CN111614076A - Power supply system for three-phase four-wire system - Google Patents
Power supply system for three-phase four-wire system Download PDFInfo
- Publication number
- CN111614076A CN111614076A CN201910132640.0A CN201910132640A CN111614076A CN 111614076 A CN111614076 A CN 111614076A CN 201910132640 A CN201910132640 A CN 201910132640A CN 111614076 A CN111614076 A CN 111614076A
- Authority
- CN
- China
- Prior art keywords
- terminal
- group
- energy storage
- circuit breaker
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
-
- 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
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a power supply system for three-phase four-wire system, comprising: the mode switcher comprises a power grid side terminal, a load side terminal, an energy storage interface and a selection module, wherein the selection module has four working modes; the first circuit breaker is provided with an incoming terminal connected with a power supply grid and an outgoing terminal connected with a grid side terminal of the mode switcher; a distribution box connected with a load side terminal of the mode switcher; the input terminal of the second circuit breaker is connected with the energy storage interface of the mode switcher; and the energy storage device is connected with the outlet terminal of the second circuit breaker. The present invention includes a mode switcher having a plurality of operating modes capable of selectively supplying power to a load through a power supply grid and an energy storage device. When the power supply grid is powered off, all the electric equipment distributed in different phases can be powered through the energy storage device, and when the power supply grid is restored to supply power, the energy storage device can be charged. The invention has the advantages of high reliability, good operability, high safety and wide application area.
Description
Technical Field
The invention relates to the field of power supply of a power grid, in particular to a power supply system for a three-phase four-wire system.
Background
The three-phase four-wire system incoming line mode has wide application in household power supply and is used for supplying power to the electric equipment of the whole house. In order to reduce the three-phase unbalanced current injected into the grid by the consumer load, the total equipment is typically distributed equally over three different phase lines. In order to increase the reliability of the electricity consumption of the user, a household energy storage device is generally configured to supply power when the power grid fails. The household energy storage device is usually output in a single phase, and can only meet the power demand of one phase, and the rest two-phase power utilization equipment cannot be normally used. If the line is temporarily changed when the power grid is powered off, the output of the energy storage device is connected to different three phases, although the purpose can be achieved, the energy storage device is unsafe and inconvenient; if the energy storage device with three-phase output is configured, the capacity of the energy storage device with three-phase output is large, which is uneconomical and inefficient for users.
Accordingly, the present invention provides a power supply system for a three-phase four-wire system.
Disclosure of Invention
To solve the above problems, the present invention provides a power supply system for a three-phase four-wire system, the system comprising:
the mode switcher comprises a grid side terminal, a load side terminal, an energy storage interface and a selection module, wherein the selection module has four working modes;
a first circuit breaker, wherein an inlet terminal of the first circuit breaker is connected with a power supply grid, and an outlet terminal of the first circuit breaker is connected with a grid side terminal of the mode switcher;
a distribution box connected to a load side terminal of the mode switcher;
the inlet terminal of the second circuit breaker is connected with the energy storage interface of the mode switcher;
and the energy storage device is connected with the outlet terminal of the second circuit breaker.
According to one embodiment of the invention, the grid-side terminal comprises a c1 terminal, a c2 terminal, and a c3 terminal, the load-side terminal comprises a c5 terminal, a c6 terminal, and a c7 terminal, and the energy storage interface comprises a c4 terminal.
According to an embodiment of the present invention, the first circuit breaker is provided with an undervoltage trip function, and the first circuit breaker includes an e1 line terminal, an e2 line terminal, an e3 line terminal, and an e4 line terminal, which are respectively connected to a phase a, a phase B, a phase C, and a phase N of the power supply grid.
According to an embodiment of the present invention, the first circuit breaker includes an f1 outlet terminal, an f2 outlet terminal, and an f3 outlet terminal, which are respectively connected to the c1 terminal, the c2 terminal, and the c3 terminal.
According to one embodiment of the present invention, the electric box includes L1, L2, and L3 fire terminals connected to the c5, c6, and c7 terminals, respectively.
According to one embodiment of the present invention, the second circuit breaker includes a g1 line terminal connected with the c4 terminal.
According to an embodiment of the present invention, the selection module includes a first group of fixed contacts, a second group of fixed contacts, a third group of fixed contacts, a fourth group of fixed contacts, a first group of operating handle, and a second group of operating handle, where the first group of fixed contacts includes an 1 fixed contact, an a3 fixed contact, and an a5 fixed contact, the second group of fixed contacts includes an a2 fixed contact, an a4 fixed contact, and an a6 fixed contact, the third group of fixed contacts includes a b1 fixed contact, a b3 fixed contact, and a b5 fixed contact, and the fourth group of fixed contacts includes a b2 fixed contact, a b4 fixed contact, and a b6 fixed.
According to an embodiment of the present invention, the first group of fixed contacts is connected to the c4 terminal, the a2 fixed contact is connected to the c1 terminal and the b1 fixed contact, the a4 fixed contact is connected to the c2 terminal, the a6 fixed contact is connected to the c3 terminal, the b2 fixed contact is connected to the c5 terminal, the b4 fixed contact is connected to the c6 terminal, and the b6 terminal is connected to the c7 terminal.
According to one embodiment of the invention, the selection module comprises a grid supply mode, an energy storage charging mode, and a stop mode, wherein,
when the first group of operating handles are communicated with the second group of fixed contacts and the second group of operating handles are communicated with the fourth group of fixed contacts, the selection module is in the power supply mode of the power grid;
when the first group of operating handles are communicated with the first group of fixed contacts and the second group of operating handles are communicated with the fourth group of fixed contacts, the selecting module is in the energy storage and power supply mode;
when the first group of operating handles are communicated with the first group of fixed contacts and the second group of operating handles are communicated with the third group of fixed contacts, the selecting module is in the energy storage charging mode;
when the first group of operating handles is communicated with the second group of fixed contacts and the second group of operating handles is communicated with the third group of fixed contacts, the selection module is in the stop mode.
According to one embodiment of the invention, the first circuit breaker comprises an f4 outlet terminal, the second circuit breaker comprises a g2 inlet terminal, and the distribution box comprises an N1 neutral terminal, wherein the f4 outlet terminal is connected with the g2 inlet terminal and the N1 neutral terminal.
The power supply system for the three-phase four-wire system comprises a mode switcher, wherein the mode switcher is provided with a plurality of working modes, can select to supply power to a load through a power supply grid and an energy storage device, can charge the energy storage device and can enter a stop mode when power supply needs to be stopped. The invention can realize the power supply of all the electric equipment distributed in different phases through the energy storage device when the power supply grid has power failure, and can conveniently charge the energy storage device when the power supply grid recovers the power supply. The power supply system provided by the invention has the advantages of high reliability, good operability, high safety and wide application area.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 shows a block diagram of a power supply system for a three-phase four-wire system according to an embodiment of the present invention;
FIG. 2 shows a wiring schematic for a three-phase four-wire system power supply system according to one embodiment of the invention; and
fig. 3 shows a schematic wiring diagram of a selection module in a power supply system for three-phase four-wire system according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Fig. 1 shows a block diagram of a power supply system for a three-phase four-wire system according to an embodiment of the present invention. The power supply system shown in fig. 1 includes a mode switcher 101, a first circuit breaker 102, a distribution box 103, a second circuit breaker 104, and an energy storage device 105.
The mode switcher 101 includes a grid-side terminal, a load-side terminal, an energy storage interface, and a selection module, wherein the selection module has four operating modes. Preferably, the grid-side terminal includes a c1 terminal, a c2 terminal, and a c3 terminal, the load-side terminal includes a c5 terminal, a c6 terminal, and a c7 terminal, and the energy storage interface includes a c4 terminal.
The first circuit breaker 102 has an inlet terminal connected to the power grid and an outlet terminal connected to the grid-side terminal of the mode switcher 101. Preferably, the first circuit breaker has an undervoltage trip function, and the first circuit breaker includes an e1 line terminal, an e2 line terminal, an e3 line terminal, and an e4 line terminal, and is connected to a phase a, a phase B, a phase C, and a phase N of the power supply grid, respectively.
The first circuit breaker includes an f1 outlet terminal, an f2 outlet terminal, and an f3 outlet terminal, and is connected to a c1 terminal, a c2 terminal, and a c3 terminal, respectively.
The distribution box 103 is connected to a load side terminal of the mode switcher 101. Preferably, the distribution box includes L1, L2 and L3 fire terminals connected to c5, c6 and c7 terminals, respectively.
The inlet terminal of the second circuit breaker 104 is connected to the energy storage interface of the mode switcher 101. Preferably, the second circuit breaker comprises a g1 line terminal, which is connected with the c4 terminal.
The energy storage device 105 is connected to the outlet terminal of the second circuit breaker 104.
