CN104779643A - Multi-synchronous-motor grid-connected operation control method and device - Google Patents
Multi-synchronous-motor grid-connected operation control method and device Download PDFInfo
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- CN104779643A CN104779643A CN201510201083.5A CN201510201083A CN104779643A CN 104779643 A CN104779643 A CN 104779643A CN 201510201083 A CN201510201083 A CN 201510201083A CN 104779643 A CN104779643 A CN 104779643A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
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Abstract
The invention provides a multi-synchronous-motor grid-connected operation control method and device. The multi-synchronous-motor grid-connected operation control method comprises the steps that starting requests of synchronous motors are received, and electronic identification of the synchronous motors is extracted from the starting requests; an operation instruction is transmitted to a motor controller according to the electronic identification, and the synchronous motors are connected with the motor controller; input signals and output signals of the motor controller are collected, and current vectors of the motor controller are adjusted according to the input signals and the output signals, so that the synchronous motors meet the grid-connected condition; grid-connected operation of the synchronous motors is controlled. By means of the method, the grid-connected operation of the multiple synchronous motors in the same place can be achieved, the operation control cost of the synchronous motors is reduced, and the foundation is laid for widely using the permanent magnet synchronous motors in industrial production and promoting energy conservation of industrial production.
Description
Technical field
The present invention relates to the application belonging to motor and control technology, to be particularly incorporated into the power networks control method and device about multiple stage synchronous machine.
Background technology
Produce with daily life at modern industrialization, general employing controller controls a permanent magnet synchronous motors and runs.But controller price is generally 2 ~ 4 times of permagnetic synchronous motor price, runs if adopt a controller to control a permanent magnet synchronous motors, cost will be increased greatly.
The cost how reducing controller becomes problem demanding prompt solution.
Summary of the invention
The invention provides a kind of multiple stage synchronous machine to be incorporated into the power networks control method and device, to realize being incorporated into the power networks of same local multiple stage synchronous machine, the operation reducing synchronous machine is controlled cost.
To achieve these goals, the invention provides a kind of multiple stage synchronous machine and to be incorporated into the power networks control method, the described multiple stage synchronous machine control method that is incorporated into the power networks comprises:
Receive the startup application of synchronous machine, and start from described the electronic mark extracting described synchronous machine application;
Send operating instruction according to described electronic mark to an electric machine controller, and connect described synchronous machine and described electric machine controller;
Gather input signal and the output signal of described electric machine controller, adjust the current phasor of described electric machine controller according to described input signal and output signal, make described synchronous machine meet grid-connected conditions;
Control described synchronous machine to be incorporated into the power networks.
In one embodiment, connect described synchronous machine and described electric machine controller, comprising: the contactor between described synchronous machine and described electric machine controller is connected.
In one embodiment, adjust the current phasor of described electric machine controller according to described input signal and output signal, make described synchronous machine meet grid-connected conditions, comprising:
The real time execution parameter of described electric machine controller is calculated according to described input signal and output signal;
Vector calculus is carried out to described real time execution parameter, generates current phasor;
Adjust described current phasor, make the input voltage vector of described electric machine controller and the difference of output voltage vector meet set point.
In one embodiment, described set point is zero.
In one embodiment, control described synchronous machine and be incorporated into the power networks, comprising:
Send connection signal to the contactor between grid side and described synchronous machine, electric network source and described electric machine controller are powered simultaneously;
When after described synchronous machine even running, disconnect the connection of described synchronous machine and described electric machine controller.
In one embodiment, gather input signal and the output signal of described electric machine controller, comprising: the input signal and the output signal that are gathered described electric machine controller by the DSP module of described electric machine controller.
In one embodiment, the described multiple stage synchronous machine control method that is incorporated into the power networks also comprises: the mark of each synchronous machine is converted to electronic mark.
In one embodiment, the described multiple stage synchronous machine control method that is incorporated into the power networks also comprises: by the mode of self study, the parameter of each synchronous machine automatically collected in each electric machine controller.
In one embodiment, the described multiple stage synchronous machine control method that is incorporated into the power networks also comprises:
Receive applying for from net of described synchronous machine;
Control self output voltage of described electric machine controller adjustment according to described from net application, make described output voltage equal with self input voltage;
Connect the contactor between described synchronous machine and described electric machine controller, and after the scheduled time, disconnect the contactor between grid side and described synchronous machine.
To achieve these goals, the invention provides a kind of multiple stage synchronous machine and to be incorporated into the power networks control device, the described multiple stage synchronous machine control device that is incorporated into the power networks comprises:
Mark acquiring unit, for receiving the startup application of synchronous machine, and starts from described the electronic mark extracting described synchronous machine application;
Running control unit, for sending operating instruction according to described electronic mark to described electric machine controller, and connecting described synchronous machine and described electric machine controller;
Grid-connected adjustment unit, for gathering input signal and the output signal of described electric machine controller, adjusting the current phasor of described electric machine controller, making described synchronous machine meet grid-connected conditions according to described input signal and output signal;
Cutting-in control unit, is incorporated into the power networks for controlling described synchronous machine.
In one embodiment, described operation control unit comprises:
First connects module, for being connected by the contactor between described synchronous machine and described electric machine controller.
In one embodiment, described grid-connected adjustment unit comprises:
Parameter calculating module, for calculating the real time execution parameter of described electric machine controller according to described input signal and output signal;
Vector calculus module, for carrying out vector calculus to described real time execution parameter, generates current phasor;
Vector adjusting module, for adjusting described current phasor, makes the input voltage vector of described electric machine controller and the difference of output voltage vector meet set point.
In one embodiment, described set point is zero.
In one embodiment, described cutting-in control unit comprises:
Second connects module, for sending connection signal to the contactor between grid side and described synchronous machine, electric network source and described electric machine controller is powered simultaneously;
Disconnect module, for disconnecting the connection of described synchronous machine and described electric machine controller.
In one embodiment, described grid-connected adjustment unit also comprises:
Signal acquisition module, for gathering input signal and the output signal of described electric machine controller by the DSP module of described electric machine controller.
In one embodiment, the described multiple stage synchronous machine control device that is incorporated into the power networks also comprises:
Mark converting unit, for being converted to electronic mark by the mark of each synchronous machine.
In one embodiment, the described multiple stage synchronous machine control device that is incorporated into the power networks also comprises:
Parameter acquisition unit, for the mode by self study, collects in each electric machine controller automatically by the parameter of each synchronous machine.
In one embodiment, the described multiple stage synchronous machine control device that is incorporated into the power networks also comprises:
Application receiving element, for receiving applying for from net of described synchronous machine;
Voltage-adjusting unit, for controlling self output voltage rate of described electric machine controller adjustment according to described from net application, makes described output voltage equal with self input voltage;
From net control unit, for connecting the contactor between described synchronous machine and described electric machine controller, and after the scheduled time, disconnect the contactor between grid side and described synchronous machine.
By the present invention, achieve being incorporated into the power networks of same local multiple stage synchronous machine, the operation reducing synchronous machine is controlled cost, and for widely using permagnetic synchronous motor in the industrial production, promoting industrial energy-conservation, laying a good foundation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that in the embodiment of the present application, multiple stage synchronous machine is incorporated into the power networks control method flow chart;
Fig. 2 is the method flow diagram of the S103 of Fig. 1;
Fig. 3 controls the method flow diagram that this synchronous machine is incorporated into the power networks in the embodiment of the present application;
Fig. 4 is the control principle drawing that in the embodiment of the present application, multiple stage synchronous machine is incorporated into the power networks;
Fig. 5 is that in the embodiment of the present application, permagnetic synchronous motor is incorporated into the power networks flow chart;
Fig. 6 is the schematic diagram of the grid-connected signals collecting of permagnetic synchronous motor and s operation control in the embodiment of the present application;
Fig. 7 is from network operation method flow diagram in the embodiment of the present application;
Fig. 8 be in the embodiment of the present application permagnetic synchronous motor from network operation flow chart;
Fig. 9 is that in the application one embodiment, multiple stage synchronous machine is incorporated into the power networks the structural representation of control device;
Figure 10 is that in the embodiment of the present application, multiple stage synchronous machine is incorporated into the power networks the structural representation of specific embodiment one of control device;
Figure 11 is that in the embodiment of the present application, multiple stage synchronous machine is incorporated into the power networks the structural representation of specific embodiment two of control device;
Figure 12 is that in the embodiment of the present application, multiple stage synchronous machine is incorporated into the power networks the structural representation of specific embodiment three of control device;
Figure 13 is that in another embodiment of the application, multiple stage synchronous machine is incorporated into the power networks the structural representation of control device.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The higher problem of cost that a synchronous machine causes can only be controlled to solve in prior art an electric machine controller, the embodiment of the present invention provides a kind of multiple stage synchronous machine to be incorporated into the power networks control method, as shown in Figure 1, this multiple stage synchronous machine control method that is incorporated into the power networks comprises:
S101: the startup application receiving synchronous machine, and start from described the electronic mark extracting described synchronous machine application;
S102: send operating instruction to described electric machine controller according to described electronic mark, and connect described synchronous machine and described electric machine controller;
S103: the input signal and the output signal that gather described electric machine controller, adjusts the current phasor of described electric machine controller, makes described synchronous machine meet grid-connected conditions according to described input signal and output signal;
S104: control described synchronous machine and be incorporated into the power networks.
