CN110994782A - Power supply device for electric control cabinet - Google Patents
Power supply device for electric control cabinet Download PDFInfo
- Publication number
- CN110994782A CN110994782A CN201911387370.4A CN201911387370A CN110994782A CN 110994782 A CN110994782 A CN 110994782A CN 201911387370 A CN201911387370 A CN 201911387370A CN 110994782 A CN110994782 A CN 110994782A
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- China
- Prior art keywords
- battery
- power supply
- control cabinet
- electric control
- supply device
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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
- 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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
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- 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
Abstract
The invention provides an electric control cabinet power supply device, which comprises a shell and an integrated power supply system arranged in the shell; the shell comprises a plurality of cross beams and vertical beams, a battery jar is arranged in the shell, the battery jar is of a groove-shaped structure with openings at two ends and above, and two ends of the battery jar are erected on the cross beams of the shell; the integrated power supply system comprises a battery module and a UPS (uninterrupted power supply), wherein the battery module comprises a plurality of batteries, the batteries are placed in a battery tank, the batteries are connected in series, and the battery module consisting of the batteries supplies power to a load under the control of the UPS; the UPS is used for supplying power to a main control system of the wind generating set. The integrated power supply system of the power supply device of the electric control cabinet can provide uninterrupted power for a plurality of control systems, is modular in design, strong in expandability, intelligent in battery management, safe, reliable, simple in operation and maintenance and capable of reducing operation cost.
Description
Technical Field
The invention belongs to the field of electric power product control, and particularly relates to a power supply device of an electric control cabinet.
Background
In fan control system, the major control system is very critical to wind generating set's control, therefore the major control system must dispose backup power, in order to guarantee when the electric wire netting falls the electricity, major control system's controller can continuous operation and the state of monitoring fan, guarantee the unit safety shutdown, to powerful major control system such as 5.5MW, 7MW, 8MW, the electrical component kind in its switch board is various, can't satisfy the requirement of owner to backup power capacity in limited space, if give every switch board: the tower footing cabinet, the engine room signal cabinet and the engine room power cabinet are respectively provided with a battery box, the limited space in the tower barrel is not easy to realize, and the maintenance is troublesome. In summary, before the integrated scheme of power supply of the control cabinet is not added, the following defects exist:
each control cabinet of the wind generating set needs to be respectively provided with power supply systems with different capacities according to different requirements of customers on the continuous operation time of the control cabinet after power failure of a power grid, so that the applicability is poor; independent power supply is added in each control cabinet, batteries of each power supply system need to be monitored in real time, and the monitoring points are more and are not easy to manage and maintain; once the difficulty of later-stage change of the power supply load is confirmed at the early stage is high, and even the change can not be carried out and redesign is required; the battery pack needs to be configured in each control cabinet, the configuration is diversified, the electric energy quality control cannot be effectively carried out, and the overall power supply quality is influenced; the power supply system is respectively installed in each control cabinet, the load in the cabinet is diversified, the electromagnetic interference is large, and the reliability is reduced.
Summary of the invention
In view of this, the invention aims to provide a power supply device for an electric control cabinet, which can meet various requirements of customers and shorten the design period of products; the intelligent management can be carried out on the battery, and the switching and the dormancy of a single module are realized according to the load; the independent power supply system structure can eliminate various power disturbance in the power grid; the independent power supply system has strong anti-interference capability and is safe and reliable.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an electric control cabinet power supply device comprises a shell and an integrated power supply system arranged in the shell;
the shell comprises a plurality of cross beams and vertical beams, a battery jar is arranged in the shell, the battery jar is of a groove-shaped structure with openings at two ends and above, and two ends of the battery jar are erected on the cross beams of the shell;
the integrated power supply system comprises a battery module and a UPS (uninterrupted power supply), wherein the battery module comprises a plurality of batteries, the batteries are placed in a battery tank, the batteries are connected in series, and the battery module consisting of the batteries supplies power to a load under the control of the UPS;
the UPS is arranged in the electric control cabinet body and is used for supplying power to a main control system of the wind generating set.
Furthermore, a tray for containing the batteries is arranged below each battery, the size of the tray corresponds to that of the battery, and the batteries are placed on the battery grooves through the trays.
Furthermore, each battery jar is also provided with a battery clamp, and the battery clamp is used for fixing a battery.
Furthermore, fixed blocks are further arranged at two ends of the battery jar and are of an L-shaped structure, the fixed blocks are arranged in the battery jar, and the length of each fixed block is smaller than the width of the battery jar.
Furthermore, the battery jar is equipped with a plurality ofly, is equipped with a plurality of batteries on every the battery jar.
Further, the battery is a lead-acid storage battery.
Furthermore, an electromagnetic shielding wire mesh used for reducing electromagnetic interference among all parts of the power supply system is arranged on the outer surface of the electric control cabinet body.
Furthermore, the input of the UPS is boosted to +/-360V stable direct-current voltage through the PFC, and the stable 220V alternating-current voltage is supplied to the DC/AC inverter to output stable 220V alternating current and charge the battery module.
