CN104242443A - Power supply system of computer, display and printer in power generation and distribution field - Google Patents
Power supply system of computer, display and printer in power generation and distribution field Download PDFInfo
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- CN104242443A CN104242443A CN201310225578.2A CN201310225578A CN104242443A CN 104242443 A CN104242443 A CN 104242443A CN 201310225578 A CN201310225578 A CN 201310225578A CN 104242443 A CN104242443 A CN 104242443A
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Abstract
The invention provides a power supply system of a computer, a display and a printer in the power generation and distribution field; the voltage of the power supply system is the DC voltage outputted by a DC screen in an industrial site of the power generation and distribution field; nominal voltage of the power supply system is DC110V or DC220V; the power supply system powers up the computer, display and printer; the voltage of the power supply system is connected with power supply input ends of the computer, display and printer so as to serve as work power for the computer, display and the printer; the power supply system can improve power supply reliability of the computer, display and the printer, thus improving discharge work time of a storage battery device in the DC screen, saving engineering investment, and reducing equipment maintenance cost.
Description
Technical field
The present invention relates to generation distribution field, particularly relate to the electric power system of the computer of industry spot in generation distribution field, display, printer.
Background technology
At present, be applied to the computer of generation distribution field industry spot, display, printer, in order to ensure to power uninterruptedly, generally that the direct voltage (DC110V or DC220V) that direct current cabinet exports is reverse into alternating voltage through inverter (China is AC220V, there is AC100V in other country, AC110V, AC115V, AC120V, AC127V, AC200V, AC220V, AC230V, AC240V nine kinds of specifications) come to computer, display, printer provides power supply, or adopt ups power to come to computer, display, printer provides power supply, but, the inverter (or inversion system of ups power) that direct current cabinet configures, also the service efficiency of power supply is reduced to a certain extent, reduce the electric discharge operating time of batteries to store energy device, reduce the operational reliability of power supply unit (inverter or ups power), the computer in a kind of generation distribution field that the present invention proposes, display, the electric power system of printer, solve the problems referred to above.
Summary of the invention
The object of the present invention is to provide the electric power system of a kind of computer of generation distribution field, display, printer, this electric power system can improve the electric discharge operating time of the operational reliability of power supply unit, the manufacturing cost reducing power supply unit, raising batteries to store energy device, is the electric power system of a kind of computer of alternative generation distribution field, display, printer.
Along with the needs of TI industry development, the power supply that configures of (2013) computer, display, printer at present, have employed middle and high end switch power technology more and more, the design feature of this kind of middle and high end Switching Power Supply is: control and active pfc circuit with PWM, as shown in Figure 1: 221 ~ 233 is the symbol be electrically connected; AC power 101 is through transition filtering 102(transition filter circuit, Transient Filtering), rectification circuit 103, be transported to active PFC(Power Factor Correction, Active PFC) 104 circuit, voltage will again correct before switching tube 105, the voltage entering transformer 106 becomes rectangular wave, and the square-wave voltage exported through transformer 106 exports as stable DC voltage 111 after rectified current 107, filter circuit 108; The control signal that PWM control (pulse width modulation, Pulse Width Modulation) 110 exports is by driving transformer (or photoelectric coupling circuit) 109 control switch pipe 105.
This circuit structure described by Fig. 1 has made this Switching Power Supply possess can accept the condition of direct voltage as input voltage, can (as DC110V ~ DC240V) stable operation under certain DC input voitage.