Preferably, the selection module includes a first group of fixed contacts, a second group of fixed contacts, a third group of fixed contacts, a fourth group of fixed contacts, a first group of operating handle, and a second group of operating handle, where the first group of fixed contacts includes a1 fixed contact, a3 fixed contact, and a5 fixed contact, the second group of fixed contacts includes a2 fixed contact, a4 fixed contact, and a6 fixed contact, the third group of fixed contacts includes b1 fixed contact, b3 fixed contact, and b5 fixed contact, and the fourth group of fixed contacts includes b2 fixed contact, b4 fixed contact, and b6 fixed contact.
Specifically, the first group of fixed contacts is connected with a c4 terminal, the a2 fixed contact is connected with a c1 terminal and a b1 fixed contact, the a4 fixed contact is connected with a c2 terminal, the a6 fixed contact is connected with a c3 terminal, the b2 fixed contact is connected with a c5 terminal, the b4 fixed contact is linked with a c6 terminal, and the b6 terminal is connected with a c7 terminal.
In addition, the selection module comprises a power supply mode of the power grid, an energy storage power supply mode, an energy storage charging mode and a stop mode, wherein,
when the first group of operating handles are communicated with the second group of static contacts and the second group of operating handles are communicated with the fourth group of static contacts, the selection module is in a power supply mode of a power grid;
when the first group of operating handles are communicated with the first group of fixed contacts and the second group of operating handles are communicated with the fourth group of fixed contacts, the selection module is in an energy storage and power supply mode;
when the first group of operating handles are communicated with the first group of static contacts and the second group of operating handles are communicated with the third group of static contacts, the selection module is in an energy storage charging mode;
when the first group of operating handles is communicated with the second group of static contacts and the second group of operating handles is communicated with the third group of static contacts, the selection module is in a stop mode.
Preferably, the first circuit breaker includes an f4 outlet terminal, the second circuit breaker includes a g2 inlet terminal, and the switchbox includes an N1 neutral terminal, wherein the f4 outlet terminal is connected to the g2 inlet terminal and the N1 neutral terminal.
Fig. 2 shows a wiring schematic of a power supply system for a three-phase four-wire system according to an embodiment of the invention.
Generally, the existing self-built ocean houses and villas in rural areas usually adopt three-phase four-wire system lines to supply power for electric equipment of the whole house. In order to reduce the three-phase unbalanced current injected into the power supply grid by the consumer load, the total installation is usually distributed equally over three different phase lines. In order to increase the reliability of the power consumption of the user, a household energy storage device is usually configured to supply power when the power supply grid fails. The household energy storage device is usually output in a single phase, and can only meet the power demand of one phase, and other two-phase power utilization equipment cannot be normally used. If the line is temporarily changed when the power grid is powered off, the output of the household energy storage device is connected to different three phases, although the purpose can be achieved, the household energy storage device is unsafe and inconvenient; if the household energy storage device with three-phase output is configured, the capacity of the household energy storage device with three-phase output is large and uneconomical.
Therefore, fig. 2 provides a household power supply system, which is suitable for users with three-phase four-wire incoming lines, and includes a household energy storage device which can only output single-phase electricity, and a mode switching device, so that when the power grid fails, all the electric devices distributed in different phases can be powered through one set of single-phase output household energy storage device, and when the power grid recovers power supply, the household energy storage device can be conveniently charged, and the household power supply system is simple to operate and practical in function.
As shown in fig. 2, the power supply system includes a mode switching device 201, a three-phase circuit breaker 202, a user distribution box 203, a single-phase circuit breaker 204, and a user energy storage device 205.
The three-phase circuit breaker 202 is a 4-pole circuit breaker and has an undervoltage tripping function, and the incoming line terminals e1, e2, e3 and e4 are connected to the a-phase, B-phase, C-phase and N-phase lines of the power supply grid, respectively. The mode switching device 201 has 7 external line terminals c1, c2, c3, c4, c5, c6, and c7 in total, and the grid side terminals c1, c2, and c3 are connected to the line terminals f1, f2, and f3 of the three-phase circuit breaker 202, respectively.
The live terminals L1, L2, and L3 of the user distribution box 203 are connected to the load side terminals c5, c6, and c7 of the mode switching device 201, respectively, and the neutral terminal N1 is connected to the outlet terminal f4 of the three-phase circuit breaker 202. An inlet terminal g1 of the single-phase circuit breaker 204 is connected with an energy storage interface c4 of the mode switching device 201, an inlet terminal g2 of the single-phase circuit breaker 204 is connected with an outlet terminal f4 of the three-phase circuit breaker 201, and outlet terminals g3 and g4 of the single-phase circuit breaker 104 are respectively connected with an output live wire terminal L and a zero line terminal N2 of the household energy storage device 205.
Fig. 3 shows a schematic wiring diagram of a selection module in a power supply system for three-phase four-wire system according to an embodiment of the invention.
The interior of the selection module 301 is shown in fig. 3, and includes 12 fixed contacts a1, a2, a3, a4, a5, a6, b1, b2, b3, b4, b5, and b6, where all 12 fixed contacts are divided into four groups: (a1, a3, a5) is the first group, (a2, a4, a6) is the second group, (b1, b3, b5) is the third group, and (b2, b4, b6) is the fourth group. The selection module 301 further comprises two groups of operation handles d1 and d2, wherein the operation handle d1 controls the moving contact at the upper part, the operation handle d2 controls the moving contact at the lower part, the two groups of moving contacts are respectively and correspondingly connected in sequence from left to right, and the common connection point of the two groups of moving contacts is fixed.
Preferably, the movable contacts are mechanically interlocked, the upper movable contact can only be located at the position of the fixed contact (a1, a3, a5) or the position of the fixed contact (a2, a4, a6), and the lower movable contact can only be located at the position of the fixed contact (b1, b3, b5) or the position of the fixed contact (b2, b4, b 6).
As shown in fig. 3, the grid-side terminals c1, c2, and c3 are respectively connected to the static contacts a2, a4, and a6, the static contacts a1, a3, and a5 are connected together and then connected to the energy storage interface c4, the static contacts a2 and b1, and the static contacts b2, b4, and b6 are respectively connected to the load-side terminals c5, c6, and c 7.
In practical applications, after the three-phase circuit breaker 202 and the single-phase circuit breaker 204 are both closed, the power supply system starts to operate, and a user can select different operation modes to operate through the operation handle d1 and the operation handle d2 of the mode switching device 201, where the operation modes include a grid power supply mode, an energy storage charging mode, and a stop mode.
Wherein, the power grid supply mode: the movable contact at the upper part of the mode switching device 202 is controlled to be at the position of the fixed contact (a2, a4 and a6) by operating the handle d1, and then the movable contact at the lower part of the mode switching device 201 is controlled to be at the position of the fixed contact (b2, b4 and b6) by operating the handle d2, at this time, the user distribution box 203 is supplied with power by the power supply grid three-phase four-wire power supply.
And (3) energy storage and power supply mode: once the power grid has a power failure, the undervoltage tripping function of the three-phase circuit breaker 202 automatically disconnects the three-phase circuit breaker, and at the moment, the user can select the energy storage power supply mode to continue to supply power to the load. The movable contact at the upper part of the mode switching device 201 is controlled by the operating handle d1 to be at the position of the fixed contact (a1, a3 and a5), and then the movable contact at the lower part of the mode switching device 201 is controlled by the operating handle d2 to be at the position of the fixed contact (b2, b4 and b6), at this time, three live wire terminals L1, L2 and L3 of the user distribution box 203 are all powered by the household energy storage device 205 by a single phase.
And (3) an energy storage charging mode: on the premise that the power supply grid normally supplies power, if the electric quantity of the energy storage device 205 for the user is insufficient, the user can select the energy storage charging mode to charge the energy storage device 205 for the user. The movable contact at the upper part of the mode switching device 201 is controlled by the operating handle d1 to be at the position of the static contact (a1, a3 and a5), and then the movable contact at the lower part of the mode switching device 201 is controlled by the operating handle d2 to be at the position of the static contact (b1, b3 and b5), at this time, the user energy storage device 205 is connected with one of the power supply grids and detects that the grid voltage is normal, and the user energy storage device 205 automatically enters the charging mode until the charging mode is full.
A stop mode: if the user needs to overhaul the distribution line, the user can make the energy storage device 205, the user distribution box 203 and the power supply grid be disconnected after selecting the stop mode, and safety is guaranteed. The movable contact at the upper part of the mode switching device 201 is controlled by the operating handle d1 to be at the position of the static contact (a2, a4 and a6), and then the movable contact at the lower part of the mode switching device 201 is controlled by the operating handle d2 to be at the position of the static contact (b1, b3 and b5), at the moment, the household energy storage device 205, the user distribution box 203 and the power supply grid are kept in a disconnected state.
In summary, the power supply system for three-phase four-wire system provided by the present invention includes a mode switcher having a plurality of operation modes, capable of selecting to supply power to a load through a power supply grid and an energy storage device, and also capable of charging the energy storage device and entering a stop mode when power supply needs to be stopped. The invention can realize the power supply of all the electric equipment distributed in different phases through the energy storage device when the power supply grid has power failure, and can conveniently charge the energy storage device when the power supply grid recovers the power supply. The power supply system provided by the invention has the advantages of high reliability, good operability, high safety and wide application area.
It is to be understood that the disclosed embodiments of the invention are not limited to the particular structures, process steps, or materials disclosed herein but are extended to equivalents thereof as would be understood by those ordinarily skilled in the relevant arts. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting.
Reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Thus, the appearances of the phrase "one embodiment" or "an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A power supply system for a three-phase four-wire system, the system comprising:
the mode switcher comprises a grid side terminal, a load side terminal, an energy storage interface and a selection module, wherein the selection module has four working modes;
a first circuit breaker, wherein an inlet terminal of the first circuit breaker is connected with a power supply grid, and an outlet terminal of the first circuit breaker is connected with a grid side terminal of the mode switcher;
a distribution box connected to a load side terminal of the mode switcher;
the inlet terminal of the second circuit breaker is connected with the energy storage interface of the mode switcher;
and the energy storage device is connected with the outlet terminal of the second circuit breaker.
2. The system of claim 1, wherein the grid-side terminal comprises a c1 terminal, a c2 terminal, and a c3 terminal, the load-side terminal comprises a c5 terminal, a c6 terminal, and a c7 terminal, and the energy storage interface comprises a c4 terminal.
3. The system of any one of claims 1-2, wherein the first circuit breaker is configured for undervoltage trip functionality, the first circuit breaker including an e1 line terminal, an e2 line terminal, an e3 line terminal, and an e4 line terminal, respectively connected to phase a, phase B, phase C, and phase N of the power grid.
4. The system of claim 2, wherein the first circuit breaker includes an f1 outlet terminal, an f2 outlet terminal, and an f3 outlet terminal connected to the c1 terminal, the c2 terminal, and the c3 terminal, respectively.
5. The system of claim 2, wherein said electrical box comprises an L1 fire wire terminal, an L2 fire wire terminal, and an L3 fire wire terminal connected to said c5 terminal, said c6 terminal, and said c7 terminal, respectively.
6. The system of claim 2, wherein the second circuit breaker includes a g1 line terminal connected to the c4 terminal.
7. The system of claim 2, wherein the selection module comprises a first set of stationary contacts, a second set of stationary contacts, a third set of stationary contacts, a fourth set of stationary contacts, a first set of operating handle, and a second set of operating handle, wherein the first set of stationary contacts comprises a1 stationary contact, a3 stationary contact, and a5 stationary contact, the second set of stationary contacts comprises a2 stationary contact, a4 stationary contact, and a6 stationary contact, the third set of stationary contacts comprises b1 stationary contact, b3 stationary contact, and b5 stationary contact, and the fourth set of stationary contacts comprises b2 stationary contact, b4 stationary contact, and b6 stationary contact.
8. The system of claim 7, wherein the first set of fixed contacts is connected to the c4 terminal, the a2 fixed contact is connected to the c1 terminal and the b1 fixed contact, the a4 fixed contact is connected to the c2 terminal, the a6 fixed contact is connected to the c3 terminal, the b2 fixed contact is connected to the c5 terminal, the b4 fixed contact is connected to the c6 terminal, and the b6 terminal is connected to the c7 terminal.
9. The system according to any of claims 7-8, wherein the selection module comprises a grid supply mode, an energy storage charging mode, and a stop mode, wherein,
when the first group of operating handles are communicated with the second group of fixed contacts and the second group of operating handles are communicated with the fourth group of fixed contacts, the selection module is in the power supply mode of the power grid;
when the first group of operating handles are communicated with the first group of fixed contacts and the second group of operating handles are communicated with the fourth group of fixed contacts, the selecting module is in the energy storage and power supply mode;
when the first group of operating handles are communicated with the first group of fixed contacts and the second group of operating handles are communicated with the third group of fixed contacts, the selecting module is in the energy storage charging mode;
when the first group of operating handles is communicated with the second group of fixed contacts and the second group of operating handles is communicated with the third group of fixed contacts, the selection module is in the stop mode.
10. The system of any of claims 1-9, wherein the first circuit breaker includes an f4 outlet terminal, the second circuit breaker includes a g2 inlet terminal, and the switchbox includes an N1 neutral terminal, wherein the f4 outlet terminal is connected to the g2 inlet terminal and the N1 neutral terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910132640.0A CN111614076B (en) | 2019-02-22 | 2019-02-22 | Power supply system for three-phase four-wire system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910132640.0A CN111614076B (en) | 2019-02-22 | 2019-02-22 | Power supply system for three-phase four-wire system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111614076A true CN111614076A (en) | 2020-09-01 |
| CN111614076B CN111614076B (en) | 2023-05-12 |
Family
ID=72202918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910132640.0A Active CN111614076B (en) | 2019-02-22 | 2019-02-22 | Power supply system for three-phase four-wire system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111614076B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000224862A (en) * | 1999-01-29 | 2000-08-11 | Fuji Electric Co Ltd | Power conversion apparatus |
| CN105244884A (en) * | 2015-11-02 | 2016-01-13 | 贵州大学 | Flexible-access intelligent household interface |
| CN206349764U (en) * | 2016-12-15 | 2017-07-21 | 上海煦达新能源科技有限公司 | The single-phase off-network automatic switching control equipment of photovoltaic three-phase grid |
| CN107082052A (en) * | 2017-04-11 | 2017-08-22 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle auxiliary electricity system power switching method, device and system |
| US20190052097A1 (en) * | 2017-08-14 | 2019-02-14 | Young Cheol SHIN | Grid-connected inverter system having seamless switching |
-
2019
- 2019-02-22 CN CN201910132640.0A patent/CN111614076B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000224862A (en) * | 1999-01-29 | 2000-08-11 | Fuji Electric Co Ltd | Power conversion apparatus |
| CN105244884A (en) * | 2015-11-02 | 2016-01-13 | 贵州大学 | Flexible-access intelligent household interface |
| CN206349764U (en) * | 2016-12-15 | 2017-07-21 | 上海煦达新能源科技有限公司 | The single-phase off-network automatic switching control equipment of photovoltaic three-phase grid |
| CN107082052A (en) * | 2017-04-11 | 2017-08-22 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle auxiliary electricity system power switching method, device and system |
| US20190052097A1 (en) * | 2017-08-14 | 2019-02-14 | Young Cheol SHIN | Grid-connected inverter system having seamless switching |
Non-Patent Citations (1)
| Title |
|---|
| 张立勋: "《机械电子学 第2版》", 31 March 2005 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111614076B (en) | 2023-05-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11316471B2 (en) | Manual transfer switch for onsite energy generation and storage systems | |
| CN201374571Y (en) | Online UPS | |
| CN101728945B (en) | Bi-directional direct-current/direct-current voltage conversion device with neutral point | |
| CN211089218U (en) | High-capacity high-reliability rapid power supply switching device | |
| CN209608349U (en) | A kind of novel micro-capacitance sensor control device | |
| CN111614076B (en) | Power supply system for three-phase four-wire system | |
| CN218783454U (en) | Box transformer substation of high reliability power supply | |
| Fardanesh et al. | Dynamic studies of the NYS transmission system with the Marcy CSC in the UPFC and IPFC configurations | |
| CN110783915A (en) | Multi-distribution-platform-area power supply method and power supply system | |
| US20230406126A1 (en) | Multiport Energy Routing Systems | |
| CN213151713U (en) | Multi-power-supply emergency quick access box system | |
| CN112367566B (en) | Communication base station high-reliability low-loss alternating current power supply method and device | |
| CN211579608U (en) | Low-voltage phase-change switch | |
| CN211790762U (en) | Power distribution system | |
| CN2919314Y (en) | Electrical manostat with function of outputting from three single-phases respectively | |
| CN112366527A (en) | Miniaturized module integrated 400V low-voltage switch cabinet | |
| CN206789962U (en) | A kind of integrated loaded capacity regulating voltage regulating power distribution station | |
| CN205453109U (en) | Two line user phasing switch devices of low pressure | |
| CN216252183U (en) | Three-switch control system of micro-grid | |
| JP3896297B2 (en) | Transformer and electric circuit | |
| CN216216067U (en) | Quick power conversion system across voltage classes | |
| CN216794627U (en) | Three-phase low-voltage regulator | |
| CN210167817U (en) | Quick phase-changing device for service line under distribution low-voltage transformer area | |
| CN217956704U (en) | Light stores up microgrid system based on electric automobile | |
| CN214626390U (en) | Heterogeneous generator grid-connected operation control cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |