CN104638910A - Power system transformer substation communication equipment power supply with embedded direct-current power supply module structure - Google Patents
Power system transformer substation communication equipment power supply with embedded direct-current power supply module structure Download PDFInfo
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- CN104638910A CN104638910A CN201510055651.5A CN201510055651A CN104638910A CN 104638910 A CN104638910 A CN 104638910A CN 201510055651 A CN201510055651 A CN 201510055651A CN 104638910 A CN104638910 A CN 104638910A
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- 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
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/009—Converters characterised by their input or output configuration having two or more independently controlled outputs
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention relates to a power system transformer substation communication equipment power supply with an embedded direct-current power supply module structure. The power system transformer substation communication equipment power supply comprises a 110V/220V direct current power supply and substation communication equipment, wherein an embedded direct-current power supply module is embedded into the substation communication equipment; a 110V direct current output end and a 220V direct current output end are arranged in a 110V/220V direct-current power supply system for a power system transformer substation; the 110V direct current output end and the 220V direct current output end are connected with the input end of the embedded direct-current power supply module; the embedded direct-current power supply module is embedded into a circuit board of the communication equipment to construct an integral circuit board structure with the circuit board of the communication equipment; an input direct-current voltage selection circuit is arranged in the embedded direct-current power supply module to select a 110V or 220V direct-current input voltage; 12V, 5V and 3V direct-current output voltages are set in the embedded direct-current power supply module to construct a voltage conversion circuit capable of converting the 110V/220V direct-current input voltage into the 12V, 5V and 3V direct-current output voltages, thereby constructing the embedded direct-current power supply module structure for the communication equipment with the 12V, 5V and 3V direct-current output voltages. The power system transformer substation communication equipment power supply is simple in application, is convenient in maintenance, and is simple in structure.
Description
Technical field
The present invention relates to a kind of power system transformer substation communication equipment power supply with embedded direct current power module structure, being applicable to power system transformer substation integrated commutation screen 110V/220V VD Direct Transform is communication equipment power supply.Belong to power system transformer substation communication equipment power technique fields.
Background technology
Integration power-supply system is with transforming plant DC power supply for core, DC power supply to be combined into one with DC transformating power (be called for short DC-DC) with communicating, to share the batteries of DC power supply, and the complete set of equipments of unified monitoring.At present, the DC power supply input module employing-48V that communication equipment 1-1 is conventional, integrated power supply needs to carry out, after DC converting, to power for communication equipment through external DC-DC converter.110V/220V direct current is changed into-48V direct current particular by DC/DC converter (DC/DC module 1-2), for all communication equipment 1-1 provide power supply,-48V the power supply system for communications is as the subsystem of integrated power supply, install-48V communication DC transformating power (DC/DC module 1-2) additional by transforming plant DC power source charges machine, the DC/DC communication power supply electric power system adopted is made up of, in the outlet side plus earth of direct current-48V parts such as DC/DC module, DC distributors.
The external DC-DC converter of prior art is adopted to there is following aspect defect: (1) is when certain communication equipment loop is short-circuited or transships, enough impulse currents cannot be provided to realize the timely cut-out of fault loop, air switch cannot tripping in time, 48V is made to export the voltage drop of bus, other loads on bus are caused to be restarted, affect other communication device works, expand fault coverage.The DC/DC module of communication equipment outside becomes restraining factors of communication equipment power taking.(2) circuit board of the inside communication equipment used at present, normally adopts the direct voltage of 12V, 5V or 3V as power supply.After prior art realizes being converted to the conversion of 48V direct current from 110V or 220V direct current by DC/DC module, the direct voltage of 48V to 12V, 5V or 3V has still been needed to change at inside communication equipment, twice conversion reduces the service efficiency of electric energy, too increases fault point.
Summary of the invention
Object of the present invention, be that need twice conversion that the external DC-DC converter in order to solve prior art exists reduces the service efficiency of electric energy and increase the problem of fault point, a kind of power system transformer substation communication equipment power supply with embedded direct current power module structure is provided.
Object of the present invention can be achieved through the following technical solutions:
With the power system transformer substation communication equipment power supply of embedded direct current power module structure, comprise 110V/220V DC power supply and the station communication equipment of power system transformer substation, embedded DC power supplier is provided with in the communication equipment of station, be provided with 110V or 220V DC output end in the 110V/220V DC power system of power system transformer substation, described 110V with 220V DC output end is connected with the input of embedded DC power supplier; Embedded DC power supplier is implanted in the circuit board of communication equipment and is formed integrated circuit plate structure with the circuit board of communication equipment, input direct voltage selection circuit is provided with in embedded DC power supplier, to select 110V or 220V DC input voitage, be provided with 12V, 5V and 3V VD in embedded DC power supplier, form voltage conversion circuit 110V/220V DC input voitage being converted to 12V, 5V and 3V VD; Form the embedded direct current supply modular structure of communication equipment of band 12V, 5V and 3V VD.
Object of the present invention can be achieved through the following technical solutions:
Further, described voltage conversion circuit 110V/220V DC input voitage being converted to 12V VD, is formed by connecting by mains switch S1, inductance L 1, diode VD1, electric capacity C1 and resistance RL1; Electric capacity C1 and resistance RL1 is in parallel, the negative pole of diode VD1 connects electric capacity C1 and resistance RL1 and one end of joint group by inductance L 1, the positive pole of 110V/220V direct-current input power supplying connects the negative pole of diode VD1 by mains switch S1, form the positive terminal of 12V VD; The positive pole of diode VD1 connects electric capacity C1 and resistance RL1 and the negative pole of the other end of joint group and 110V/220V direct-current input power supplying, forms the negative pole end of 12V VD.
Further, described voltage conversion circuit 110V/220V DC input voitage being converted to 5V VD, is formed by connecting by mains switch S2, inductance L 2, diode VD2, electric capacity C2 and resistance RL2; Electric capacity C2 and resistance RL2 is in parallel, the negative pole of diode VD2 connects electric capacity C2 and resistance RL2 and one end of joint group by inductance L 2, the positive pole of 110V/220V direct-current input power supplying connects the negative pole of diode VD2 by mains switch S2, form the positive terminal of 5V VD; The positive pole of diode VD2 connects electric capacity C2 and resistance RL2 and the negative pole of the other end of joint group and 110V/220V direct-current input power supplying, forms the negative pole end of 5V VD.
Further, described voltage conversion circuit 110V/220V DC input voitage being converted to 3V VD, is formed by connecting by mains switch S3, inductance L 3, diode VD3, electric capacity C3 and resistance RL3; Electric capacity C3 and resistance RL3 is in parallel, the negative pole of diode VD3 connects electric capacity C3 and resistance RL3 and one end of joint group by inductance L 3, the positive pole of 110V/220V direct-current input power supplying connects the negative pole of diode VD3 by mains switch S3, form the positive terminal of 3V VD; The positive pole of diode VD3 connects electric capacity C3 and resistance RL3 and the negative pole of the other end of joint group and 110V/220V direct-current input power supplying, forms the negative pole end of 3V VD.
Further, the input/output voltage characteristic index of described embedded DC power supplier (1) meets following expression:
1) input direct voltage=(85%-117.5%) Un, wherein, Un is the nominal voltage of transforming plant DC power-supply system, and when using 110V DC power system, Un is 110V; When using 220V DC power system, Un is 220V;
2) VD scope: 12V output end voltage=10.8V-13.2VDC, 5V output end voltage=4.5V-5.5VDC, 3V output end voltage=2.7V-3.3VDC.
The present invention has following outstanding beneficial effect and substantive distinguishing features:
1, the present invention is being provided with embedded DC power supplier in the communication equipment of station, be provided with 110V or 220V DC output end in the 110V/220V DC power system of power system transformer substation, described 110V with 220V DC output end is connected with the input of embedded DC power supplier; Embedded DC power supplier is implanted in the circuit board of communication equipment and is formed integrated circuit plate structure with the circuit board of communication equipment, input direct voltage selection circuit is provided with in embedded DC power supplier, to select 110V or 220V DC input voitage, be provided with 12V, 5V and 3V VD in embedded DC power supplier, form voltage conversion circuit 110V/220V DC input voitage being converted to 12V, 5V and 3V VD; Form the embedded direct current supply modular structure of communication equipment of band 12V, 5V and 3V VD, therefore, when 110V/220V embedded DC power supplier fault only affects single communication equipment itself, the communication equipment that can not affect other branch road is powered, the technical problem of the communication equipment power-off of other branch road that the 48V direct current solving DC/DC module in prior art integrated power supply exports branch, short-circuit and overload and causes, and have use simple, safeguard the beneficial effects such as more convenient and structure is simpler.
2,110V or 220V that the present invention is exported by prior art transforming plant DC power supply changes 48V, the pressure reduction being converted to 12V, 5V or 3V by 48V be again optimized to that transforming plant DC power supply exports 110V or 220V directly change 12V, 5V or 3V, The present invention reduces a DC/DC conversion, avoid repeatedly voltage of transformation, improve energy conversion efficiency, service efficiency is higher.
3, the present invention by directly implanting the 12V 110V or the 220V direct current that transforming plant DC power supply exports being converted to the use of communication equipment board on communication equipment interior circuit board, the embedded DC power supplier of the galvanic 110V/220V of 5V or 3V, communication equipment voltage input characteristics is mated with the output characteristic of transforming plant DC power supply, voltage output characteristics is with communication equipment board electricity consumption Performance Match, simplify and optimize direct current transfer process, and the fault coverage of the communication equipment power-off of other branch road caused at output branch, short-circuit and overload narrows down to equipment itself, the fault of single spur track does not affect other communication equipment, safeguard convenient, security performance is better.
Accompanying drawing explanation
Fig. 1 is the circuit scheme of installation of prior art.
Fig. 2 is circuit scheme of installation of the present invention.
Fig. 3 is the circuit theory diagrams of the specific embodiment 1 of the embedded DC power supplier of invention 110V/220V.
Fig. 4 is the circuit theory diagrams of the specific embodiment 2 of the embedded DC power supplier of invention 110V/220V.
Fig. 5 is the circuit theory diagrams of the specific embodiment 3 of the embedded DC power supplier of invention 110V/220V.
Embodiment
With reference to the power system transformer substation communication equipment power supply of the embedded direct current power module structure of band shown in Fig. 2 to Fig. 5, comprise 110V/220V DC power supply and the station communication equipment 2 of power system transformer substation, embedded DC power supplier 1 is provided with in the communication equipment of station, be provided with 110V or 220V DC output end in the 110V/220V DC power system of power system transformer substation, described 110V with 220V DC output end is connected with the input of embedded DC power supplier; Embedded DC power supplier 1 is implanted in the circuit board of communication equipment 2 and is formed integrated circuit plate structure with the circuit board of communication equipment, input direct voltage selection circuit is provided with in embedded DC power supplier 1, to select 110V or 220V DC input voitage, be provided with 12V, 5V and 3V VD in embedded DC power supplier, form voltage conversion circuit 110V/220V DC input voitage being converted to 12V, 5V and 3V VD; Form the embedded direct current supply modular structure of communication equipment of band 12V, 5V and 3V VD.
The input/output voltage characteristic index of described embedded DC power supplier 1 meets following expression:
1) input direct voltage=(85%-117.5%) Un, wherein, Un is the nominal voltage of transforming plant DC power-supply system, and when using 110V DC power system, Un is 110V; When using 220V DC power system, Un is 220V;
2) VD scope: 12V output end voltage=10.8V-13.2VDC, 5V output end voltage=4.5V-5.5VDC, 3V output end voltage=2.7V-3.3VDC.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiment 1
In embodiment, with reference to the power system transformer substation communication equipment power supply of the embedded direct current power module structure of band shown in Fig. 2 to Fig. 3, described voltage conversion circuit 110V/220V DC input voitage being converted to 12V VD, is formed by connecting by mains switch S1, inductance L 1, diode VD1, electric capacity C1 and resistance RL1; Electric capacity C1 and resistance RL1 is in parallel, the negative pole of diode VD1 connects electric capacity C1 and resistance RL1 and one end of joint group by inductance L 1, the positive pole of 110V/220V direct-current input power supplying connects the negative pole of diode VD1 by mains switch S1, form the positive terminal of 12V VD; The positive pole of diode VD1 connects electric capacity C1 and resistance RL1 and the negative pole of the other end of joint group and 110V/220V direct-current input power supplying, forms the negative pole end of 12V VD.
The voltage characteristic index of the input and output in the present embodiment is as follows:
DC bus input voltage range: (85% ~ 117.5%) U
n
VD scope: 12V exports: 10.8V ~ 13.2V
dC
Other may be exported by required voltage, export with reference to nominal value: 90% nominal value ~ 110% nominal value V
dC.
Wherein, Un is the nominal voltage of transforming plant DC power-supply system, and when using 110V DC power system, Un is 110V; When using 220V DC power system, Un is 220V.
Embodiment 2
The technical characterstic of the present embodiment 2 is: as shown in Figure 4, described voltage conversion circuit 110V/220V DC input voitage being converted to 5V VD, is formed by connecting by mains switch S2, inductance L 2, diode VD2, electric capacity C2 and resistance RL2; Electric capacity C2 and resistance RL2 is in parallel, the negative pole of diode VD2 connects electric capacity C2 and resistance RL2 and one end of joint group by inductance L 2, the positive pole of 110V/220V direct-current input power supplying connects the negative pole of diode VD2 by mains switch S2, form the positive terminal of 5V VD; The positive pole of diode VD2 connects electric capacity C2 and resistance RL2 and the negative pole of the other end of joint group and 110V/220V direct-current input power supplying, forms the negative pole end of 5V VD.
The voltage characteristic index of the input and output in the present embodiment is as follows:
DC bus input voltage range: (85% ~ 117.5%) U
n
VD scope: 5V exports: 4.5V ~ 5.5V
dC
Other may be exported by required voltage, export with reference to nominal value: 90% nominal value ~ 110% nominal value V
dC
Wherein, Un is the nominal voltage of transforming plant DC power-supply system, and when using 110V DC power system, Un is 110V; When using 220V DC power system, Un is 220V.
Embodiment 3
The technical characterstic of the present embodiment 2 is: as shown in Figure 5, described voltage conversion circuit 110V/220V DC input voitage being converted to 3V VD, is formed by connecting by mains switch S3, inductance L 3, diode VD3, electric capacity C3 and resistance RL3; Electric capacity C3 and resistance RL3 is in parallel, the negative pole of diode VD3 connects electric capacity C3 and resistance RL3 and one end of joint group by inductance L 3, the positive pole of 110V/220V direct-current input power supplying connects the negative pole of diode VD3 by mains switch S3, form the positive terminal of 3V VD; The positive pole of diode VD3 connects electric capacity C3 and resistance RL3 and the negative pole of the other end of joint group and 110V/220V direct-current input power supplying, forms the negative pole end of 3V VD.
The voltage characteristic index of the input and output in the present embodiment is as follows:
DC bus input voltage range: (85% ~ 117.5%) U
n
VD scope: 3V exports: 2.7V ~ 3.3V
dC
Other may be exported by required voltage, export with reference to nominal value: 90% nominal value ~ 110% nominal value V
dC
Wherein, Un is the nominal voltage of transforming plant DC power-supply system, and when using 110V DC power system, Un is 110V; When using 220V DC power system, Un is 220V.
The present invention by the utilization voltage of the direct-flow electricity utilization apparatus such as relaying protection in Unified Communication equipment and transformer station, the problem of the communication equipment power-off of other branch road that the 48V direct current that also can solve DC/DC module in prior art integrated power supply exports branch, short-circuit and overload and causes.
Claims (5)
1. be with the power system transformer substation communication equipment power supply of embedded direct current power module structure, comprise 110V/220V DC power supply and the station communication equipment (2) of power system transformer substation, it is characterized in that: in the communication equipment of station, be provided with embedded DC power supplier (1), be provided with 110V and 220V DC output end in the 110V/220V DC power system of power system transformer substation, described 110V or 220V DC output end is connected with the input of embedded DC power supplier; Embedded DC power supplier (1) is implanted in the circuit board of communication equipment (2) and is formed integrated circuit plate structure with the circuit board of communication equipment, embedded DC power supplier is provided with input direct voltage selection circuit in (1), to select 110V or 220V DC input voitage, be provided with 12V, 5V and 3V VD in embedded DC power supplier, form voltage conversion circuit 110V/220V DC input voitage being converted to 12V, 5V and 3V VD; Form the embedded direct current supply modular structure of communication equipment of band 12V, 5V and 3V VD.
2. the power system transformer substation communication equipment power supply of the embedded direct current power module structure of band according to claim 1, it is characterized in that: described voltage conversion circuit 110V/220V DC input voitage being converted to 12V VD, be formed by connecting by mains switch S1, inductance L 1, diode VD1, electric capacity C1 and resistance RL1; Electric capacity C1 and resistance RL1 is in parallel, the negative pole of diode VD1 connects electric capacity C1 and resistance RL1 and one end of joint group by inductance L 1, the positive pole of 110V/220V direct-current input power supplying connects the negative pole of diode VD1 by mains switch S1, form the positive terminal of 12V VD; The positive pole of diode VD1 connects electric capacity C1 and resistance RL1 and the negative pole of the other end of joint group and 110V/220V direct-current input power supplying, forms the negative pole end of 12V VD.
3. the power system transformer substation communication equipment power supply of the embedded direct current power module structure of band according to claim 1, it is characterized in that: described voltage conversion circuit 110V/220V DC input voitage being converted to 5V VD, be formed by connecting by mains switch S2, inductance L 2, diode VD2, electric capacity C2 and resistance RL2; Electric capacity C2 and resistance RL2 is in parallel, the negative pole of diode VD2 connects electric capacity C2 and resistance RL2 and one end of joint group by inductance L 2, the positive pole of 110V/220V direct-current input power supplying connects the negative pole of diode VD2 by mains switch S2, form the positive terminal of 5V VD; The positive pole of diode VD2 connects electric capacity C2 and resistance RL2 and the negative pole of the other end of joint group and 110V/220V direct-current input power supplying, forms the negative pole end of 5V VD.
4. the power system transformer substation communication equipment power supply of the embedded direct current power module structure of band according to claim 1, it is characterized in that: described voltage conversion circuit 110V/220V DC input voitage being converted to 3V VD, be formed by connecting by mains switch S3, inductance L 3, diode VD3, electric capacity C3 and resistance RL3; Electric capacity C3 and resistance RL3 is in parallel, the negative pole of diode VD3 connects electric capacity C3 and resistance RL3 and one end of joint group by inductance L 3, the positive pole of 110V/220V direct-current input power supplying connects the negative pole of diode VD3 by mains switch S3, form the positive terminal of 3V VD; The positive pole of diode VD3 connects electric capacity C3 and resistance RL3 and the negative pole of the other end of joint group and 110V/220V direct-current input power supplying, forms the negative pole end of 3V VD.
5. the power system transformer substation communication equipment power supply of the embedded direct current power module structure of band according to the arbitrary claim of Claims 1-4, is characterized in that: the input/output voltage characteristic index of described embedded DC power supplier (1) meets following expression:
1) input direct voltage=(85%-117.5%) Un, wherein, Un is the nominal voltage of transforming plant DC power-supply system, and when using 110V DC power system, Un is 110V; When using 220V DC power system, Un is 220V;
2) VD scope: 12V output end voltage=10.8V-13.2VDC, 5V output end voltage=4.5V-5.5VDC, 3V output end voltage=2.7V-3.3VDC.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510055651.5A CN104638910A (en) | 2015-02-03 | 2015-02-03 | Power system transformer substation communication equipment power supply with embedded direct-current power supply module structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510055651.5A CN104638910A (en) | 2015-02-03 | 2015-02-03 | Power system transformer substation communication equipment power supply with embedded direct-current power supply module structure |
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2015
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Address after: 510670 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510670 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant before: Guangdong Electric Power Design Institute of CEEC |
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