote control, remote adjustment data objects and data attribute model values under the logic node.
(4) Modeling GOOSE publishers that communicate with a central controller and a coordination controller:
a) Adding a corresponding number of GOOSE communication configurations into the CID file according to the number of the controllers: MAC-Address, APPID, VLAN-PRIORITY, VLAN-ID;
b) Creating a corresponding IEC61850 data model according to the GOOSE communication point table;
c) Instantiating a GOOSE data model and initializing data objects and attributes;
d) Creating a corresponding data set according to a specific application;
e) And creating a corresponding number of GOOSE control blocks according to the GOOSE data set, binding the control blocks and the data set, and configuring a control block ID.
(5) Configuring GOOSE subscribers of the central controller communicating with the coordination controller:
and acquiring GOOSE control blocks and data set references issued by each co-controller according to the CID file of the co-controller, and adding the GOOSE control blocks and the data set references and the MAC-Address, APPID to the software configuration of the central controller.
(6) Configuring MMS clients for communication of a central controller with a co-controller
Subscribing the report of the co-controller according to the CID file of the co-controller.
2. Coordination controller configuration:
(1) Coordinated controller point table configuration
a) Determining a communication point table of a co-controller, a central controller and a PCS (personal communication System);
b) Classifying according to the transmission emergency degree of the communication data point table, and respectively distributing the data points to MMS and GOOSE channels.
(2) Coordinate controller MMS server to perform CID file modeling
a) Setting network configuration of a cooperative controller and a central controller MMS server according to CID file specifications and templates, and obtaining IED equipment names;
b) Creating corresponding IEC61850 data attributes, data objects and logical node models according to the remote measurement and remote signaling data types of the communication point table;
c) Instantiating a logic node, and initializing telemetry and remote signaling data objects and data attribute values under the logic node;
d) Creating different data sets for specific applications of telemetry and telemetry instance data;
e) Creating a corresponding number of report control blocks according to the data set, binding the report and the data set, and defining report types, report generating conditions, maximum connection number of the client and sending reason configuration information;
f) Creating corresponding IEC61850 data attributes, data objects and logical node models according to remote control and remote regulation data types of the communication point table;
g) And instantiating the logic node, and initializing remote control, remote adjustment data objects and data attribute model values under the logic node.
(3) The GOOSE publisher, which the coordination controller communicates with the central controller, models:
a) Adding GOOSE communication configuration: MAC-Address, APPID, VLAN-PRIORITY, VLAN-ID;
b) Creating a corresponding IEC61850 data model according to the GOOSE communication point table;
c) Instantiating a GOOSE data model and initializing data objects and attributes;
d) Creating a corresponding data set by the actual application;
e) And creating a corresponding number of GOOSE control blocks according to the GOOSE data set, binding the control blocks and the data set, and configuring a control block ID.
(4) The GOOSE subscribers that the coordination controller communicates with the central controller are configured to:
based on the central controller CID file, the central controller GOOSE control block and dataset references, MAC-Address, APPID are obtained and added to the co-controller software configuration.
(5) Modeling is carried out by a GOOSE publisher communicated with the PCS by the coordination controller:
a) Adding GOOSE communication configuration: MAC-Address, APPID, VLAN-PRIORITY, VLAN-ID;
b) Creating a corresponding IEC61850 data model according to the GOOSE communication point table;
c) Instantiating a GOOSE data model and initializing data objects and attributes;
d) Creating a corresponding data set by the actual application;
e) And creating a corresponding number of GOOSE control blocks according to the GOOSE data set, binding the control blocks and the data set, and configuring a control block ID.
(6) The co-controller configures with GOOSE subscribers in communication with the PCS:
based on the PCS CID file, the PCS GOOSE control block and data set references, MAC-Address, APPID, are obtained and added to the co-controller software configuration.
(7) The coordination controller is configured with the MMS client side of PCS communication:
and subscribing the PCS report according to the CID file of the PCS.
The above is a detailed description of an embodiment of the control system for energy storage hierarchical classification based on IEC61850 provided by the application, and the following is a detailed description of the control method for energy storage hierarchical classification based on IEC61850 provided by the application.
Referring to fig. 3, an IEC 61850-based control method for energy storage hierarchical classification is provided for an IEC 61850-based control system according to any one of claims 1 to 7, and is characterized by comprising:
step 101, the central controller performs power distribution by running a first power distribution algorithm built in the central controller according to the received power control command and state data to obtain power control target values of each cooperative controller, and transmits each power command target value to the corresponding cooperative controller;
step 102, the co-controller obtains the power target value of each PCS device by running a second power distribution algorithm built in the co-controller according to the power control target value obtained from the central controller and the connected PCS device state parameter, and issues the power target value to each PCS device, so that each PCS performs power control according to the received power target value.
Further, the communication connection between the central controller and each co-controller specifically includes:
the central controller is in communication connection with each auxiliary controller through a first channel and a second channel, wherein the first channel is a slow communication channel built based on a first communication protocol, and the second channel is a fast communication channel built based on a second communication protocol;
the central controller is used for connecting an operator station and/or a remote control device, and the cooperative controller is used for connecting PCS equipment and specifically comprises:
the central controller is used for establishing communication connection with the operator station and/or the remote control device through the first channel, and the cooperative controller is used for establishing communication connection with the PCS device through the first channel and the second channel.
Further, the first communication protocol is specifically an MMS protocol; the second communication protocol is in particular the GOOSE protocol.
In the control system, one central controller can control a plurality of auxiliary controllers, and one auxiliary controller can be connected with a plurality of PCSs; the central controller receives power instructions from an operator station or a remote control through an MMS protocol, and simultaneously subscribes to emergency data and acquires non-emergency data through the GOOSE protocol from each auxiliary controller; the central controller runs a controller algorithm according to the data, obtains power instruction targets of all the coordinated controllers, and distributes the power target values of all the coordinated controllers calculated by the central controller algorithm to all the coordinated controllers through a GOOSE protocol; and each coordination controller obtains the power target value of each PCS through a coordination controller algorithm according to the subscribed power target value obtained from the central controller and the state parameter sent by the PCS under control, and issues the power target value to each PCS through a GOOSE protocol, so that the power is quickly regulated.
The method provided by the application is based on a system architecture of one master and multiple slaves and IEC61850 protocol, and the central controller distributes the power data of each co-controller according to the received power control instruction and state data, and then each co-controller distributes power target data for each PCS device managed by each co-controller, so that the comprehensive utilization of computing power resources is realized by a computing power multi-stage distribution mode, and the method can be better suitable for large-scale energy storage power stations
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
The terms "first," "second," "third," "fourth," and the like in the description of the application and in the above figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The units described as separate units may or may not be physically separate, and units shown 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 units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. An IEC 61850-based hierarchical control system for energy storage, the control system comprising: the central controller is in communication connection with each of the auxiliary controllers, wherein the central controller is used for connecting an operator station and/or a remote control device, and the auxiliary controllers are used for connecting PCS devices;
the central controller is configured to: according to the received power control command and state data, performing power distribution by running a first power distribution algorithm built in the central controller to obtain power control target values of all the auxiliary controllers, and issuing the power command target values to the corresponding auxiliary controllers, wherein the power control command specifically comprises the following steps: and the control instruction sent by the operator station or the remote control device, and the state data comprise: according to the state data of the energy storage station and the internal state parameters of the central controller, which are obtained by calculation by the data sent by the auxiliary controller;
the co-controller is configured to: and according to the power control target value obtained from the central controller and the connected PCS equipment state parameter, obtaining the power target value of each PCS equipment by running a second power distribution algorithm built in the cooperative controller, and issuing the power target value to each PCS equipment so as to enable each PCS to perform power control according to the received power target value.
2. The IEC 61850-based hierarchical energy storage control system according to claim 1, wherein the central controller is in communication connection with each of the co-controllers, respectively, specifically comprising:
the central controller and each cooperative controller are in communication connection through a first channel and a second channel, wherein the first channel is a slow communication channel built based on a first communication protocol, and the second channel is a fast communication channel built based on a second communication protocol.
3. The IEC 61850-based energy storage hierarchical control system according to claim 2, wherein the central controller is configured to connect to an operator station and/or a telemechanical control device, and the co-controller is configured to connect to a PCS device, specifically comprising:
the central controller is used for establishing communication connection with the operator station and/or the remote control device through the first channel, and the cooperative controller is used for establishing communication connection with the PCS device through the first channel and the second channel.
4. The IEC 61850-based energy storage hierarchical control system according to claim 2, wherein said issuing each of said power command target values to the corresponding co-controllers comprises in particular:
and issuing each power instruction target value to a corresponding cooperative controller through the second channel.
5. The IEC 61850-based energy storage hierarchical control system according to claim 2, wherein the publishing the power target value to each PCS device specifically comprises:
and issuing the power target value to each PCS device through the second channel.
6. An IEC61850 based hierarchical energy storage control system according to claim 2, wherein the first communication protocol is in particular an MMS protocol.
7. The IEC61850 based hierarchical energy storage control system according to claim 2, wherein the second communication protocol is in particular GOOSE protocol.
8. An IEC 61850-based energy storage hierarchical control method for an IEC 61850-based energy storage hierarchical control system according to any one of claims 1 to 7, comprising:
the central controller performs power distribution by running a first power distribution algorithm built in the central controller according to the received power control command and state data to obtain power control target values of all the cooperative controllers, and transmits all the power command target values to the corresponding cooperative controllers;
the assistant controller obtains the power target value of each PCS device by running a second power distribution algorithm built in the assistant controller according to the power control target value obtained from the central controller and the connected PCS device state parameter, and issues the power target value to each PCS device so that each PCS can perform power control according to the received power target value.
9. The IEC 61850-based hierarchical energy storage control method according to claim 8, wherein the central controller is in communication connection with each of the co-controllers, respectively, specifically comprising:
the central controller is in communication connection with each cooperative controller through a first channel and a second channel, wherein the first channel is a slow communication channel built based on a first communication protocol, and the second channel is a fast communication channel built based on a second communication protocol;
the central controller is used for connecting an operator station and/or a remote control device, and the cooperative controller is used for connecting a PCS device and specifically comprises:
the central controller is used for establishing communication connection with the operator station and/or the remote control device through the first channel, and the cooperative controller is used for establishing communication connection with the PCS device through the first channel and the second channel.
10. The IEC 61850-based energy storage hierarchical control method according to claim 9, wherein the first communication protocol is in particular an MMS protocol; the second communication protocol is specifically a GOOSE protocol.
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