CN106647712A - DC micrgrid control strategy testing system and method - Google Patents
DC micrgrid control strategy testing system and method Download PDFInfo
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- CN106647712A CN106647712A CN201611261139.7A CN201611261139A CN106647712A CN 106647712 A CN106647712 A CN 106647712A CN 201611261139 A CN201611261139 A CN 201611261139A CN 106647712 A CN106647712 A CN 106647712A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24024—Safety, surveillance
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24026—Latch, block unlatch, unblock
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
Abstract
The invention relates to the technical field of power and electronics, and discloses a micrgrid control strategy testing system and method. The system comprises a first upper computer which is in communication connection with a local controller and is used for generating a local control program and a configuration program in the local controller; the local controller which is used for operating the local control program so as to generate a local control signal of each microgrid power module, and is also used for operating the configuration program and emitting a configuration signal corresponding to each microgrid power module; a control chip which is used for carrying out the configuration of a filter and a current transformer according to the configuration signals, and enabling the filter and current transformer to work in working modes corresponding to the configuration signals, and is also used for controlling the current transformer according to the control signal, thereby controlling the operation of controlled simulation equipment of a microgrid. According to the embodiment of the invention, the system is better in flexibility, universality and stability, and facilitates the improvement of the testing efficiency of a DC microgrid control strategy.
Description
Technical field
The present invention relates to electric and electronic technical field, more particularly to a kind of direct-current grid control strategy test system and side
Method.
Background technology
Direct-current grid is in the form of DC distribution, to be connected all micro batteries by a public dc bus
The individually controllable system come.Development of the research of direct-current grid control strategy to DC micro-electric network technology is significant.
At present, compared with frequently with direct-current grid control strategy test mode mainly include that all-digital real-time simulation and physics dynamic model are surveyed
Examination.
All-digital real-time simulation is to build main topological, all controlled device of microgrid using electric power and simulation of power electronic software
And its control algolithm of correlation, and by simulation management software by main topological, all controlled device model of microgrid and its correlation
In analogue system, the advantage of the method can be that convenient modification is emulated for control algolithm compiling, deployment and real time execution
The control algolithm of controlled device model topology, parameter and its correlation, adjusts the modes such as ginseng, modification control targe quickly to test using online
The function and validity of each related control algolithm in card micro-capacitance sensor.But all-digital real-time simulation technology also has following problem：(1)
Especially the controlled device such as generator and battery uses equivalent mathematical model in direct-current grid, have ignored the electricity of generator
Situations such as generator parameter change in magnetic characteristic and running, battery parameter are varied with temperature, thus it is controlled with reality
Object is different；(2) in real time full digital trigger technique is the emulation of signal level, is data between control algolithm and controlled device
Input and output, interact that involved data conditioning postpones and communication protocol etc. is all with controller signals without actual controlled device
Many problems, it is excessively preferable；(3) Mathematical Modeling of all-digital real-time simulation can power amplifier using power hardware in ring by way of and
Material object in other microgrids is connected, and so as to reduce inaccurate the brought impact of model, but physics is in kind and Mathematical Modeling
Physical interface equipment and interface algorithm can produce time delay when dealing with improperly, be unfavorable for the exploitation of direct-current grid control strategy.
And another kind compared with frequently with mode be physics dynamic model test, wherein, physics moving die test system includes：It is imitative in real time
Physics equivalent simulation equipment of each controlled device etc. in true equipment, equivalent rectifier and inverter, microgrid.Using equivalent whole
Stream device and inverter are topological to build the main electric power of micro-capacitance sensor, can be write out and are applied to using electric power and power electronics development system
The energy management control algolithm of direct-current grid, and by simulation management software by the direct-current grid energy management control algolithm
Compiling, deployment and real time execution are in analogue system.Physics moving die test system uses scaled equivalent simulation equipment
Carry out each controlled device in analog DC micro-capacitance sensor, DSP (the Digital Signal inside each equivalent moving die apparatus
The abbreviation of Processing, digital signal processor) or PLC (abbreviation of Programmable Logic Controller, can
Programmed logic controller) in operation have the control algolithm for being modeled device, while each PLC and DSP also carry communication interface, can be with
The control targe that direct-current grid energy manager is sent is received, and according to the control targe control analog machine fortune for being received
OK.The physical simulating device of actual equal proportion used in physics moving die test system, SPM and real-time simulation set
It is standby, the true environment of direct-current grid control is greatly reduced, while used can the different microgrid energies of fast and easy operation
The real-time simulation device of management control algolithm, and the thing that can flexibly change the equal proportion of the physical topological structure of direct-current grid
Reason analogue means and SPM, can provide more flexible research and development test flat for the research and development of direct-current grid control strategy
Platform.
