CN103543721A - Microgrid hierarchical control system modeling method meeting IEC61850 standard - Google Patents
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Abstract
The invention relates to a modeling method of microgrid information communication, and in particular to a microgrid hierarchical control system modeling method meeting IEC61850 standard. The method includes (1), performing information service mapping on the microgrid hierarchical control system; (2), modeling on a server of the microgrid hierarchical control system; (3), modeling on a logic device of the microgrid hierarchical control system. The method meets the IEC61850 standard and is compatible to a microgrid hierarchical control structure design of IEC61400-25 standard, functional modeling is performed on each layer of IED of the microgrid hierarchical control system, interoperability among microgrid devices is realized, conformance testing technical barrier is reduced, microgrid device upgrading and replacing can be benefited, and the microgrid devices can be used when plugged.
Description
Technical field
The present invention relates to a kind of modeling method of micro-electric network information communication, be specifically related to a kind of modeling method of micro-electrical network hierarchy system of the IEC61850 of meeting standard.
Background technology
Micro-electrical network refers to by distributed power source, energy storage device, energy conversion device, relevant load and monitoring, protective device and collects the small-sized electric system of being transported to forming.Power supply in micro-electrical network mostly is the distributed power source that capacity is less, the small unit that contains power electronics interface, comprises the energy storage devices such as miniature gas turbine, fuel cell, photovoltaic cell, small-sized wind power generator group and super capacitor, flywheel and accumulator.They are connected on user's side, have that cost is low, voltage is low and pollute the features such as little.
The operation of micro-electrical network is controlled significant to the economical operation of micro-electrical network high efficient and reliable.In typical hierarchical control framework (with reference to Fig. 2), micro-electrical network Centralized Controller plays the effect of forming a connecting link: one side is accepted upper strata main website energy dispatch command and is handed down to the distributed power source control module of bottom, Real-Time Monitoring underlying device state on the other hand, and on deliver to energy management platform.Wherein, microgrid Centralized Controller also has the independent function of controlling underlying device, this Time Controller be take system stable operation as target, in the controlled range of the power supplys such as accumulator system, photovoltaic generating system, wind generator system, complete Real-Time Scheduling, if desired load is carried out to classification switching, maintain system voltage amplitude, frequency stabilization.
Along with the increase of worsening shortages and the environmental protection pressure of traditional primary energy, distributed power generation, micro-electric power network technique worldwide develop rapidly.But also there are some problems in the promotion and application process of technology.Be mainly reflected in each manufacturer according to the micro-grid monitoring system that is applicable to own devices communicating protocol development, increased intelligent large electrical network and the power scheduling department difficulty to micro-power system monitor and scheduling, greatly increase the cost of secondary development, slowed down the developing steps of micro-electrical network.
IEC61850 standard is the communication protocol of main flow in current electric utility field, be applied at first electric substation automation system (SAS) field, be a set of take realize the standards system towards power system objects unified Modeling that interoperability between intelligent electronic device and interchangeability are object.The application of this standard has at present expanded to electrical power distribution automatization system and distribution type renewable energy application.Distributed energy for diesel generator set, solar cell power generation, fuel cell and four kinds of modes of cogeneration of heat and power in IEC61860-7-420 has proposed system modelling template, IEC61400-25 series standard has been formulated correlation modeling standard specially for wind-power electricity generation, this standard and IEC61850 standard are compatible, are a kind of successions to it.Micro-power supply of following IEC61850 standard traffic model can be realized interchangeability and the interoperability of devices from different manufacturers at an easy rate, is conducive to build the micro-operation of power networks control system that possesses " plug and play " characteristic.
Summary of the invention
For the deficiencies in the prior art, the modeling method that the object of this invention is to provide a kind of micro-electrical network hierarchy system of the IEC61850 of meeting standard, the method proposes to meet micro-electrical network hierarchical control architecture design method of IEC61850 and compatibility specification IEC61400-25 thereof first, each layer of IED to microgrid hierarchy system carried out function modeling, realize the interoperability of microgrid equipment room, reduce uniformity test technical threshold, contribute to the microgrid renewal of the equipment replacement and plug and play.
The object of the invention is to adopt following technical proposals to realize:
The invention provides a kind of modeling method of micro-electrical network hierarchy system of the IEC61850 of meeting standard, described micro-electrical network hierarchy system comprises successively the energy management layer that connects, central control level and key-course on the spot, the station level in the corresponding electric system of described energy management layer; Wall in the corresponding electric system of described central control level and on the spot key-course, electric system comprises process layer, described process layer is electrical network primary equipment, comprises circuit detection and control terminal and switch;
Described energy management layer comprises microgrid energy management main website; Described central control level comprises microgrid Centralized Controller; Described key-course on the spot comprises distributed electrical source controller, load governor and circuit measuring and controlling protective device;
Its improvements are, described method comprises the steps:
<1> carries out information service mapping to micro-electrical network hierarchy system;
<2> carries out modeling to the server of micro-electrical network hierarchy system;
<3> carries out modeling to the logical device of micro-electrical network hierarchy system.
Further, in described step <1>, micro-electrical network hierarchy system physical equipment different from digital transformer substation comprises: physical quantity measurement equipment, primary energy conversion equipment (as blower fan, photovoltaic module etc.) and the conversion equipment that generates electricity by way of merging two or more grid systems (rectification, inversion interface); The modeling of described primary energy conversion equipment, the conversion equipment that generates electricity by way of merging two or more grid systems is unified in distributed electrical source controller and completes;
Micro-electrical network hierarchy system is carried out to information service mapping to be comprised:
A, process of establishing layer gather net;
B, wall modeling; With
C, station level modeling.
Further, in described A, process layer comprises Intellectualized Switchgear, electronic type voltage, current transformer and merge cells;
Process of establishing layer gathers net and comprises: it is real time data that collection circuit measuring and controlling protective device electric current and voltage sampled value and on off state value transmit data, mode is: process of establishing bus, adopts the rapid message of sampled value SAV and transformer substation case GOOSE private network or common network transmission to realize;
Between distributed electrical source controller and distributed power source, adopt internal bus transmission real-time sampling data and control information, internal bus comprises CAN bus and Modbus bus.
Further, described sampled value mode Based on Distributed power-supply controller of electric or circuit measuring and controlling protective device the obtaining of metric data of substantially sampling, transformer substation case model is that microgrid Centralized Controller is controlled with the conversion equipment that generates electricity by way of merging two or more grid systems and status information mutual;
In described B, bay device comprises microgrid Centralized Controller, distributed electrical source controller, environment detector and circuit measuring and controlling protective device; Information interaction between microgrid Centralized Controller and distributed electrical source controller, environment detector and circuit measuring and controlling protective device comprises measured value, state value and control information; Microgrid Centralized Controller adopts Real-Time Control Strategy, and described measured value, state value and control information adopt GOOSE protocol issuance subscribing manner to transmit.
Further, in described C, between bay device and microgrid energy management main website based on MMS (Multimedia Message Service) MMS communicated by letter daily record, warning, " four is distant " and energy scheduling; MMS (Multimedia Message Service) MMS communications applications between bay device is in the parameter setting of the time GOOSE of transformer station controll block and obtain, and adopts the customer end/server mode of bilateral association service; (bilateral association service is a kind of request response mechanism, and client is initiated after request, and server must correctly respond, and communication could correctly be carried out, and monolateral association is with forms of broadcasting communication, does not need response)
Station level and wall message exchange service and functional mapping mode are:
(1) remote control, remote regulating operation adopt the control service of Abstract Common Service Interface ACSI, are mapped to the write operation of MMS (Multimedia Message Service) MMS;
(2) parameter tuning operation adopts the definite value group service of Abstract Common Service Interface ACSI, is mapped to the write operation of MMS (Multimedia Message Service) MMS.
(3) change the report service of remote signalling, SOE, warning function employing Abstract Common Service Interface ACSI, be mapped to the report operation of MMS (Multimedia Message Service) MMS;
(4) log query adopts the log services of Abstract Common Service Interface ACSI, is mapped to MMS (Multimedia Message Service) MMS journalizing.
Further; in described step <2>; server modeling in described microgrid hierarchy system adopts standard modeling principle; according to communication mode, divide accessing points; wherein distributed power source control IED, micro-electrical network centralized control IED, environmental monitoring IED, circuit monitoring and protection IED set up respectively MMS, two accessing points of GOOSE, and microgrid energy management main website arranges MMS (Multimedia Message Service) MMS accessing points.
Further, in described step <3>, the micro-electrical network hierarchy system logical device modeling that meets IEC61850 standard comprises:
(1) IED(IED of microgrid energy management main website refers to intelligent electronic device): master function arranges unity logic equipment LD, and logic node arranges respectively man-machine interface IHMI, automatic archiving managing I ARC, power prediction WPFO, alarm management CALH, physical message logic node LPHD, public information logic node LLN0;
Wherein, physical message logic node LPHD and public information logic node LLN0 are the logic node of each logical device indispensability, describe respectively nameplate information and logical device nameplate and the common information of physical equipment;
(2) microgrid Centralized Controller IED: microgrid Centralized Controller arranges unity logic equipment, logic node arranges respectively and site switch operational mode DOPM, grid-connected dotted state DPST, distributed power source economic load dispatching parameter DCCT site fuse XFUS site switch XCBR, on-off controller CSWI site measurement MMXU;
(3) distributed electrical source controller IED:
Distributed power source comprises wind generator system, photovoltaic generating system and energy-storing and power-generating system, and described wind generator system is connected with wind generator system controller; Described photovoltaic generating system is connected with photovoltaic generating system controller; Described energy-storing and power-generating system is connected with accumulator system controller;
1. wind generator system is controlled IED: blower fan model reference IEC61400-25-2 standard, arranges respectively outlet on-off controller CSWI, outlet breaker XSBR, blower fan inverter control WCNV, direct current by function and measure MMDC, exchange and measure that MMXU, air-blower control WTUR, blade are controlled WTOR, WTRM, generator WGEN, real power control WAPC, idle control WRPC and warning message WALM are controlled in transmission;
2. photovoltaic generating system is controlled IED: outlet on-off controller CSWI, outlet breaker XSBR, inverter control ZINV, direct current are set and measure MMDC, exchange and measure MMXU, photovoltaic array DPVE, photovoltaic array and control DPVC, solar tracking and follow the tracks of that DTRC, photovoltaic controller characteristic DRCT, photovoltaic controller state DRCS, photovoltaic controller are controlled DRCC, photovoltaic controller economy is shared DCCT and action sequence FSEQ;
3. IED is controlled in energy storage: gate out switch controller CSWI, outlet breaker XSBR, inverter control ZINV, direct current measurement MMDC, interchange measurement MMXU, battery status ZBAT, battery control ZBTC, energy storage controller characteristic DRCT, energy storage controller state DRCS, energy storage controller are controlled DRCC, energy storage controller economy is shared DCCT, action sequence FSEQ.
4. environmental monitoring IED: photovoltaic environmental parameter MMET and wind environment parameter WMET;
5. circuit monitoring and protection IED: circuit monitoring and protection IED is divided into measurement and control logic equipment LD and protection logical device LD by function; Logic node is set to: measurement and control logic equipment LD arranges on-off controller CSWI, on-load switch XSWI, measurement MMXU, Detecting Power Harmonics MHAI, out-of-balance current measurement MSQI, circuit mutual inductor TCTR, voltage transformer (VT) TVTR and universal input output GGIO;
Protection logical device LD logic node is set to: public information logic node LLN0, physical message logic node LPHD, instant over current protection PIOC, time delay overcurrent protection PTOC and direction ground protection PSDE.
