CN108281983A - Photovoltaic DC-to-AC converter monitoring control system and method based on power management bus - Google Patents
Photovoltaic DC-to-AC converter monitoring control system and method based on power management bus Download PDFInfo
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- CN108281983A CN108281983A CN201810166522.7A CN201810166522A CN108281983A CN 108281983 A CN108281983 A CN 108281983A CN 201810166522 A CN201810166522 A CN 201810166522A CN 108281983 A CN108281983 A CN 108281983A
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- 230000007257 malfunction Effects 0.000 claims description 7
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- 238000005516 engineering process Methods 0.000 description 5
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- H02J3/383—
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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
- G05B19/0423—Input/output
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The invention discloses a kind of photovoltaic DC-to-AC converter monitoring control system and method based on power management bus, which includes：The photovoltaic DC-to-AC converter of the converting direct-current power into alternating-current power by luminous energy conversion of preset quantity；It is connect by power management bus with each photovoltaic DC-to-AC converter, monitors the processor of the corresponding running parameter of each photovoltaic DC-to-AC converter；The connection that the present invention passes through power management bus using processor with each photovoltaic DC-to-AC converter, processor pair is monitored with it by the photovoltaic DC-to-AC converter that power management bus is connect, using the power management bus protocol for being applicable in digital power, the reliability and stability being monitored to photovoltaic DC-to-AC converter is improved；Meanwhile needs to external hardware monitor, monitor and discrete logic circuitry for delay are eliminated, reduce hardware and cost of labor.
Description
Technical field
The present invention relates to photovoltaic DC-to-AC converter monitoring field, more particularly to a kind of photovoltaic DC-to-AC converter based on power management bus
Monitoring control system and method.
Background technology
With environmental pollution, the getting worse of energy shortage a series of problems, people grind solar energy new energy field
Study carefully and invest more next big, solar power generation is divided into two kinds of forms, is photo-thermal power generation and photovoltaic generation respectively, and wherein photovoltaic generation is
The main application form of solar power generation.Under the development upsurge of photovoltaic industry, various photovoltaic products occur in succession, photovoltaic inversion
Device is most important one in these photovoltaic products.Usually each photovoltaic plant is made of solar panels square formation one by one,
Each square formation needs to arrange that several photovoltaic DC-to-AC converters, case become, the electric power such as photovoltaic combiner box and multiple alternating-current meters, direct current table are set
It is standby.
In the prior art, the mode being monitored to more photovoltaic DC-to-AC converters often utilizes external hardware monitor, monitoring
Device and for discrete logic circuitry of delay etc. to photovoltaic DC-to-AC converter into row data communication, system administration and the bus of control assist
View.However, the above method is in more inverters and machine operation, system data transmission speed, system response time is not fast enough；Through
The transmission reliability of the original photovoltaic circuit parameter of the photovoltaic DC-to-AC converters such as the voltage and current sampled by over-sampling modulate circuit
Not enough；When the discrete logic circuitry being specially arranged adjusts when going wrong and changes design parameter also and to spend certain
Between.Therefore, the reliability and stability being monitored to photovoltaic DC-to-AC converter how is improved, is exempted to external hardware monitoring
The needs of device, monitor and the discrete logic circuitry for delay reduce hardware and cost of labor, are to be badly in need of solving now
Problem.
Invention content
The object of the present invention is to provide a kind of photovoltaic DC-to-AC converter monitoring control system and method based on power management bus,
With using based on power management bus (power management bus, PMbus) integrated circuit, reduce hardware and manually at
This, improves the reliability and stability being monitored to photovoltaic DC-to-AC converter.
In order to solve the above technical problems, the present invention provides a kind of photovoltaic DC-to-AC converter monitoring control based on power management bus
System, including：
The photovoltaic DC-to-AC converter of the converting direct-current power into alternating-current power by luminous energy conversion of preset quantity；
It is connect by power management bus with each photovoltaic DC-to-AC converter, it is respectively right to monitor each photovoltaic DC-to-AC converter
The processor for the running parameter answered；Wherein, the running parameter includes control source output, electric current input and output, duty ratio, temperature
At least one of degree and malfunction.
