CN103607012A - Special direct-current input power supply for inverter - Google Patents
Special direct-current input power supply for inverter Download PDFInfo
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- CN103607012A CN103607012A CN201310605619.0A CN201310605619A CN103607012A CN 103607012 A CN103607012 A CN 103607012A CN 201310605619 A CN201310605619 A CN 201310605619A CN 103607012 A CN103607012 A CN 103607012A
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Abstract
The invention relates to a special direct-current input power supply for an inverter. The special direct-current input power supply for the inverter is characterized in that an independent operation manner with two segments of buses is adopted in the direct-current input power supply, and the two segments of buses are connected through an interconnection switch. A charging screen is arranged on each bus. Each charging screen comprises a microcomputer monitoring device, an alternating-current double-power-supply switching circuit, a high-frequency switching power supply module, a second diverter switch, a direct-current power supply output end and a first diverter switch, wherein the microcomputer monitoring device monitors the direct-current power supply output end, the output end of the alternating-current double-power-supply switching circuit, the output end of a high-frequency switching power supply and the input end of a storage battery pack in a signal sampling mode and a network communication mode and monitors a direct-current bus and a branch circuit insulator. According to the special direct-current input power supply for the inverter, the reliability of the direct-current input power supply of the inverter is improved, meanwhile, even floating charging can be automatically and periodically performed on the storage battery pack, other professional maintenance is conveniently performed, and the service life of a storage battery is greatly prolonged.
Description
Technical field
The present invention relates to a kind of power technology field, particularly a kind of inverter direct-current input power supplying.
Background technology
The former standby inverter system of adjusting adopts two 30KVA Qingdao prompt wound SW30K3-3 electric power special inverter parallel operation operational mode, and since putting into operation, runnability is good, from having alleviated to a great extent the load pressure of Flows below Shuikou Hydro-power Station supervisory control system inverter system.The year ends 2011 due to Bei Tiao center migration and former Flows below Shuikou Hydro-power Station supervisory control system inverter aging, Frequent Troubles, therefore considers transfer standby tune inverter system to Flows below Shuikou Hydro-power Station supervisory control system main website special inverter.But because the former standby direct-current input power supplying of 1, No. 2 inverters of inverter of adjusting is taken from middle control emergency lighting direct current system, do not take independently direct current to fill and hold device, and control emergency lighting direct current system load capacity is larger at present, it has been caused to certain load pressure, the Supply Security reliability of system also cannot obtain best guarantee, if as supervisory control system main website special inverter, its reliability obviously lacks, therefore must make improvements, to guarantee the safe operation of full factory supervisory control system.
Summary of the invention
In view of this, the object of this invention is to provide a kind of inverter direct-current input power supplying.
The present invention adopts following scheme to realize: a kind of inverter special DC input power, is characterized in that comprising: described direct-current input power supplying adopts two sections of bus independent operating modes, and described two sections of buses connect through interconnection switch; On described bus, be provided with one side charging screen; Described charging screen comprises:
One microprocessor-based monitoring device, its feeder ear is connected to described bus;
One exchanges dual power supply switching circuit, and it is controlled by described microprocessor-based monitoring device, realizes and switching between two AC power;
One high-frequency switching power supply module, converts the output AC of described interchange dual power supply switching circuit to direct current;
One second diverter switch, is controlled by described microprocessor-based monitoring device, realizes the switching between bus and a batteries;
One inverter direct-flow input end, it is connected with described bus, and
One first diverter switch, is controlled by described microprocessor-based monitoring device, for the switching between described bus and described batteries; Described microprocessor-based monitoring device is monitored described DC power supply output, the output that exchanges dual power supply switching circuit, high frequency switch power output and batteries input by the mode of signal sampling and network communication, and DC bus and branch road insulation are monitored.
In an embodiment of the present invention, should guarantee can paired running under two group storage battery group normal operating modes in the setting of described interconnection switch.
In an embodiment of the present invention, the output of described interchange dual power supply switching circuit is provided with lightning protection circuit.
The present invention has improved the reliability of inverter direct-current input power supplying; Simultaneously owing to can automatically regularly batteries being carried out to equal floating charge, and conveniently carry out other Specialization Maintenance, also make service lifetime of accumulator greatly improve.
Accompanying drawing explanation
Fig. 1 is that circuit theory of the present invention connects schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
The present invention selects two to fill the two micro computer monitoring high-frequency switch DC power system project organizations that hold (battery group capacity 150Ah), and every charging screen is by exchanging the compositions such as dual power supply switching circuit, DC charging device, microprocessor-based monitoring device (band distributed insulation monitoring function).DC charging device adopts two groups of 10A high-frequency switching power supply modules, and tool redundancy.System wiring mode adopts the operational mode of two sections of buses, one group of high-frequency switching power supply module of every section of bus belt, and by batteries independently, powered respectively, every section of each personal a set of insulation monitoring and warning device of bus, while normally using, two sections of buses work alone.Between two sections of buses, establish interconnection switch, the setting of this interconnection switch should guarantee under two group storage battery normal operating modes not can paired running, and can guarantee DC bus in normal operation and change in the operation of operational mode, forbids to throw off batteries.Direct current system control bus and power bus unite two into one, without dropping equipment.
Concrete, as shown in Figure 1, the present embodiment provides a kind of inverter special DC input power, it is characterized in that comprising: described direct-current input power supplying adopts two sections of bus independent operating modes, and described two sections of buses connect through interconnection switch; On described bus, be provided with one side charging screen; Described charging screen comprises:
One microprocessor-based monitoring device, its feeder ear is connected to described bus;
One exchanges dual power supply switching circuit, and it is controlled by described microprocessor-based monitoring device, realizes and switching between two AC power;
One high-frequency switching power supply module, converts the output AC of described interchange dual power supply switching circuit to direct current;
One second diverter switch, is controlled by described microprocessor-based monitoring device, realizes the switching between bus and a batteries;
One inverter direct-flow input end, it is connected with described bus, and
One first diverter switch, is controlled by described microprocessor-based monitoring device, for the switching between described bus and described batteries; Described microprocessor-based monitoring device is monitored described DC power supply output, the output that exchanges dual power supply switching circuit, high frequency switch power output and batteries input by the mode of signal sampling and network communication, and DC bus and branch road insulation are monitored.
In one embodiment of the invention, the output of described interchange dual power supply switching circuit is provided with lightning protection circuit.The present invention utilizes microprocessor-based monitoring device to monitor each port, and then controls each module work, wherein exchanges dual power supply switching circuit and can realize between two-way AC power and switching, and conscientiously guarantees the stable of system.And directly to inverter direct-flow input end, provide power supply and to this section (this bus) batteries floating charge by exchanging DC charging device that dual power supply switching circuit and high-frequency switching power supply module etc. form; When DC charging device is abnormal or exchange input side dead electricity, by batteries, to inverter direct-flow input end, provide power supply.If this section of DC charging device is wanted the work such as repair and maintenance of carrying out out of service, now bus can be joined to switch closes, and first and second diverter switch disconnects, and can carry out every debugging to charging screen, and inverter direct-flow input end provides power supply unaffected.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (3)
1. an inverter special DC input power, is characterized in that comprising: described direct-current input power supplying adopts two sections of bus independent operating modes, and described two sections of buses connect through interconnection switch; On described bus, be provided with one side charging screen; Described charging screen comprises:
One microprocessor-based monitoring device, its feeder ear is connected to described bus;
One exchanges dual power supply switching circuit, and it is controlled by described microprocessor-based monitoring device, realizes and switching between two AC power;
One high-frequency switching power supply module, converts the output AC of described interchange dual power supply switching circuit to direct current;
One second diverter switch, is controlled by described microprocessor-based monitoring device, realizes the switching between bus and a batteries;
One inverter direct-flow input end, it is connected with described bus, and
One first diverter switch, is controlled by described microprocessor-based monitoring device, for the switching between described bus and described batteries; Described microprocessor-based monitoring device is monitored described DC power supply output, the output that exchanges dual power supply switching circuit, high frequency switch power output and batteries input by the mode of signal sampling and network communication, and DC bus and branch road insulation are monitored.
2. inverter special DC input power according to claim 1, is characterized in that comprising: the setting of described interconnection switch should guarantee can paired running under two group storage battery group normal operating modes.
3. inverter special DC input power according to claim 1, is characterized in that: the output of described interchange dual power supply switching circuit is provided with lightning protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310605619.0A CN103607012A (en) | 2013-11-26 | 2013-11-26 | Special direct-current input power supply for inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310605619.0A CN103607012A (en) | 2013-11-26 | 2013-11-26 | Special direct-current input power supply for inverter |
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| Publication Number | Publication Date |
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| CN103607012A true CN103607012A (en) | 2014-02-26 |
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| CN201310605619.0A Pending CN103607012A (en) | 2013-11-26 | 2013-11-26 | Special direct-current input power supply for inverter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068631A (en) * | 2015-08-11 | 2015-11-18 | 成都亿信标准认证集团有限公司 | Project management system with reserved power supply |
| CN105068635A (en) * | 2015-08-11 | 2015-11-18 | 成都亿信标准认证集团有限公司 | Dual power supply type data server |
| CN105068634A (en) * | 2015-08-11 | 2015-11-18 | 成都亿信标准认证集团有限公司 | Data server having electric leakage protection function |
| CN105068633A (en) * | 2015-08-11 | 2015-11-18 | 成都亿信标准认证集团有限公司 | Data server having electric leakage alarming function |
| CN105762878A (en) * | 2016-04-12 | 2016-07-13 | 安徽明瑞智能科技股份有限公司 | High frequency switch direct current power source system |
| CN105896722A (en) * | 2016-04-13 | 2016-08-24 | 安徽智瑞电气有限公司 | Intelligent electric power inverter power source system |
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| CN102208832A (en) * | 2011-06-03 | 2011-10-05 | 四川省电力公司广元电业局 | Two-section DC operating power system |
| CN202634060U (en) * | 2012-04-19 | 2012-12-26 | 四川省电力公司广元电业局 | Duplex communication power supply system for transformer station |
| CN202721495U (en) * | 2012-06-21 | 2013-02-06 | 江苏省电力公司苏州供电公司 | Alternating-current and direct-current integrated uninterruptible power supply |
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| WO2005096467A1 (en) * | 2004-03-30 | 2005-10-13 | Alstom Technology Ltd | Electric installation for coupling a power supply system and a central direct current branch and method for operating an installation of this type |
| CN101594001A (en) * | 2009-07-04 | 2009-12-02 | 安徽省电力公司淮北供电公司 | Power supply device for transformer substation |
| CN102208832A (en) * | 2011-06-03 | 2011-10-05 | 四川省电力公司广元电业局 | Two-section DC operating power system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068631A (en) * | 2015-08-11 | 2015-11-18 | 成都亿信标准认证集团有限公司 | Project management system with reserved power supply |
| CN105068635A (en) * | 2015-08-11 | 2015-11-18 | 成都亿信标准认证集团有限公司 | Dual power supply type data server |
| CN105068634A (en) * | 2015-08-11 | 2015-11-18 | 成都亿信标准认证集团有限公司 | Data server having electric leakage protection function |
| CN105068633A (en) * | 2015-08-11 | 2015-11-18 | 成都亿信标准认证集团有限公司 | Data server having electric leakage alarming function |
| CN105762878A (en) * | 2016-04-12 | 2016-07-13 | 安徽明瑞智能科技股份有限公司 | High frequency switch direct current power source system |
| CN105896722A (en) * | 2016-04-13 | 2016-08-24 | 安徽智瑞电气有限公司 | Intelligent electric power inverter power source system |
| CN105896722B (en) * | 2016-04-13 | 2018-09-25 | 安徽智瑞电气有限公司 | Intelligent electric power inverter system |
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Application publication date: 20140226 |