The be incorporated into the power networks executive agent of control method of multiple stage synchronous machine shown in Fig. 1 is operations control center (computer for controlling), known by the flow process shown in Fig. 1, operations control center is according to the startup application of synchronous machine, send operating instruction to an electric machine controller and connect described synchronous machine and described electric machine controller, then input signal and the output signal of electric machine controller is gathered, the current phasor of electric machine controller is adjusted according to input signal and output signal, when synchronous machine meets grid-connected conditions, control synchronization motor is incorporated into the power networks.
In the embodiment of the present invention, operations control center controls all synchronous machines by its of administering or multiple electric motors controller and runs.When receiving the startup application of certain synchronous machine, operations control center needs to know to be which platform synchronous machine proposes to start application, and for this reason, the present invention adds electronic mark on synchronous machine.
Before synchronous machine runs, by the mode of self study, the parameter of each synchronous machine can be collected automatically in each electric machine controller, to support the starting of synchronous machine and to be incorporated into the power networks.
As shown in Figure 2, when S103 specifically implements, comprise the steps:
S201: by input signal and the output signal of electric machine controller described in DSP (the Digital Signal Processing) module acquires of electric machine controller.Input signal and output signal are AC signal, and wherein, input signal is the signal of grid side, outputs signal the signal into motor side.
S202: the real time execution parameter calculating described electric machine controller according to described input signal and output signal.Above-mentioned real time execution can comprise frequency, phase place, voltage etc.
S203: carry out vector calculus to described real time execution parameter, generates current phasor;
S204: adjust described current phasor, makes the input voltage vector of described electric machine controller and the difference of output voltage vector meet set point.This set point can be such as 0, and deserve difference when equaling this set point, synchronous machine M1 meets grid-connected conditions.
By the flow process shown in Fig. 2, can judge whether synchronous machine meets grid-connected conditions accurately, treat the voltage of grid-connected synchronous machine, frequency, phase place control, make it the voltage of same electrical network, frequency, phase place consistent time implement grid-connected.
After synchronous machine meets above-mentioned grid-connected conditions, operations control center just can control this synchronous machine and be incorporated into the power networks, and as shown in Figure 3, controls this synchronous machine and is incorporated into the power networks and comprises the steps:
S301: send connection signal to the contactor between grid side and described synchronous machine, makes electric network source and described electric machine controller power simultaneously.Particularly, after synchronous machine meets above-mentioned grid-connected conditions, electric machine controller, to operations control center feedback signal, informs that its synchronous machine meets grid-connected conditions.Operations control center according to this feedback signal, will send connection signal to the contactor between synchronous machine and grid side, controls this contactor and close.Now, synchronous machine and electric machine controller and grid side are connected simultaneously, and electric network source and described electric machine controller can be powered simultaneously.
S302: when after described synchronous machine even running, disconnect the connection of described synchronous machine and described electric machine controller.
After electric network source and electric machine controller are powered a scheduled time simultaneously (being generally tens seconds), synchronous machine is by even running, and operations control center will disconnect the connection of synchronous machine and electric machine controller, and this synchronous machine will be incorporated into the power networks.
Following composition graphs 4 to Fig. 6, the how synchronous operation of specific description synchronous machine, synchronous machine can be permagnetic synchronous motor, and the present invention is not as limit.
Fig. 4 is the control principle drawing that multiple stage synchronous machine is incorporated into the power networks, and Fig. 5 is that permagnetic synchronous motor is incorporated into the power networks flow chart.As shown in Figures 4 and 5, suppose have 5 synchronous machines to be controlled by two electric machine controllers (controller-1 and controller-2), the mark (numbering) of 5 permanent magnet synchronous motors is respectively M1, M2, M3, M4 and M5, for the ease of identifying, need the mark of above-mentioned 5 permanent magnet synchronous motors to be converted to electronic mark (or being called electronic identification code).
It should be noted that, in Fig. 2, be provided with CAN transceiver in controller-1 and controller-2, operations control center is connected respectively by the CAN transceiver of CAN with controller-1 and controller-2.In addition, every permanent magnet synchronous motors all connects different data acquisition modules (PG1 to PG5 in figure), and integrated CAN transceiver of knowing clearly in each PG, operations control center is connected with the CAN transceiver of PG1 to PG5 respectively by CAN.Due to CAN transceiver of knowing clearly integrated in PG, therefore an address can be set for every platform synchronous machine, i.e. electronic mark.
Starting application to be carried out to a certain permanent magnet synchronous motors of 5 permanent magnet synchronous motors, operator needs at operations control center input electronic recognition code, operations control center can notify that electric machine controller-1 or electric machine controller-2 bring into operation automatically, namely sends operating instruction to electric machine controller-1 or electric machine controller-2.During operations control center notice electric machine controller, need to select idle electric machine controller, such as electric machine controller-1 is just in operation, just notify that electric machine controller-2 brings into operation, if all electric machine controllers are all idle, operating instruction can be sent by a Stochastic choice electric machine controller wherein.
As shown in Figures 5 and 6, suppose that operator will start the permagnetic synchronous motor being numbered M1, after operations control center receives the starting application of M1 motor, suppose that notice electric machine controller-1 is started working, need to connect permagnetic synchronous motor M1 and electric machine controller-1, namely the contactor KM11 between permagnetic synchronous motor M1 and electric machine controller-1 is controlled to connect, at this moment electric machine controller-1 controls permagnetic synchronous motor M1 starting acceleration, accelerates to the synchronous speed that preset frequency (such as 50Hz) is corresponding.
After permagnetic synchronous motor M1 accelerates to synchronous speed corresponding to preset frequency, first need the input signal (grid side U, V, W) and the output signal (motor side) that are gathered electric machine controller-1 by the DSP module of electric machine controller-1; Then according to above-mentioned input signal and output signal, calculate the frequency of electric machine controller-1, the real time execution such as phase place, voltage parameter, and vector calculus is carried out to real time execution parameter, generate current phasor; Finally, by adjusting described current phasor, the input voltage vector of electric machine controller-1 and the difference of output voltage vector are equalled zero.
Meet grid-connected conditions feedback signal will from controller-1 by CAN line to operations control center, operations control center sends connection signal to KM13, and KM13 contactor closes.At this moment KM11 and KM13 connects simultaneously, and namely controller-1 and electric network source are powered simultaneously, after keeping a period of time (about tens seconds), when M1 motor reaches and operates steadily, operations control center sends cut-off signal to KM11, and contactor KM11 disconnects, so far, M1 motor is incorporated into the power networks.
After synchronous machine (part or all of synchronous machine) starting is incorporated into the power networks, administrative center can pass through CAN system, real-time collecting synchronous machine service data, as electric current, voltage, power, power factor, motor internal temperature etc., real-time analysis and storage being carried out to the data detected, reporting to the police or stopping synchronous machine running as carried out during data exception.
The synchronous machine be incorporated into the power networks, can select from network operation at any time, as shown in Figure 7, comprises from network operation method:
S701: receive applying for from net of synchronous machine;
S702: control self output voltage of described electric machine controller adjustment according to described from net application, make described output voltage equal with self input voltage;
S703: connect the contactor between described synchronous machine and described electric machine controller, and after the scheduled time, disconnect the contactor between grid side and described synchronous machine.
Particularly, permagnetic synchronous motor shown in composition graphs 8 from shown in network operation flow process and Fig. 6, when a certain synchronous machine needs from network operation, to by operations control center application, after administrative center identifies, will notify that electric machine controller-1 or electric machine controller-2 work.As wanted synchronous machine M1 from net, electric machine controller-1 will work, automatically it adjusts the voltage and frequency that export, detect its voltage the same with the sized phases of input voltage, at this moment contactor KM11 connects, and KM13 is also in connection situation, KM13 keeps after about tens seconds, under the control at management operating center, automatically disconnect, motor M 1 realizes from network operation.After network operation, speed governing operation can be implemented to M1 motor.
Pass through the present invention, administrative center can pass through CAN system, management Permanent Magnet Synchronous Motor Controller, realize multiple electric motors be incorporated into the power networks with from network operation, real-time collecting motor service data, as electric current, voltage, power, power factor, motor internal temperature etc., real-time analysis and storage being carried out to the data detected, reporting to the police or stopping motor running as carried out during data exception.
Significant change is there is in the operational efficiency of threephase asynchronous machine with load variations, the efficiency of rated operation point is generally about 90%, it is peak, when motor load (during underloading) 20 ~ 30% time, its efficiency just only about 50%, and no matter permagnetic synchronous motor is underloading or heavy duty, its efficiency is all 90%.
Utilize one or several Electric Machine Control management several, Ji Shitai, very arrive hundreds of permanent magnet synchronous motors and be incorporated into the power networks in same place, can realize simultaneously grid-connected or grid-connected by sequence.
Electric machine controller adopts the algorithm of vector control, controls the voltage of grid-connected motor, frequency, phase place, make it the voltage of same electrical network, frequency, phase place consistent time, implement grid-connected.
As seen from the above description, by operations control center management multiple electric motors controller, realize being incorporated into the power networks of same local multiple stage permagnetic synchronous motor, the operation reducing permagnetic synchronous motor is controlled cost, for widely using permagnetic synchronous motor in the industrial production, promote industrial energy-conservation, lay a good foundation.
To be incorporated into the power networks the identical inventive concept of control method based on the multiple stage synchronous machine shown in Fig. 1, the embodiment of the present application additionally provides a kind of multiple stage synchronous machine and to be incorporated into the power networks control device, as below as described in embodiment.Because this multiple stage synchronous machine principle that control device deals with problems and multiple stage synchronous machine control method that is incorporated into the power networks that is incorporated into the power networks is similar, therefore the be incorporated into the power networks enforcement of control device of this multiple stage synchronous machine can be incorporated into the power networks see multiple stage synchronous machine the enforcement of control method, repeats part and repeats no more.
Fig. 9 is that in the embodiment of the present invention, multiple stage synchronous machine is incorporated into the power networks the structural representation of control device, this multiple stage synchronous machine control device that is incorporated into the power networks comprises: mark acquiring unit 901, runs control unit 902, grid-connected adjustment unit 903 and cutting-in control unit 904, wherein
Mark acquiring unit 901 for receiving the startup application of synchronous machine, and starts from described the electronic mark extracting described synchronous machine application;
Run control unit 902 for sending operating instruction according to described electronic mark to an electric machine controller, and connect described synchronous machine and described electric machine controller;
Grid-connected adjustment unit 903, for gathering input signal and the output signal of described electric machine controller, adjusts the current phasor of described electric machine controller, makes described synchronous machine meet grid-connected conditions according to described input signal and output signal;
Cutting-in control unit 904 is incorporated into the power networks for controlling described synchronous machine.
Figure 10 is that in the embodiment of the present application, multiple stage synchronous machine is incorporated into the power networks the structural representation of specific embodiment of control device; As shown in Figure 10, the operation control unit 902 in Fig. 9 comprises: instruction sending module 1001 and first connects module 1002.
Instruction sending module 1001 is for sending operating instruction according to described electronic mark to an electric machine controller, and first connects module 1002 for being connected by the contactor between described synchronous machine and described electric machine controller.
Figure 11 is that in the embodiment of the present application, multiple stage synchronous machine is incorporated into the power networks the structural representation of specific embodiment of control device; As shown in figure 11, the grid-connected adjustment unit 903 in Fig. 9 comprises: signal acquisition module 1101, parameter calculating module 1102, vector calculus module 1103 and vector adjusting module 1104.
Signal acquisition module 1101, for gathering input signal and the output signal of described electric machine controller by the DSP module of described electric machine controller;
Parameter calculating module 1102 is for calculating the real time execution parameter of described electric machine controller according to described input signal and output signal;
Vector calculus module 1103, for carrying out vector calculus to described real time execution parameter, generates current phasor;
Vector adjusting module 1104, for adjusting described current phasor, makes the input voltage vector of described electric machine controller and the difference of output voltage vector meet set point.
Figure 12 is that in the embodiment of the present application, multiple stage synchronous machine is incorporated into the power networks the structural representation of specific embodiment of control device; As shown in figure 12, the cutting-in control unit 904 in Fig. 9 comprises: second connects module 1201 and disconnect module 1202.
Second connects module 1201 for sending connection signal to the contactor between grid side and described synchronous machine, and electric network source and described electric machine controller are powered simultaneously;
Disconnect module 1202 for disconnecting the connection of described synchronous machine and described electric machine controller.
In one embodiment, as shown in figure 13, the multiple stage synchronous machine control device that is incorporated into the power networks also comprises: mark converting unit 1301 and parameter acquisition unit 1302.Mark converting unit 1301 is for being converted to electronic mark by the mark of each synchronous machine, and the parameter of each synchronous machine, for the mode by self study, collects in each electric machine controller by parameter acquisition unit 1302 automatically.
By the present invention, operations control center management multiple electric motors controller, realizes being incorporated into the power networks of same local multiple stage permagnetic synchronous motor, the operation reducing permagnetic synchronous motor is controlled cost, for widely using permagnetic synchronous motor in the industrial production, promoting industrial energy-conservation, laying a good foundation.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Apply specific embodiment in the present invention to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (18)
1. multiple stage synchronous machine is incorporated into the power networks a control method, it is characterized in that, the described multiple stage synchronous machine control method that is incorporated into the power networks comprises:
Receive the startup application of synchronous machine, and start from described the electronic mark extracting described synchronous machine application;
Send operating instruction according to described electronic mark to an electric machine controller, and connect described synchronous machine and described electric machine controller;
Gather input signal and the output signal of described electric machine controller, adjust the current phasor of described electric machine controller according to described input signal and output signal, make described synchronous machine meet grid-connected conditions;
Control described synchronous machine to be incorporated into the power networks.
2. multiple stage synchronous machine according to claim 1 is incorporated into the power networks control method, it is characterized in that, connects described synchronous machine and described electric machine controller, comprising: connected by the contactor between described synchronous machine and described electric machine controller.
3. multiple stage synchronous machine according to claim 1 is incorporated into the power networks control method, it is characterized in that, according to the current phasor of described input signal and the described electric machine controller of output signal adjustment, makes described synchronous machine meet grid-connected conditions, comprising:
The real time execution parameter of described electric machine controller is calculated according to described input signal and output signal;
Vector calculus is carried out to described real time execution parameter, generates current phasor;
Adjust described current phasor, make the input voltage vector of described electric machine controller and the difference of output voltage vector meet set point.
4. multiple stage synchronous machine according to claim 3 is incorporated into the power networks control method, and it is characterized in that, described set point is zero.
5. multiple stage synchronous machine according to claim 1 is incorporated into the power networks control method, it is characterized in that, controls described synchronous machine and be incorporated into the power networks, comprising:
Send connection signal to the contactor between grid side and described synchronous machine, electric network source and described electric machine controller are powered simultaneously;
When after described synchronous machine even running, disconnect the connection of described synchronous machine and described electric machine controller.
6. multiple stage synchronous machine according to claim 1 is incorporated into the power networks control method, it is characterized in that, gather input signal and the output signal of described electric machine controller, comprising: the input signal and the output signal that are gathered described electric machine controller by the DSP module of described electric machine controller.
7. the multiple stage synchronous machine according to any one of claim 1-6 is incorporated into the power networks control method, it is characterized in that, the described multiple stage synchronous machine control method that is incorporated into the power networks also comprises: the mark of each synchronous machine is converted to electronic mark.
8. the multiple stage synchronous machine according to any one of claim 1-6 is incorporated into the power networks control method, it is characterized in that, the described multiple stage synchronous machine control method that is incorporated into the power networks also comprises: by the mode of self study, the parameter of each synchronous machine automatically collected in each electric machine controller.