Optionally, the photovoltaic DC-to-AC converter, including：
The unstable direct current that luminous energy converts is converted into the DC-DC converter of stable DC；
It is connect with the output end of the DC-DC converter, the stable DC that the DC-DC converter is exported is converted
At the DC-AC converters of alternating current；
It is adjusted with the input terminal and output end of the DC-DC converter and the output end of the DC-AC converters by sampling
Circuit connection is managed, the control chip of original photovoltaic circuit parameter is acquired；Wherein, the original photovoltaic circuit parameter includes the light
Lie prostrate input current, output current, input voltage and the output voltage of the DC-DC converter in inverter and the photovoltaic DC-to-AC converter
In DC-AC converters output current and output voltage.
Optionally, the control chip is specially the number that Digital Signal Processing is carried out to the original photovoltaic circuit parameter
Signal processor.
Optionally, which further includes：
It is connected to the processor, shows the running parameter and sends each photovoltaic DC-to-AC converter to the processor
The host computer of corresponding control instruction, to pass through the power management monitoring bus and the control photovoltaic DC-to-AC converter；Its
In, the control instruction includes that output voltage control instruction, working frequency control instruction, startup control instruction and closing control refer to
At least one of enable.
Optionally, when the host computer is ftp server, which further includes：
The long-range of the running parameter is obtained by accessing the ftp server by network connection with the host computer
Terminal.
In addition, the present invention also provides a kind of photovoltaic DC-to-AC converter method for monitoring and controlling based on power management bus, including：
Processor receives the photovoltaic circuit parameter of photovoltaic DC-to-AC converter by power management bus；Wherein, the photovoltaic circuit
Parameter is digital signal；
The running parameter of the photovoltaic DC-to-AC converter is generated according to the photovoltaic circuit parameter；Wherein, the running parameter packet
Include at least one of control source output, electric current input and output, duty ratio, temperature and malfunction；
The running parameter is sent to host computer.
Optionally, before photovoltaic circuit parameter of the processor by power management bus reception photovoltaic DC-to-AC converter, packet
It includes：
Control chip in the photovoltaic DC-to-AC converter utilizes the original photovoltaic circuit parameter of over-sampling modulate circuit acquisition；Its
In, the original photovoltaic circuit parameter include the input current of the DC-DC converter in the photovoltaic DC-to-AC converter, output current,
The output current and output voltage of DC-AC converters in input voltage and output voltage and the photovoltaic DC-to-AC converter；
Digital Signal Processing is carried out to the original photovoltaic circuit parameter, obtains the photovoltaic circuit parameter, and utilize institute
It states power management bus and the photovoltaic circuit parameter is sent to the processor.
Optionally, this method further includes：
The processor generates the corresponding control instruction of the photovoltaic DC-to-AC converter, by described according to the running parameter
Photovoltaic DC-to-AC converter described in power management bus marco；Or
The corresponding control instruction of the photovoltaic DC-to-AC converter that the processor is sent according to the host computer, passes through the electricity
Photovoltaic DC-to-AC converter described in source control bus marco；Wherein, the control instruction includes output voltage control instruction, working frequency control
System instruction starts at least one of control instruction and closing control instruction.
Optionally, described that the running parameter is sent to host computer when the host computer is ftp server, including：
The processor sets the data storage path for being transferred to the host computer of the running parameter to access FTP
The path of server.
Optionally, it is described the running parameter is sent to host computer after, further include：
Remote terminal obtains the running parameter by accessing the ftp server.