The technical scheme of the electric power system of the computer in a kind of generation distribution field of the present invention, display, printer and being characterised in that:
1. an electric power system for the computer in generation distribution field, display, printer, the voltage of this electric power system is the direct voltage that the direct current cabinet in generation distribution field exports, and the nominal voltage of this electric power system is DC110V or DC220V;
2. be the electric power system of DC110V or DC220V by this nominal voltage, as the electric power system of computer, display, printer;
3. the nominal voltage this electric power system provided is the DC power supply of DC110V or DC220V, be linked into computer, display, printer power input as the working power of computer, display, printer;
4. the electric power system of the computer in a kind of generation distribution field described in, display, printer, involved computer, display, printer, refer to when generation distribution field does not adopt electric power system involved in the present invention, the AC power that thered is provided by ups power or inverter is provided, and this AC power is linked into computer, display, printer power input as computer, display, the printer of working power; Wherein, the nominal voltage of the AC power provided by ups power or inverter is AC220V in China, worldwide comprises AC100V, AC110V, AC115V, AC120V, AC127V, AC200V, AC220V, AC230V, AC240V nine kinds of specifications;
5. the electric power system of the computer in a kind of generation distribution field described in, display, printer, the voltage of this electric power system is the direct voltage of the direct current cabinet output in generation distribution field, the nominal voltage of electric power system is DC110V or DC220V, and this electric power system comprises and is at least the electric power system that a computer or a display or printer provide power supply.
This electric power system can improve computer, display, the power supply reliability of printer, the electric discharge operating time of improving batteries to store energy device, cost saving, reduction cost of equipment maintenance.
Accompanying drawing explanation
Fig. 1: control and the Switching Power Supply structured flowchart of active pfc circuit with PWM.
Fig. 2: the Supervisory Control System for Substation electric power system figure adopting inverter power supply.
Fig. 3: have employed Supervisory Control System for Substation electric power system figure of the present invention.
Embodiment
Fig. 3 provides a kind of embodiment of electric power system of the computer in a kind of generation distribution field of the present invention, display, printer, its object is to the DC power supply utilizing the batteries in the direct current cabinet of generation distribution field industry spot to provide, replace the AC power that the inverter (or ups power) of industry spot provides, improve computer, display, the power supply reliability of power supply unit of printer and operating efficiency, electric discharge operating time of raising batteries to store energy device, cost saving and cost of equipment maintenance.
In Fig. 2, Fig. 3:
230 ~ 237: the symbol representing electrical connection;
1: dotted line frame 1, represent the AC220V electric power system be made up of 401,402,403 alternating-current switchs and wire in Fig. 2;
2: dotted line frame 2, represent the DC220V electric power system be made up of 501,502,503 DC switchs and wire in Fig. 3;
11: the words identification representing " AC220V electric power system ";
12: direct current cabinet exchanges input 1, and input voltage is AC380V;
13: direct current cabinet exchanges input 2, and input voltage is AC380V;
14: the words identification representing " DC220V electric power system ";
301: computer;
302: display, computer display;
303: printer, for the result of computer being printed on the computer output equipment on associated media;
304: direct current cabinet;
305: complex automatic system protection observing and controlling screen;
306: inverter, DC220V voltage is reverse into the device of AC220V voltage;
401,402,403: alternating-current switch;
501,502,503: DC switch.
Direct current cabinet: direct current cabinet is for generation distribution field; for the control system of generation distribution equipment and protection system provide the device of power supply; direct current cabinet internal configurations has charging device and series-connected batteries, and direct current cabinet exports as direct voltage, has nominal voltage DC110V, DC220V two kinds of specifications.
The nominal voltage that direct current cabinet 304 described in the present embodiment exports is DC220V, have alternating current input power supplying 1 and alternating current input power supplying 2 totally twice AC380V AC power as the input power of direct current cabinet.
In Fig. 2, the output loop of direct current cabinet 304 comprises comprehensive automation protection observing and controlling screen 305, inverter 306; The DC220V voltage that direct current cabinet 304 exports by inverter 306 is reverse into AC220V and is powered to computer 301, display 302, printer 303 respectively by 401,402,403 alternating-current switchs.
In Fig. 3, eliminate the inverter 306 in Fig. 2, utilize the original circuit of Fig. 2, have employed the electric power system of the computer in a kind of generation distribution field of the present invention, display, printer, the DC-voltage supply system that employing is exported by direct current cabinet is computer, display, printer provide power supply, and the DC220V voltage exported by direct current cabinet 304 powers to respectively computer 301, display 302, printer 303 through 501,502,503 DC switchs.