Compared with the prior art, the beneficial effect that the present invention reaches is:
The modeling method that meets micro-electrical network hierarchy system of IEC61850 standard provided by the invention, be different from the logic node modeling of single IEC61850-7-420 regulation, propose to meet first complete micro-electrical network hierarchical control architecture design method of IEC61850 and compatibility specification IEC61400-25 thereof, station level to microgrid hierarchy system, wall critical system and equipment have carried out function modeling, emphasis has enriched wind-power electricity generation modeling information, realize the interoperability of microgrid equipment room, reduce uniformity test technical threshold, contribute to the microgrid renewal of the equipment replacement and plug and play.
Accompanying drawing explanation
Fig. 1 is the modeling method process flow diagram that the invention provides the micro-electrical network hierarchy system that meets IEC61850 standard;
Fig. 2 is micro-electrical network hierarchy system schematic diagram;
Fig. 3 is micro-electric network information communication construction figure provided by the invention;
Fig. 4 is that distributed power source provided by the invention is controlled IED modeling figure;
Fig. 5 is key device provided by the invention and system modelling figure;
Fig. 6 is that hierarchical control information provided by the invention is moved towards figure.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The invention provides the modeling method process flow diagram of the micro-electrical network hierarchy system that meets IEC61850 standard as shown in Figure 1, described micro-electrical network hierarchy system comprises successively the energy management layer that connects, central control level and key-course on the spot, the station level in the corresponding electric system of described energy management layer; Wall in the corresponding electric system of described central control level and on the spot key-course, electric system comprises process layer, described process layer is electrical network primary equipment, comprises circuit detection and control terminal and switch; Described energy management layer comprises microgrid energy management main website; Described central control level comprises microgrid Centralized Controller; Described key-course on the spot comprises distributed electrical source controller, load governor and circuit measuring and controlling protective device;
Described method comprises the steps:
<1> carries out information service mapping to micro-electrical network hierarchy system:
The micro-grid system Main physical equipment different from digital transformer substation has: physical quantity measurement equipment, primary energy conversion equipment (as blower fan, photovoltaic module etc.) and the equipment that generates electricity by way of merging two or more grid systems (rectification, inversion interface).The publish-subscribe model that wherein physical quantity measurement equipment can transmit according to sampled value (SAV) is set up information model; Primary energy conversion equipment can be set up the distribution subscription breath model of transformer substation case (GOOSE) or the distribution subscription information model of sampled value transmission according to transfer principle separately; The conversion equipment that generates electricity by way of merging two or more grid systems need to be set up distribution subscription information model and the transformer substation case distribution subscription information model of sampled value transmission according to the difference of its function.Wherein sampled value mode is mainly towards the measurement data acquisition of substantially sampling with regard to the process layer of stratum distributed power source controller or circuit measuring and controlling protective device, and transformer substation case model is mainly microgrid central control unit and the mutual of conversion equipment control and status information that generate electricity by way of merging two or more grid systems.Communicating by letter of microgrid energy management main website and microgrid Centralized Controller and distributed power source, circuit measure and control device adopts MMS to communicate by letter, and realizes the functions such as warning, daily record, control (economic load dispatching), SOE.
Micro-electrical network hierarchical control Schema information service mapping should, according to the requirement of real-time of transmission information, be selected adequate information interaction models and communication mapping mode.For simplied system structure, the present invention is unified in the modeling of distributed power source primary energy conversion equipment, the conversion equipment that generates electricity by way of merging two or more grid systems in distributed power source control module and completes, and information service mapping comprises the steps:
A, process of establishing layer gather net:
Circuit detection and control terminal electric current and voltage sampled value and on off state value transmit.This part data belongs to real time data, needs to adopt rapid message.Conventional mode is process of establishing bus at present, adopts SAV and GOOSE private network or common network transmission.Above-mentioned configuration is consistent with conventional digital transformer station, special note not in Fig. 3 system communication arrangement plan.Between distributed electrical source controller and distributed power source, adopt internal bus (as CAN, Modbus) transmission real-time sampling data and control information.
B, wall modeling:
In IED object, build Server object and at least comprise a Server object.Server has described the behavior of physical equipment outside visible (addressable), and each Server has an accessing points at least.The bay device of process layer robotization, to upper and station level devices communicating, is communicated by letter with process layer devices to lower, can adopt different accessing points to communicate with station level and process layer respectively.The upwards communication of bay device to station level equipment, its content is the MMS message not high to requirement of real-time, can create separately an accessing points and complete the communication to substation level equipment.Under this accessing points, select the function group with MMS message communication demand to carry out construction logic equipment.The downward communication of bay device to process layer devices, its content is to the very high GOOSE message of requirement of real-time and SAV message, can create two accessing points and complete respectively the GOOSE communication of process layer devices is communicated by letter with SAV.
Bay device comprises microgrid Centralized Controller, distributed electrical source controller, environment detector and circuit measuring and controlling protective device.Information interaction between microgrid Centralized Controller and the said equipment comprises measured value, state value and control information.Microgrid Centralized Controller adopts Real-Time Control Strategy, and therefore above-mentioned information adopts GOOSE protocol issuance subscribing manner to transmit.
C, station level modeling:
Between bay device and microgrid energy management main website based on MMS (Multimedia Message Service) MMS communicated by letter daily record, warning, " four is distant " and energy scheduling; MMS (Multimedia Message Service) MMS communications applications between bay device is in the parameter setting of the time GOOSE of transformer station controll block and obtain, and adopts the customer end/server mode of bilateral association service;
Bilateral association is a kind of request response mechanism, and client is initiated after request, and server must correctly respond, and communication could correctly be carried out, and monolateral association is with forms of broadcasting communication, does not need response.
Station level and wall message exchange service and functional mapping mode are:
(1) remote control, remote regulating operation adopt the control service of Abstract Common Service Interface ACSI, are mapped to the write operation of MMS (Multimedia Message Service) MMS;
(2) parameter tuning operation adopts the definite value group service of Abstract Common Service Interface ACSI, is mapped to the write operation of MMS (Multimedia Message Service) MMS.
(3) change the report service of remote signalling, SOE, warning function employing Abstract Common Service Interface ACSI, be mapped to the report operation of MMS (Multimedia Message Service) MMS;
(4) log query adopts the log services of Abstract Common Service Interface ACSI, is mapped to MMS (Multimedia Message Service) MMS journalizing.
<2> carries out modeling to the server of micro-electrical network hierarchy system: microgrid is controlled IA frame serverPC modeling and adopted standard modeling principle; according to communication mode, divide accessing points (Accesspoint); wherein distributed power source control IED, micro-electrical network centralized control IED, environmental monitoring IED, circuit monitoring and protection IED set up respectively MMS, two accessing points of GOOSE, and energy management system arranges MMS accessing points.
<3> carries out modeling to the logical device of micro-electrical network hierarchy system:
Distributed power source in micro-electrical network is normally by sun power, wind energy, it is grid-connected that the renewable energy conversion such as geothermal energy become electric energy to pass through power electronic equipment again, the characteristic of generating electricity by way of merging two or more grid systems according to distributed power source in IEC61850-7-402 is defined energy converter to logical device relevant to distributed power source in micro-grid system can be subdivided into miniature gas turbine, fuel cell, photovoltaic system, wind turbine, diesel-driven generator, a plurality of logical device such as gas turbine, each logical device is because the logic node that the conversion regime difference of the energy comprises and data are also different, it is multiple that converter plant comprises that direct current arrives interchange, frequency conversion, electric pressure conversion etc., energy storage system comprises that battery, water pump superconduction energy storage equipment, the miniature flywheel of flywheel etc. are multiple.Micro-grid system is in order to make full use of the intermittent regenerative resources such as wind-powered electricity generation, solar electrical energy generation, need to be to the distributed power source prediction of generating electricity, and " guidance " microgrid energy management system is formulated energy management strategy, guarantees micro-grid system reliability service.The distributed power source that is as the criterion the really now prediction of exerting oneself, micro-grid system need to be to environmental parameters such as illumination, temperature, wind speed, wind directions, and above-mentioned parameter need to carry out logic modeling to relevant environment monitoring equipment.