A kind of photovoltaic DC-to-AC converter monitoring control system based on power management bus provided by the present invention, including：It is default
The photovoltaic DC-to-AC converter of the converting direct-current power into alternating-current power by luminous energy conversion of quantity；Pass through power management with each photovoltaic DC-to-AC converter
Bus connects, and monitors the processor of the corresponding running parameter of each photovoltaic DC-to-AC converter；Wherein, running parameter includes that voltage is defeated
Enter at least one of output, electric current input and output, duty ratio, temperature and malfunction；
As it can be seen that the connection that the present invention passes through power management bus using processor with each photovoltaic DC-to-AC converter so that processing
Device pair can be monitored with it by the photovoltaic DC-to-AC converter that power management bus is connect, and the power supply pipe for being applicable in digital power is utilized
Bus protocol is managed, the reliability and stability being monitored to photovoltaic DC-to-AC converter is improved；Meanwhile it eliminating and external hardware is supervised
The needs of visual organ, monitor and the discrete logic circuitry for delay reduce hardware and cost of labor.In addition, of the invention
A kind of photovoltaic DC-to-AC converter method for monitoring and controlling based on power management bus is additionally provided, equally there is above-mentioned advantageous effect.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
A kind of photovoltaic DC-to-AC converter monitoring control system based on power management bus that Fig. 1 is provided by the embodiment of the present invention
Structure chart；
A kind of photovoltaic DC-to-AC converter monitoring control system based on power management bus that Fig. 2 is provided by the embodiment of the present invention
Typical connection diagram；
A kind of photovoltaic DC-to-AC converter method for monitoring and controlling based on power management bus that Fig. 3 is provided by the embodiment of the present invention
Flow chart；
A kind of photovoltaic DC-to-AC converter method for monitoring and controlling based on power management bus that Fig. 4 is provided by the embodiment of the present invention
Data transmission flow diagram.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to FIG. 1, Fig. 1 is supervised by a kind of photovoltaic DC-to-AC converter based on power management bus that the embodiment of the present invention provides
Control the structure chart of control system.The system can be with treasure-house：
The photovoltaic DC-to-AC converter 100 of the converting direct-current power into alternating-current power by luminous energy conversion of preset quantity；
It is connect by power management bus with each photovoltaic DC-to-AC converter 100, it is respectively corresponding to monitor each photovoltaic DC-to-AC converter 100
Running parameter processor 200；Wherein, running parameter includes control source output, electric current input and output, duty ratio, temperature
At least one of with malfunction.
Wherein, the processor 200 in the present embodiment can be the photovoltaic inversion connected by power management bus for it
The device that device is monitored can be by designer or user according to usage scenario and user for the concrete type of processor
Demand is voluntarily arranged, such as the microprocessor (microcontroller) as controlled chip may be used, and the present embodiment does not do this any
Limitation.Specifically, may be used with the same or analogous modes of Fig. 2, realize processor 200 (microcontroller) and each photovoltaic it is inverse
Become connection of the device 100 by power management bus, the present embodiment does not do this equally any restrictions.
It can be understood that.The purpose of the present embodiment can be that processor 200 utilizes power management bus and each photovoltaic
Inverter 100 is connected, and realizes and monitors each 100 corresponding running parameter of photovoltaic DC-to-AC converter.Processor 200 is monitored often
A concrete mode in its photovoltaic DC-to-AC converter 100 being connected by power management bus, can be by designer according to practical field
Corresponding program is voluntarily arranged in scape and user demand, as processor 200 can be inverse according to photovoltaic is received by power management bus
The photovoltaic circuit parameter for becoming device, generates corresponding running parameter；Wherein, photovoltaic circuit parameter can be as in photovoltaic DC-to-AC converter
DC-AC converters in input current, output current, input voltage and the output voltage and photovoltaic DC-to-AC converter of DC-DC converter
Output current and the corresponding digital signal of original photovoltaic circuit parameter such as output voltage.The present embodiment does not do this any limit
System.
Specifically, the number of the photovoltaic DC-to-AC converter 100 being connect by power management bus with processor 200 in the present embodiment
Amount, can be voluntarily arranged by designer or user according to practical scene, the present embodiment does not do this any restrictions.For processing
Device 200 can be that processor 200 passes through electricity by the specific connection type of power management bus and each photovoltaic DC-to-AC converter 100
Source control bus is connect with the control chip in photovoltaic DC-to-AC converter 100, it is, processor 200 can be total by power management
Line receives the photovoltaic circuit parameter that the control chip in each photovoltaic DC-to-AC converter 100 is sent.As long as processor 200 can pass through electricity
Source control bus receives the photovoltaic circuit parameter of photovoltaic DC-to-AC converter 100, is monitored to photovoltaic DC-to-AC converter 100, the present embodiment pair
This does not do any restrictions.
Corresponding, the photovoltaic DC-to-AC converter 100 in the present embodiment may include：The unstable direct current that luminous energy is converted
It is converted into the DC-DC converter of stable DC；It is connect with the output end of DC-DC converter, by DC-DC converter output
Stable DC is converted into the DC-AC converters of alternating current；Become with the input terminal and output end and DC-AC of DC-DC converter
The output end of parallel operation is connected by over-sampling modulate circuit, acquires the control chip of original photovoltaic circuit parameter；Wherein, original photovoltaic
Circuit parameter include the DC-DC converter in photovoltaic DC-to-AC converter input current, output current, input voltage and output voltage and
The output current and output voltage of DC-AC converters in photovoltaic DC-to-AC converter.