9. multiple stage synchronous machine according to claim 1 is incorporated into the power networks control method, it is characterized in that, the described multiple stage synchronous machine control method that is incorporated into the power networks also comprises:
Receive applying for from net of described synchronous machine;
Control self output voltage of described electric machine controller adjustment according to described from net application, make described output voltage equal with self input voltage;
Connect the contactor between described synchronous machine and described electric machine controller, and after the scheduled time, disconnect the contactor between grid side and described synchronous machine.
10. multiple stage synchronous machine is incorporated into the power networks a control device, it is characterized in that, the described multiple stage synchronous machine control device that is incorporated into the power networks comprises:
Mark acquiring unit, for receiving the startup application of synchronous machine, and starts from described the electronic mark extracting described synchronous machine application;
Running control unit, for sending operating instruction according to described electronic mark to an electric machine controller, and connecting described synchronous machine and described electric machine controller;
Grid-connected adjustment unit, for gathering input signal and the output signal of described electric machine controller, adjusting the current phasor of described electric machine controller, making described synchronous machine meet grid-connected conditions according to described input signal and output signal;
Cutting-in control unit, is incorporated into the power networks for controlling described synchronous machine.
11. multiple stage synchronous machines according to claim 10 are incorporated into the power networks control device, and it is characterized in that, described operation control unit comprises:
First connects module, for being connected by the contactor between described synchronous machine and described electric machine controller.
12. multiple stage synchronous machines according to claim 10 are incorporated into the power networks control device, and it is characterized in that, described grid-connected adjustment unit comprises:
Parameter calculating module, for calculating the real time execution parameter of described electric machine controller according to described input signal and output signal;
Vector calculus module, for carrying out vector calculus to described real time execution parameter, generates current phasor;
Vector adjusting module, for adjusting described current phasor, makes the input voltage vector of described electric machine controller and the difference of output voltage vector meet set point.
13. multiple stage synchronous machines according to claim 12 are incorporated into the power networks control device, and it is characterized in that, described set point is zero.
14. multiple stage synchronous machines according to claim 10 are incorporated into the power networks control device, and it is characterized in that, described cutting-in control unit comprises:
Second connects module, for sending connection signal to the contactor between grid side and described synchronous machine, electric network source and described electric machine controller is powered simultaneously;
Disconnect module, for disconnecting the connection of described synchronous machine and described electric machine controller.
15. multiple stage synchronous machines according to claim 10 are incorporated into the power networks control device, and it is characterized in that, described grid-connected adjustment unit also comprises:
Signal acquisition module, for gathering input signal and the output signal of described electric machine controller by the DSP module of described electric machine controller.
16. multiple stage synchronous machines according to any one of claim 10-15 are incorporated into the power networks control device, it is characterized in that, the described multiple stage synchronous machine control device that is incorporated into the power networks also comprises:
Mark converting unit, for being converted to electronic mark by the mark of each synchronous machine.
17. multiple stage synchronous machines according to any one of claim 10-15 are incorporated into the power networks control device, it is characterized in that, the described multiple stage synchronous machine control device that is incorporated into the power networks also comprises:
Parameter acquisition unit, for the mode by self study, collects in each electric machine controller automatically by the parameter of each synchronous machine.
18. multiple stage synchronous machines according to claim 10 are incorporated into the power networks control device, it is characterized in that, the described multiple stage synchronous machine control device that is incorporated into the power networks also comprises:
Application receiving element, for receiving applying for from net of described synchronous machine;
Voltage-adjusting unit, for controlling self output voltage rate of described electric machine controller adjustment according to described from net application, makes described output voltage equal with self input voltage;
From net control unit, for connecting the contactor between described synchronous machine and described electric machine controller, and after the scheduled time, disconnect the contactor between grid side and described synchronous machine.
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| CN201510201083.5A CN104779643B (en) | 2015-04-24 | 2015-04-24 | Multiple stage synchronous motor is incorporated into the power networks control method and device |
| PCT/CN2015/098953 WO2016169292A1 (en) | 2015-04-24 | 2015-12-25 | Control method and device for grid-connected operation of plurality of synchronous motors |
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| CN201510201083.5A CN104779643B (en) | 2015-04-24 | 2015-04-24 | Multiple stage synchronous motor is incorporated into the power networks control method and device |
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| WO2016169292A1 (en) * | 2015-04-24 | 2016-10-27 | 深圳先进技术研究院 | Control method and device for grid-connected operation of plurality of synchronous motors |
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| CN104779643B (en) | 2017-01-04 |
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