CN109861400A - Radio energy transmission system modularization inversion source system - Google Patents
Radio energy transmission system modularization inversion source system Download PDFInfo
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- CN109861400A CN109861400A CN201910035679.0A CN201910035679A CN109861400A CN 109861400 A CN109861400 A CN 109861400A CN 201910035679 A CN201910035679 A CN 201910035679A CN 109861400 A CN109861400 A CN 109861400A
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Abstract
The present invention relates to a kind of radio energy transmission system modularization inversion source systems, including the first module and at least one second module, first module includes the first controller, first power inverter and the first full-bridge inverter, and first controller sends driving signal to first power inverter and first full-bridge inverter respectively, second module includes second controller, second power inverter and the second full-bridge inverter, and the second controller sends driving signal to second power inverter and second full-bridge inverter respectively, the first controller acquisition output total current and in real time calculating current benchmark, first controller sends the clock signal and current reference of full-bridge inverting to the second controller.This invention ensures that the reliability of system control, and saved control resource.
Description
Technical field
The present invention relates to technical field of wind power generation, refer in particular to a kind of radio energy transmission system modularization inversion source system
System.
Background technique
It is more next as the advantage of the power resources of mobile device using electric energy with the outburst of environmental pollution and oil crisis
It is more prominent, however, there are a large amount of problems for the mode of the power supply of conventionally employed contact or carrying battery.As contact power supply by
There are contact loss for the reception head of the limitation of interface, power supply rail and mobile device, need frequent maintenance.And it carries battery and then can
By battery volume, the restriction of emphasis, cost, the mileage travelled of mobile device is influenced.It needs to build on ground simultaneously enough
Basic electrically-charging equipment, therefore power supply is inconvenient, cruising ability is poor, maintenance cost and security problems constrain mobile device and wirelessly supply
The development of electricity.And it uses wireless energy transmission technology to carry out wireless power and can be well solved these problems.
Wireless power can guarantee that mobile device implements power supply in moving process or carries battery charging for it, in this way may be used
Effectively to promote the course continuation mileage of mobile device, the battery of its carrying can also be reduced, while also overcoming contact power supply and connecing
Contact there are the drawbacks of.In addition, construction of the ground without charging station, electrical changing station.In the wireless power of mobile device, wirelessly
The structure of power supply system plays vital influence to system transmission performance, includes to efficiency of transmission, transimission power, biography
The various aspects such as defeated distance, sidesway ability, electromagnetic radiation intensity.It can to the structure design of wireless power supply system transmitting terminal and receiving end
To improve its performance well.Continuous promotion with application demand to wireless power supply system power, while to meet technology production
Industry, integrated, modular demand, need to study a kind of modular technology in wireless power supply system inversion source, so that multiple
Lower-powered inverter module can cooperate, and form more powerful inversion system as wireless power supply system and provide high frequency friendship
Galvanic electricity.Its difficult point is that the working frequency in wireless power supply system inversion source is higher, and common power frequency modular technology is difficult at this
Under the conditions of apply.
Summary of the invention
For this purpose, technical problem to be solved by the present invention lies in the works for overcoming wireless power supply system inversion source in the prior art
Working frequency is higher, and common power frequency modular technology is caused to be difficult to the problem of applying, so that common power frequency can be made by providing one kind
Applicable radio energy transmission system modularization inversion source system modular technology is under the conditions of working frequency again is higher
System.
In order to solve the above technical problems, a kind of radio energy transmission system modularization inversion source system of the invention, including
First module and at least one second module, first module include the first controller, the first power inverter and first
Full-bridge inverter, and first controller sends drive to first power inverter and first full-bridge inverter respectively
Dynamic signal, second module include second controller, the second power inverter and the second full-bridge inverter, and described second
Controller sends driving signal, first controller to second power inverter and second full-bridge inverter respectively
Acquisition output total current and in real time calculating current benchmark, first controller send full-bridge inverting to the second controller
Clock signal and current reference.
In one embodiment of the invention, first module and second module export high-frequency alternating current respectively,
And it is superimposed to form the output total current in output end parallel connection.
In one embodiment of the invention, output end collection voltages electricity of first controller from first module
Flow signal.
In one embodiment of the invention, first controller by the sampled value to the voltage and current signal into
Row operation obtains the virtual value of AC signal.
In one embodiment of the invention, output end collection voltages electricity of the second controller from second module
Flow signal.
In one embodiment of the invention, the second controller by the sampled value to the voltage and current signal into
Row operation obtains the virtual value of AC signal.
In one embodiment of the invention, the output total current makees ratio with rated current after acquiring virtual value
Compared with, it exports, calculating current a reference value, is referred to as branch current after treatment, branch output electric current is effective by acquisition
It after value, makes comparisons with the current reference value, using being exported after processing.
In one embodiment of the invention, the branch output electric current refers to the output electric current of the second module.
In one embodiment of the invention, the branch output electric current is after acquiring virtual value, with the electric current base
Quasi- value is made comparisons, and is exported after treatment to first power inverter or the second power inverter, and adjusting described the is passed through
The duty cycle adjustment inverter output current of one power inverter or the second power inverter.
The above technical solution of the present invention has the following advantages over the prior art:
Radio energy transmission system modularization inversion source of the present invention system, provides inversion source module for wireless power supply system
Change solution, the mode tracked using synchronised clock and virtual value enables the sharing control of intermodule in wireless power
It is realized under the high-frequency work state of inversion system；In addition, being protected using the topological structure of master-slave mode and the control method of centralization
The reliability of system control has been demonstrate,proved, and has saved control resource.
Detailed description of the invention
In order to make the content of the present invention more clearly understood, it below according to specific embodiments of the present invention and combines
Attached drawing, the present invention is described in further detail, wherein
Fig. 1 is the schematic diagram of radio energy transmission system modularization inversion source of the present invention system.
Figure of description description of symbols: the first module of 10-, the first controller of 11-, the first power inverter of 12-, 13-
One full-bridge inverter, the second module of 20-, 21- second controller, the second power inverter of 22-, the second full-bridge inverter of 23-.
Specific embodiment
As shown in Figure 1, the present embodiment provides a kind of radio energy transmission system modularization inversion source system, including the first mould
Block 10 and at least one second module 20, first module 10 include the first controller 11, the first power inverter 12 and
First full-bridge inverter 13, and first controller 11 is to first power inverter 12 and first full-bridge inverter
13 send driving signal respectively, and second module 20 is complete including second controller 21, the second power inverter 22 and second
Bridge inverter 23, and the second controller 21 is distinguished to second power inverter 22 and second full-bridge inverter 23
Send driving signal, the acquisition of the first controller 11 output total current and in real time calculating current benchmark, first controller
11 send the clock signal and current reference of full-bridge inverting to the second controller 21.
Radio energy transmission system modularization inversion source system described in the present embodiment, including the first module 10 and at least one
Second module 20, first module 10 include the first controller 11, the first power inverter 12 and the first full-bridge inverter
13, and first controller 11 sends driving to first power inverter 12 and first full-bridge inverter 13 respectively
Signal, second module 20 include second controller 21, the second power inverter 22 and the second full-bridge inverter 23, and institute
It states second controller 21 and sends driving signal respectively to second power inverter 22 and second full-bridge inverter 23, institute
It states the first controller 11 acquisition output total current and calculating current benchmark, first controller 11 is controlled to described second in real time
Device 21 sends the clock signal and current reference of full-bridge inverting, due to the mode for using synchronised clock and virtual value to track, so that
The sharing control of intermodule can be realized under the high-frequency work state of wireless power inversion system, that is, ensure that system control
Reliability, and saved control resource.
First module 10 and second module 20 export high-frequency alternating current respectively, and are superimposed shape in output end parallel connection
At the output total current.First controller 11 from the output end collection voltages current signal of first module 10, from
And it is used for closed loop feedback, while also undertaking over-voltage, overcurrent protection function.The second controller 21 is from second module 20
Output end collection voltages current signal, is also used for closed loop feedback, while also undertaking over-voltage, overcurrent protection function.
Since the switching frequency of first power inverter 12 is similar to the frequency of first full-bridge inverter 13, from
And cause the output of the first full-bridge inverter 13 that can not track real value, and first controller 11 passes through to the voltage
The sampled value of current signal carries out operation, obtains the virtual value of AC signal, becomes to reduce system to first power
The speed requirement of parallel operation 12 and first controller 11.In addition, first full-bridge inverter 13 export electric current if it is intended to
The given real value of tracking, the switching frequency of first power inverter 12 are at least higher than first full-bridge inverter 13
Frequency an order of magnitude (i.e. at least ten times more than), and frequency > 20kHz of usually first full-bridge inverter 13 is described
Frequency < 100kHz of first power inverter 12, is difficult to meet above-mentioned requirements.Meanwhile real value is tracked to first control
The requirement of device 11 can also increase, and therefore, use virtual value, rather than real value.
Similarly, due to the frequency phase of the switching frequency and second full-bridge inverter 23 of second power inverter 22
Seemingly, real value can not be tracked so as to cause second full-bridge inverter 23 output, the second controller 21 calculates the electricity
The sampled value of current voltage signal, as the virtual value of AC signal, to reduce system to second power inverter 22
With the speed requirement of the second controller 22.
The following detailed description of the control process of first controller 11 and the second controller 21.
The output total current is made comparisons with rated current, is exported after treatment after acquiring virtual value, and electricity is calculated
A reference value is flowed, is referred to as branch current, by branch output electric current after acquiring virtual value, makees ratio with the current reference value
Compared with specifically, being exported after being handled by software using being exported after processing.Wherein the branch output electric current refers to the second mould
The output electric current of block.The branch output electric current is made comparisons, by processing after acquiring virtual value with the current reference value
After export to first power inverter or the second power inverter, pass through and adjust first power inverter or the second function
The duty cycle adjustment inverter output current of rate converter.
In above-mentioned control process, two parts closed loop feedback is fed back comprising total current feedback and branch current, wherein total current
Current effective value of the feedback for control system output is constant in rated current；The branch current feedback is for controlling each branch
The equalization for exporting electric current, it is inverse eventually by the duty cycle adjustment for adjusting first power inverter or the second power inverter
Become output electric current, due to the control method of topological structure and centralization using master-slave mode, that is, ensure that system control
Reliability, and saved control resource.
Obviously, the above embodiments are merely examples for clarifying the description, does not limit the embodiments.For
For those of ordinary skill in the art, other different form variations can also be made on the basis of the above description or are become
It is dynamic.There is no necessity and possibility to exhaust all the enbodiments.And obvious variation extended from this or change
It moves still within the protection scope of the invention.
Claims (9)
1. a kind of radio energy transmission system modularization inversion source system, it is characterised in that: including the first module and at least one
Second module, first module include the first controller, the first power inverter and the first full-bridge inverter, and described the
One controller sends driving signal, second module to first power inverter and first full-bridge inverter respectively
Including second controller, the second power inverter and the second full-bridge inverter, and the second controller is to second function
Rate converter and second full-bridge inverter send driving signal respectively, and the first controller acquisition output total current is simultaneously real
When calculating current benchmark, first controller to the second controller send full-bridge inverting clock signal and electric current base
It is quasi-.
2. radio energy transmission system modularization inversion source system according to claim 1, it is characterised in that: first mould
Block and second module export high-frequency alternating current respectively, and are superimposed to form the output total current in output end parallel connection.
3. radio energy transmission system modularization inversion source system according to claim 1, it is characterised in that: first control
Output end collection voltages current signal of the device processed from first module.
4. radio energy transmission system modularization inversion source system according to claim 3, it is characterised in that: first control
Device processed carries out operation by the sampled value to the voltage and current signal, obtains the virtual value of AC signal.
5. radio energy transmission system modularization inversion source system according to claim 1, it is characterised in that: second control
Output end collection voltages current signal of the device processed from second module.
6. radio energy transmission system modularization inversion source system according to claim 5, it is characterised in that: second control
Device processed is calculated by the sampled value to the voltage and current signal, obtains the virtual value of AC signal.
7. radio energy transmission system modularization inversion source according to claim 1 or claim 2 system, it is characterised in that: described defeated
Total current is made comparisons with rated current, is exported after treatment after acquiring virtual value out, calculating current a reference value, as
Branch current reference is made comparisons, using processing by branch output electric current after acquiring virtual value with the current reference value
After export.
8. radio energy transmission system modularization inversion source system according to claim 7, it is characterised in that: the branch is defeated
Electric current refers to the output electric current of the second module out.
9. radio energy transmission system modularization inversion source system according to claim 7, it is characterised in that: the branch is defeated
Electric current is made comparisons after acquiring virtual value with the current reference value out, is exported after treatment to first power and is become
Parallel operation or the second power inverter, it is inverse by the duty cycle adjustment for adjusting first power inverter or the second power inverter
Become output electric current.
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| CN201910035679.0A CN109861400B (en) | 2019-01-15 | 2019-01-15 | Modular inversion source system of wireless electric energy transmission system |
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| CN201910035679.0A CN109861400B (en) | 2019-01-15 | 2019-01-15 | Modular inversion source system of wireless electric energy transmission system |
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