That is, the control chip in photovoltaic DC-to-AC converter 100 can utilize the original photovoltaic of over-sampling modulate circuit acquisition
Circuit parameter；Digital Signal Processing is carried out to original photovoltaic circuit parameter, obtains photovoltaic circuit parameter, and total using power management
Photovoltaic circuit parameter is sent to processor 200 by line.It, can be with for the concrete type of the control chip in photovoltaic DC-to-AC converter 100
To monitor the digital signal that the voltage and current value needed for photovoltaic DC-to-AC converter 100 was detected and handled transmission to processor 200
Processor.The present embodiment does not do this any restrictions.
Wherein, the system that this implementation is provided can also include the input with the DC-DC converter in photovoltaic DC-to-AC converter 100
End is connected, and converts light energy into the photovoltaic array of unstable direct current.
It is understood that the system that this implementation is provided can also include being connect with processor 200, each photovoltaic is shown
The host computer of 100 corresponding running parameter of inverter, to facilitate user can be directly by ipc monitor photovoltaic DC-to-AC converter
100.Corresponding, the processor 200 in the system that the present embodiment is provided can also utilize power management bus marco to connect in it
The photovoltaic DC-to-AC converter 100 connect such as sends control instruction by power management bus to the control chip of photovoltaic DC-to-AC converter 100.It is right
It, can be by processor 200 according to the photovoltaic electric of reception in the specific acquisition modes of specific control mode, that is, control instruction
The running parameter of road parameter or the photovoltaic DC-to-AC converter of generation 100 automatically generates；The instruction calls that can also be sent according to host computer
Or generate corresponding control instruction；The control instruction of host computer transmission can also directly be received.As long as processor 200 can pass through
Power management bus sends control instruction to photovoltaic DC-to-AC converter 100 and realizes control to photovoltaic DC-to-AC converter, the present embodiment to this not
Do any restrictions.
It should be noted that for the concrete type of control instruction, that is, processor 200 is to photovoltaic DC-to-AC converter 100
Specific Control Cooling can be voluntarily arranged by designer or user, such as may include output voltage control instruction and work frequency
Rate control instruction, to control output voltage, the working frequency of photovoltaic DC-to-AC converter 100；Can also include starting control instruction and pass
Control instruction is closed, to control the enabled and shutdown of photovoltaic DC-to-AC converter 100；It can also be including other such as system soft start, overvoltage, mistake
Control instruction corresponding with defencive functions such as excess temperatures is flowed, the present embodiment does not do this any restrictions.
Preferably, in order to facilitate user in remote monitoring photovoltaic DC-to-AC converter 100, the system that the present embodiment can be provided
In host computer be set as ftp server.Corresponding, the system that the present embodiment is provided can also include：Pass through with host computer
Network connection obtains the remote terminal of the running parameter of photovoltaic DC-to-AC converter 100 by accessing the ftp server.Likewise,
By host computer and remote terminal by other network connections, host computer is allow to send the running parameter of photovoltaic DC-to-AC converter 100
To remote terminal, it can also achieve the purpose that the present embodiment, the present embodiment do not do this any restrictions.
In the present embodiment, the embodiment of the present invention is total by power management using processor 200 and each photovoltaic DC-to-AC converter 100
The connection of line so that processor 200 pair can be monitored with the photovoltaic DC-to-AC converter 100 that it is connect by power management bus,
Using the power management bus protocol for being applicable in digital power, improve reliability that photovoltaic DC-to-AC converter 100 is monitored with it is steady
It is qualitative；Meanwhile needs to external hardware monitor, monitor and discrete logic circuitry for delay are eliminated, it reduces
Hardware and cost of labor.
Referring to FIG. 3, Fig. 3 is supervised by a kind of photovoltaic DC-to-AC converter based on power management bus that the embodiment of the present invention provides
Control the flow chart of control method.This method may include：
Step 101：Processor receives the photovoltaic circuit parameter of photovoltaic DC-to-AC converter by power management bus；Wherein, photovoltaic
Circuit parameter is digital signal.
