WO2023073681A1 - Dc-dc converter for household appliances - Google Patents
Dc-dc converter for household appliances Download PDFInfo
- Publication number
- WO2023073681A1 WO2023073681A1 PCT/ID2022/000001 ID2022000001W WO2023073681A1 WO 2023073681 A1 WO2023073681 A1 WO 2023073681A1 ID 2022000001 W ID2022000001 W ID 2022000001W WO 2023073681 A1 WO2023073681 A1 WO 2023073681A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- converter
- voltage
- household appliances
- dcconverter
- renewable energy
- Prior art date
Links
- 238000000034 method Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- 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
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Definitions
- Photovoltaic is one of the famous technologies that has been provenon on the market.However, photovoltaic produces direct current (DC) and most of our prevailing systems use alternating current (AC) 220 V. Consequently, before it can be used, for household appliances, the DC source must be converted to AC first. So far, a low DC source from photovoltaic should be converted into high voltage DC, then it is converted again
- the DC-DC converter is used for supplying household appliances and has been upgraded from the prior art entitled "Performance Test of 2.5 kd DC Boost Converter for Nanogrid System Applications” by Jamsep Andreas, Eko Adhi Setiawan et.al and “Hybrid Nanogrids Development to Improve Residential Reliability and Resiliency Supply: Testing and Implementation” by Eko Adhi Setiawan and Novagia Adita.
- the performance of DC-DC converter has been tested in nanogrids dual power, a new concept for nanogrid system, i.e. a system with both AC and DC for supplying the loads. The converter efficiency was stable at 85% at high loads.
- the upgraded version is equipped with LCD, fan and heatsink.
- This invention is about DC-DC converter for supplying nousehold appliances which all the this time is using Alternating Current (AC).
- DC-DC converter is converting voltage from battery storage 48 lA-into varied DC voltage i.e. 120 V dc - 300 V dc which can be used directly for supplying the AC loads.
- This converter consists of power circuit, driver, sensing, power supply, and control circuit. By using this sources can be minimised so it can reduce the cost and increase the power efficiency.
- Figure 1 describes the system using a DC-DC converter for household appliances.
- FIG. 1 describes the parts of DC-DC converter.
- This invention related to the DC-DCconverter which converts DC current from 48 into varied DC voltage i.e. 120 V dc -300 V dc
- the power from this converter is 3000 Watt.
- This converter is used for supplying the household appliances which is described at Figure 1.
- the energy source (1) is DC voltage from renewable energy. It is connected to the charge controller (2) that have the function for charging the battery (3) or to pass the voltage to DC-DCconverter (4) if the battery has been fullv charged. Then, the DC-DCconverter is used for supplying the AC loads / household appliances (5).
- This converter consists of three big parts i.e. the top, centre and bottom. On the top part, there is the main circuit of this converter which is installed at.the FCB (6).
- the cooler fan (8; is used to keep the temperature stability from this converter.
- the centre part consists of cooler fan(8),heatsink (9),input terminal (10) for input voltage 48 V dc from photovoltaic, and output terminal output (11) for output voltage 120 V dc .- 300 V dc -
- inductor (12) is used to save the power, which is connected to the top part using the cable (13).
- the programming algorithm of this converter is described at Figure 3, i.e. hardware and peripheral initialization (S1),variable and constant declaration (S2),data processing for output voltage (S3) which collected from the sensing in the (S7).
- the flowchart in (S7) consists of Analog voltage data reading (SB), Analog to Digital Conversion process (S3) and PID algorithm (Propertional,
- Integral , Derivative to correct the error if there is difference between the desired voltage and the real voltage (S10).
- the result from (S10) is PWM (Pulse Width Modulation) that has been repaired using PID algorithm (S4).
- PWM Pulse Width Modulation
- the PWM level voltage is then converted using gate driver (S5) so it can supply the IGBT at the main circuit (S6).
- the process is run continuosly by collect the data using the voltage sensing circuit (S7).
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The utilization of renewable energy to generate the electricity has been done using a two time conversion process. It reduces the power efficiency and takes a higher cost. DC-DCconverter is used to minimize this conversion process. DC-DCconverter converts the low DC voltage from photovoltaic into varied high DC voltage which can be used to supply the household appliances without converting again into AC voltage.
Description
DC-DC CONVERTER FOR HOUSEHOLD APPLIANCES
Invention Field
This invention is related to the DC-DC converter which converts low DC voltage from renewable energy such as photovoltaic into a varied high DC voltage that can be used for supplying household appliances that so far use AlternatingCurrent Invention Background
Renewable energy technologies have become an important issue because of global warming and fossil resources depletion. Photovoltaic is one of the famous technologies that has been provenon on the market.However, photovoltaic produces direct current (DC) and most of our prevailing systems use alternating current (AC) 220 V. Consequently, before it can be used, for household appliances, the DC source must be converted to AC first. So far,a low DC source from photovoltaic should be converted into high voltage DC, then it is converted again
On the other hand, household appliances started to use SMPS (Switching Mode Power Supply) which can be supplied by DC and AC, Because of that, this invention has been done to reduce the conversion process. So, the low dc voltage (48 V) from battery storage with is connected to solar panels only converted into a varied high do voltage 120-300 V and it can be used tor supplying tne household apoliances without being converted into AC source, it is more efficient and can reduce the cost.
Research about DC-DC Converter has been developed for different utilisation. Cue of the examples is High Frequency DC-DC converter with patent number US7190275B. This patent describes a simple DC-DC converter consisting of a power circuit, analog control circuit and sensing circuit. The converter voltage value is not described in this patent. it only emphasizes the control algorithm so the converter always works in continuous current mode, i.e. the inductor current never turns into zero. The other patent is US007733678B1, describing that the converter consists of a power circuit sensing, control and driver. This converter is used for power factor correction.
Now, in this invention, the DC-DC converter is used for supplying household appliances and has been upgraded from the prior art entitled "Performance Test of 2.5 kd DC Boost Converter for Nanogrid System Applications" by Jamsep Andreas, Eko Adhi Setiawan et.al and "Hybrid Nanogrids Development to Improve Residential Reliability and Resiliency Supply: Testing and Implementation" by Eko Adhi Setiawan and Novagia Adita. In this previous research, the performance of DC-DC converter has been tested in nanogrids dual power, a new concept for nanogrid system, i.e. a system with both AC and DC for supplying the loads. The converter efficiency was stable at 85% at high loads. The upgraded version is equipped with LCD, fan and heatsink.
Invention Short Description
This invention is about DC-DC converter for supplying nousehold appliances which all the this time is using Alternating Current (AC). DC-DC converter is converting voltage from battery storage 48 lA-into varied DC voltage i.e. 120 Vdc - 300 Vdc which can be used directly for supplying the AC loads. This converter consists of power circuit, driver,
sensing, power supply, and control circuit. By using this sources can be minimised so it can reduce the cost and increase the power efficiency.
Image Short Description
Figure 1 describes the system using a DC-DC converter for household appliances.
Figure 2 describes the parts of DC-DC converter.
Figure 3 describes the control algorithm in the DC-
Invention Long Description
This invention related to the DC-DCconverter which converts DC current from 48 into varied DC voltage i.e. 120 Vdc -300 Vdc The power from this converter is 3000 Watt. This converter is used for supplying the household appliances which is described at Figure 1. The energy source (1) is DC voltage from renewable energy. It is connected to the charge controller (2) that have the function for charging the battery (3) or to pass the voltage to DC-DCconverter (4) if the battery has been fullv charged. Then, the DC-DCconverter is used for supplying the AC loads / household appliances (5). This converter consists of three big parts i.e. the top, centre and bottom. On the top part, there is the main circuit of this converter which is installed at.the FCB (6). Also, triers is LCD (7) for displaying the generated voltage and power value. The cooler fan (8; is used to keep the temperature stability from this converter. The centre part consists of cooler fan(8),heatsink (9),input terminal (10) for input voltage 48 Vdc from photovoltaic, and output terminal output (11) for output
voltage 120 Vdc.- 300 Vdc- At the bottom part, there is inductor (12) to save the power, which is connected to the top part using the cable (13). The programming algorithm of this converter is described at Figure 3, i.e. hardware and peripheral initialization (S1),variable and constant declaration (S2),data processing for output voltage (S3) which collected from the sensing in the (S7). The flowchart in (S7) consists of Analog voltage data reading (SB), Analog to Digital Conversion process (S3) and PID algorithm (Propertional,
Integral, Derivative) to correct the error if there is difference between the desired voltage and the real voltage (S10). The result from (S10) is PWM (Pulse Width Modulation) that has been repaired using PID algorithm (S4). The PWM level voltage is then converted using gate driver (S5) so it can supply the IGBT at the main circuit (S6).The process is run continuosly by collect the data using the voltage sensing circuit (S7).
Figure Number Description :
1.DC current source from renewable energy
2. Charger Controller
3.Battery 48 Vdc
4 .DC-DC Converter
5. Alternating Current Loads
6. Main circuit
7. LCD
8. Cooler fan
9. Heatsink
10. Input Terminal
11. Output Terminal
12. Inductor
13. Connector Cable
Claims
1. DC-DCconverter (4) with varied voltage in the range of 120 Vdc until 300 Vdc which used at the system consisting of (Direct Current/DC) source from renewable energy (1), charger controller (2) and battery (3) for supplying alternating current loads/household appliances (5).
2. The control algorithm that consists of (SI) until (S10).
3. The maximum power output capacity is 3000 watt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IDP00202109129 | 2021-10-26 | ||
| IDP00202109129 | 2021-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023073681A1 true WO2023073681A1 (en) | 2023-05-04 |
Family
ID=80623467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ID2022/000001 WO2023073681A1 (en) | 2021-10-26 | 2022-01-03 | Dc-dc converter for household appliances |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2023073681A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8922060B2 (en) * | 2009-06-25 | 2014-12-30 | Panasonic Corporation | Power supply apparatus |
| US20180301905A1 (en) * | 2017-04-17 | 2018-10-18 | Futurewei Technologies, Inc. | Multiple buck stage single boost stage optimizer |
| US20200203985A1 (en) * | 2017-09-15 | 2020-06-25 | Murata Manufacturing Co., Ltd. | Voltage increasing and decreasing device for power storage apparatus and power storage apparatus |
| EP3550693B1 (en) * | 2018-04-05 | 2021-06-30 | LG Electronics Inc. | Power converting apparatus and home appliance including the same |
-
2022
- 2022-01-03 WO PCT/ID2022/000001 patent/WO2023073681A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8922060B2 (en) * | 2009-06-25 | 2014-12-30 | Panasonic Corporation | Power supply apparatus |
| US20180301905A1 (en) * | 2017-04-17 | 2018-10-18 | Futurewei Technologies, Inc. | Multiple buck stage single boost stage optimizer |
| US20200203985A1 (en) * | 2017-09-15 | 2020-06-25 | Murata Manufacturing Co., Ltd. | Voltage increasing and decreasing device for power storage apparatus and power storage apparatus |
| EP3550693B1 (en) * | 2018-04-05 | 2021-06-30 | LG Electronics Inc. | Power converting apparatus and home appliance including the same |
Non-Patent Citations (1)
| Title |
|---|
| ANDREAS JAMSEP ET AL: "Performance Test of 2.5 kW DC Boost Converter for Nanogrid System Applications", INTERNATIONAL JOURNAL OF TECHNOLOGY, vol. 9, no. 6, 7 December 2018 (2018-12-07), pages 1285, XP055936966, ISSN: 2086-9614, DOI: 10.14716/ijtech.v9i6.2429 * |
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