CN108110880A - A kind of multi-channel DC transformation manager control system - Google Patents
A kind of multi-channel DC transformation manager control system Download PDFInfo
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- CN108110880A CN108110880A CN201611045297.9A CN201611045297A CN108110880A CN 108110880 A CN108110880 A CN 108110880A CN 201611045297 A CN201611045297 A CN 201611045297A CN 108110880 A CN108110880 A CN 108110880A
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- accumulator
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Classifications
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Dc-Dc Converters (AREA)
Abstract
A kind of multi-channel DC transformation manager control system belongs to control system technical field more particularly to a kind of multi-channel DC transformation manager control system.The present invention, which provides, a kind of can realize different input sources simultaneously or the multi-channel DC transformation manager control system that powers to the load of timesharing.The present invention includes the voltage V2 of solar energy tabula rasa voltage V1 and accumulator；Switching tube Q1, Q2, Q3 are；Fly-wheel diode VD1, VD2, VD3；Filter inductance L1, L2；Filter capacitor C1, C2；Load R；Converter can be operated in 4 kinds of different patterns：Pattern 1：Q2 is turned off, and Q3 conductings, Q1 is turned on by certain duty cycle.
Description
Technical field
The invention belongs to control system technical field more particularly to a kind of multi-channel DC transformation manager control systems.
Background technology
Each energy form is required to a DC/DC converter in traditional new energy distributed power supply system, by each energy
Quantitative change is output on busbar into direct current and resupplies DC load.This system structure is complicated, and volume is big, of high cost.For upper
Situation is stated, proposes and realize to substitute multiple single input DC converters with a multi-input direct current converter successively in recent years.
MIC allows the defeated people of various energy resources, and property, amplitude and the characteristic of input may be the same or different.Multiple input sources
It can power to the load individually or simultaneously.But existing MIC only realizes the various form energy simultaneously or timesharing is to negative
It carries power supply sun and does not solve the problems, such as that energy flows between the various form energy, for example energy is from solar energy tabula rasa to accumulator
Flowing.
The content of the invention
The present invention addresses the above problem, and providing a kind of can realize different input sources simultaneously or timesharing powers to the load
Multi-channel DC transformation manager control system.
To achieve the above object, the present invention adopts the following technical scheme that, the present invention includes solar energy tabula rasa voltage V1 and storage
The voltage V2 of battery.Switching tube Q1, Q2, Q3 are.Fly-wheel diode VD1, VD2, VD3.Filter inductance L1, L2.Filter capacitor C1,
C2.Load R.
Converter can be operated in 4 kinds of different patterns.
Pattern 1：Q2 is turned off, and Q3 conductings, Q1 is turned on by certain duty cycle.
Pattern 2：Q1 is turned off, and Q2 conductings, Q3 is turned on by certain duty cycle.
Pattern 3：Q2, Q3 are turned off, and Q1 is turned on by certain duty cycle.
Pattern 4：Q2 is turned on, and Q1, Q3 are turned on by certain duty cycle.
When circuit is operated in pattern 4, the output voltage of solar energy tabula rasa is by VD1, the equivalent Buck electricity that L1, C are formed
Consistent with accumulator output voltage after the decompression of road, then again VD3 in parallel with accumulator, the equivalent Buck circuits that L1, C2 are formed drop
Output extremely loads after pressure.
According in conducting situation switch periods different with Q3 Q1, circuit has 4 kinds of operation modes.
Mode 1：QI is turned on, Q2 conductings, Q3 conductings.The voltage on inductance L1 is added in as V1, the voltage being added on inductance L1
V2, inductive current rise.
Mode 2：Q1 is turned off, Q2 conductings, Q3 conductings.The voltage V1 being added on inductance L1, inductive current are begun to decline, and R,
VD1 is formed into a loop afterflow.Voltage on inductance L2 is V2, and inductive current L continues to rise.
Mode 3：QI is turned off, Q2 conductings, Q3 shut-offs.Voltage on L1 is added on inductance as V2, inductive current L1 declines, with
VD2, VD1 are formed into a loop afterflow.Voltage on inductance L is V2, and inductive current L is begun to decline, with R, VD3 forming circuit afterflows.
Mode 4：QI is turned on, Q2 conductings, Q3 shut-offs.The voltage on inductance L1 is added in as V1, inductive current L rises.Inductance L
On voltage for V2, inductive current L continues to decline, with R, VD3 forming circuit afterflows.
As a preferred embodiment, it is of the present invention to solar energy tabula rasa output voltage V1, electric current, accumulator output voltage
Machine, load input voltage machine, electric current are sampled.Wherein, solar energy tabula rasa output power is load rating input power.
Pattern 1：When solar energy input power P disclosure satisfy that load requirement, Q2 shut-offs, Q3 conductings, Q1 is by certain duty cycle
Conducting, is individually powered to the load by solar energy tabula rasa, and energy is flowed to from solar energy tabula rasa and loaded.
Pattern 2：As sampled voltage V1<V2, Q1 turn off, Q2 conducting, Q3 by certain duty cycle conducting, from accumulator individually to
Load supplying, at this moment energy from accumulator flow to load.
As another preferred embodiment, pattern 3 of the present invention：When sample rate current is zero, load is off,
Accumulator is in unsaturated state, and Q2, Q3 are disconnected, and Q1 is turned on by certain duty cycle, are charged from solar energy tabula rasa to accumulator, energy
Amount flows to accumulator from solar energy tabula rasa.
Pattern 4：When solar energy input power P cannot meet load requirement, and sampled voltage V1>V2, Q2 are turned on, Q1, Q3
It turns on by certain duty cycle, is powered to the load simultaneously by solar energy tabula rasa and accumulator, energy is from solar energy tabula rasa and accumulator
Flow direction load.
Advantageous effect of the present invention.
The present invention proposes a kind of new dual input multi-channel straight current converter, can realize different input sources simultaneously or divide
When power to the load, and can realize flowing of the energy between different input sources.The DC converter is to realize solar energy tabula rasa
It can charge a battery and play powering load with accumulator, be asked and be derived from by lose-lose people's Buck converters.
Description of the drawings
In order to which technical problem solved by the invention, technical solution and advantageous effect is more clearly understood, below in conjunction with
The drawings and the specific embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment party described herein
Formula is only used to explain the present invention, is not intended to limit the present invention.
Fig. 1 is present system flow chart.
Specific embodiment
As shown in the figure, the present invention includes the voltage V2 of solar energy tabula rasa voltage V1 and accumulator.Switching tube Q1, Q2, Q3 are.
Fly-wheel diode VD1, VD2, VD3.Filter inductance L1, L2.Filter capacitor C1, C2.Load R.
Converter can be operated in 4 kinds of different patterns：
Pattern 1：Q2 is turned off, and Q3 conductings, Q1 is turned on by certain duty cycle.
Pattern 2：Q1 is turned off, and Q2 conductings, Q3 is turned on by certain duty cycle.
Pattern 3：Q2, Q3 are turned off, and Q1 is turned on by certain duty cycle.
Pattern 4：Q2 is turned on, and Q1, Q3 are turned on by certain duty cycle.
When circuit is operated in pattern 4, the output voltage of solar energy tabula rasa is by VD1, the equivalent Buck electricity that L1, C are formed
Consistent with accumulator output voltage after the decompression of road, then again VD3 in parallel with accumulator, the equivalent Buck circuits that L1, C2 are formed drop
Output extremely loads after pressure.
According in conducting situation switch periods different with Q3 Q1, circuit has 4 kinds of operation modes.
Mode 1：QI is turned on, Q2 conductings, Q3 conductings.The voltage on inductance L1 is added in as V1, the voltage being added on inductance L1
V2, inductive current rise.
Mode 2：Q1 is turned off, Q2 conductings, Q3 conductings.The voltage V1 being added on inductance L1, inductive current are begun to decline, and R,
VD1 is formed into a loop afterflow.Voltage on inductance L2 is V2, and inductive current L continues to rise.
Mode 3：QI is turned off, Q2 conductings, Q3 shut-offs.Voltage on L1 is added on inductance as V2, inductive current L1 declines, with
VD2, VD1 are formed into a loop afterflow.Voltage on inductance L is V2, and inductive current L is begun to decline, with R, VD3 forming circuit afterflows.
Mode 4：QI is turned on, Q2 conductings, Q3 shut-offs.The voltage on inductance L1 is added in as V1, inductive current L rises.Inductance L
On voltage for V2, inductive current L continues to decline, with R, VD3 forming circuit afterflows.
It is described to solar energy tabula rasa output voltage V1, electric current, accumulator output voltage machine, load input voltage machine, electric current
It is sampled.Wherein, solar energy tabula rasa output power is load rating input power.
Pattern 1：When solar energy input power P disclosure satisfy that load requirement, Q2 shut-offs, Q3 conductings, Q1 is by certain duty cycle
Conducting, is individually powered to the load by solar energy tabula rasa, and energy is flowed to from solar energy tabula rasa and loaded.
Pattern 2：As sampled voltage V1<V2, Q1 turn off, Q2 conducting, Q3 by certain duty cycle conducting, from accumulator individually to
Load supplying, at this moment energy from accumulator flow to load.
The pattern 3：When sample rate current is zero, load is off, and accumulator is in unsaturated state, Q2,
Q3 is disconnected, and Q1 is turned on by certain duty cycle, is charged from solar energy tabula rasa to accumulator, and energy flows to electric power storage from solar energy tabula rasa
Pond.
Pattern 4：When solar energy input power P cannot meet load requirement, and sampled voltage V1>V2, Q2 are turned on, Q1, Q3
It turns on by certain duty cycle, is powered to the load simultaneously by solar energy tabula rasa and accumulator, energy is from solar energy tabula rasa and accumulator
Flow direction load.
It is each in the MIC by the series connection generation of multiple type pulse voltage source units according to the composition rule of multi-input direct current converter
Input source can simultaneously or timesharing power to the load.By each input source in the MIC of multiple type pulse voltage source units generation in parallel only
Can timesharing power to the load flowing of the energy to be realized between input source, just must be in parallel by input source.Meanwhile it how defeated to realize
Enter source to power to the load simultaneously, it is desirable to which multiple input sources voltage must be consistent.
In order to verify the operation principle of the dual input multi-channel circuit of proposition, 4 kinds of patterns are carried out respectively with Saber softwares
Emulation.Since preceding 3 kinds of patterns are all basic Buck circuits, the 4th kind of pattern, i.e. solar energy tabula rasa and accumulator are only provided here
The simulation waveform that powers to the load simultaneously, when emulation, take D1=0.5, D2=0.5.Simulation result is consistent with theory analysis before.
The load input voltage people determine that the accumulator output voltage people and solar energy tabula rasa are defeated by accumulator output voltage and with duty cycle D2
It, can be according to loading demand and accumulator and solar energy tabula rasa when going out voltage V1 and having codetermined duty cycle D10 practical applications
Parameter selectes duty cycle.
The above content is combine specific preferred embodiment to the further description of the invention made, it is impossible to assert this
The specific implementation of invention is confined to these explanations, for those of ordinary skill in the art to which the present invention belongs, not
On the premise of departing from present inventive concept, several simple deduction or replace can also be made, the present invention should be all considered as belonging to and be carried
The protection domain that claims of friendship determine.
Claims (3)
1. a kind of multi-channel DC transformation manager control system, the voltage V2 including solar energy tabula rasa voltage V1 and accumulator；It opens
Closing pipe Q1, Q2, Q3 is；Fly-wheel diode VD1, VD2, VD3；Filter inductance L1, L2；Filter capacitor C1, C2；Load R；
It is characterized in that, converter is operated in 4 kinds of different patterns：
Pattern 1：Q2 is turned off, and Q3 conductings, Q1 is turned on by certain duty cycle；
Pattern 2：Q1 is turned off, and Q2 conductings, Q3 is turned on by certain duty cycle；
Pattern 3：Q2, Q3 are turned off, and Q1 is turned on by certain duty cycle；
Pattern 4：Q2 is turned on, and Q1, Q3 are turned on by certain duty cycle；
When circuit is operated in pattern 4, the output voltage of solar energy tabula rasa is by VD1, the equivalent Buck circuits drop that L1, C are formed
It is consistent with accumulator output voltage after pressure, then again VD3 in parallel with accumulator, after the equivalent Buck circuits decompression that L1, C2 are formed
Output extremely loads；
According in conducting situation switch periods different with Q3 Q1, circuit has 4 kinds of operation modes；
Mode 1：QI is turned on, Q2 conductings, Q3 conductings；The voltage on inductance L1 is added in as V1, the voltage V2 being added on inductance L1, electricity
Inducing current rises；
Mode 2：Q1 is turned off, Q2 conductings, Q3 conductings；The voltage V1 being added on inductance L1, inductive current are begun to decline, with R, VD1
It is formed into a loop afterflow；Voltage on inductance L2 is V2, and inductive current L continues to rise；
Mode 3：QI is turned off, Q2 conductings, Q3 shut-offs；Voltage on L1 is added on inductance as V2, inductive current L1 declines, with VD2,
VD1 is formed into a loop afterflow；Voltage on inductance L is V2, and inductive current L is begun to decline, with R, VD3 forming circuit afterflows；
Mode 4：QI is turned on, Q2 conductings, Q3 shut-offs；The voltage on inductance L1 is added in as V1, inductive current L rises；On inductance L
Voltage is V2, and inductive current L continues to decline, with R, VD3 forming circuit afterflows.
2. a kind of multi-channel DC transformation manager control system according to claim 1, it is characterised in that described to solar energy
Tabula rasa output voltage V1, electric current, accumulator output voltage machine, load input voltage machine, electric current are sampled；Wherein, solar energy
Tabula rasa output power is load rating input power；
Pattern 1：When solar energy input power P disclosure satisfy that load requirement, Q2 shut-offs, Q3 is turned on, and Q1 is turned on by certain duty cycle,
It is individually powered to the load by solar energy tabula rasa, energy is flowed to from solar energy tabula rasa and loaded；
Pattern 2：As sampled voltage V1<V2, Q1 are turned off, and Q2 conductings, Q3 is turned on by certain duty cycle, from accumulator individually to load
It powers, at this moment energy is flowed to from accumulator and loaded.
A kind of 3. multi-channel DC transformation manager control system according to claim 1, it is characterised in that the pattern 3：When
When sample rate current is zero, load is off, and accumulator is in unsaturated state, and Q2, Q3 are disconnected, and Q1 presses certain duty cycle
Conducting, is charged from solar energy tabula rasa to accumulator, and energy flows to accumulator from solar energy tabula rasa；
Pattern 4：When solar energy input power P cannot meet load requirement, and sampled voltage V1>V2, Q2 are turned on, and Q1, Q3 press one
Determine duty cycle conducting, powered to the load simultaneously by solar energy tabula rasa and accumulator, energy is flowed to from solar energy tabula rasa and accumulator
Load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045297.9A CN108110880A (en) | 2016-11-24 | 2016-11-24 | A kind of multi-channel DC transformation manager control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045297.9A CN108110880A (en) | 2016-11-24 | 2016-11-24 | A kind of multi-channel DC transformation manager control system |
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| CN108110880A true CN108110880A (en) | 2018-06-01 |
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| CN201611045297.9A Pending CN108110880A (en) | 2016-11-24 | 2016-11-24 | A kind of multi-channel DC transformation manager control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108923410A (en) * | 2018-08-30 | 2018-11-30 | 华南理工大学 | Controller and control method and a kind of energy-trap chip for collection of energy |
-
2016
- 2016-11-24 CN CN201611045297.9A patent/CN108110880A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108923410A (en) * | 2018-08-30 | 2018-11-30 | 华南理工大学 | Controller and control method and a kind of energy-trap chip for collection of energy |
| CN108923410B (en) * | 2018-08-30 | 2019-06-18 | 华南理工大学 | Controller and control method and a kind of energy-trap chip for collection of energy |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180601 |
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| WD01 | Invention patent application deemed withdrawn after publication |