Inventor has found during the present invention is realized：Physics moving die test system is controlled as a direct-current grid
The exploitation test platform of strategy, there is a problem in that：(1) when whole direct-current grid topological structure changes, each thing
Need according to concrete between reason equivalent simulation equipment and with the communication of the real-time simulation device as direct-current grid energy manager
Topology carries out modification again and debugging, there is the repetition in workload；(2) each physics equivalent simulation equipment is using carrying
DSP or PLC operations are modeled the control algolithm of device, when the direct-current grid that needs are simulated to each physics equivalent simulation equipment
When the control algolithm of middle controlled device is modified, part physical equivalent simulation equipment does not open its control algolithm, so that
Again the control program code and programming of changing equivalent simulation equipment are write in DSP or PLC, the complexity of test is increased.
The content of the invention
The purpose of embodiment of the present invention is to provide a kind of direct-current grid control strategy test system and method so that
The system has more preferably flexibility, versatility and stability, so as to be conducive to improving the survey of direct-current grid control strategy
Examination efficiency.
To solve above-mentioned technical problem, embodiments of the present invention provide a kind of direct-current grid control strategy test system
System, including：Several microgrid power modules of first host computer, N number of Local Controller and each Local Controller communication connection
And the controlled analog machine of micro-capacitance sensor being connected with each microgrid power module；Wherein, the N is positive integer；On described first
Position machine be communicatively coupled to the Local Controller, and the control program on the spot for generating run in the Local Controller with
And configurator；The Local Controller is used to run the control program on the spot to generate corresponding to each microgrid power module
Control signal on the spot, the Local Controller is additionally operable to run the configurator, and sends corresponding to each microgrid power
The configuration signal of module；The microgrid power module includes：Control chip, wave filter and current transformer；The control chip
For being configured to the wave filter and current transformer according to the configuration signal so that the wave filter and current transformer work
Make in mode of operation corresponding with the configuration signal；The control chip is additionally operable to control institute according to the control signal on the spot
Current transformer is stated so as to control the operation of the controlled analog machine of the micro-capacitance sensor.
Embodiments of the present invention additionally provide a kind of direct-current grid control strategy method of testing, control N number of on the spot
Device is communicated to connect respectively with several microgrid power modules, and the controlled analog machine of micro-capacitance sensor and microgrid power module are connected
Connect；Wherein, the N is positive integer；Each Local Controller and energy management controller are communicated to connect；It is raw in the first host computer
Consummately control program and configurator and it is deployed in N number of Local Controller；Each Local Controller runs the configuration journey
Sequence, and the configuration signal corresponding to microgrid power module is sent, each Local Controller also runs the control program on the spot, and
Control signal on the spot is sent to corresponding microgrid power module；The control chip of the microgrid power module is matched somebody with somebody according to described
Confidence number is configured to the wave filter and current transformer in the microgrid power module so that the wave filter and unsteady flow
Device works in mode of operation corresponding with the configuration signal, and the control chip controls institute always according to the control signal on the spot
Current transformer is stated so as to control the operation of the controlled analog machine of corresponding micro-capacitance sensor.
Embodiment of the present invention in terms of existing technologies, by Local Controller, microgrid power module and micro-
The controlled analog machine of electrical network combination to replace existing physics moving die test system in equipment component, by the first host computer
Generate control program and configurator on the spot so that on the spot control program is easily modified, and by configurator to micro- electricity
The mode of operation of wave filter and current transformer in net power model is configured so that microgrid power module is operable with many
The pattern of kind, with more preferably versatility, so as in direct-current grid topologies change, physics equivalent simulation be avoided to set
Standby modification, numerous and diverse operation of debugging, meanwhile, the test system of present embodiment also has preferably flexibility, stability, has
Beneficial to the testing efficiency for improving direct-current grid control strategy.
In addition, the control chip is additionally operable to：The voltage and current signal collected on the wave filter is fed back to described
Local Controller；The voltage and current signal according to collecting is protected to the current transformer；And control described on the spot
Signal processed is converted into the pulse width modulation wave for controlling the current transformer.Gathered by the integrated signal in control chip,
The function of equipment protection and control signal modulation etc. so that the degree of integration of microgrid power module is higher, is more beneficial for drop
The complexity that low test system is built.
In addition, the Local Controller and each microgrid power module mutually concatenate to form the first communication loop, it is described just
Ground controller and each microgrid power module are communicated by first communication loop.
In addition, first communication loop is fiber optic communication ring.Local Controller and each microgrid power module are by a high speed
Fiber optic communication ring is communicated, and can avoid the time delay brought due to communication delay, improves the real-time of test system.
In addition, the control chip is realized using field programmable gate array.
In addition, the first communication library file that is stored with first host computer, first host computer is additionally operable to generate bag
The first signal procedure of the first communication library file is included, and for configuring the first communication library file；Wherein, described first
Communication library file is packaged with the communication type between the Local Controller and each microgrid power module；The micro-capacitance sensor
Power model is used for corresponding to the communication type that corresponding Local Controller is provided with the described first communication library file is encapsulated
Whole communication informations, the Local Controller be used for run first signal procedure and by configure first communication library text
Part obtains the communication information of each microgrid power module.By will use between Local Controller and each microgrid power module
The communication information of data demand is packaged in advance so that user is when actually used, it is only necessary to entered according to actual network topology
Row easy configuration can complete the setting of the communication information exchanged between Local Controller and each microgrid power module, further
Simplify user operation.
In addition, the direct-current grid control strategy test system also includes：Second host computer and energy management are controlled
Device；Second host computer is used for energy management control program of the generating run in the energy management controller；The energy
Amount Management Controller is communicatively coupled to N number of Local Controller, and each micro-capacitance sensor for feeding back according to N number of Local Controller
The operational factor of power model and the energy management control program, generate the energy pipe corresponding to each microgrid power module
Reason control targe value, and the energy management control targe value is sent to corresponding Local Controller；The Local Controller
For being generated corresponding to microgrid power module according to the energy management control targe value and the control program on the spot
Control signal on the spot.
In addition, the energy management controller mutually concatenates to form the second communication loop with N number of Local Controller；It is described
Energy management controller is communicated with N number of Local Controller by second communication loop.
In addition, the second communication library file that is stored with second host computer, second host computer is additionally operable to generate bag
The second signal procedure of the second communication library file is included, and for configuring the second communication library file；Wherein, described
Two communication library files are packaged with the communication type between the energy management controller and each Local Controller；The energy
Management Controller and each Local Controller are additionally operable to run second signal procedure and the second communication storehouse by configuring is entered
The row communication information is exchanged.By the communication letter required by the data that will use between energy management controller and each Local Controller
Breath is packaged in advance so that user is when actually used, it is only necessary to carried out according to actual network topology complete by easy configuration
Into the setting of the communication information exchanged between energy management controller and each Local Controller, further simplify user operation.
Description of the drawings
Fig. 1 is according to first embodiment of the invention direct-current grid control strategy test system exemplary construction schematic diagram；
Fig. 2 is the structural representation according to first embodiment of the invention microgrid power module；
Fig. 3 is the structural representation according to second embodiment of the invention microgrid power module control chip；
Fig. 4 is the flow chart according to third embodiment of the invention direct-current grid control strategy method of testing.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with each reality of the accompanying drawing to the present invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the invention,
In order that reader more fully understands the application and proposes many ins and outs.But, even if without these ins and outs and base
Many variations and modification in following embodiment, it is also possible to realize the application technical scheme required for protection.
Embodiment of the present invention is based on the deficiency of all-digital real-time simulation and direct-current grid physics moving die test system,
Propose suitable for direct-current grid control strategy test system, be easy to it is modular, based on power stage rapid control prototyping
Part physical equivalent of the apparatus alternative combinations equipment.The alternative combinations equipment includes：Local Controller, microgrid power module
And the controlled analog machine of micro-capacitance sensor.Wherein, microgrid power module is the core of the alternative combinations equipment, the microgrid power
The mode of operation flexibly configurable of module, so as to be applied to concrete direct-current grid topological structure requirement.Present embodiment is replaced
For equivalent rectifier and inverter in the alternative physics moving die test system of unit equipment, it is easy to the energy for direct-current grid
Flexible, general, stable test platform is built in the test of the control algolithm of management and controlling tacticses and controlled device.
The first embodiment of the present invention is related to a kind of direct-current grid control strategy test system.Its concrete structure is as schemed
Shown in 1.The direct-current grid control strategy test system includes：First host computer, N number of Local Controller and respectively control on the spot
Device communication connection several microgrid power modules and each microgrid power module connection the controlled analog machine of micro-capacitance sensor,
Second host computer and energy management controller.Wherein, each Local Controller and the micro-capacitance sensor that is connected with each Local Controller
The alternative equivalent rectifier of combination of power model and inverter.Wherein, energy management controller is used for micro- to whole direct current
Power grid energy is managed.Wherein, each Local Controller and energy management controller can be adopted and include CPU (Central
The abbreviation of Processing Unit, central processing unit) computer realize.
As shown in Fig. 2 microgrid power module includes：Control chip, wave filter and current transformer.Control chip is used for root
According to configuration signal, (configurator generated by the first host computer includes the configuration information of each wave filter and current transformer, on the spot
Controller runs the configurator that the first host computer is generated, parse the corresponding wave filter configuration signal of each microgrid power module with
And current transformer configuration signal, and the control corresponding configuration signal of wave filter and current transformer being sent in microgrid power module
Wave filter configuration signal can be given to wave filter by coremaking piece, the control chip, and current transformer configuration signal is given into unsteady flow
Device.) wave filter and current transformer are configured so that wave filter and current transformer work in work corresponding with configuration signal
Pattern.In one example, wave filter is three-phase LCL filter.The three-phase LCL filter can receive the filter of control chip transmission
Ripple device configures signal, and is worked under the pattern of three-phase or certain two-phase according to wave filter configuration signal, wherein, wave filter configuration
Signal is, for example, the enable per phase or disabling signal.Each phase of the three-phase LCL filter can be sensed with voltage x current
Device, such that it is able to collect the voltage x current of each phase, to feed back to control chip.In one example, current transformer can be adopted
With two level unsteady flow bridges, current transformer can receive the current transformer configuration signal from control chip, and match somebody with somebody confidence according to current transformer
Number cause current transformer be operable with the Three models such as DC/AC, DC/DC and AC/DC.Therefore, in present embodiment, can configure
Three-phase LCL filter and current transformer cooperate, each microgrid power module can be caused to work in DC/AC, DC/DC with
And under the Three models such as AC/DC.
Control chip can be also used for according to from Local Controller control signal on the spot (run in Local Controller by
During the control program on the spot that the first host computer is generated, control signal control on the spot can be sent to corresponding microgrid power module
Current transformer, so as to control the operation of the controlled analog machine of micro-capacitance sensor for being connected to the microgrid power module.Control chip can be with
Realized using FPGA (abbreviation of Field Programmable Gate Array, field programmable gate array) so that control
Coremaking piece can provide the material calculation of hundreds of nanoseconds, it is to avoid the time delay of signal transacting, and the FPGA control chip is base
Realize it is possible to guaranteeing that corresponding function quickly and stably runs in hardware identification code.
The control algolithm of each controlled device of present embodiment (i.e. the controlled analog machine of micro-capacitance sensor) runs on Local Controller
In, therefore, the control algolithm of controlled device can be changed flexibly.And microgrid power module may operate in various Working moulds
Formula, with preferably versatility, when the network topology structure of direct-current grid changes, it is only necessary to according to specific topology
Structural requirement is configured to microgrid power module, eliminates loaded down with trivial details modification, debugging efforts.
In actual applications, the first host computer and the second host computer can adopt engineering host computer, wherein, the first host computer
With the electric power with image conversion interface and power electronic system simulation software are installed in the second host computer.First host computer and just
Ground controller communication connection, and the control program on the spot for generating run in Local Controller is (each i.e. in direct-current grid
The control program of direct-current grid controlled device (such as wind-powered electricity generation simulator, energy storage simulator, photovoltaic simulator etc.)) and configuration
Program, the second host computer is communicated to connect with energy management controller, and the energy for generating run in energy management controller
Amount supervisor control program (i.e. whole direct-current grid energy management algorithm).Wherein, on the spot control program, energy management control journey
Sequence and configurator can adopt the electric power of image conversion to write with power electronic system simulation software.
In one example, be also stored with the first communication library file in the first host computer, and the first host computer is additionally operable to generate
It is additionally operable to configure the first communication library file including the first signal procedure of the first communication library file, and the first host computer.The
Be stored with the second communication library file in two host computers, and the second host computer is additionally operable to generate and includes the of the second communication library file
Two signal procedures, and the second host computer be additionally operable to configure this second communication library file.Wherein, encapsulate in the first communication library file
There is the communication type between each Local Controller and microgrid power module, the second communication library file is packaged with energy management
Communication type between controller and each Local Controller.Communication letter between Local Controller and microgrid power module
Breath includes polytype, and present embodiment is packaged in those communication types in the first communication library file.Second communication
The data that library file can also need to be used according to the control program on the spot of energy management control algolithm and each Local Controller are carried out
The configuration of the communication information.
In actual applications, may not be needed between Local Controller and corresponding microgrid power module logical using first
The whole communication types encapsulated in news library file, therefore user can be according to actual topological structure, in the first host computer
In the first communication library file is configured, arrange actually needs between each Local Controller and its corresponding microgrid power module
The communication information to be used.It is likewise possible to respectively control according to the energy management control algolithm of energy management controller and on the spot
The control strategy on the spot of device needs the data of interaction to configure the communication information in the second communication library file.
First host computer can be by the control strategy of each Local Controller related in the direct-current grid put up (i.e.
Ground control program), being compiled as can be real for configurator and the first signal procedure (including the first configured communication library file)
The machine code (such as C code) of Shi Yunhang, in downloading and being deployed to each Local Controller automatically, in one example, first
Host computer and Local Controller are one-to-one, consequently facilitating the deployment of control program etc. on the spot.Second host computer can be by
The energy management control program and the second signal procedure put up be compiled as can real time execution machine code (such as C generations
Code), in downloading and being deployed to each Local Controller automatically.Wherein, the first host computer can also control each microgrid power module,
And can complete to be directed to the trial of each controlled analog machine, the automatically function such as test, data monitoring and data analysis.
In present embodiment, energy management controller is used to run energy management control program, and according to respectively controlling on the spot
The operational factor and energy management control program of each microgrid power module of device feedback, generates corresponding to each microgrid power
Module energy manages control targe value, and energy management control targe value is sent to corresponding Local Controller.Control on the spot
Device is used for operation control program on the spot, and according to the on the spot control of the control program generation corresponding to microgrid power module on the spot
Signal, Local Controller is additionally operable to running configuration program, and sends the configuration signal corresponding to microgrid power module.Wherein,
Configuration signal includes wave filter configuration signal and current transformer configuration signal.Local Controller is additionally operable to according to energy management control
Desired value and on the spot control program to corresponding microgrid power module sends control signal on the spot.I.e. Local Controller is used for
The control on the spot of concrete controlled device in direct-current grid.When the Local Controller is connected with multiple microgrid power modules,
It can simultaneously run the control algolithm on the spot of multiple controlled devices.And energy management controller is then used to run energy management control
Algorithm, by microgrid energy administration order (such as energy management control targe value) each Local Controller is handed down to.In an example
In son, energy management controller and each Local Controller are additionally operable to run the second signal procedure and the second communication by configuring
Storehouse carries out communication information exchange.
In one example, each Local Controller and each microgrid power module mutually concatenate to form the first communication
Ring, Local Controller and each microgrid power module are communicated by the first communication loop.Energy management controller with respectively
Ground controller mutually concatenates to form the second communication loop, and energy management controller is entered with N number of Local Controller by the second communication loop
Row communication.In one example, first communication loop and the second communication loop adopt fiber optic communication ring.Local Controller is by height
Fast fiber optic communication ring (the first communication loop) controls the corresponding microgrid power module of multiple direct-current grid controlled devices.Energy pipe
Reason controller is communicated by high speed optical fiber communication ring (the second communication loop) with each Local Controller.In order to meet DC micro-electric
The real-time of net control strategy test system communication, the number of the microgrid power module in each first communication loop should be less than being equal to
4, the number of the Local Controller in each second communication loop should be less than being equal to 6.It should be appreciated that present embodiment is for the first communication
The number of the microgrid power module in ring is not particularly limited, for the number of the Local Controller in the second communication loop is not made
Concrete restriction.
With reference to shown in Fig. 1, the direct-current grid control test system example of present embodiment is described as follows：
The direct-current grid control strategy test system includes：3 Local Controllers (1～3), 1 energy management control
Device, 7 direct-current grid power models (1～2,3～5,6～7) and 5 direct-current grid controlled device (i.e. wind-powered electricity generation simulations
Device 1～2 and energy storage simulator 1 and photovoltaic simulator 1～2), 3 the first host computers (1～3) and 1 it is second upper
Machine.It should be noted that present embodiment is for the first host computer, Local Controller, direct-current grid power model and straight
The quantity of stream micro-capacitance sensor controlled device is not particularly limited.
Wherein, the first host computer 1 is connected to Local Controller 1, and the first host computer 2 is connected to Local Controller 2, on first
Position machine 3 is connected to Local Controller 3.Wherein, the first host computer 1 is used on the spot control of the generating run in Local Controller 1
Program, configurator and the first signal procedure, the rest may be inferred, and the first host computer 3 is used for generating run in Local Controller 3
Control program on the spot, configurator with the first signal procedure.Wherein, the number of the control program of the operation in each Local Controller
Mesh is identical with the number of the microgrid power module for being connected to the Local Controller.Such as, Local Controller 1 is connected with 2 micro- electricity
Net power model, so the control program on the spot run in Local Controller 1 has 2.Wherein, on the spot control program is corresponding
The control algolithm of microgrid power module.
Wherein, microgrid power module 1 and microgrid power module 2 are connected to civil power (wherein, the effect of civil power and quilt
The direct-current grid controlled device effect of embodiment is identical), Local Controller 1 and microgrid power module 1 and micro-capacitance sensor
Power model 2 forms the first communication loop 1.Microgrid power module 3 is connected to wind-powered electricity generation simulator 1, and microgrid power module 4 connects
In wind-powered electricity generation simulator 2, microgrid power module 5 is connected to energy storage simulator 1, and Local Controller 2 and microgrid power module 3～
5 form the first communication loop 2.Microgrid power module 6 is connected to photovoltaic simulator 1, and microgrid power module 7 is connected to photovoltaic mould
Intend device 2, Local Controller 3 forms the first communication loop 3 with microgrid power module 6～7.
(i.e. the first communication loop 1～3) each microgrid power module is all located in high speed optical fiber communication ring shown in Fig. 1
The Local Controller control of ring, operation in each Local Controller has the control algolithm of each microgrid power module, such that it is able to complete
Parallel, the independent control of each controlled device into high speed optical fiber communication ring.Wherein, each Local Controller and energy management control
Device processed is each equipped with optical fiber board to realize high speed optical fiber communication.Wherein, each first host computer of each Local Controller real time execution
Be compiled as can real time execution machine code each direct-current grid in controlled device control algolithm and including being pre-configured with
First communication program of the first good communication library file, the first communication program is received by each microgrid power mould by fibre optic plate clamping
The optical fiber information of respective voltage, the electric current that block feeds back to etc., and complete information analysis, by parsing after each micro-capacitance sensor module
The feedback information of voltage, electric current etc. inputs to the control algolithm of the controlled device of corresponding direct-current grid.First communication program
The control corresponding to each direct-current grid controlled device sent by the control algolithm of each direct-current grid controlled device of packing is ordered
Order, by optical fiber board, to each microgrid power module corresponding optical fiber control command is sent.It should be noted that in order to
Simplify user operation, in present embodiment, first communication library file in be packaged with Local Controller as much as possible with
The communication information between each microgrid power module, and each microgrid power module can feed back as many as possible to Local Controller
The communication information (for example include in the communication information：The voltage and current signal that collects from wave filter, the rotating speed of generator,
Status signal of battery etc.), and user then can communicate storehouse according to the communication information that each Local Controller is actually needed to first
File is configured, so that the first communication program only provides the communication information that each Local Controller is actually needed, so as to can
With the operation for further simplifying user.
Energy management controller undertakes the energy management task of whole direct-current grid.Wherein, energy management controller and 3
Individual Local Controller series connection, constitutes the high speed fibre communication link (i.e. the second communication loop) of closure, and each Local Controller can connect
By the control targe value issued from energy management controller, and according to control targe value, in controlling itself place high speed fibre
Each microgrid power module, complete to verify the test of whole direct-current grid isolated network grid-connected energy management strategy.Shown in Fig. 1
Energy management controller real time execution by the second host computer be compiled as can real time execution machine code direct-current grid energy
Buret manages control algolithm and the second pre-configured communication program.Wherein, it is furnished with optical fiber board in energy management controller, the
Two signal procedures receive the operational factor (output work of each controlled device fed back to by each Local Controller by the fibre optic plate clamping
Rate, voltage, electric current) etc. optical fiber information, and complete the optical fiber information analysis, power parameter after parsing is inputed into whole direct current
Microgrid energy manages control algolithm.The correspondence that the packing of second signal procedure is sent by direct-current grid energy management control algolithm
The control targe value of each controlled device in direct-current grid, by optical fiber board, to each Local Controller corresponding light is sent
Fine control command.
Direct-current grid control strategy test system shown in Fig. 1, by neatly being realized using microgrid power module
The electric main topology of whole direct-current grid is built.Wherein microgrid power module 1 and 2 is operated under AC/DC patterns, will
The three-phase alternating current electric rectification of civil power is direct current, is the DC bus powered of direct-current grid；The work of microgrid power module 3 and 4
Make under AC/DC patterns, the three-phase alternating current electric rectification that wind-powered electricity generation simulator is exported is direct current, is incorporated on dc bus；It is micro-
Grid power module 5～7 is operated under DC/DC patterns, and the direct current that energy storage simulator 1 and photovoltaic simulator 1～2 are exported is led to
Cross buck to be incorporated on dc bus.
Therefore, present embodiment can be by multiple engineering host computers (i.e. the first host computer and the second host computer), multiple
Local Controller, energy management controller, microgrid power module and controlled analog machine are flexibly built based on power stage
The direct-current grid control strategy test system of rapid prototyping control.
With reference to shown in Fig. 1, when the topological structure of direct-current grid changes, present embodiment is only needed to increase, reduced
Local Controller, microgrid power module and the controlled analog machine of micro-capacitance sensor, or microgrid power module is configured.
The mode of operation that the configurator in the first host computer arranges each microgrid power module by the configurator is changed,
In so as to avoid existing physics moving die test system, when increased new physics equivalent simulation equipment, need to newly increasing
Physics equivalent simulation equipment re-start the situation of debugging.
To sum up, using the direct-current grid control strategy test system of present embodiment, utilize with stronger versatility
Microgrid power module builds network topology, relatively complicated repaiies such that it is able to avoid being brought due to the change of network topology
Change, debugging efforts, improve test system flexibility, the security built, and then be conducive to improving direct-current grid control strategy
The efficiency of exploitation.Therefore, user is when using this test system, it is only necessary to finish writing communication library file in advance in host computer, and
Only need according to the communication information and Local Controller between energy controller and Local Controller and microgrid power module it
Between communication newly configure to communicating library file, and the mode of operation of microgrid power module is configured in host computer
The effect of control algolithm on the spot and energy management control algolithm in being completed to direct-current grid using this test system
Checking.
Second embodiment of the present invention is related to a kind of direct-current grid control strategy test system.Second embodiment exists
Improvement is made on the basis of first embodiment, in this second embodiment, in further defining microgrid power module
Control chip realize function, so as to be conducive to further simplifying the implementation of microgrid power module.
In present embodiment, control chip is additionally operable to realize following functions, including but not limited to：One, by wave filter
The voltage and current signal for collecting feeds back to Local Controller, wherein, control chip also sends out the voltage and current signal for collecting
Deliver to corresponding Local Controller；Two, current transformer is protected according to the voltage and current signal for collecting；Three, put up with
Ground control signal is converted into the pulse width modulation wave for controlling current transformer.
Specifically, the corresponding program of the function to be realized can be in advance disposed in control chip.As shown in figure 3, control
Coremaking piece can include：Signal processing module, device communication module, equipment protection module and modulation module etc..Wherein, signal
Processing module is used to be filtered the voltage and current signal gathered from three-phase LCL filter, and filtered voltage is electric
Stream signal is sent to device communication module.It should be noted that three-phase LCL filter can be carried for collection voltages electric current letter
Number voltage-current sensor.Device communication module is used for from the signal of communication of microgrid power module-external (such as light
Optical fiber signaling) electric signal is converted into, and the electric signal inside control chip is converted into signal of communication (such as fiber-optic signal).If
Standby communication module is used to receive the filtered voltage and current signal from signal processing module, and converts thereof into signal of communication
Send to accordingly Local Controller.Device communication module is additionally operable to for the wave filter for receiving to configure signal and current transformer is matched somebody with somebody
Confidence number is sent to three-phase LCL filter and current transformer.Equipment protection module is used for the current value that will be collected from wave filter
It is compared with default setting valve, when meeting pre-conditioned (such as the current value for collecting is less than or equal to default setting valve)
Then control targe value is sent to modulation module, modulation module transmission block signal, locking PWM are then given when being unsatisfactory for pre-conditioned
(abbreviation of Pulse Width Modulation, pulse width modulation) ripple.Modulation module is used for according to from device communication module
The control signal on the spot for receiving and the guarded command received from equipment protection module generate corresponding pulse width modulation
Ripple.When modulation module receives guarded command, modulation module generates pulse width modulation wave to be used to control the power in current transformer
Pipe is all off, and when modulation module does not receive guarded command, the pulse width modulation wave of modulation module output is used to control
Power tube in current transformer works according to control targe value.
Using present embodiment so that microgrid power module can easily integrated equipment protection, equipment communication, signal
The various functions such as process and signal modulation, are conducive to improving the versatility of microgrid power module.Therefore, because micro-capacitance sensor work(
Advance programming in control chip in rate module has been got well for realizing that equipment communication, signal transacting, equipment protection and signal are adjusted
The program of the functions such as system, and control chip can be applicable to the occasion of various new forms of energy access systems, without the need for repeating compiling programming
Control chip, so user only needs to consider that control algolithm program is write, so that it may complete to each is controlled in direct-current grid
The detection of the effect of the control algolithm of equipment.
It is noted that each module involved in present embodiment is logic module, in actual applications, one
Individual logical block can be a part for a physical location, or a physical location, can be with multiple physics lists
The combination of unit is realized.Additionally, the innovative part in order to project the present invention, will not be with solution institute of the present invention in present embodiment
The unit that the technical problem relation of proposition is less close is introduced, but this is not intended that in present embodiment there are no other lists
Unit.
Third embodiment of the invention is related to a kind of direct-current grid control strategy method of testing.Its flow process as shown in figure 4,
The direct-current grid control strategy method of testing includes：
Step 401：N number of Local Controller is communicated to connect respectively with several microgrid power modules, by micro-capacitance sensor quilt
Control analog machine is connected with microgrid power module.Wherein, N is positive integer.In actual applications, in order to meet Local Controller
The real-time communicated between each microgrid power module, the number for grid power module accessed in a Local Controller
Should be less than being equal to 4.However, present embodiment has for the number of the microgrid power module that each Local Controller is controlled does not do
Body is limited.
Wherein, Local Controller and each microgrid power module can be concatenated mutually, form closed-loop communication ring, for example, formed
High speed optical fiber communication ring.
Step 402：Each Local Controller and energy management controller are communicated to connect.
Wherein, each Local Controller and energy management controller can concatenate to form closed-loop communication ring, such as high speed fibre
Communication loop.In actual applications, for the real-time for ensureing to be communicated between energy management controller and each Local Controller, energy
The number of the Local Controller that Management Controller connects simultaneously should be less than being equal to 6.It should be appreciated that present embodiment is for connection
It is not limited in the specific number of the Local Controller of energy management controller.
Step 403：Control program on the spot and configurator are generated in the first host computer and is deployed to respectively control on the spot
In device.
Step 404：Each Local Controller running configuration program, and send corresponding to microgrid power module with confidence
Number, each Local Controller also runs control program on the spot, and sends control signal on the spot to corresponding microgrid power module.
Step 405：The control chip of microgrid power module is according to configuration signal to the filtering in microgrid power module
Device and current transformer are configured so that wave filter and current transformer work in mode of operation corresponding with configuration signal, control
Chip controls current transformer and then controls the operation of the controlled analog machine of corresponding micro-capacitance sensor always according to control signal on the spot.
Using present embodiment, network topology is built using the microgrid power module with stronger versatility, so as to can
To avoid the relatively complicated modification, the debugging efforts that bring due to the change of network topology, the spirit that test system is built is improved
Activity, stability, and then be conducive to improving the efficiency of direct-current grid control strategy exploitation.
Above the step of various methods divide, be intended merely to description it is clear, can merge into when realizing a step or
Some steps are split, multiple steps are decomposed into, as long as comprising identical logical relation, all in the protection domain of this patent
It is interior；To either adding inessential modification in algorithm in flow process or introducing inessential design, but its algorithm is not changed
With the core design of flow process all in the protection domain of the patent.
It is seen that, present embodiment is the embodiment of the method corresponding with first embodiment, and present embodiment can be with
First embodiment is worked in coordination enforcement.The relevant technical details mentioned in first embodiment still have in the present embodiment
Effect, in order to reduce repetition, repeats no more here.Correspondingly, the relevant technical details mentioned in present embodiment are also applicable in
In first embodiment.
It will be appreciated by those skilled in the art that realizing that all or part of step in above-described embodiment method can be by
Program is completed to instruct the hardware of correlation, and the program storage is in a storage medium, including some instructions are used so that one
Individual equipment (can be single-chip microcomputer, chip etc.) or processor (processor) perform the application each embodiment methods described
All or part of step.And aforesaid storage medium includes：USB flash disk, portable hard drive, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific embodiment of the present invention,
And in actual applications, can in the form and details to it, various changes can be made, without departing from the spirit and scope of the present invention.
Claims (10)
1. a kind of direct-current grid control strategy test system, it is characterised in that include：First host computer, N number of control on the spot
Device and several microgrid power modules and micro- with what each microgrid power module was connected of each Local Controller communication connection
The controlled analog machine of electrical network；Wherein, the N is positive integer；
First host computer is communicatively coupled to the Local Controller, and for generating run in the Local Controller
Control program and configurator on the spot；
The Local Controller is used to run the control program on the spot to generate corresponding to each microgrid power module on the spot
Control signal, the Local Controller is additionally operable to run the configurator, and sends corresponding to each microgrid power module
Configuration signal；
The microgrid power module includes：Control chip, wave filter and current transformer；
The control chip is used to configure the wave filter and current transformer according to the configuration signal so that the filter
Ripple device and current transformer work in mode of operation corresponding with the configuration signal；
The control chip is additionally operable to according to the control of the control signal on the spot current transformer so as to control the micro-capacitance sensor quilt
The operation of control analog machine.
2. direct-current grid control strategy test system according to claim 1, it is characterised in that
The control chip is additionally operable to：
The voltage and current signal collected on the wave filter is fed back into the Local Controller；
The voltage and current signal according to collecting is protected to the current transformer；And
The control signal on the spot is converted into the pulse width modulation wave for controlling the current transformer.
3. direct-current grid control strategy test system according to claim 1, it is characterised in that
The Local Controller and each microgrid power module mutually concatenate to form the first communication loop, the Local Controller with
And each microgrid power module is communicated by first communication loop.
4. direct-current grid control strategy test system according to claim 3, it is characterised in that first communication loop
For fiber optic communication ring.
5. direct-current grid control strategy test system according to claim 1, it is characterised in that the control chip is adopted
Realized with field programmable gate array.
6. direct-current grid control strategy test system according to claim 1, it is characterised in that
Be stored with the first communication library file in first host computer, and first host computer is additionally operable to generate includes described first
First signal procedure of communication library file, and for configuring the first communication library file；Wherein, the first communication library file
The communication type being packaged between the Local Controller and each microgrid power module；
The microgrid power module is used to provide logical with the described first communication library file encapsulation to corresponding Local Controller
The corresponding whole communication informations of letter information type, the Local Controller is used to run first signal procedure and by configuring
The first communication library file obtain the communication information of each microgrid power module.
7. direct-current grid control strategy test system according to claim 1, it is characterised in that
The direct-current grid control strategy test system also includes：Second host computer and energy management controller；
Second host computer is used for energy management control program of the generating run in the energy management controller；
The energy management controller is communicatively coupled to N number of Local Controller, and for being fed back according to N number of Local Controller
Each microgrid power module operational factor and the energy management control program, generate corresponding to each microgrid power mould
The energy management control targe value of block, and the energy management control targe value is sent to corresponding Local Controller；
The Local Controller is used to generate correspondence according to the energy management control targe value and the control program on the spot
In the control signal on the spot of microgrid power module.
8. direct-current grid control strategy test system according to claim 7, it is characterised in that
The energy management controller mutually concatenates to form the second communication loop with N number of Local Controller；
The energy management controller is communicated with N number of Local Controller by second communication loop.
9. direct-current grid control strategy test system according to claim 7, it is characterised in that
Be stored with the second communication library file in second host computer, and second host computer is additionally operable to generation and includes described
Second signal procedure of two communication library files, and for configuring the second communication library file；Wherein, the second communication library text
Part is packaged with the communication type between the energy management controller and each Local Controller；
The energy management controller and each Local Controller are additionally operable to run second signal procedure and by configuring
Second communication storehouse carries out communication information exchange.
10. a kind of direct-current grid control strategy method of testing, it is characterised in that include：
By N number of Local Controller respectively with the communication connection of several microgrid power modules, by the controlled analog machine of micro-capacitance sensor with
Microgrid power module connects；Wherein, the N is positive integer；
Each Local Controller and energy management controller are communicated to connect；
Control program on the spot and configurator are generated in the first host computer and is deployed in N number of Local Controller；
Each Local Controller runs the configurator, and sends the configuration signal corresponding to microgrid power module, respectively on the spot
Controller also runs the control program on the spot, and sends control signal on the spot to corresponding microgrid power module；
The control chip of the microgrid power module is according to the configuration signal to the filtering in the microgrid power module
Device and current transformer are configured so that the wave filter and current transformer work in Working mould corresponding with the configuration signal
Formula, the control chip controls the current transformer so as to control the controlled mould of corresponding micro-capacitance sensor always according to the control signal on the spot
Propose standby operation.
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