CN109546854A - The converter system and its control method, power grid of compatible different loads - Google Patents
The converter system and its control method, power grid of compatible different loads Download PDFInfo
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- CN109546854A CN109546854A CN201811467511.9A CN201811467511A CN109546854A CN 109546854 A CN109546854 A CN 109546854A CN 201811467511 A CN201811467511 A CN 201811467511A CN 109546854 A CN109546854 A CN 109546854A
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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
- H02J4/00—Circuit arrangements for mains or distribution networks not specified as ac or dc
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of converter system of compatible different loads and its control methods, power grid, wherein the system includes: power supply, for being load supplying；Power adapter is located between power supply and load, including two-way conversion circuit: the first conversion circuit, for power supply to be converted to exchange output；With the second conversion circuit, for power supply to be converted to direct current output；Switching device is controlled, between power supply and power adapter, switches to conversion circuit corresponding with the type of load for control system；Wherein, the type of load is DC load, and/or, AC load.The present invention solves the problems, such as that current transformer is incompatible to different types of load in the prior art, improves the compatibility and intelligence of converter system.
Description
Technical field
The present invention relates to converter topology fields, a kind of converter system in particular to compatible different loads and
Its control method, power grid.
Background technique
In real life, the energy that photovoltaic power generation generates cannot be applied directly, often require to use current transformer to photovoltaic
Electricity is adjusted.There are a variety of loads in life can be divided into DC load, AC load according to different power supply modes.At present
Current transformer load it is most be single type loads, be all AC load or DC load, current transformer can not be common to
The all types of load of a variety of differences, when load includes a plurality of types of loads, current transformer cannot use or need multiple unsteady flows
Device, existing current transformer intelligence degree are inadequate.
For the problem that current transformer in the related technology is incompatible to different types of load, not yet propose effectively to solve at present
Certainly scheme.
Summary of the invention
The present invention provides a kind of converter system of compatible different loads and its control methods, power grid, at least to solve
The current transformer problem incompatible to different types of load in the prior art.
In order to solve the above technical problems, according to an aspect of an embodiment of the present invention, providing a kind of compatible different loads
Converter system, comprising: power supply, for be load supplying；Power adapter is located between power supply and load, including two-way
Conversion circuit: the first conversion circuit, for power supply to be converted to exchange output；With the second conversion circuit, for converting power supply
For direct current output；Switching device is controlled, between power supply and power adapter, switches to the class with load for control system
The corresponding conversion circuit of type；Wherein, the type of load is DC load, and/or, AC load.
Further, power supply is DC power supply, and DC power supply includes at least following one: photovoltaic power generation apparatus, wind-force hair
Electric installation.
Further, control switching device includes: switching circuit, between power supply and power adapter, for connecting
Power supply and the first conversion circuit, and/or, power supply and the second conversion circuit；Controller is connect with switching circuit, for by cutting
Circuit is changed, control system switches to conversion circuit corresponding with the type of load.
Further, switching circuit includes: first switch circuit, between power supply and the first conversion circuit, is used for
When load includes AC load, closure, to be powered by power supply as AC load；Second switch circuit is located at power supply and second
Between conversion circuit, for when load includes DC load, closure to be powered using passing through power supply as DC load.
Further, further includes: network system；Network system includes: power grid, is located at the first conversion circuit and load
Between, the exchange for receiving the first conversion circuit exports, or, powering when load includes AC load for AC load.
Further, network system further include: third switching circuit is used between the first conversion circuit and power grid
When the output power of power supply is greater than the consumption power of load, closure, by the extra electric energy in addition to load consumption of power supply
It is connected to the grid；4th switching circuit is located between power grid and load, for including the output work of AC load and power supply in load
When rate is less than the consumption power of load, closure, to be powered by power grid as AC load.
Further, further includes: energy-storage system；Energy-storage system includes: energy storage device, is located at the second conversion circuit and load
Between, for receiving the direct current output of the second conversion circuit and being stored, or, negative for direct current when load includes DC load
Carry power supply.
Further, energy-storage system further include: the 5th switching circuit, between the second conversion circuit and energy storage device,
When being greater than the consumption power of load for the output power in power supply, closure, by the extra in addition to load consumption of power supply
Electric energy is stored；6th switching circuit is located between energy storage device and load, for including DC load and power supply in load
Output power be less than load consumption power when, closure, using by energy storage device be DC load power supply.
Further, further includes: the 7th switching circuit, between energy storage device and power grid, for controlling power grid to storage
Energy device charges.
Further, further includes: output-controlling device, input terminal is connect with power grid, energy storage device and power adapter, defeated
Outlet and load connect, and are used for power grid, and/or, energy storage device, and/or, the electric energy of power adapter input is adjusted,
Think load supplying.
Further, output-controlling device includes: the control device being sequentially connected and load access device；Wherein, it controls
Device is used for power grid, and/or, energy storage device, and/or, the electric energy of power adapter input is adjusted；Load access dress
It sets, load is supplied to for the electric energy after adjusting control device, for load supplying.
Further, control device includes: voltage regulator module, the input terminal connection of one end and control device, the other end
It is connect with load access device, the voltage of the electric energy for adjusting input, to adapt to the voltage of load.
Further, control device further include: the input terminal of output monitoring modular, one end and control device connects, another
End is connect with load access device, the output parameter for real-time monitoring output-controlling device；Indicating module, one end and control fill
The input terminal connection set, the other end is connect with load access device, for showing the working condition of output-controlling device.
Further, further includes: human-computer interaction device is connect with output monitoring modular, for receiving output monitoring modular
The output parameter of monitoring is simultaneously shown to user, and receives the control parameter of user's input.
Further, human-computer interaction device is also connect with controller, for determining the type of load, and by the type of load
It is sent to controller.
Further, human-computer interaction interface determines the type of load by receiving the load parameter of user's input, or, logical
The option for providing a user the type of load is crossed, and identifies the option of user's selection to determine the type of load.
Further, further includes: filter is located between power supply and control switching device, for the output to power supply
It is filtered.
According to another aspect of an embodiment of the present invention, a kind of controlling party of the converter system of compatible different loads is provided
Method, applied to such as above-mentioned system, comprising: the type for determining load determines that corresponding power supply converts electricity according to the type of load
Road；Wherein, the type of load is DC load, and/or, AC load；Control system switches to the corresponding electricity of type of load
Power-switching circuit, to pass through power supply as load supplying.
Further, it is determined that load type include: by human-computer interaction device receive user input load parameter come
Determine the type of load；Or, providing a user the option of the type of load, and the option of user's selection is identified to determine load
Type.
Further, corresponding power-switching circuit is determined according to the type of load, comprising: only include in the type of load
When AC load, determine that corresponding power-switching circuit is the first conversion circuit；When the type of load only includes DC load,
Determine that corresponding power-switching circuit is the second conversion circuit；When the type of load includes AC load and DC load, really
Fixed corresponding power-switching circuit is the first conversion circuit and the second conversion circuit.
Further, control system switches to the corresponding power-switching circuit of type of load, comprising: in the type of load
When only including AC load, first switch closing of circuit is controlled；Wherein, first switch circuit is located at power supply and the first conversion circuit
Between；When the type of load only includes DC load, second switch closing of circuit is controlled；Wherein, second switch circuit is located at
Between power supply and the second conversion circuit；When the type of load includes AC load and DC load, first switch circuit is controlled
With second switch closing of circuit.
Further, after for load supplying, further includes: detect the output power of power supply and the consumption power of load；
When the output power of power supply is greater than the consumption power of load, control third switching circuit closure disappears the load that removes of power supply
Extra electric energy except consumption is connected to the grid, and/or, control the 5th switching circuit closure, by power supply in addition to load consumption
Extra power storage to energy storage device；Wherein, third switching circuit is between the first conversion circuit and power grid；5th switch
Circuit is between the second conversion circuit and energy storage device；When the output power of power supply is less than the consumption power of load, according to
The type of load executes corresponding control strategy.
Further, corresponding control strategy is executed according to the type of load, comprising: only include exchange in the type of load
When load, control the 4th switching circuit closure, to be powered by power grid as AC load；Wherein, the 4th switching circuit is located at electricity
Between net and load；When the type of load only includes DC load, control the 6th switching circuit closure, to pass through energy storage device
For DC load power supply；Wherein, the 6th switching circuit is located between energy storage device and load；It include that exchange is negative in the type of load
When carrying with DC load, the 4th switching circuit and the 6th switching circuit closure are controlled, to be powered by power grid as AC load, with
And by energy storage device be DC load power.