Wherein, the processor in the present embodiment can be the photovoltaic DC-to-AC converter that is connected by power management bus for it into
The device of row monitoring can be by designer or user according to usage scenario and user demand for the concrete type of processor
Voluntarily it is arranged, such as the microprocessor as controlled chip may be used, the present embodiment does not do this any restrictions.In this step
Photovoltaic circuit parameter can be the input current such as the DC-DC converter in photovoltaic DC-to-AC converter, output current, input voltage and defeated
It is corresponding to go out the original photovoltaic circuit parameters such as output current and the output voltage of the DC-AC converters in voltage and photovoltaic DC-to-AC converter
Digital signal.
It is understood that the purpose of this step can be processor receives photovoltaic DC-to-AC converter by power management bus
Photovoltaic circuit parameter improves the primary light acquired in photovoltaic DC-to-AC converter using the power management bus protocol for being applicable in digital power
Lie prostrate the reliability and stability of the transmission of the corresponding digital signal (photovoltaic circuit parameter) of circuit parameter.Electricity is passed through for processor
Source control bus receives the concrete mode of the photovoltaic circuit parameter of photovoltaic DC-to-AC converter, it is, processor is total by power management
The specific connection type of line and each photovoltaic DC-to-AC converter can be that processor is received by power management bus in photovoltaic DC-to-AC converter
The photovoltaic circuit parameter that sends of control chip, it is, processor passes through in power management bus and each photovoltaic DC-to-AC converter
For detecting original photovoltaic circuit parameter, and the control chip that Digital Signal Processing is carried out to original photovoltaic circuit parameter connects.
As long as processor can receive the photovoltaic circuit parameter of photovoltaic DC-to-AC converter by power management bus, the present embodiment does not appoint this
What is limited.
It is corresponding, over-sampling modulate circuit can also be utilized to acquire including the control chip in photovoltaic DC-to-AC converter before this step
Original photovoltaic circuit parameter；Digital Signal Processing is carried out to original photovoltaic circuit parameter, obtains photovoltaic circuit parameter, and utilize
The step of photovoltaic circuit parameter is sent to processor by power management bus.Wherein, original photovoltaic circuit parameter includes that photovoltaic is inverse
Input current, output current, input voltage and the output voltage and the DC- in photovoltaic DC-to-AC converter for becoming the DC-DC converter in device
The output current and output voltage of AC converters.That is, control chip can pass through over-sampling modulate circuit and DC-DC respectively
The input terminal of converter is connected with output end and DC-AC converter output terminals.Specifically, the control chip in photovoltaic DC-to-AC converter can
To be specially the digital signal for the voltage and current value needed for processor monitoring photovoltaic DC-to-AC converter being detected and being handled transmission
Processor.
It is understood that the method that the present embodiment is provided is connect by power management bus with it with processor pair
A photovoltaic DC-to-AC converter monitoring for the displaying that carries out, for the light all being connect by power management bus with processor
The monitoring for lying prostrate inverter, may be used and be configured in the same or analogous mode of the present embodiment, the present embodiment does not appoint this
What is limited.It is corresponding, it, can for the specific connection line that whole photovoltaic DC-to-AC converters are connect with processor by power management bus
By using with Fig. 2 it is same or analogous in a manner of, realize processor (microcontroller) and photovoltaic DC-to-AC converter connection, the present embodiment pair
This does not do any restrictions equally.
Specifically, the specific stream of the photovoltaic circuit parameter of photovoltaic DC-to-AC converter is received by power management bus for processor
Method as shown in Figure 4 may be used in journey, and photovoltaic DC-to-AC converter monitoring control system first powers on, and system program brings into operation, just
Beginningization protocol stack and interrupt routine, initializtion protocol stack include port initialization, related register initialization etc..It is main after initialization
Program etc. is to be interrupted, and interruption is put into if there is interrupting.Host in Fig. 4 refers to that the master in system in power management bus sets
Standby i.e. processor microcontroller, slave refers to the photovoltaic DC-to-AC converter hung in power management bus in system.Host Idle
Affairs can be carried out, host and slave affairs are divided by power management bus writes affairs, read transaction and joint read-write affairs.Host
Start to write data and transmission data into affairs are write.Host enters read transaction and starts to read the data that slave sends over.
Interruption is returned after the completion of digital independent, executes next affairs.If digital independent fails, into data fault processing routine.Electricity
Data fault is divided into data transmission failure and data content failure by source control bus, and data transmission failure is divided into damaged data,
Transmission/reading position is very few, and host sends/read that byte is very few etc., and data content failure is divided into the inappropriate set of address byte,
Unsustained command code etc..Above procedure is ceaselessly recycled, photovoltaic DC-to-AC converter can be monitored in real time.
Step 102：The running parameter of photovoltaic DC-to-AC converter is generated according to photovoltaic circuit parameter；Wherein, running parameter includes electricity
Press at least one of input and output, electric current input and output, duty ratio, temperature and malfunction.
Wherein, the purpose of this step can be original photovoltaic circuit parameter pair of the processor according to the photovoltaic DC-to-AC converter of reception
The digital signal (photovoltaic circuit parameter) answered determines the running parameter of monitored photovoltaic DC-to-AC converter.For processor according to connecing
The photovoltaic circuit parameter of receipts generates the detailed process of the running parameter of photovoltaic DC-to-AC converter and the particular content of running parameter, Ke Yiyou
Designer is voluntarily arranged according to practical scene and user demand, and the present embodiment does not do this any restrictions.
It is understood that processor, can be inverse to photovoltaic by the running parameter of generation photovoltaic DC-to-AC converter in this step
Become device to be monitored；Running parameter can also be sent to host computer by step 103, user is facilitated to check light by host computer
The running parameter of inverter is lied prostrate, realizes the monitoring to photovoltaic DC-to-AC converter.Preferably, processor can also be according to the photovoltaic electric of reception
The running parameter of road parameter or the photovoltaic DC-to-AC converter of generation controls photovoltaic DC-to-AC converter by power management bus, realizes
Such as control output voltage, the working frequency of photovoltaic DC-to-AC converter；The enabled and shutdown of photovoltaic DC-to-AC converter is controlled according to reality；It is real
Existing system soft start, the defencive functions such as overvoltage, overcurrent and excess temperature.Although also having corresponding technology and control mode can be real in the past
The function of existing above-mentioned control photovoltaic DC-to-AC converter, but all too heavy in its programing work amount and control method, the present embodiment institute
The method of offer only needs simply to instruct by power management bus to utilize programming to realize above-mentioned function.
Step 103：Running parameter is sent to host computer.
Wherein, running parameter is sent to host computer and can be shown in host computer and preserves the work in this step and joined
Number, to realize that user can directly be monitored photovoltaic DC-to-AC converter by host computer；It can also be by host computer by running parameter
It is sent to remote terminal, to realize that user can be monitored photovoltaic DC-to-AC converter by remote terminal；It can also be by host computer
It is arranged to ftp server, the data storage path for being transferred to host computer of running parameter is set to access FTP clothes by processor
It is somebody's turn to do it is, directly storing running parameter in host computer with realizing that user can be accessed by remote terminal in the path of business device
Ftp server obtains running parameter.The present embodiment does not do this any restrictions.
Preferably, host computer can also send the monitored corresponding control instruction of photovoltaic DC-to-AC converter to processor, with reality
Now to the control function of photovoltaic DC-to-AC converter, the concrete mode of the control instruction is obtained for host computer, it can be by designer's root
Factually voluntarily it is arranged with scene and user demand, can such as instructs depending on the user's operation and generate corresponding control instruction；May be used also
To automatically generate corresponding control instruction according to the running parameter of reception, the present embodiment does not do this any restrictions.
In the present embodiment, the embodiment of the present invention receives the photovoltaic of photovoltaic DC-to-AC converter using processor by power management bus
Circuit parameter so that processor pair can be monitored with it by the photovoltaic DC-to-AC converter that power management bus is connect, using suitable
With the power management bus protocol of digital power, the reliability and stability being monitored to photovoltaic DC-to-AC converter is improved；Meanwhile
The needs to external hardware monitor, monitor and discrete logic circuitry for delay are eliminated, hardware and people are reduced
Work cost.
Based on a upper embodiment, processor can also be controlled by power management bus pair and its photovoltaic DC-to-AC converter,
To further increase user experience.Specifically, another photovoltaic inversion based on power management bus that the present embodiment is provided
Device method for monitoring and controlling can also include：
Processor generates the corresponding control instruction of photovoltaic DC-to-AC converter according to the running parameter of reception, total by power management
Line traffic control photovoltaic DC-to-AC converter；Or
Processor passes through power management bus marco light according to the corresponding control instruction of photovoltaic DC-to-AC converter that host computer is sent
Lie prostrate inverter；Wherein, control instruction includes output voltage control instruction, working frequency control instruction, starts control instruction and pass
Close at least one of control instruction.
It is understood that processor can send control instruction realization pair by power management bus to photovoltaic DC-to-AC converter
The control of photovoltaic DC-to-AC converter can be joined the specific acquisition modes of control instruction by processor according to the photovoltaic circuit of reception
The running parameter of number or the photovoltaic DC-to-AC converter generated automatically generates；The control instruction of host computer transmission can also directly be received.Only
Want processor that can send control of the control instruction realization to photovoltaic DC-to-AC converter to photovoltaic DC-to-AC converter by power management bus, this
Embodiment does not do this any restrictions.
It should be noted that for the concrete type of control instruction, that is, specific control of the processor to photovoltaic DC-to-AC converter
Type processed can be voluntarily arranged by designer or user, such as may include output voltage control instruction and working frequency control
Instruction, to control output voltage, the working frequency of photovoltaic DC-to-AC converter；Can also include that startup control instruction and closing control refer to
It enables, to control the enabled and shutdown of photovoltaic DC-to-AC converter；It can also be including other such as system soft start, overvoltage, overcurrent and excess temperature etc.
The corresponding control instruction of defencive function, the present embodiment do not do this any restrictions.
In the present embodiment, the embodiment of the present invention sends control instruction by processor by power management bus marco, real
Control of the power management bus to photovoltaic DC-to-AC converter is now utilized, user experience is further increased.
Each embodiment is described by the way of progressive in specification, the highlights of each of the examples are with other realities
Apply the difference of example, just to refer each other for identical similar portion between each embodiment.For method disclosed in embodiment
Speech, since it is corresponding with system disclosed in embodiment, so description is fairly simple, related place is referring to method part illustration
.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, depends on the specific application and design constraint of technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Above to the photovoltaic DC-to-AC converter monitoring control system provided by the present invention based on power management bus and method into
It has gone and has been discussed in detail.Principle and implementation of the present invention are described for specific case used herein, the above implementation
The explanation of example is merely used to help understand the method and its core concept of the present invention.It should be pointed out that for the general of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for logical technical staff, this
A little improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (10)
1. a kind of photovoltaic DC-to-AC converter monitoring control system based on power management bus, which is characterized in that including：
The photovoltaic DC-to-AC converter of the converting direct-current power into alternating-current power by luminous energy conversion of preset quantity；
It is connect by power management bus with each photovoltaic DC-to-AC converter, it is corresponding to monitor each photovoltaic DC-to-AC converter
The processor of running parameter；Wherein, the running parameter include control source output, electric current input and output, duty ratio, temperature and
At least one of malfunction.
2. the photovoltaic DC-to-AC converter monitoring control system according to claim 1 based on power management bus, which is characterized in that
The photovoltaic DC-to-AC converter, including：
The unstable direct current that luminous energy converts is converted into the DC-DC converter of stable DC；
It is connect with the output end of the DC-DC converter, the stable DC that the DC-DC converter is exported, which is converted, to strike a bargain
The DC-AC converters of galvanic electricity；
With the input terminal and output end of the DC-DC converter and the output end of the DC-AC converters by sampling conditioning electricity
Road connects, and acquires the control chip of original photovoltaic circuit parameter；Wherein, the original photovoltaic circuit parameter includes that the photovoltaic is inverse
Become in input current, output current, input voltage and output voltage and the photovoltaic DC-to-AC converter of the DC-DC converter in device
The output current and output voltage of DC-AC converters.
3. the photovoltaic DC-to-AC converter monitoring control system according to claim 2 based on power management bus, which is characterized in that
The control chip is specially the digital signal processor that Digital Signal Processing is carried out to the original photovoltaic circuit parameter.
4. the photovoltaic DC-to-AC converter monitoring control system according to any one of claims 1 to 3 based on power management bus,
It is characterized in that, further includes：
It is connected to the processor, shows the running parameter and sends each photovoltaic DC-to-AC converter respectively to the processor
The host computer of corresponding control instruction, to pass through the power management monitoring bus and the control photovoltaic DC-to-AC converter；Wherein, institute
It includes in output voltage control instruction, working frequency control instruction, startup control instruction and closing control instruction to state control instruction
At least one of.
5. the photovoltaic DC-to-AC converter monitoring control system according to claim 4 based on power management bus, which is characterized in that
When the host computer is ftp server, further include：
The long-range end of the running parameter is obtained by accessing the ftp server by network connection with the host computer
End.
6. a kind of photovoltaic DC-to-AC converter method for monitoring and controlling based on power management bus, which is characterized in that including：
Processor receives the photovoltaic circuit parameter of photovoltaic DC-to-AC converter by power management bus；Wherein, the photovoltaic circuit parameter
For digital signal；
The running parameter of the photovoltaic DC-to-AC converter is generated according to the photovoltaic circuit parameter；Wherein, the running parameter includes electricity
Press at least one of input and output, electric current input and output, duty ratio, temperature and malfunction；
The running parameter is sent to host computer.
7. the photovoltaic DC-to-AC converter method for monitoring and controlling according to claim 6 based on power management bus, which is characterized in that
Before the processor receives the photovoltaic circuit parameter of photovoltaic DC-to-AC converter by power management bus, including：
Control chip in the photovoltaic DC-to-AC converter utilizes the original photovoltaic circuit parameter of over-sampling modulate circuit acquisition；Wherein, institute
State input current, output current that original photovoltaic circuit parameter includes the DC-DC converter in the photovoltaic DC-to-AC converter, input electricity
The output current and output voltage of pressure and the DC-AC converters in output voltage and the photovoltaic DC-to-AC converter；
Digital Signal Processing is carried out to the original photovoltaic circuit parameter, obtains the photovoltaic circuit parameter, and utilize the electricity
The photovoltaic circuit parameter is sent to the processor by source control bus.
8. the photovoltaic DC-to-AC converter method for monitoring and controlling according to claim 7 based on power management bus, which is characterized in that
Further include：
The processor generates the corresponding control instruction of the photovoltaic DC-to-AC converter, passes through the power supply according to the running parameter
Manage photovoltaic DC-to-AC converter described in bus marco；Or
The corresponding control instruction of the photovoltaic DC-to-AC converter that the processor is sent according to the host computer, passes through the power supply pipe
Manage photovoltaic DC-to-AC converter described in bus marco；Wherein, the control instruction includes that output voltage control instructs, working frequency control refers to
It enables, start at least one of control instruction and closing control instruction.
9. according to photovoltaic DC-to-AC converter method for monitoring and controlling of claim 6 to 8 any one of them based on power management bus,
It is characterized in that, it is described that the running parameter is sent to host computer when the host computer is ftp server, including：
The processor sets the data storage path for being transferred to the host computer of the running parameter to access FTP service
The path of device.
10. the photovoltaic DC-to-AC converter method for monitoring and controlling according to claim 9 based on power management bus, feature exist
In, it is described the running parameter is sent to host computer after, further include：
Remote terminal obtains the running parameter by accessing the ftp server.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810166522.7A CN108281983A (en) | 2018-02-28 | 2018-02-28 | Photovoltaic DC-to-AC converter monitoring control system and method based on power management bus |
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| CN201810166522.7A CN108281983A (en) | 2018-02-28 | 2018-02-28 | Photovoltaic DC-to-AC converter monitoring control system and method based on power management bus |
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| CN109144034A (en) * | 2018-09-27 | 2019-01-04 | 北京铂阳顶荣光伏科技有限公司 | A kind of parameter regulation means and terminal of photovoltaic DC-to-AC converter |
| CN114024291A (en) * | 2021-11-10 | 2022-02-08 | 广东工业大学 | Multi-control component-level rapid shutoff device |
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| CN208062807U (en) * | 2018-02-28 | 2018-11-06 | 广东工业大学 | A kind of photovoltaic DC-to-AC converter monitoring control system based on power management bus |
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| CN114024291A (en) * | 2021-11-10 | 2022-02-08 | 广东工业大学 | Multi-control component-level rapid shutoff device |
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