Construction logic node LN in logical device LD, at least comprise three logic node LN, i.e. the logic node LPHD of the logical node zero of presentation logic device common information (LLN0), physical unit common information and the applicable logic node of other merits (as PIDS, XCBR etc.).According to functional analysis above, by the Comprehensive Correlation with standard IEC 61850-7-4 and the LN functional description of IEC61850-7-420 part and application scenario, choose suitable LN and build model.Each minimum function Modelon Modeling of needs communication, be a LN.
(1) IED(IED of microgrid energy management main website refers to intelligent electronic device): master function arranges unity logic equipment LD, and logic node arranges respectively man-machine interface IHMI, automatic archiving managing I ARC, power prediction WPFO, alarm management CALH, physical message logic node LPHD, public information logic node LLN0;
Wherein, physical message logic node LPHD and public information logic node LLN0 are the logic node of each logical device indispensability, describe respectively nameplate information and logical device nameplate and the common information of physical equipment;
(2) microgrid Centralized Controller IED: microgrid Centralized Controller arranges unity logic equipment, logic node arranges respectively and site switch operational mode DOPM, grid-connected dotted state DPST, distributed power source economic load dispatching parameter DCCT site fuse XFUS site switch XCBR, on-off controller CSWI site measurement MMXU;
(3) distributed electrical source controller IED:
Distributed power source comprises wind generator system, photovoltaic generating system and energy-storing and power-generating system, and described wind generator system is connected with wind generator system controller; Described photovoltaic generating system is connected with photovoltaic generating system controller; Described energy-storing and power-generating system is connected with accumulator system controller;
1. wind generator system is controlled IED: blower fan model reference IEC61400-25-2 standard, arranges respectively outlet on-off controller CSWI, outlet breaker XSBR, blower fan inverter control WCNV, direct current by function and measure MMDC, exchange and measure that MMXU, air-blower control WTUR, blade are controlled WTOR, WTRM, generator WGEN, real power control WAPC, idle control WRPC and warning message WALM are controlled in transmission;
2. photovoltaic generating system is controlled IED: outlet on-off controller CSWI, outlet breaker XSBR, inverter control ZINV, direct current are set and measure MMDC, exchange and measure MMXU, photovoltaic array DPVE, photovoltaic array and control DPVC, solar tracking and follow the tracks of that DTRC, photovoltaic controller characteristic DRCT, photovoltaic controller state DRCS, photovoltaic controller are controlled DRCC, photovoltaic controller economy is shared DCCT and action sequence FSEQ;
3. IED is controlled in energy storage: gate out switch controller CSWI, outlet breaker XSBR, inverter control ZINV, direct current measurement MMDC, interchange measurement MMXU, battery status ZBAT, battery control ZBTC, energy storage controller characteristic DRCT, energy storage controller state DRCS, energy storage controller are controlled DRCC, energy storage controller economy is shared DCCT, action sequence FSEQ.
4. environmental monitoring IED: photovoltaic environmental parameter MMET and wind environment parameter WMET;
5. circuit monitoring and protection IED: circuit monitoring and protection IED is divided into measurement and control logic equipment LD and protection logical device LD by function; Logic node is set to: measurement and control logic equipment LD arranges on-off controller CSWI, on-load switch XSWI, measurement MMXU, Detecting Power Harmonics MHAI, out-of-balance current measurement MSQI, circuit mutual inductor TCTR, voltage transformer (VT) TVTR and universal input output GGIO;
Protection logical device LD logic node is set to: public information logic node LLN0, physical message logic node LPHD, instant over current protection PIOC, time delay overcurrent protection PTOC and direction ground protection PSDE.
Hierarchical control information provided by the invention is moved towards figure as shown in Figure 6, microgrid energy management main website carries out communication with circuit observing and controlling IED, micro-power grid control IED and environmental monitoring IED respectively, and micro-power grid control IED controls IED with the photovoltaic of lower floor respectively, IED is controlled in energy storage and air-blower control IED carries out communication.
Specifically describe and represent with following table 1:
Table 1 information is moved towards figure
The present invention has carried out function modeling to the station level of microgrid hierarchy system, wall critical system and equipment, emphasis has enriched wind-power electricity generation modeling information, realize the interoperability of microgrid equipment room, reduce uniformity test technical threshold, contribute to the microgrid renewal of the equipment replacement and plug and play.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although the present invention is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not depart from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.
Claims (7)
1. a modeling method that meets micro-electrical network hierarchy system of IEC61850 standard, described micro-electrical network hierarchy system comprises successively the energy management layer that connects, central control level and key-course on the spot, the station level in the corresponding electric system of described energy management layer; Wall in the corresponding electric system of described central control level and on the spot key-course, electric system comprises process layer, described process layer is electrical network primary equipment, comprises circuit detection and control terminal and switch;
Described energy management layer comprises microgrid energy management main website; Described central control level comprises microgrid Centralized Controller; Described key-course on the spot comprises distributed electrical source controller, load governor and circuit measuring and controlling protective device;
It is characterized in that, described method comprises the steps:
<1> carries out information service mapping to micro-electrical network hierarchy system;
<2> carries out modeling to the server of micro-electrical network hierarchy system;
<3> carries out modeling to the logical device of micro-electrical network hierarchy system.
2. the modeling method of micro-electrical network hierarchy system as claimed in claim 1, it is characterized in that, in described step <1>, micro-electrical network hierarchy system physical equipment different from digital transformer substation comprises: physical quantity measurement equipment, primary energy conversion equipment and the conversion equipment that generates electricity by way of merging two or more grid systems; The modeling of described primary energy conversion equipment, the conversion equipment that generates electricity by way of merging two or more grid systems is unified in distributed electrical source controller and completes;
Micro-electrical network hierarchy system is carried out to information service mapping to be comprised:
A, process of establishing layer gather net;
B, wall modeling; With
C, station level modeling.
3. the modeling method of micro-electrical network hierarchy system as claimed in claim 2, is characterized in that, in described A, process layer comprises Intellectualized Switchgear, electronic type voltage, current transformer and merge cells;
Process of establishing layer gathers net and comprises: it is real time data that collection circuit measuring and controlling protective device electric current and voltage sampled value and on off state value transmit data, mode is: process of establishing bus, adopts the rapid message of sampled value SAV and transformer substation case GOOSE private network or common network transmission to realize;
Between distributed electrical source controller and distributed power source, adopt internal bus transmission real-time sampling data and control information, internal bus comprises CAN bus and Modbus bus.
4. the modeling method of micro-electrical network hierarchy system as claimed in claim 2, it is characterized in that, described sampled value mode Based on Distributed power-supply controller of electric or circuit measuring and controlling protective device the obtaining of metric data of substantially sampling, transformer substation case model is that microgrid Centralized Controller is controlled with the conversion equipment that generates electricity by way of merging two or more grid systems and status information mutual;
In described B, bay device comprises microgrid Centralized Controller, distributed electrical source controller, environment detector and circuit measuring and controlling protective device; Information interaction between microgrid Centralized Controller and distributed electrical source controller, environment detector and circuit measuring and controlling protective device comprises measured value, state value and control information; Microgrid Centralized Controller adopts Real-Time Control Strategy, and described measured value, state value and control information adopt GOOSE protocol issuance subscribing manner to transmit.
5. the modeling method of micro-electrical network hierarchy system as claimed in claim 2, it is characterized in that, in described C, between bay device and microgrid energy management main website based on MMS (Multimedia Message Service) MMS communicated by letter daily record, warning, " four is distant " and energy scheduling; MMS (Multimedia Message Service) MMS communications applications between bay device is in the parameter setting of the time GOOSE of transformer station controll block and obtain, and adopts the customer end/server mode of bilateral association service;
Station level and wall message exchange service and functional mapping mode are:
(1) remote control, remote regulating operation adopt the control service of Abstract Common Service Interface ACSI, are mapped to the write operation of MMS (Multimedia Message Service) MMS;
(2) parameter tuning operation adopts the definite value group service of Abstract Common Service Interface ACSI, is mapped to the write operation of MMS (Multimedia Message Service) MMS.
(3) change the report service of remote signalling, SOE, warning function employing Abstract Common Service Interface ACSI, be mapped to the report operation of MMS (Multimedia Message Service) MMS;
(4) log query adopts the log services of Abstract Common Service Interface ACSI, is mapped to MMS (Multimedia Message Service) MMS journalizing.
6. the modeling method of micro-electrical network hierarchy system as claimed in claim 1; it is characterized in that; in described step <2>; server modeling in described microgrid hierarchy system adopts standard modeling principle; according to communication mode, divide accessing points; wherein distributed power source control IED, micro-electrical network centralized control IED, environmental monitoring IED, circuit monitoring and protection IED set up respectively MMS, two accessing points of GOOSE, and microgrid energy management main website arranges MMS (Multimedia Message Service) MMS accessing points.
7. the modeling method of micro-electrical network hierarchy system as claimed in claim 1, is characterized in that, in described step <3>, the micro-electrical network hierarchy system logical device modeling that meets IEC61850 standard comprises:
(1) IED of microgrid energy management main website: master function arranges unity logic equipment LD, logic node arranges respectively man-machine interface IHMI, automatic archiving managing I ARC, power prediction WPFO, alarm management CALH, physical message logic node LPHD, public information logic node LLN0;
Wherein, physical message logic node LPHD and public information logic node LLN0 are the logic node of each logical device indispensability, describe respectively nameplate information and logical device nameplate and the common information of physical equipment;
(2) microgrid Centralized Controller IED: microgrid Centralized Controller arranges unity logic equipment, logic node arranges respectively and site switch operational mode DOPM, grid-connected dotted state DPST, distributed power source economic load dispatching parameter DCCT site fuse XFUS site switch XCBR, on-off controller CSWI site measurement MMXU; 1.
(3) distributed electrical source controller IED:
Distributed power source comprises wind generator system, photovoltaic generating system and energy-storing and power-generating system, and described wind generator system is connected with wind generator system controller; Described photovoltaic generating system is connected with photovoltaic generating system controller; Described energy-storing and power-generating system is connected with accumulator system controller;
1. wind generator system is controlled IED: blower fan model reference IEC61400-25-2 standard, arranges respectively outlet on-off controller CSWI, outlet breaker XSBR, blower fan inverter control WCNV, direct current by function and measure MMDC, exchange and measure that MMXU, air-blower control WTUR, blade are controlled WTOR, WTRM, generator WGEN, real power control WAPC, idle control WRPC and warning message WALM are controlled in transmission;
2. photovoltaic generating system is controlled IED: outlet on-off controller CSWI, outlet breaker XSBR, inverter control ZINV, direct current are set and measure MMDC, exchange and measure MMXU, photovoltaic array DPVE, photovoltaic array and control DPVC, solar tracking and follow the tracks of that DTRC, photovoltaic controller characteristic DRCT, photovoltaic controller state DRCS, photovoltaic controller are controlled DRCC, photovoltaic controller economy is shared DCCT and action sequence FSEQ;
3. IED is controlled in energy storage: gate out switch controller CSWI, outlet breaker XSBR, inverter control ZINV, direct current measurement MMDC, interchange measurement MMXU, battery status ZBAT, battery control ZBTC, energy storage controller characteristic DRCT, energy storage controller state DRCS, energy storage controller are controlled DRCC, energy storage controller economy is shared DCCT, action sequence FSEQ.
4. environmental monitoring IED: photovoltaic environmental parameter MMET and wind environment parameter WMET;
5. circuit monitoring and protection IED: circuit monitoring and protection IED is divided into measurement and control logic equipment LD and protection logical device LD by function; Logic node is set to: measurement and control logic equipment LD arranges on-off controller CSWI, on-load switch XSWI, measurement MMXU, Detecting Power Harmonics MHAI, out-of-balance current measurement MSQI, circuit mutual inductor TCTR, voltage transformer (VT) TVTR and universal input output GGIO;
Protection logical device LD logic node is set to: public information logic node LLN0, physical message logic node LPHD, instant over current protection PIOC, time delay overcurrent protection PTOC and direction ground protection PSDE.
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