Furthermore, integrated power supply system still includes serial communication module, serial communication module is connected with battery module and UPS, serial communication module is arranged in exporting the operating condition of power supply system internals to the monitoring module of fan switch board for carry out effectual maintenance to battery health status and trouble.
Compared with the prior art, the power supply device for the electric control cabinet has the following advantages:
the integrated power supply system of the power supply device of the electric control cabinet can provide uninterrupted power for a plurality of control systems, is modular in design, strong in expandability, intelligent in battery management, safe, reliable, simple in operation and maintenance and capable of reducing operation cost.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
fig. 1 is a schematic diagram of a framework of an electric control cabinet system according to an embodiment of the present invention;
FIG. 2 is a schematic view of an electric control cabinet according to an embodiment of the present invention;
fig. 3 is a partial schematic view of an electric control cabinet according to an embodiment of the present invention;
fig. 4 is a schematic view of a battery lower layout of an electric control cabinet according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an upper layout of a battery of an electric control cabinet according to an embodiment of the present invention;
FIG. 6 is a schematic side view of an electric control cabinet according to an embodiment of the present invention;
fig. 7 is a schematic diagram illustrating the principle of UPS in the integrated power supply system according to the embodiment of the present invention;
fig. 8 is a schematic diagram of a communication interface of a power supply integration system according to an embodiment of the present invention;
fig. 9 is a schematic diagram illustrating the control principle of the integrated power supply system according to the embodiment of the invention.
Description of reference numerals:
1-a shell; 11-vertical beam; 12-a cross beam; 2-a battery jar; 21-a battery clip; 22-fixed block; 3-an integrated power supply system; 4-UPS; 5-a battery; 51-pallet.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
As shown in fig. 1 to 9, an electric control cabinet power supply device includes a housing 1 and an integrated power supply system 3 disposed in the housing 1;
the shell 1 comprises a plurality of cross beams 12 and vertical beams 11, a battery jar 2 is arranged in the shell 1, the battery jar 2 is of a groove-shaped structure with openings at two ends and above, and two ends of the battery jar 2 are erected on the cross beams 12 of the shell 1;
the integrated power supply system 3 comprises a battery module and a UPS4, wherein the battery module comprises a plurality of batteries 5, the batteries 5 are placed in a battery tank 2, each battery 5 is connected in series, and the battery module consisting of the batteries 5 is controlled by the UPS4 to supply power to a load;
the UPS4 and the integrated power supply system 3 are applied to the prior art and the existing products, and the application only relates to the improvement of the positions of the UPS4 and the integrated power supply system 3 in the electric control cabinet.
The UPS4 is arranged in the electric control cabinet body, and the UPS4 is used for supplying power to a main control system of the wind generating set.
A tray for accommodating the batteries 5 is further arranged below each battery 5, the size of the tray corresponds to that of each battery 5, and the batteries 5 are placed on the battery grooves 2 through the trays.
Each battery slot 2 is further provided with a battery clamp 21, and the battery clamp 21 is used for fixing the battery 5.
The battery jar 2 both ends still are equipped with fixed block 22, fixed block 22 is L type structure, fixed block 22 sets up in battery jar 2, the length of fixed block 22 is less than the width of battery jar 2.
The battery jar 2 is equipped with a plurality ofly, is equipped with a plurality of batteries 5 on every battery jar 2.
The battery 5 is a lead-acid storage battery.
And an electromagnetic shielding wire mesh for reducing electromagnetic interference among all parts of the power supply system is arranged on the outer surface of the electric cabinet body.
The input of the UPS is boosted to +/-360V stable direct-current voltage through the PFC, and the stable direct-current voltage is supplied to the DC/AC inverter to output stable 220V alternating current and charge the battery module.
The integrated power supply system further comprises a serial communication module, the serial communication module is connected with the battery module and the UPS, and the serial communication module is used for outputting the working state of internal parts of the power supply system to the monitoring module of the fan control cabinet and effectively maintaining the health state and faults of the battery.
According to the requirement of the conventional wind power plant on large power supply capacity in the power supply integrated system, the maximum capacity of the battery module is designed to be 6 40Ah batteries which are connected in series, and the continuous work of 20A/24VDC load for 2h can be met. According to different requirements of customers on the capacity of the power supply system, the number of the battery modules which are switched into the UPS can be changed. The battery module is made into a push-pull type installation scheme in the cabinet, the push-pull type installation scheme is divided into an upper layer and a lower layer, two groups of batteries are arranged on the upper layer, 4 groups of batteries are arranged on the lower layer, the increase and decrease of the number of the batteries cannot increase the workload, and the overall layout of the battery module in the cabinet space power supply integrated system refers to fig. 2 and 3.
The power supply integrated system adopts a design scheme separated from the control system, and an independent working space effectively protects the electric power, including eliminating various electric power disturbances in the power grid, such as voltage fluctuation, frequency fluctuation, harmonic waves, voltage distortion and the like. The independent design space of the power supply integration system is referred to fig. 4.
The core components in the power supply integrated system are a UPS and a lead-acid storage battery, and the UPS performs intelligent management on the battery module. When the voltage of a power grid normally works, the input of a core component UPS in the power supply integrated system is boosted into +/-360V stable direct-current voltage through a PFC (Power factor correction), the +/-360V stable direct-current voltage is supplied to a DC/AC inverter, stable 220V alternating current is output, and meanwhile, the charging of a battery module of the system is completed. When the voltage of the power grid is abnormal, the battery is boosted to +/-360V direct-current voltage through the DC/DC of the UPS and supplied to the DC/AC inverter. The working state of the internal devices of the integrated power supply system can be output to the monitoring module of the fan control cabinet through serial port communication, and the health state and the faults of the battery can be effectively maintained through state monitoring. In the battery module, the number of the batteries in the power supply integrated system can be switched in or out freely according to the requirement of the actual load on the power supply capacity. A schematic diagram of a power supply integrated system UPS is shown in fig. 5. The power supply integrated system communication interface is defined as shown in fig. 7. The control schematic diagram of the power supply integrated system is shown in fig. 7.
The power supply integration scheme effectively provides a modular design of a power supply system, can adapt to various requirements of customers, and shortens the design period of products; the intelligent management can be carried out on the battery, and the switching and the dormancy of a single module are realized according to the load; the independent power supply system structure can eliminate various power disturbance in the power grid; the independent power supply system has strong anti-interference capability and is safe and reliable.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (9)
1. An electric control cabinet power supply device is characterized in that: comprises a shell (1) and an integrated power supply system (3) arranged in the shell (1);
the shell (1) comprises a plurality of cross beams (12) and vertical beams (11), a battery jar (2) is arranged in the shell (1), the battery jar (2) is of a groove-shaped structure with openings at two ends and above, and two ends of the battery jar (2) are erected on the cross beams (12) of the shell (1);
the integrated power supply system (3) comprises a battery module and a UPS (4), wherein the battery module comprises a plurality of batteries (5), the batteries (5) are placed in a battery tank (2), each battery (5) is connected in series, and the battery module consisting of the batteries (5) is controlled by the UPS (4) to supply power to a load;
the UPS (4) is arranged in the electric control cabinet body, and the UPS (4) is used for supplying power to a main control system of the wind generating set.
2. The electric control cabinet power supply device according to claim 1, characterized in that: each battery (5) is also provided with a tray for accommodating the battery (5) below, the size of the tray corresponds to that of the battery (5), and the battery (5) is placed on the battery tank (2) through the tray.
3. The electric control cabinet power supply device according to claim 1, characterized in that: each battery groove (2) is also provided with a battery clamp (21), and the battery clamps (21) are used for fixing the batteries (5).
4. The electric control cabinet power supply device according to claim 1, characterized in that: the battery jar (2) both ends still are equipped with fixed block (22), fixed block (22) are L type structure, fixed block (22) set up in battery jar (2), the length of fixed block (22) is less than the width of battery jar (2).
5. The electric control cabinet power supply device according to claim 1, characterized in that: the battery jar (2) is equipped with a plurality ofly, is equipped with a plurality of batteries (5) on every battery jar (2).
6. The electric control cabinet power supply device according to claim 1, characterized in that: the battery (5) is a lead-acid storage battery.
7. The electric control cabinet power supply device according to claim 1, characterized in that: and an electromagnetic shielding wire mesh for reducing electromagnetic interference among all parts of the power supply system is arranged on the outer surface of the electric cabinet body.
8. The electric control cabinet power supply device according to claim 1, characterized in that: the input of the UPS (4) is boosted to be +/-360V stable direct-current voltage through the PFC, the direct-current voltage is supplied to the DC/AC inverter to output stable 220V alternating current, and meanwhile, the charging of the battery module is completed, and the PFC is used for boosting.
9. The electric control cabinet power supply device according to claim 1, characterized in that: the integrated power supply system (3) further comprises a serial communication module, the serial communication module is connected with the battery module and the UPS (4), and the serial communication module is used for outputting the working state of internal parts of the power supply system to a monitoring module of the fan control cabinet and effectively maintaining the health state and faults of the battery (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911387370.4A CN110994782A (en) | 2019-12-27 | 2019-12-27 | Power supply device for electric control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911387370.4A CN110994782A (en) | 2019-12-27 | 2019-12-27 | Power supply device for electric control cabinet |
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| Publication Number | Publication Date |
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| CN110994782A true CN110994782A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911387370.4A Pending CN110994782A (en) | 2019-12-27 | 2019-12-27 | Power supply device for electric control cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112003347A (en) * | 2020-08-24 | 2020-11-27 | 中国工商银行股份有限公司 | Control method, system, electronic device, and medium |
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- 2019-12-27 CN CN201911387370.4A patent/CN110994782A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112003347A (en) * | 2020-08-24 | 2020-11-27 | 中国工商银行股份有限公司 | Control method, system, electronic device, and medium |
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Effective date of registration: 20211015 Address after: 300308 100 Hangtian Road, Airport Economic Zone, Binhai New Area, Tianjin Applicant after: TIANJIN RUIYUAN ELECTRICAL Co.,Ltd. Address before: No.1 Xinghua No.7 Branch Road, economic development zone, Xiqing District, Tianjin Applicant before: Tianjin Ruineng electric Co.,LTD. |