Further, corresponding control strategy is executed according to the type of load, further includes: only include directly in the type of load
Current load, or, the type of load includes AC load and DC load, and when power supply can not charge to energy storage device, control
The 7th switching circuit closure is made, to charge by power grid as energy storage device；Wherein, the 7th switching circuit is located at energy storage device and electricity
Between net.
Another aspect according to an embodiment of the present invention, provides a kind of power grid, including such as above-mentioned compatibility different loads
Converter system.
Another aspect according to an embodiment of the present invention, provides a kind of computer equipment, including memory, processor and deposits
The computer program that can be run on a memory and on a processor is stored up, processor is realized such as above-mentioned compatibility not when executing program
With the control method of the converter system of load.
Another aspect according to an embodiment of the present invention provides a kind of storage medium comprising computer executable instructions,
Computer executable instructions by computer processor when being executed for executing the current transformer system such as above-mentioned compatibility different loads
The control method of system.
In the present invention, a kind of converter system of compatible different loads is provided, according to the type Switching power of load
Conversion circuit, with for it is different types of load provide its type corresponding electric energy so that the system different type is loaded it is simultaneous
Hold power supply, to efficiently solve the problems, such as that current transformer is incompatible to different types of load in the prior art, improves change
Flow the compatibility and intelligence of device system.
Detailed description of the invention
Fig. 1 is a kind of optional structural block diagram of the converter system of according to embodiments of the present invention 1 compatibility different loads；
Fig. 2 is the optional structural frames of another kind of the converter system of according to embodiments of the present invention 1 compatibility different loads
Figure；
Fig. 3 is a kind of according to embodiments of the present invention 1 optional structural block diagram of output-controlling device；And
Fig. 4 is that one kind of the control method of the converter system of according to embodiments of the present invention 2 compatibility different loads is optional
Flow chart.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Embodiment 1
A kind of converter system of compatible different loads is provided in the preferred embodiment of the invention 1.Specifically, scheme
1 shows a kind of optional structural block diagram of this method, as shown in Figure 1, the system includes:
Power supply 102, for powering for load 104；
Power adapter 106 is located between power supply 102 and load 104, including two-way conversion circuit: the first conversion circuit,
For power supply to be converted to exchange output；With the second conversion circuit, for power supply to be converted to direct current output；
Control switching device 108 is switched to and is born for control system between power supply 102 and power adapter 106
The corresponding conversion circuit of the type of load；Wherein, the type of load is DC load, and/or, AC load.
In the above-described embodiment, a kind of converter system of compatible different loads is provided, is cut according to the type of load
Power-switching circuit is changed, to provide its type corresponding electric energy for different types of load, so that the system is negative to different type
The compatible power supply of load, to efficiently solve the problems, such as that current transformer is incompatible to different types of load in the prior art, mentions
The high compatibility and intelligence of converter system.
In the present invention, power supply is DC power supply, and DC power supply includes at least following one: photovoltaic power generation apparatus, wind-force
Power generator.
Below by taking power supply is photovoltaic power generation apparatus as an example, the converter system of the compatibility different loads in the present invention is carried out
Explanation is explained in detail, the system structure diagram is as shown in Figure 2.
In one preferred embodiment of the invention, control switching device includes: switching circuit, is located at power supply and power supply
Between converter, for connecting power supply and the first conversion circuit, i.e. DC/AC converter, and/or, power supply and the second conversion circuit,
DC/DC converter；Controller is connect with switching circuit, for by switching circuit, control system to switch to the type with load
Corresponding conversion circuit.Further, switching circuit includes: first switch circuit, such as the S1 in Fig. 2, is located at power supply and first
Between conversion circuit, for when load includes AC load, closure to be powered using passing through power supply as AC load；Second switch
Circuit, if the S2 in Fig. 2 is used for when load includes DC load, closure between power supply and the second conversion circuit, with
It is DC load power supply by power supply.In the above-described embodiment, it includes following situation that load, which includes AC load: being loaded to hand over
Current load, or, load is AC load and DC load.It may include two kinds of situations that i.e. load, which includes AC load,.Similarly, it bears
Carry include DC load also includes following situation: being loaded as DC load, or, load is AC load and DC load.
In presently preferred embodiment, system further include: network system；Network system includes: power grid,
Between the first conversion circuit and load, the exchange for receiving the first conversion circuit is exported, or, including that exchange is negative in load
It powers when load for AC load.Preferably, network system further include: third switching circuit S3 is located at the first conversion circuit and electricity
Between net, when being greater than the consumption power of load for the output power in power supply, closure, by power supply in addition to load consumption
Extra electric energy be connected to the grid；4th switching circuit S4, be located at power grid and load between, for load include AC load and
When the output power of power supply is less than the consumption power of load, closure, to be powered by power grid as AC load.
Further, further includes: energy-storage system；Energy-storage system includes: energy storage device, is located at the second conversion circuit and load
Between, for receiving the direct current output of the second conversion circuit and being stored, or, negative for direct current when load includes DC load
Carry power supply.Energy-storage system further include: the 5th switching circuit, between the second conversion circuit and energy storage device, in power supply
Output power be greater than load consumption power when, closure, the extra electric energy in addition to load consumption of power supply is deposited
Storage；6th switching circuit is located between energy storage device and load, for including the output power of DC load and power supply in load
Less than load consumption power when, closure, using by energy storage device be DC load power supply.
It, not only can be by power supply powering load, but also in view of there may be not for the load of power supply i.e. in the present invention
The case where being enough powering load and the case where exceed loading demand, for the underload feelings with powering load of power grid
Condition, using other form of power, including power grid (corresponding AC load) and energy storage device (corresponding DC load), to inhomogeneity
The load of type provides stand-by electric energy.And the case where exceeding loading demand for power supply, current transformer in the prior art cannot be to removing
Extra electric energy except load consumption carries out energy utilization, there is a problem of that capacity usage ratio is low, to improve energy utilization efficiency,
The present invention also passes through power grid and energy storage device and recycles to extra electric energy, realizes to current transformer intelligence energy management.
Also, when output end is unloaded, system can default S1 and hold the pass S2, charge to energy storage device, charging terminates
S2, closure S1 are disconnected afterwards, and providing auxiliary power amount is connected to the grid.
Optionally, this system further include: the 7th switching circuit S7, between energy storage device and power grid, for controlling electricity
Net charges to energy storage device.When the not enough power supply of energy storage device and when photovoltaic power generation can not charge to it, controller
S7 can be connected, is charged by power grid to energy storage device.
S1~S7 is the switching devices such as switching tube, analog switch or contactor.
In another preferred embodiment of the invention, system further include: output-controlling device, input terminal and power grid,
Energy storage device is connected with power adapter, and output end and load connect, and is used for power grid, and/or, energy storage device, and/or, electricity
The electric energy of source converter input is adjusted, for load supplying.As previously mentioned, power grid and energy storage device can be in power supply deficiencies
With to provide auxiliary power supply when load supplying, therefore, output-controlling device and input terminal and power grid, energy storage device and power supply are converted
Device connection.Fig. 3 shows a kind of optional structural block diagram of output-controlling device.
As shown in figure 3, output-controlling device includes: the control device being sequentially connected and load access device；Wherein, it controls
Device is used for power grid, and/or, energy storage device, and/or, the electric energy of power adapter input is adjusted；Load access dress
It sets, load is supplied to for the electric energy after adjusting control device, for load supplying.Control device includes: voltage adjustment mould
The input terminal of block, one end and control device connects, and the other end is connect with load access device, the electricity of the electric energy for adjusting input
Pressure, to adapt to the voltage of load.Monitoring modular is exported, the input terminal connection of one end and control device, the other end and load access
Device connection, the output parameter for real-time monitoring output-controlling device；The input terminal of indicating module, one end and control device connects
It connects, the other end is connect with load access device, for showing the working condition of output-controlling device.Load access is by multi-channel analog
Switch composition can access multichannel loading (including same type load or different type load) simultaneously, be loaded switching module and be negative
Load is powered, by indicating module show output end working condition, while export monitoring modular can real-time monitoring output voltage,
The parameters such as electric current and power.
Preferably, this system further include: human-computer interaction device is connect with output monitoring modular, for receiving output monitoring
The output parameter of module monitors is simultaneously shown to user, and receives the control parameter of user's input.Output monitoring modular can supervise in real time
The parameters such as output voltage, electric current and power are surveyed, human-computer interaction device is transferred data to, improves the man-machine friendship of entire current transformer
Mutual effect.In entire intelligent converter system operational process, the status data of work will be according to user demand by controller benefit
With communications feedback to human-computer interaction device, user can check related work data and carry out state setting to current transformer,
Limited including output voltage, peak power output etc., realize man-machine interactive operation.Human-computer interaction device can for display screen, APP or
Webpage etc. is attached between controller and human-computer interaction device using wired or wireless communication mode.
Meanwhile human-computer interaction device is also connect with controller, is sent for determining the type of load, and by the type of load
To controller.Wherein, human-computer interaction interface determines the type of load by receiving the load parameter of user's input, or, passing through
The option of the type of load is provided a user, and identifies the option of user's selection to determine the type of load.
When output end is accessed and loaded, user utilizes in the powered types and voltage of human-computer interaction device setting load
Communication (wire communication or wireless communication) device is transferred to controller, and it is logical that controller will switch S1, S2 switch according to user instructions
Disconnected (S1 opens the pass S2 when AC load, and S1 closes S2 and opens when DC load), carries out corresponding DC/AC or DC/DC transformation, and using defeated
The voltage of outlet is adjusted to the corresponding supply voltage of load configuration, is loaded the switching module load that is negative and is powered, by instruction mould
Block shows the working condition of output end, while exporting the parameters such as monitoring modular meeting real-time monitoring output voltage, electric current and power, will
Data are transferred to human-computer interaction device.
Further, system further include: filter is located between power supply and control switching device, for power supply
Output is filtered.
It can be seen from the above content that this system realizes the compatible power supply that current transformer loads different type, and support more
Road output carries out energy management to input photovoltaic electricity, and realizes the intelligent interaction between user and current transformer, improves user's body
It tests and using effect.
Embodiment 2
A kind of controlling party of the converter system of compatible different loads is additionally provided in the preferred embodiment of the invention 2
Method, applied to the system of such as above-described embodiment 1, specifically, Fig. 4 shows a kind of optional flow chart of this method, such as Fig. 4 institute
Show, this method comprises the following steps S402-S404:
S402: it determines the type of load, corresponding power-switching circuit is determined according to the type of load；Wherein, load
Type is DC load, and/or, AC load；
S404: control system switches to the corresponding power-switching circuit of type of load, to pass through power supply as load supplying.
In the above-described embodiment, a kind of control method of the converter system of compatible different loads is provided, according to negative
The type Switching power conversion circuit of load, to provide its type corresponding electric energy for different types of load, so that the system pair
The compatible power supply of different type load, so that it is incompatible to different types of load to efficiently solve current transformer in the prior art
The problem of, improve the compatibility and intelligence of converter system.
In one preferred embodiment of the invention, determine that the type of load includes: to receive by human-computer interaction device
The load parameter of user's input determines the type of load；Or, providing a user the option of the type of load, and identify that user selects
The option selected determines the type of load.
Preferably, corresponding power-switching circuit is determined according to the type of load, comprising: only include friendship in the type of load
When current load, determine that corresponding power-switching circuit is the first conversion circuit；When the type of load only includes DC load, really
Fixed corresponding power-switching circuit is the second conversion circuit；When the type of load includes AC load and DC load, determine
Corresponding power-switching circuit is the first conversion circuit and the second conversion circuit.
Further, control system switches to the corresponding power-switching circuit of type of load, comprising: in the type of load
When only including AC load, first switch closing of circuit is controlled；Wherein, first switch circuit is located at power supply and the first conversion circuit
Between；When the type of load only includes DC load, second switch closing of circuit is controlled；Wherein, second switch circuit is located at
Between power supply and the second conversion circuit；When the type of load includes AC load and DC load, first switch circuit is controlled
With second switch closing of circuit.
In presently preferred embodiment, after for load supplying, further includes: detect the output of power supply
The consumption power of power and load；When the output power of power supply is greater than the consumption power of load, control third switching circuit is closed
It closes, the extra electric energy in addition to load consumption of power supply is connected to the grid, and/or, control the 5th switching circuit closure will
The extra power storage in addition to load consumption of power supply is to energy storage device；Wherein, third switching circuit is located at the first conversion electricity
Between road and power grid；5th switching circuit is between the second conversion circuit and energy storage device；It is less than in the output power of power supply
When the consumption power of load, corresponding control strategy is executed according to the type of load.
Wherein, corresponding control strategy is executed according to the type of load, comprising: only include AC load in the type of load
When, control the 4th switching circuit closure, to be powered by power grid as AC load；Wherein, the 4th switching circuit be located at power grid and
Between load；When the type of load only includes DC load, control the 6th switching circuit closure, to be straight by energy storage device
Current load power supply；Wherein, the 6th switching circuit is located between energy storage device and load；The type of load include AC load and
When DC load, the 4th switching circuit and the 6th switching circuit closure are controlled, to be powered by power grid as AC load, and,
It is DC load power supply by energy storage device.
Optionally, corresponding control strategy is executed according to the type of load, further includes: only include direct current in the type of load
Load, or, the type of load includes AC load and DC load, and when power supply can not charge to energy storage device, control
7th switching circuit closure, to be charged by power grid as energy storage device；Wherein, the 7th switching circuit is located at energy storage device and power grid
Between.
By the above-mentioned means, realizing the compatible power supply that current transformer loads different type, and multiple-channel output is supported, to defeated
Enter photovoltaic electricity and carry out energy management, and realize the intelligent interaction between user and current transformer, the user experience is improved and uses effect
Fruit.
Embodiment 3
The converter system of the compatibility different loads provided in 1 based on the above embodiment, in the preferred embodiment of the invention 3
In additionally provide a kind of power grid, the converter system of the compatibility different loads including such as above-described embodiment 1.
In the above-described embodiment, a kind of converter system of compatible different loads is provided, is cut according to the type of load
Power-switching circuit is changed, to provide its type corresponding electric energy for different types of load, so that the system is negative to different type
The compatible power supply of load, to efficiently solve the problems, such as that current transformer is incompatible to different types of load in the prior art, mentions
The high compatibility and intelligence of converter system.
Embodiment 4
The control method of the converter system of the compatibility different loads provided in 1 based on the above embodiment, it is excellent in the present invention
Additionally provide a kind of computer equipment in the embodiment 4 of choosing, including memory, processor and storage on a memory and can located
The computer program run on reason device, the processor realize such as above-mentioned method when executing described program.
In the above-described embodiment, a kind of control method of the converter system of compatible different loads is provided, according to negative
The type Switching power conversion circuit of load, to provide its type corresponding electric energy for different types of load, so that the system pair
The compatible power supply of different type load, so that it is incompatible to different types of load to efficiently solve current transformer in the prior art
The problem of, improve the compatibility and intelligence of converter system.
Embodiment 5
The control method of the converter system of the compatibility different loads provided in 1 based on the above embodiment, it is excellent in the present invention
A kind of storage medium comprising computer executable instructions, the computer executable instructions are additionally provided in the embodiment 5 of choosing
When being executed by computer processor for executing such as above-mentioned method.
In the above-described embodiment, a kind of control method of the converter system of compatible different loads is provided, according to negative
The type Switching power conversion circuit of load, to provide its type corresponding electric energy for different types of load, so that the system pair
The compatible power supply of different type load, so that it is incompatible to different types of load to efficiently solve current transformer in the prior art
The problem of, improve the compatibility and intelligence of converter system.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
The common knowledge in the art that person's adaptive change follows general principle of the invention and do not invent including the present invention
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (27)
1. a kind of converter system of compatible different loads characterized by comprising
Power supply, for being load supplying；
Power adapter, between the power supply and the load, including two-way conversion circuit: the first conversion circuit is used for
The power supply is converted into exchange output；With the second conversion circuit, for the power supply to be converted to direct current output；
Switching device is controlled, between the power supply and the power adapter, is switched to and institute for controlling the system
State the corresponding conversion circuit of type of load；Wherein, the type of the load is DC load, and/or, AC load.
2. system according to claim 1, which is characterized in that the power supply is DC power supply, and the DC power supply is at least
Including following one: photovoltaic power generation apparatus, wind power generation plant.
3. system according to claim 1, which is characterized in that the control switching device includes:
Switching circuit, between the power supply and the power adapter, for connecting the power supply and first conversion
Circuit, and/or, the power supply and second conversion circuit；
Controller is connect with the switching circuit, is switched to for by the switching circuit, controlling the system and is born with described
The corresponding conversion circuit of the type of load.
4. system according to claim 3, which is characterized in that the switching circuit includes:
First switch circuit, between the power supply and first conversion circuit, for including that exchange is negative in the load
When load, closure, to be AC load power supply by the power supply；
Second switch circuit, between the power supply and second conversion circuit, for negative including direct current in the load
When load, closure, to be DC load power supply by the power supply.
5. system according to claim 1, which is characterized in that further include: network system；The network system includes:
Power grid, between first conversion circuit and the load, the exchange for receiving first conversion circuit is defeated
Out, or, powering when the load includes AC load for the AC load.
6. system according to claim 5, which is characterized in that the network system further include:
Third switching circuit, between first conversion circuit and the power grid, for the output power in the power supply
Greater than the load consumption power when, closure, the extra electric energy in addition to the load consumption of the power supply is incorporated to
The power grid；
4th switching circuit, between the power grid and the load, for including AC load and described in the load
When the output power of power supply is less than the consumption power of the load, closure, to be AC load power supply by the power grid.
7. system according to claim 5, which is characterized in that further include: energy-storage system；The energy-storage system includes:
Energy storage device, between second conversion circuit and the load, for receiving the straight of second conversion circuit
Stream is exported and is stored, or, powering when the load includes DC load for the DC load.
8. system according to claim 7, which is characterized in that the energy-storage system further include:
5th switching circuit, between second conversion circuit and the energy storage device, for the output in the power supply
When power is greater than the consumption power of the load, closure, by the extra electric energy in addition to the load consumption of the power supply
It is stored；
6th switching circuit, between the energy storage device and the load, for it is described load include DC load and
When the output power of the power supply is less than the consumption power of the load, closure, to pass through the energy storage device as the direct current
Load supplying.
9. system according to claim 7, which is characterized in that further include:
7th switching circuit fills the energy storage for controlling the power grid between the energy storage device and the power grid
It sets and charges.
10. system according to claim 7, which is characterized in that further include:
Output-controlling device, input terminal are connect with the power grid, the energy storage device and the power adapter, output end and institute
State load connection, for the power grid, and/or, the energy storage device, and/or, the electric energy of the power adapter input into
Row is adjusted, for the load supplying.
11. system according to claim 10, which is characterized in that the output-controlling device includes: the control being sequentially connected
Device processed and load access device；Wherein,
The control device is used for the power grid, and/or, the energy storage device, and/or, the power adapter input
Electric energy is adjusted；
Access device is loaded, is supplied to the load for the electric energy after adjusting the control device, for load confession
Electricity.
12. system according to claim 11, which is characterized in that the control device includes:
Voltage regulator module, one end are connect with the input terminal of the control device, and the other end is connect with the load access device,
For adjusting the voltage of the electric energy of the input, to adapt to the voltage of the load.
13. system according to claim 12, which is characterized in that the control device further include:
Monitoring modular is exported, one end is connect with the input terminal of the control device, and the other end is connect with the load access device,
Output parameter for output-controlling device described in real-time monitoring；
Indicating module, one end are connect with the input terminal of the control device, and the other end is connect with the load access device, are used for
Show the working condition of the output-controlling device.
14. system according to claim 13, which is characterized in that further include:
Human-computer interaction device is connect with the output monitoring modular, for receiving the described defeated of the output monitoring module monitors
Parameter and it is shown to user out, and receives the control parameter of user's input.
15. system according to claim 14, which is characterized in that the human-computer interaction device also connects with the controller
It connects, is sent to the controller for determining the type of the load, and by the type of the load.
16. system according to claim 15, which is characterized in that the human-computer interaction interface is by receiving user's input
Load parameter determines the type of the load, or, by the option for the type for providing a user the load, and identify user
The option of selection determines the type of the load.
17. system according to claim 1, which is characterized in that further include:
Filter is filtered between the power supply and the control switching device for the output to the power supply
Processing.
18. a kind of control method of the converter system of compatible different loads is applied to as described in claim any one of 1-17
System characterized by comprising
The type for determining load, determines corresponding power-switching circuit according to the type of the load；Wherein, the class of the load
Type is DC load, and/or, AC load；
Control system switches to the corresponding power-switching circuit of type of the load, to be load confession by the power supply
Electricity.
19. according to the method for claim 18, which is characterized in that determine that the type loaded includes:
The load parameter of user's input is received by human-computer interaction device to determine the type of the load；Or, to the user
The option of the type of the load is provided, and identifies the option of user's selection to determine the type of the load.
20. according to the method for claim 18, which is characterized in that determine that corresponding power supply turns according to the type of the load
Change circuit, comprising:
When the type of the load only includes AC load, determine that corresponding power-switching circuit is the first conversion circuit；
When the type of the load only includes DC load, determine that corresponding power-switching circuit is the second conversion circuit；
When the type of the load includes AC load and DC load, determine that corresponding power-switching circuit is the first conversion
Circuit and the second conversion circuit.
21. according to the method for claim 20, which is characterized in that the type that control system switches to the load is corresponding
Power-switching circuit, comprising:
When the type of the load only includes AC load, first switch closing of circuit is controlled；Wherein, the first switch electricity
Road is between the power supply and first conversion circuit；
When the type of the load only includes DC load, second switch closing of circuit is controlled；Wherein, the second switch electricity
Road is between the power supply and second conversion circuit；It include AC load and DC load in the type of the load
When, control the first switch circuit and the second switch closing of circuit.
22. according to the method for claim 18, which is characterized in that after for the load supplying, further includes:
Detect the output power of the power supply and the consumption power of the load；
When the output power of the power supply is greater than the consumption power of the load, control third switching circuit closure, by institute
The extra electric energy in addition to the load consumption for stating power supply is connected to the grid, and/or, control the 5th switching circuit closure will
The extra power storage in addition to the load consumption of the power supply is to energy storage device；Wherein, third switching circuit position
Between first conversion circuit and the power grid；5th switching circuit is located at second conversion circuit and the storage
Between energy device；
When the output power of the power supply is less than the consumption power of the load, executed according to the type of the load corresponding
Control strategy.
23. according to the method for claim 22, which is characterized in that execute corresponding control plan according to the type of the load
Slightly, comprising:
When the type of the load only includes AC load, control the 4th switching circuit closure, to pass through the power grid as institute
State AC load power supply；Wherein, the 4th switching circuit is between the power grid and the load；
When the type of the load only includes DC load, control the 6th switching circuit closure, to pass through the energy storage device
For DC load power supply；Wherein, the 6th switching circuit is between the energy storage device and the load；
When the type of the load includes AC load and DC load, controls the 4th switching circuit and the described 6th and open
Closing of circuit is closed, to be AC load power supply by the power grid, and, it is negative for the direct current by the energy storage device
Carry power supply.
24. according to the method for claim 23, which is characterized in that execute corresponding control plan according to the type of the load
Slightly, further includes:
DC load is only included in the type of the load, or, the type of the load includes AC load and DC load, and
When the power supply can not charge to the energy storage device, control the 7th switching circuit closure, to pass through the power grid as institute
State energy storage device charging；Wherein, the 7th switching circuit is between the energy storage device and the power grid.
25. a kind of power grid, which is characterized in that the current transformer including the described in any item compatible different loads of such as claim 1-17
System.
26. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the processor is realized as described in any one of claim 18 to 24 when executing described program
Compatibility different loads converter system control method.
27. a kind of storage medium comprising computer executable instructions, the computer executable instructions are by computer disposal
For executing the control of the converter system of the compatibility different loads as described in any one of claim 18 to 24 when device executes
Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811467511.9A CN109546854A (en) | 2018-12-03 | 2018-12-03 | The converter system and its control method, power grid of compatible different loads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811467511.9A CN109546854A (en) | 2018-12-03 | 2018-12-03 | The converter system and its control method, power grid of compatible different loads |
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| CN109546854A true CN109546854A (en) | 2019-03-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112865246A (en) * | 2021-02-03 | 2021-05-28 | 北京国电光宇机电设备有限公司 | Boosting parallel discharging converter for power storage battery |
| CN114928155A (en) * | 2022-06-16 | 2022-08-19 | 江苏莱提电气股份有限公司 | Hybrid dynamic voltage restorer, power grid maintenance equipment and micro-grid system |
-
2018
- 2018-12-03 CN CN201811467511.9A patent/CN109546854A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112865246A (en) * | 2021-02-03 | 2021-05-28 | 北京国电光宇机电设备有限公司 | Boosting parallel discharging converter for power storage battery |
| CN114928155A (en) * | 2022-06-16 | 2022-08-19 | 江苏莱提电气股份有限公司 | Hybrid dynamic voltage restorer, power grid maintenance equipment and micro-grid system |
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