In Fig. 3, owing to eliminating the inverter in Fig. 2, the DC220V exported by direct current cabinet powers directly to computer, display, printer, improve computer, display, printer power supply reliability, improve batteries to store energy device in direct current cabinet the electric discharge operating time, save construction investment, reduce cost of equipment maintenance.
Novelty of the present invention, creativeness, practicality.
Novelty: in generation distribution field, the direct voltage (nominal voltage is DC110V or DC220V) that direct current cabinet exports, without inverter, is linked into (use alternating voltage AC220V power) computer, display, printer power input as working power.Do not belong to the technical scheme of existing enforcement, there is novelty.
Creative: in generation distribution field, the direct voltage (nominal voltage is DC110V or DC220V) exported by direct current cabinet is without inverter, be linked into (use alternating voltage AC220V power) computer, display, printer power input as working power, the power supply reliability of computer, display, printer can be improved, improving the electric discharge operating time of batteries to store energy device in direct current cabinet, cost saving, reduction cost of equipment maintenance, is a kind of progress and innovation of technology.
Practicality: as described embodiments, utilize the DC power supply that the existing direct current cabinet in generation distribution field provides, the electric power system described in this invention can be realized easily, computer, display, the power supply reliability of printer, the electric discharge operating time of improving batteries to store energy device, cost saving, reduction cost of equipment maintenance can be improved.
Claims (2)
1. the electric power system of the computer in a kind of generation distribution field of the present invention, display, printer, is characterized in that:
An electric power system for the computer in generation distribution field, display, printer, the voltage of this electric power system is the direct voltage that the direct current cabinet in generation distribution field exports, and the nominal voltage of this electric power system is DC110V or DC220V; Be the electric power system of DC110V or DC220V by this nominal voltage, as the electric power system of computer, display, printer; The nominal voltage this electric power system provided is the DC power supply of DC110V or DC220V, be linked into computer, display, printer power input as the working power of computer, display, printer; The electric power system of the computer in described a kind of generation distribution field, display, printer, involved computer, display, printer, refer to when generation distribution field does not adopt electric power system involved in the present invention, the AC power that thered is provided by ups power or inverter is provided, and this AC power is linked into computer, display, printer power input as computer, display, the printer of working power; Wherein, the nominal voltage of the AC power provided by ups power or inverter is AC220V in China, worldwide comprises AC100V, AC110V, AC115V, AC120V, AC127V, AC200V, AC220V, AC230V, AC240V nine kinds of specifications.
2. the electric power system of the computer in a kind of generation distribution field according to right 1, display, printer, it is characterized in that: the voltage of this electric power system is the direct voltage of the direct current cabinet output in generation distribution field, the nominal voltage of electric power system is DC110V or DC220V, and this electric power system comprises and is at least the electric power system that a computer or a display or printer provide power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310225578.2A CN104242443A (en) | 2013-06-07 | 2013-06-07 | Power supply system of computer, display and printer in power generation and distribution field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310225578.2A CN104242443A (en) | 2013-06-07 | 2013-06-07 | Power supply system of computer, display and printer in power generation and distribution field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104242443A true CN104242443A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310225578.2A Pending CN104242443A (en) | 2013-06-07 | 2013-06-07 | Power supply system of computer, display and printer in power generation and distribution field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104242443A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105022596A (en) * | 2015-07-16 | 2015-11-04 | 安徽水利水电职业技术学院 | Off-line integrated intelligent photograph printing device and photograph printing method thereof |
| CN111443789A (en) * | 2020-04-07 | 2020-07-24 | 国家电网有限公司 | Computer and communication equipment direct current power supply method |
-
2013
- 2013-06-07 CN CN201310225578.2A patent/CN104242443A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105022596A (en) * | 2015-07-16 | 2015-11-04 | 安徽水利水电职业技术学院 | Off-line integrated intelligent photograph printing device and photograph printing method thereof |
| CN111443789A (en) * | 2020-04-07 | 2020-07-24 | 国家电网有限公司 | Computer and communication equipment direct current power supply method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |