CN2390352Y - HF switch type DC power supply complete apparatus for transformer substation - Google Patents
HF switch type DC power supply complete apparatus for transformer substation Download PDFInfo
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- CN2390352Y CN2390352Y CN 00200858 CN00200858U CN2390352Y CN 2390352 Y CN2390352 Y CN 2390352Y CN 00200858 CN00200858 CN 00200858 CN 00200858 U CN00200858 U CN 00200858U CN 2390352 Y CN2390352 Y CN 2390352Y
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Abstract
The utility model relates to a high-frequency switch type direct current power supply complete apparatus for a transformer substation, which is composed of a current feed charging screen, a battery screen, etc., wherein, the charging part of the current feed charging screen is composed of a plurality of high-frequency switch rectifier modules which are connected in parallel. According to the N plus 1 redundant configuration principle, the utility model is providing with a plurality of modules. The modules connected in parallel realize the equipartition of the power by the mode of the non-master slave automatic flow equalization. The current feed charging screen is provided with an automatic voltage regulating apparatus, the high-frequency switch rectifier modules, a microcomputer monitoring unit, and a direct current feeding unit. A battery protecting apparatus is arranged in the battery screen, so the protection of the battery polarity inversely connecting, the battery undervoltage, and the battery overvoltage can be automatically realized, a local or distant alarming signal is sent out, and the connection of the battery and other circuits is cut off. The utility model has the advantages of few screen body quantity, convenient and simple installation and maintenance, and security, and improves the reliability of the direct current supply.
Description
The utility model relates to a kind of HF switch type transforming plant DC power supply the complete sets of equipment.
Transformer station extensively adopts the DC control supply of being made up of storage battery, storage battery need regularly charge, this need be the rectifier of DC power supply with the ac power power source transition just, and rectifier also provides the electricity consumption of control load commonly used except that being the battery charging.
In the disclosed relevant patent of transforming plant DC power supply, transforming plant DC power supply the complete sets of equipment as bulletins such as Chinese patent CN2196341Y, CN2147676Y and CN2157618Y, the general Thyristor Controlled rectifier that adopts, rectifier is made up of Industrial Frequency Transformer, thyristor rectifier bridge, filter inductance and electric capacity, Industrial Frequency Transformer is realized the isolation of rectifier and electrical network, the angle of flow by the control thyristor changes output voltage, the requirement when satisfying storage battery difference operating mode.Although compare with the transforming plant DC power supply of magnetic saturation voltage regulation way, its electricity function index is greatly improved, and can satisfy the charging requirement of open type lead acid accumulator, but still has following tangible weak point:
(1) under the power frequency situation, carry out voltage transformation owing to phase controlled rectifier is still, thereby volume is big, heavy.
(2) be subjected to the restriction of phase control rectifier circuit theory, DC power supply has that the voltage stabilization and current stabilization precision is low, ripple voltage coefficient height, shortcoming that noise is big, when being used for the valve-control sealed lead acid battery group, causes the life of storage battery to reduce easily.
(3) two groups of rectifiers adopt one main one to be equipped with mode, and capacity configuration lacks flexibility, increases the screen body quantity of DC power system, thereby increases power supply cost and area occupied.
(4) storage battery lacks necessary safeguard measure as the important component part of transforming plant DC power supply in power supply.
The purpose of this utility model is: overcome the above-mentioned defective in the existing procucts, a kind of novel transforming plant DC power supply the complete sets of equipment are provided, thereby increase substantially the voltage stabilization and current stabilization precision and the ripple coefficient of product.
Second purpose of the present utility model is to reduce the cost and the floor space of product, changes maintenance mode, guarantees that power supply is stable, easy to maintenance.
The 3rd purpose of the present utility model provides a kind of transforming plant DC power supply with battery protection function, makes the Installation and Debugging of DC power supply more convenient, storage battery operation safety and reliability.
In order to achieve the above object, the utility model is achieved in that the utility model is by filling feed panel (1) and battery panel (2) two parts are formed, its feature live part adopts a plurality of high frequency switch power rectification modules (13) parallel connection, module number is pressed the setting of N+1 redundant configuration principle, realizes the mean allocation of power between the module in parallel from automatic current equalizing bus (20) by the average current type current dereliction.
For reaching second purpose, feature of the present utility model is to fill feed panel (1) with automatic pressure regulating device (16), high frequency switching rectifier module (13), micro computer monitoring unit (15) and DC feedback (11,12) be assembled in the screen, power distribution panels is provided with analog bus.
For reaching the 3rd purpose; the utility model is provided with battery protecting apparatus in battery panel (2); can realize automatically to battery polar connect instead, battery is under-voltage, the protection of battery overvoltage, sends this locality or distant place alarm signal, and cut off being connected of battery and other circuit.
In order to finish other purpose of the present utility model, high frequency switch power rectification module of the present utility model (13) adopts single-phase input mode.
High-frequency switching power supply module of the present utility model (13) has the Active Power Factor Correction function.
The utility model has adopted automatic pressure regulating device (16) and micro computer monitoring unit (15) in filling feed panel (1).
The utility model in detail described for illustrating better below by accompanying drawing.
Accompanying drawing 1 is a floor map of the present utility model.
Accompanying drawing 2 is these practical electrical principle schematic diagrames.
Accompanying drawing 3 is electrical schematics of battery protecting apparatus of the present utility model.
Figure number wherein:
1: fill feed panel; 2: battery panel; 3: voltage relay
4: alarm; 5: sound-shutoff switch; 6: alarm
7: battery condition tester; 8: batteries; 9: exchange the input circuit breaker
10: lightning arrester; 11: the combined floodgate feed element; 12: the control feed element
13: high frequency switching rectifier module; 14: control unit; 15: the micro computer monitoring unit
16: automatic pressure regulating device; 17: positive closing bus bar; 18: negative closing bus bar
19: the control bus; 20: the current-sharing bus; 21: rectifier bridge
22: dc circuit breaker; 23: contactor; 24: shunt release
The embodiment that provides below in conjunction with accompanying drawing is described in detail the utility model, two standard screens that adopt formed steel construction, the left side is to fill feed panel (1), the right is battery panel (2), fill and automatic pressure regulating device (16), micro computer monitoring unit (15), control unit (14), high frequency switching rectifier module (13), control feed element (12), combined floodgate feed element (11), lightning arrester (10) are housed on the feed panel (1) and exchange input circuit breaker (9), on the panel of control feed element (12) and combined floodgate feed element (11), be printed on analog bus.Direct current relay (3) on the battery panel (2), alarm (4), indicator light (6), sound-shutoff switch (5) and the dc circuit breaker (22), contactor (23), rectifier bridge (21), the shunt release (24) that are contained in the screen are formed the accumulator protecting device; battery condition tester (7) be installed in batteries (8) above, batteries (8) is by 17
-19 joint 100Ah (12V/ joint) valve-control sealed lead acid batteries are formed.
Operation principle of the present utility model is as follows: three-phase 380V alternating current is sent into the three-phase alternating current busbar through exchanging input circuit breaker (9), and then is assigned to 1 with single-phase form
-The input of N+1 high frequency switching rectifier module (13), the output of rectification module (13) just, negative terminal is connected on positive closing bus bar (17) and the negative closing bus bar (18) after the parallel connection respectively, give lead-acid batteries (8) charging, give the load power supply of control bus (19) simultaneously by dropping equipment (16), the shared current-sharing bus of N+1 high frequency switching rectifier module (13) (20), the flow equalizing circuit of inside modules is by with the level of current-sharing bus (20) with represent the level of each module output current to compare, dynamically adjust the output voltage of high frequency switching rectifier module (13), output current is consistent, proof load power is mean allocation between each module, when some modules break down, the flow equalizing circuit of inside modules makes this module withdraw from current-sharing, the average load sharing power of all the other modules does not influence the operation of whole device.
The operation principle of accumulator protecting is as follows: with reference to accompanying drawing 3; lead-acid batteries (8) is connected on positive closing bus bar (17) and the negative closing bus bar (18) by dc circuit breaker (22); the power supply power supply of giving voltage relay (3) after voltage process rectifier bridge (21) rectification of batteries (8); like this; the polarity that no matter is battery pack (8) is just to connect or reversal connection, all can guarantee the power supply of voltage relay (3).By the potentiometer on regulation voltage relay (3) panel, can set the overvoltage and the under-voltage value of battery pack (8).The voltage of battery pack (8) is sent into the voltage sampling end of voltage relay (3) simultaneously, when the voltage of battery pack (8) is lower than the under-voltage value of voltage relay (3) setting or is higher than the overpressure value of setting, the overvoltage contact of voltage relay (3) or the under-voltage closing of contact, disconnect dc circuit breaker (22) by shunt release (24), simultaneously, alarm (4) sends alarm signal, and indicator light (6) is bright, and instructed voltage is unusual.When the polarity of battery pack (8) connects inverse time, the voltage signal of delivering to voltage relay (3) sampling end is a negative value, and voltage relay (8) is judged as under-voltage.
The outstanding advantages that the utlity model has is:
(1) live part adopts high frequency switching rectifier module, can increase substantially the voltage stabilization and current stabilization essence of product Degree reduces the ripple voltage coefficient, improves power factor and efficient.
(2) live part adopts a plurality of high frequency switching rectifier module parallel connections, N+1 redundancy backup mode, tool The advantages such as reliability height, capacity configuration is flexible, maintenance is convenient are arranged.
(3) rectifier cubice and direct current feed control panel are combined in one and fill in the feed panel the low and occupation of land face of cost Long-pending little.
(4) safe and reliable Storage battery protecting device guarantees the safe handling of battery, makes the utility model Convenient for installation and maintenance, safe and reliable, will be subjected to operating personnel's welcome.
Claims (4)
1, a kind of HF switch type transforming plant DC power supply the complete sets of equipment are formed by filling feed panel (1), battery panel (2) etc., it is characterized in that the live part that fills feed panel (1) is composed in parallel by a plurality of high frequency switching rectifier modules (13), by N+1 redundant configuration principle module number is set, realizes the mean allocation of intermodule power between the module in parallel by the average current type current dereliction from automatic current equalizing bus (20).
2, HF switch type transforming plant DC power supply the complete sets of equipment according to claim 1, it is characterized in that filling feed panel (1) automatic pressure regulating device (16), high frequency switching rectifier module (13), micro computer monitoring unit (15) and DC feedback (11,12) are assembled in the screen, power distribution panels is provided with analog bus.
3, HF switch type transforming plant DC power supply the complete sets of equipment according to claim 1; it is characterized in that battery panel (2) is provided with the accumulator protecting device; can realize automatically to battery polar connect instead, battery is under-voltage, the protection of battery overvoltage; send this locality or distant place alarm signal, and the cut-out battery is connected with other circuit.
4, HF switch type transforming plant DC power supply the complete sets of equipment according to claim 1 is characterized in that high-frequency switching power supply module (13) adopts single-phase input mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00200858 CN2390352Y (en) | 2000-01-20 | 2000-01-20 | HF switch type DC power supply complete apparatus for transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00200858 CN2390352Y (en) | 2000-01-20 | 2000-01-20 | HF switch type DC power supply complete apparatus for transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2390352Y true CN2390352Y (en) | 2000-08-02 |
Family
ID=33570230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00200858 Expired - Fee Related CN2390352Y (en) | 2000-01-20 | 2000-01-20 | HF switch type DC power supply complete apparatus for transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2390352Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088203A (en) * | 2011-03-15 | 2011-06-08 | 辽宁省电力有限公司抚顺供电公司 | Portable emergency direct current power supply system |
| CN102372197A (en) * | 2010-08-12 | 2012-03-14 | 上海三菱电梯有限公司 | Elevator control device |
| CN102874723A (en) * | 2012-10-16 | 2013-01-16 | 山东电力集团公司滨州供电公司 | Screen body moving tool |
| CN104407185A (en) * | 2014-12-08 | 2015-03-11 | 赵伊苓 | Electric oscillating wave generator |
| CN105048626A (en) * | 2015-08-26 | 2015-11-11 | 国家电网公司 | De-energizing and automatic tripping system for direct-current screen |
| CN109861373A (en) * | 2019-01-22 | 2019-06-07 | 力帆实业(集团)股份有限公司 | Emergency service equipment based on DC low-voltage protection control loop |
| CN112489404A (en) * | 2020-10-30 | 2021-03-12 | 浙江奔跑电器有限公司 | Embedded 5G communication series power supply system |
-
2000
- 2000-01-20 CN CN 00200858 patent/CN2390352Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102372197A (en) * | 2010-08-12 | 2012-03-14 | 上海三菱电梯有限公司 | Elevator control device |
| CN102088203A (en) * | 2011-03-15 | 2011-06-08 | 辽宁省电力有限公司抚顺供电公司 | Portable emergency direct current power supply system |
| CN102874723A (en) * | 2012-10-16 | 2013-01-16 | 山东电力集团公司滨州供电公司 | Screen body moving tool |
| CN104407185A (en) * | 2014-12-08 | 2015-03-11 | 赵伊苓 | Electric oscillating wave generator |
| CN105048626A (en) * | 2015-08-26 | 2015-11-11 | 国家电网公司 | De-energizing and automatic tripping system for direct-current screen |
| CN109861373A (en) * | 2019-01-22 | 2019-06-07 | 力帆实业(集团)股份有限公司 | Emergency service equipment based on DC low-voltage protection control loop |
| CN112489404A (en) * | 2020-10-30 | 2021-03-12 | 浙江奔跑电器有限公司 | Embedded 5G communication series power supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |