CN208062807U - A kind of photovoltaic DC-to-AC converter monitoring control system based on power management bus - Google Patents
A kind of photovoltaic DC-to-AC converter monitoring control system based on power management bus Download PDFInfo
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- CN208062807U CN208062807U CN201820285928.2U CN201820285928U CN208062807U CN 208062807 U CN208062807 U CN 208062807U CN 201820285928 U CN201820285928 U CN 201820285928U CN 208062807 U CN208062807 U CN 208062807U
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- photovoltaic
- converter
- power management
- management bus
- processor
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Abstract
The utility model discloses a kind of photovoltaic DC-to-AC converter monitoring control systems based on power management bus, 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, monitors the processor of each corresponding running parameter of photovoltaic DC-to-AC converter；Wherein, the running parameter includes at least one of control source output, electric current input and output, duty ratio, temperature and malfunction；The connection that the utility model 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 utility model is related to photovoltaic DC-to-AC converter monitoring field, more particularly to a kind of photovoltaic based on power management bus is inverse
Become device monitoring control system.
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.
Utility model content
The purpose of this utility model is to provide a kind of photovoltaic DC-to-AC converter monitoring control system based on power management bus, profit
With the integrated circuit based on power management bus (power management bus, PMbus), hardware and cost of labor are reduced,
Improve the reliability and stability being monitored to photovoltaic DC-to-AC converter.
In order to solve the above technical problems, the utility model provides a kind of photovoltaic DC-to-AC converter monitoring based on power management bus
Control 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 with the input terminal of the DC-DC converter, converts light energy into the photovoltaic array of unstable direct current.
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.
A kind of photovoltaic DC-to-AC converter monitoring control system based on power management bus provided by the utility model, including：
The photovoltaic DC-to-AC converter of the converting direct-current power into alternating-current power by luminous energy conversion of preset quantity；Pass through with each photovoltaic DC-to-AC converter
Power management bus connects, and monitors the processor of each corresponding running parameter of photovoltaic DC-to-AC converter；Wherein, the work
Include at least one of control source output, electric current input and output, duty ratio, temperature and malfunction as parameter；
As it can be seen that the connection that the utility model passes through power management bus using processor with each photovoltaic DC-to-AC converter so that
Processor pair can be monitored with it by the photovoltaic DC-to-AC converter that power management bus is connect, and the electricity for being applicable in digital power is utilized
Source control bus protocol improves the reliability and stability being monitored to photovoltaic DC-to-AC converter；Meanwhile it eliminating to external hard
The needs of part monitor, monitor and the discrete logic circuitry for delay reduce hardware and cost of labor.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 monitors control by a kind of photovoltaic DC-to-AC converter based on power management bus that the utility model embodiment provides
The structure chart of system；
Fig. 2 monitors control by a kind of photovoltaic DC-to-AC converter based on power management bus that the utility model embodiment provides
The typical connection diagram of system.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Referring to FIG. 1, a kind of photovoltaic inversion based on power management bus that Fig. 1 is provided by the utility model embodiment
The structure chart of device monitoring 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 utility model embodiment passes through power supply pipe using processor 200 with each photovoltaic DC-to-AC converter 100
Manage the connection of bus so that processor 200 pair can be supervised with the photovoltaic DC-to-AC converter 100 that it is connect by power management bus
Control, using the power management bus protocol for being applicable in digital power, improve reliability that photovoltaic DC-to-AC converter 100 is monitored with
Stability；Meanwhile needs to external hardware monitor, monitor and discrete logic circuitry for delay are eliminated, subtract
Hardware and cost of labor are lacked.
To provided by the utility model, the photovoltaic DC-to-AC converter monitoring control system based on power management bus carries out above
It is discussed in detail.Specific case used herein is expounded the principles of the present invention and embodiment, the above reality
The explanation for applying example is merely used to help understand the method and its core concept of the utility model.It should be pointed out that being led for this technology
For the those of ordinary skill in domain, without departing from the principle of this utility model, if can also be carried out to the utility model
Dry improvement and modification, modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (6)
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 claim 3 based on power management bus, which is characterized in that
Further include：
It is connected with the input terminal of the DC-DC converter, converts light energy into the photovoltaic array of unstable direct current.
5. the photovoltaic DC-to-AC converter monitoring control system according to any one of claims 1 to 4 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.
6. the photovoltaic DC-to-AC converter monitoring control system according to claim 5 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820285928.2U CN208062807U (en) | 2018-02-28 | 2018-02-28 | A kind of photovoltaic DC-to-AC converter monitoring control system based on power management bus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820285928.2U CN208062807U (en) | 2018-02-28 | 2018-02-28 | A kind of photovoltaic DC-to-AC converter monitoring control system based on power management bus |
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| Publication Number | Publication Date |
|---|---|
| CN208062807U true CN208062807U (en) | 2018-11-06 |
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| CN201820285928.2U Expired - Fee Related CN208062807U (en) | 2018-02-28 | 2018-02-28 | A kind of photovoltaic DC-to-AC converter monitoring control system based on power management bus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281983A (en) * | 2018-02-28 | 2018-07-13 | 广东工业大学 | Photovoltaic DC-to-AC converter monitoring control system and method based on power management bus |
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2018
- 2018-02-28 CN CN201820285928.2U patent/CN208062807U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281983A (en) * | 2018-02-28 | 2018-07-13 | 广东工业大学 | Photovoltaic DC-to-AC converter monitoring control system and method based on power management bus |
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Granted publication date: 20181106 Termination date: 20210228 |