CN203537047U - Uninterrupted power source system capable of conducting intelligent double-input power supply - Google Patents

Uninterrupted power source system capable of conducting intelligent double-input power supply Download PDF

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Publication number
CN203537047U
CN203537047U CN201320664111.3U CN201320664111U CN203537047U CN 203537047 U CN203537047 U CN 203537047U CN 201320664111 U CN201320664111 U CN 201320664111U CN 203537047 U CN203537047 U CN 203537047U
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input
connects
module
output
power supply
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CN201320664111.3U
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Chinese (zh)
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贾芳
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Guangdong East Power Co Ltd
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Guangdong East Power Co Ltd
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Abstract

The utility model discloses an uninterrupted power system capable of conducting intelligent double-input power supply. The uninterrupted power system comprises a power source input control unit and a UPS unit. The power source input control unit comprises a first input module, a second input module, an input switching module and a commercial power detecting module. The work state of a second power source is detected in real time by the commercial power detecting module, and power sources of an input end of the UPS unit are intelligently adjusted or switched. When the two alternating current power sources both work normally, the main working power source is controlled to supply power for a load. When the main working power source is damaged or cannot be normally operated, the standby working power source can achieve power supply in a replaced mode, the function of alternating power supply conducted by the main working power source and the standby working power source and the function of prior power supply of the main working power source are achieved, the probability of load power interruption is reduced, the power using cost is saved, and the reliability of power supply of a load device is improved.

Description

A kind of uninterruptible power system of dual input intelligent power supply
Technical field
The utility model relates to the technical field of uninterrupted power supply, relates in particular to a kind of uninterruptible power system of dual input intelligent power supply.
Background technology
UPS(Uninterruptible Power System/Uninterruptible Power Supply, uninterrupted power supply), it is a kind of energy storage device that contains, the uninterrupted power supply of the constant voltage constant frequency that the inverter of take is chief component, is mainly used in providing continual supply of electric power to single computer, computer network system or other power electronic equipment.When civil power is inputted when normal, UPS will be supplied to load to use after civil power voltage stabilizing, and UPS is now exactly an electric main pressurizer, and it also charges to self-contained battery simultaneously; When commercial power interruption, UPS is immediately by the electric energy of self-contained battery, and the square normal load of changing by inversion continues supply alternating current, makes load maintain normal work and protects load soft and hardware not to be damaged.
Along with user's improving constantly load supplying reliability, so the alternating current that has proposed to use civil power and generator to send out accesses respectively ATS(Automatic transfer switching equipment, automatic transfer switching electric appliance) in input, again the output of ATS is received to the input feeder ear of uninterrupted power supply, such using method has increased user installation cost and installing space, the contactor of ATS is easily subject to input service voltage influence, may cause rear end load power-off, and can not communicate with uninterrupted power supply.
When mains failure, ATS sends the dry contact signal of opening generator, the storage battery of uninterrupted power supply is always in saturation condition, storage battery only just can not pass through inverter powering load in the situation that there is no civil power and generator failure, generator starts after normal operation, if civil power has a power failure always, generator is powered to uninterrupted power supply (ups) Unity always, storage battery does not play the effect of standby, generator long-play, during operation, producing noise can affect near resident life, the waste gas of discharging pollutes the environment, this electric power system is not energy-conservation, in addition, the contactor of ATS change over switch is also easily subject to input service voltage influence, may cause rear end load power-off.
Utility model content
The purpose of this utility model is to propose a kind of uninterruptible power system of dual input intelligent power supply, solves above technical problem.
For reaching this object, the utility model by the following technical solutions:
A uninterruptible power system for dual input intelligent power supply, comprising: 1, a kind of uninterruptible power system of dual input intelligent power supply, it is characterized in that, and comprise power supply Input Control Element and UPS unit;
Described power supply Input Control Element comprises the first input module, the second input module, input handover module and civil power detection module;
The input of described civil power detection module connects the input of described the second input module, the output of described civil power detection module connects the second input of described input handover module, the input of described the first input module connects the first input end of described input handover module, the first output of described input handover module connects the control end of described the first input module, the second output of described input handover module connects the control end of described the second input module, the output of described the first input module and the output of described the second input module are connected respectively the input of described UPS unit,
During work, the input of the input of described the first input module and described the second input module is connected respectively the first power supply and second source; When described civil power detection module detects second source when working properly, the second output of described input handover module sends switch closure signals, the input of described the second input module and output are connected, by second source, provided input power for described UPS unit; When described civil power detection module detects second source operation irregularity or does not work; the first output of described input handover module sends switch closure signals; the input of described the first input module and output are connected, by the first power supply, provided input power for described UPS unit.
Preferably, described uninterruptible power system also comprises system control module and accessory power supply, described accessory power supply for provide described system control module working power and+VCC power supply;
Described input handover module comprises input pattern selector switch, and described input pattern selector switch comprises switch control part, the first moving contact, the first normally opened contact and the first normally-closed contact;
The power input of described system control module connects described accessory power supply, the unblocked level output of described system control module connects described the first moving contact, be used for providing unblocked level signal, described the first normally opened contact connects the control end of described the first input module, described the first normally-closed contact connects the control end of described the second input module, one end of described switch control part connects the output of described civil power detection module, another termination+VCC power supply of described switch control part;
During work, when described civil power detection module detects second source when working properly, described switch control part obtains electric, control described the first moving contact and described the first normally-closed contact connection, the control end of described the second input module receives described unblocked level signal, makes input and the output conducting of described the second input module; Otherwise, control described the first moving contact and described the first normally opened contact connection, make input and the output conducting of described the first input module.
Preferably, described UPS unit comprises UPS battery module; Described input handover module also comprises dry contact module; Between described power supply Input Control Element and the first power supply, be also connected with the first power control switch;
Described input pattern selector switch also comprises the second moving contact, the second normally opened contact and the second normally-closed contact; Described the first power control switch comprises opening end, shutdown side and common port;
Described the second moving contact connects described common port, described the second normally opened contact connects the second pin of described dry contact module, described the second normally-closed contact connects the first pin of described shutdown side and described dry contact module, and described opening end connects the 3rd pin of described dry contact module;
The information about power input of described system control module connects described UPS battery module, for obtaining the information about power of described UPS battery module, the dry contact signal output part of described system control module connects the control end of described dry contact module, for providing dry contact control signal according to information about power, control the second pin and the 3rd pin short circuit/disconnection of described dry contact module;
During work, if the second pin of described dry contact module and the 3rd pin short circuit, when described the second moving contact and described the second normally opened contact short circuit, described opening end and described common port short circuit, the first power control switch is closed, and the first power supply and described power supply Input Control Element are connected; If the second pin of described dry contact module and the disconnection of the 3rd pin or not short circuit, described opening end and described common port be short circuit not, and the first power supply and described power supply Input Control Element disconnect.
Preferably, described the first input module comprises the first power supply input control circuit, and described the second input module comprises second source input control circuit; Described the first power supply input control circuit comprises the first transformer, the first starting switch, the first rectification circuit, the second rectification circuit, the first reverse-blocking tetrode thyristor and the second reverse-blocking tetrode thyristor; Described second source input control circuit comprises the second transformer, the second starting switch, the 3rd rectification circuit, the 4th rectification circuit, the 3rd reverse-blocking tetrode thyristor and the 4th reverse-blocking tetrode thyristor;
Described accessory power supply is also for transformation input power is provided, and described transformation input power comprises transformation input live wire end and transformation input zero line side;
The first transformation input of described the first transformer connects described transformation input live wire end, the second transformation input of described the first transformer connects the first end of described the first starting switch, the second end of described the first starting switch connects described transformation input zero line side, and the control end of the first starting switch connects described the first normally opened contact;
The output of described the first transformer comprises the first transformation live wire output, the first transformation zero line output, the second transformation live wire output and the second transformation zero line output; Described the first transformation live wire output connects the first rectification input of described the first rectification circuit, described the first transformation zero line output connects the second rectification input of described the first rectification circuit, the first rectification output end of described the first rectification circuit connects the control end of described the first reverse-blocking tetrode thyristor and the live wire output of the first power supply, the first anode of described the first reverse-blocking tetrode thyristor connects the second rectification output end of described the first rectification circuit, and the second plate of described the first reverse-blocking tetrode thyristor connects the live wire input of described UPS unit; Described the second transformation live wire output connects the first rectification input of described the second rectification circuit, described the second transformation zero line output connects the second rectification input of described the second rectification circuit, the first rectification output end of described the second rectification circuit connects the control end of described the second reverse-blocking tetrode thyristor and the zero line output of the first power supply, the first anode of described the second reverse-blocking tetrode thyristor connects the second rectification output end of described the second rectification circuit, and the second plate of described the second reverse-blocking tetrode thyristor connects the zero line input of described UPS unit;
The first transformation input of described the second transformer connects described transformation input live wire end, the second transformation input of described the second transformer connects the first end of described the second starting switch, the second end of described the second starting switch connects described transformation input zero line side or ground connection, and the control end of the second starting switch connects described the first normally-closed contact;
The output of described the second transformer comprises the 3rd transformation live wire output, the 3rd transformation zero line output, the 4th transformation live wire output and the 4th transformation zero line output; Described the 3rd transformation live wire output connects the first rectification input of described the 3rd rectification circuit, described the 3rd transformation zero line output connects the second rectification input of described the 3rd rectification circuit, the first rectification output end of described the 3rd rectification circuit connects the control end of described the 3rd reverse-blocking tetrode thyristor and the live wire output of second source, the first anode of described the 3rd reverse-blocking tetrode thyristor connects described the 3rd transformation zero line output, and the second plate of described the 3rd reverse-blocking tetrode thyristor connects the live wire input of described UPS unit; Described the 4th transformation live wire output connects the first rectification input of described the 4th rectification circuit, described the 4th transformation zero line output connects the second rectification input of described the 4th rectification circuit, the first rectification output end of described the 4th rectification circuit connects the control end of described the 4th reverse-blocking tetrode thyristor and the zero line output of second source, the first anode of described the 4th reverse-blocking tetrode thyristor connects described the 4th transformation zero line output, and the second plate of described the 4th reverse-blocking tetrode thyristor connects the live wire input of described UPS unit;
During work, after described the first normally opened contact and the connection of described unblocked level signal end, the first end of described the first starting switch and the second end conducting, the first transformer is started working, through the first rectification circuit, with the second rectification circuit, the output that exchanges of the first transformer is converted to direct current output, for the control end of described the first reverse-blocking tetrode thyristor and described the second reverse-blocking tetrode thyristor provides high level signal, make described the first reverse-blocking tetrode thyristor and described the second reverse-blocking tetrode thyristor closed, the input power of UPS unit is provided by the first power supply;
After described the first normally-closed contact and the connection of described unblocked level output, the first end of described the second starting switch and the second end conducting, the second transformer is started working, through the 3rd rectification circuit, with the 4th rectification circuit, the output that exchanges of the second transformer is converted to direct current output, for the control end of described the 3rd reverse-blocking tetrode thyristor and described the 4th reverse-blocking tetrode thyristor provides high level signal, make described the 3rd reverse-blocking tetrode thyristor and described the 4th reverse-blocking tetrode thyristor closed, the input power of UPS unit is provided by second source.
Preferably, described the first rectification circuit comprises the first half-wave rectifying circuit and a RC filter circuit, described the second rectification circuit comprises the second half-wave rectifying circuit and the 2nd RC filter circuit, described the 3rd rectification circuit comprises the 3rd half-wave rectifying circuit and the 3rd RC filter circuit, and described the 4th rectification circuit comprises the 4th half-wave rectifying circuit and the 4th RC filter circuit;
The first half-wave rectifying circuit comprises the first rectifier diode and the first commutation capacitor, and a RC filter circuit comprises the first filter resistance and the first filter capacitor; The positive pole of described the first rectifier diode connects described the first transformation live wire output, the negative pole of described the first rectifier diode connects the first end of described the first commutation capacitor and the first end of the first filter resistance, the second end of described the first commutation capacitor connects the second end of described the first filter capacitor, and the first end of described the first filter capacitor connects the second end of described the first filter resistance and the control utmost point of the first reverse-blocking tetrode thyristor;
The second half-wave rectifying circuit comprises the second rectifier diode and the second commutation capacitor, and the 2nd RC filter circuit comprises the second filter resistance and the second filter capacitor; The positive pole of described the second rectifier diode connects described the second transformation live wire output, the negative pole of described the second rectifier diode connects the first end of described the second commutation capacitor and the first end of the second filter resistance, the second end of described the second commutation capacitor connects the second end of described the second filter capacitor, and the first end of described the second filter capacitor connects the second end of described the second filter resistance and the control utmost point of the second reverse-blocking tetrode thyristor;
The 3rd half-wave rectifying circuit comprises the 3rd rectifier diode and the 3rd commutation capacitor, and the 3rd RC filter circuit comprises the 3rd filter resistance and the 3rd filter capacitor; The positive pole of described the 3rd rectifier diode connects described the 3rd transformation live wire output, the negative pole of described the 3rd rectifier diode connects the first end of described the 3rd commutation capacitor and the first end of the 3rd filter resistance, the second end of described the 3rd commutation capacitor connects the second end of described the 3rd filter capacitor, and the first end of described the 3rd filter capacitor connects the second end of described the 3rd filter resistance and the control utmost point of the 3rd reverse-blocking tetrode thyristor;
The 4th half-wave rectifying circuit comprises the 4th rectifier diode and the 4th commutation capacitor, and the 4th RC filter circuit comprises the 4th filter resistance and the 4th filter capacitor; The positive pole of described the 4th rectifier diode connects described the 4th transformation live wire output, the negative pole of described the 4th rectifier diode connects the first end of described the 4th commutation capacitor and the first end of the 4th filter resistance, the second end of described the 4th commutation capacitor connects the second end of described the 4th filter capacitor, and the first end of described the 4th filter capacitor connects the second end of described the 4th filter resistance and the control utmost point of the 4th reverse-blocking tetrode thyristor.
Preferably, described civil power detection module comprises live wire sampling end, zero line sampling end and testing circuit;
Described testing circuit comprises diode D1, diode D2, diode D3, diode D4, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, voltage stabilizing didoe ZD1, optical coupler U1, capacitor C 1, capacitor C 2 and triode Q1;
The positive pole of diode D1 connects described live wire sampling end, the negative pole of diode D1 connects the positive pole of diode D2, the first end of the negative pole contact resistance R1 of diode D2, the first end of the second end contact resistance R2 of resistance R 1, the first end of the second end contact resistance R4 of resistance R 2, the first end of the second end contact resistance R3 of resistance R 4, the second end of resistance R 3 is the first end of contact resistance R5 respectively, the positive pole of the negative pole of voltage stabilizing didoe ZD1 and capacitor C 1, the positive pole of voltage stabilizing didoe ZD1 connects the positive pole of capacitor C 2, the negative pole of capacitor C 2 connects the negative pole of diode D3 and the positive input terminal of optical coupler U1, described zero line sampling end is the second end of contact resistance R5 respectively, the negative pole of capacitor C 1, the negative input end of the positive pole of diode D3 and optical coupler U1, the base stage of the high level output end connecting triode Q1 of optical coupler U1, the low level output end of optical coupler U1 and the grounded collector of triode Q1, the emitter of triode Q1 connects one end of the anodal and described switch control part of diode D4, the other end of the negative pole of diode D4 connect+VCC power supply and described switch control part.
Preferably, described input pattern selector switch adopts relay or contactor, and described switch control part is control coil.
Preferably, described UPS battery module comprises dc-battery and monitoring cell electricity quantity module, the input of described monitoring cell electricity quantity module connects described dc-battery, and the output of described monitoring cell electricity quantity module connects the information about power input of described system control module.
Preferably, described the first starting switch and the second starting switch are metal-oxide-semiconductor driving switch; Described the first reverse-blocking tetrode thyristor, described the second reverse-blocking tetrode thyristor, described the 3rd reverse-blocking tetrode thyristor and described the 4th reverse-blocking tetrode thyristor are bi-directional thyristor switch.
Preferably, described second source Wei Yi road civil power, is primary power supply, and described the first power supply is another road civil power or generator, is stand-by power supply power supply.
The beneficial effects of the utility model: the utility model detects the operating state of second source in real time by civil power detection module, the power supply of the input of the adjustment of intelligence or switching UPS unit, when two-way AC power is all normally worked, controlling main working power is that load is powered, when main working power is damaged or cannot normally be worked, standby working power can realize takes over power supply, when main working power is recovered, controlling the main working power of switching is that load is powered, realize the function of active and standby power supply in turn and the preferential power supply of main working power, reduced the possibility of load power-off, saved electric cost, improve the reliability of load equipment power supply.
Accompanying drawing explanation
Fig. 1 is the structural representation of uninterruptible power system of the dual input intelligent power supply of the first embodiment.
Fig. 2 is the circuit theory diagrams of the civil power detection module of the first embodiment.
Fig. 3 is the structure principle chart of the input handover module of the first embodiment.
Fig. 4 is the circuit theory diagrams of the first input module of the first embodiment.
Fig. 5 is the concrete application schematic diagram of uninterruptible power system of the dual input intelligent power supply of the second embodiment.
In figure: 101, power supply Input Control Element; 102, UPS unit, 103, the first power supply; 104, second source; 105, load equipment; 106, civil power detection module; 107, input handover module; 108, the first input module; 109, the second input mould; 110, system control module; 111, the first power control switch; 112, accessory power supply; 113, input pattern selector switch; 114, dry contact module; 115, uninterruptible power system.
Embodiment
Below in conjunction with accompanying drawing and by embodiment, further illustrate the technical solution of the utility model.Be understandable that, specific embodiment described herein is only for explaining the utility model, but not to restriction of the present utility model.It also should be noted that, for convenience of description, in accompanying drawing, only show the part relevant to the utility model but not full content.
Below in conjunction with accompanying drawing and by embodiment, further illustrate the technical solution of the utility model.
Embodiment mono-:
Please refer to Fig. 1, Fig. 1 is the structural representation of uninterruptible power system of the dual input intelligent power supply of the first embodiment, and the uninterruptible power system 115 that the present embodiment proposes, comprising: power supply Input Control Element 101 and UPS unit 102.
Wherein, power supply Input Control Element 101 comprises the first input module 108, the second input module 109, input handover module 107 and civil power detection module 106.
The input of civil power detection module 106 connects the input of the second input module 109, the output of civil power detection module 106 connects the second input of input handover module 107, the input of the first input module 108 connects the first input end of input handover module 107, the first output of input handover module 107 connects the control end of the first input module 108, the second output of input handover module 107 connects the control end of the second input module 109, the output of the output of the first input module 108 and the second input module 109 is connected in parallel, and connect respectively the input of UPS unit 102.
Please refer to Fig. 2, Fig. 2 is the circuit theory diagrams of the civil power detection module of the first embodiment.During work, the input of the input of the first input module 108 and the second input module 109 is connected respectively the first power supply 103 and second source 104; When civil power detection module 106 detects second source 104 when working properly, the second output of input handover module 107 sends switch closure signals, the input of the second input module 109 and output are connected, by second source 104, provided input power for UPS unit 102; When civil power detection module 106 detects second source 104 operation irregularities or does not work; the first output of input handover module 107 sends switch closure signals; the input of the first input module 108 and output are connected, by the first power supply 103, provided input power for UPS unit 102.
By civil power detection module 106, detect in real time the operating state of second source 104, the power supply of the input of the adjustment of intelligence or switching UPS unit 102, definition second source 104 is main working power, define the first power supply 103 for standby working power, when two-way AC power is all normally worked, controlling main working power is that load is powered, when main working power is damaged or cannot normally be worked, standby working power can realize takes over power supply, when main working power is recovered, controlling the main working power of switching is that load is powered, realize the function of active and standby power supply in turn and the preferential power supply of main working power, reduced the possibility of load equipment 105 power-off, saved electric cost, improve the reliability of load equipment 105 power supplies.
Concrete, uninterruptible power system 115 also comprises system control module 110 and accessory power supply 112, accessory power supply 112 for provide system control module 110 working power and+VCC power supply.
Please refer to Fig. 3, Fig. 3 is the structure principle chart of the input handover module of the first embodiment.Input handover module 107 comprises input pattern selector switch 113, and input pattern selector switch 113 comprises switch control part, the first moving contact, the first normally opened contact and the first normally-closed contact.
The power input of system control module 110 connects accessory power supply 112, the unblocked level output of system control module 110 connects the first moving contact, be used for providing unblocked level signal, the first normally opened contact connects the control end of the first input module 108, the first normally-closed contact connects the control end of the second input module 109, one end of switch control part connects the output of civil power detection module 106, another termination+VCC power supply of switch control part.
During work, when civil power detection module 106 detects second source 104 when working properly, this switch control part obtains electric, controlling the first moving contact and the first normally-closed contact connects, the control end of the second input module 109 receives unblocked level signal, makes input and the output conducting of the second input module 109; Otherwise, control the first moving contact and the first normally opened contact and connect, make input and the output conducting of the first input module 108.
More specifically, UPS unit 102 comprises UPS battery module; Input handover module 107 also comprises dry contact module 114; Between power supply Input Control Element 101 and the first power supply 103, be also connected with the first power control switch 111.
Input pattern selector switch 113 also comprises the second moving contact, the second normally opened contact and the second normally-closed contact; The first power control switch 111 comprises opening end, shutdown side and common port;
The second moving contact connects common port, and the second normally opened contact connects the second pin of dry contact module 114, the first pin of the second normally-closed contact connection closed end and dry contact module 114, and opening end connects the 3rd pin of dry contact module 114; Please refer to Fig. 3, the second pin is the COM end of dry contact module 114, and the first pin is the NC end of dry contact module 114, and the 3rd pin is the NO end of dry contact module 114.
The information about power input of system control module 110 connects UPS battery module, for obtaining the information about power of UPS battery module, the dry contact signal output part of system control module 110 connects the control end of dry contact module 114, for providing dry contact control signal according to information about power, control the second pin and the 3rd pin short circuit/disconnection of dry contact module 114.
During work, if the second pin and the 3rd pin short circuit, when the second moving contact and the second normally opened contact short circuit, opening end and common port short circuit, the first power control switch 111 closures, the first power supply 103 and power supply Input Control Element 101 are connected; If short circuit or the second moving contact and the second normally opened contact be not during short circuit for the second pin and the 3rd pin, opening end and common port be short circuit not, and the first power supply 103 and power supply Input Control Element 101 disconnect.
By controlling the closed and disconnected state of the first power control switch 111, can control the first power supply 103 and whether start working, when second source 104 faults or while not working, the system control module 110 of uninterruptible power system 115 is learnt the information about power of UPS battery module, and according to information about power, control the on off state of the first power supply 103 control switchs 111, while making the battery electric quantity of uninterruptible power system 115 sufficient, do not need the first power supply to power, but UPS battery module is load equipment 105 power supplies, when battery electric quantity is not enough, changeable the first power supply is that load equipment 105 is powered again, simultaneously for UPS battery module is charged, UPS battery module is without always in saturation condition, do not play the effect of standby, this electric power system is not energy-conservation, and battery is always high pressure storage configuration and also can affects battery life.
Concrete, please refer to Fig. 4, Fig. 4 is the circuit theory diagrams of the first input module of the first embodiment.The principle of the second input module 109 and the first input module 108 is similar.
The first input module 108 comprises the first power supply input control circuit, and the second input module 109 comprises second source input control circuit; The first power supply input control circuit comprises the first transformer, the first starting switch, the first rectification circuit, the second rectification circuit, the first reverse-blocking tetrode thyristor and the second reverse-blocking tetrode thyristor; Second source input control circuit comprises the second transformer, the second starting switch, the 3rd rectification circuit, the 4th rectification circuit, the 3rd reverse-blocking tetrode thyristor and the 4th reverse-blocking tetrode thyristor.
Accessory power supply 112 is also for transformation input power is provided, and transformation input power comprises transformation input live wire end and transformation input zero line side.
The first transformation input of the first transformer connects transformation input live wire end, the second transformation input of the first transformer connects the first end of the first starting switch, the second end of the first starting switch connects transformation input zero line side, and the control end of the first starting switch connects the first normally opened contact.
The output of the first transformer comprises the first transformation live wire output, the first transformation zero line output, the second transformation live wire output and the second transformation zero line output; The first transformation live wire output connects the first rectification input of the first rectification circuit, the first transformation zero line output connects the second rectification input of the first rectification circuit, the first rectification output end of the first rectification circuit connects the control end of the first reverse-blocking tetrode thyristor and the live wire output of the first power supply, the first anode of the first reverse-blocking tetrode thyristor connects the second rectification output end of the first rectification circuit, and the second plate of the first reverse-blocking tetrode thyristor connects the live wire input of UPS unit 102; The second transformation live wire output connects the first rectification input of the second rectification circuit, the second transformation zero line output connects the second rectification input of the second rectification circuit, the first rectification output end of the second rectification circuit connects the control end of the second reverse-blocking tetrode thyristor and the zero line output of the first power supply, the first anode of the second reverse-blocking tetrode thyristor connects the second rectification output end of the second rectification circuit, and the second plate of the second reverse-blocking tetrode thyristor connects the zero line input of UPS unit 102.
The first transformation input of the second transformer connects transformation input live wire end, the second transformation input of the second transformer connects the first end of the second starting switch, the second end of the second starting switch connects transformation input zero line side or ground connection, and the control end of the second starting switch connects the first normally-closed contact.
The output of the second transformer comprises the 3rd transformation live wire output, the 3rd transformation zero line output, the 4th transformation live wire output and the 4th transformation zero line output; The 3rd transformation live wire output connects the first rectification input of the 3rd rectification circuit, the 3rd transformation zero line output connects the second rectification input of the 3rd rectification circuit, the first rectification output end of the 3rd rectification circuit connects the control end of the 3rd reverse-blocking tetrode thyristor and the live wire output of second source, the first anode of the 3rd reverse-blocking tetrode thyristor connects the 3rd transformation zero line output, and the second plate of the 3rd reverse-blocking tetrode thyristor connects the live wire input of UPS unit 102; The 4th transformation live wire output connects the first rectification input of the 4th rectification circuit, the 4th transformation zero line output connects the second rectification input of the 4th rectification circuit, the first rectification output end of the 4th rectification circuit connects the control end of the 4th reverse-blocking tetrode thyristor and the zero line output of second source, the first anode of the 4th reverse-blocking tetrode thyristor connects the 4th transformation zero line output, and the second plate of the 4th reverse-blocking tetrode thyristor connects the live wire input of UPS unit 102.
During work, after the first normally opened contact and the connection of unblocked level signal end, the first end of the first starting switch and the second end conducting, the first transformer is started working, through the first rectification circuit, with the second rectification circuit, the output that exchanges of the first transformer is converted to direct current output, for the control end of the first reverse-blocking tetrode thyristor and the second reverse-blocking tetrode thyristor provides high level signal, make the first reverse-blocking tetrode thyristor and the second reverse-blocking tetrode thyristor closed, the input power of UPS unit 102 is provided by the first power supply 103.
After the first normally-closed contact and the connection of unblocked level output, the first end of the second starting switch and the second end conducting, the second transformer is started working, through the 3rd rectification circuit, with the 4th rectification circuit, the output that exchanges of the second transformer is converted to direct current output, for the control end of the 3rd reverse-blocking tetrode thyristor and the 4th reverse-blocking tetrode thyristor provides high level signal, make the 3rd reverse-blocking tetrode thyristor and the 4th reverse-blocking tetrode thyristor closed, the input power of UPS unit 102 is provided by second source 104.
The contactor of ATS change over switch is easily subject to input service voltage influence, may cause rear end load power-off, and can not communicate with uninterrupted power supply (ups) Unity, cannot realize intellectuality, the present embodiment adopts controllable silicon to replace ATS change over switch, by the closed and disconnected state of the testing result output unblocked level signal control thyristor switch to civil power detection module 106, and reverse-blocking tetrode thyristor can be opened fast, but must just can make its shutoff to the current over-zero by it, so turn-offing, reverse-blocking tetrode thyristor needs the time, thereby the power supply reliability while making the switching of the first power supply 103 and second source 104 increases, realize intelligent, high efficiency.
More specifically, the first rectification circuit comprises the first half-wave rectifying circuit and a RC filter circuit, the second rectification circuit comprises the second half-wave rectifying circuit and the 2nd RC filter circuit, the 3rd rectification circuit comprises the 3rd half-wave rectifying circuit and the 3rd RC filter circuit, and the 4th rectification circuit comprises the 4th half-wave rectifying circuit and the 4th RC filter circuit.
The first half-wave rectifying circuit comprises the first rectifier diode and the first commutation capacitor, and a RC filter circuit comprises the first filter resistance and the first filter capacitor; The positive pole of the first rectifier diode connects the first transformation live wire output, the negative pole of the first rectifier diode connects the first end of the first commutation capacitor and the first end of the first filter resistance, the second end of the first commutation capacitor connects the second end of the first filter capacitor, and the first end of the first filter capacitor connects the second end and first silicon controlled of the first filter resistance and controls the utmost point.
The second half-wave rectifying circuit comprises the second rectifier diode and the second commutation capacitor, and the 2nd RC filter circuit comprises the second filter resistance and the second filter capacitor; The positive pole of the second rectifier diode connects the second transformation live wire output, the negative pole of the second rectifier diode connects the first end of the second commutation capacitor and the first end of the second filter resistance, the second end of the second commutation capacitor connects the second end of the second filter capacitor, and the first end of the second filter capacitor connects the second end and second silicon controlled of the second filter resistance and controls the utmost point.
The 3rd half-wave rectifying circuit comprises the 3rd rectifier diode and the 3rd commutation capacitor, and the 3rd RC filter circuit comprises the 3rd filter resistance and the 3rd filter capacitor; The positive pole of the 3rd rectifier diode connects the 3rd transformation live wire output, the negative pole of the 3rd rectifier diode connects the first end of the 3rd commutation capacitor and the first end of the 3rd filter resistance, the second end of the 3rd commutation capacitor connects the second end of the 3rd filter capacitor, and the first end of the 3rd filter capacitor connects the second end and the 3rd silicon controlled of the 3rd filter resistance and controls the utmost point.
The 4th half-wave rectifying circuit comprises the 4th rectifier diode and the 4th commutation capacitor, and the 4th RC filter circuit comprises the 4th filter resistance and the 4th filter capacitor; The positive pole of the 4th rectifier diode connects the 4th transformation live wire output, the negative pole of the 4th rectifier diode connects the first end of the 4th commutation capacitor and the first end of the 4th filter resistance, the second end of the 4th commutation capacitor connects the second end of the 4th filter capacitor, and the first end of the 4th filter capacitor connects the second end and the 4th silicon controlled of the 4th filter resistance and controls the utmost point.
By rectification circuit, the interchange output of transformer output is converted to silicon controlled switch controlling signal, realizes closure/off-state of controlling reverse-blocking tetrode thyristor by unblocked level, and then realize the intelligent input control to UPS unit 102.
Concrete, please refer to Fig. 2, civil power detection module 106 comprises live wire sampling end, zero line sampling end and testing circuit.
Testing circuit comprises diode D1, diode D2, diode D3, diode D4, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, voltage stabilizing didoe ZD1, optical coupler U1, capacitor C 1, capacitor C 2 and triode Q1.
The positive pole of diode D1 connects live wire sampling end, the negative pole of diode D1 connects the positive pole of diode D2, the first end of the negative pole contact resistance R1 of diode D2, the first end of the second end contact resistance R2 of resistance R 1, the first end of the second end contact resistance R4 of resistance R 2, the first end of the second end contact resistance R3 of resistance R 4, the second end of resistance R 3 is the first end of contact resistance R5 respectively, the positive pole of the negative pole of voltage stabilizing didoe ZD1 and capacitor C 1, the positive pole of voltage stabilizing didoe ZD1 connects the positive pole of capacitor C 2, the negative pole of capacitor C 2 connects the negative pole of diode D3 and the positive input terminal of optical coupler U1, zero line sampling end is the second end of contact resistance R5 respectively, the negative pole of capacitor C 1, the negative input end of the positive pole of diode D3 and optical coupler U1, the base stage of the high level output end connecting triode Q1 of optical coupler U1, the low level output end of optical coupler U1 and the grounded collector of triode Q1, the emitter of triode Q1 connects the positive pole of diode D4 and one end of switch control part, the other end of the negative pole of diode D4 connect+VCC power supply and switch control part.
During work, live wire sampling end and zero line sampling end are connected respectively live wire and the zero line of second source 104, whether detect second source 104 normally works, if, second source 104 is through diode D1, after diode D2 diode rectification, through resistance R 1, resistance R 2, resistance R 3, resistance R 4 and resistance R 5 dividing potential drops, again by powering to after voltage stabilizing didoe ZD1 voltage stabilizing optical coupler U1, after optical coupler U1 conducting, the level of triode Q1 base stage is dragged down, triode Q1 conducting, switch control part obtains electric, make the unblocked level output of system control module 110 receive the control end of the second input module 109, second source 104 and UPS unit 102 are connected.Dry contact module 114 control the first power control switch 111 are closed simultaneously, and the first power supply 103 is not worked, and uninterruptible power system 115 is converted to second source powering mode, realizes civil power priority task function.
Concrete, the input pattern selector switch 113 of the present embodiment adopts relay or contactor, and switch control part is control coil.
Concrete, the UPS battery module in the present embodiment comprises dc-battery and monitoring cell electricity quantity module, the input of monitoring cell electricity quantity module connects dc-battery, the information about power input of the output connected system control module 110 of monitoring cell electricity quantity module.
Concrete, the first starting switch and the second starting switch are metal-oxide-semiconductor driving switch; The first controllable silicon, the second controllable silicon, the 3rd controllable silicon and the 4th controllable silicon are bidirectional triode thyristor.
Between the bidirectional triode thyristor first anode and second plate, no matter institute's making alive polarity is forward or oppositely, as long as control between the utmost point and the first anode, is added with the different trigger voltage of positive-negative polarity, just can triggering and conducting be low resistive state.Also about 1V of pressure drop between the first anode and second plate now.Once bidirectional triode thyristor conducting, even if lose trigger voltage, also can continue to keep conducting state.Only have and reduce when the first anode, second plate electric current, when being less than the polarity of voltage maintaining between electric current or the first anode and second plate and changing and there is no trigger voltage, bidirectional triode thyristor just blocks, now only have again add trigger voltage can conducting.
The second source Wei Yi road civil power of mentioning in the present embodiment, is primary power supply, and the first power supply is another road civil power or generator, is stand-by power supply power supply.
Embodiment bis-:
Please refer to Fig. 5, Fig. 5 is the concrete application schematic diagram of uninterruptible power system of the dual input intelligent power supply of the second embodiment.
The explanation of mainly the power supply Input Control Element 101 of uninterruptible power system 115 being correlated with in the first embodiment and for example, the present embodiment is the concrete application example of uninterruptible power system 115.The first power supply 103 in the present embodiment is generator, second source 104Wei mono-road civil power.
Uninterruptible power system 115 comprises: Input Control Element 101 and UPS unit 102.
Wherein, UPS unit 102 comprises a UPS filtration module, rectification module, a UPS inversion module, the 2nd UPS inversion module, the 2nd UPS filtration module, single-pass diode and static switch;
Generator and civil power are linked into respectively the input of power supply Input Control Element 101, the output of power supply Input Control Element 101 connects the input of a UPS filtration module, the output of the one UPS filtration module connects the input of rectification module, the output of rectification module connects respectively the negative pole of single-pass diode, the input of the input of the one UPS inversion module and the 2nd UPS inversion module, the output of the one UPS inversion module connects UPS battery module, the output of the 2nd UPS inversion module connects the input of the 2nd UPS filtration module, the output of the 2nd UPS filtration module connects the first end of static switch, the second end of static switch connects load equipment 105.
During work, civil power input is abnormal, and uninterruptible power system 115 passes through inverter powering load by UPS battery module.The low pressure warning value of preset UPS battery module and high pressure prompt value, when the DC Battery Discharge that detects UPS battery modules when uninterruptible power system 115 to the voltage of single battery is less than or equal to low pressure warning value, control module 110 is toward 114 adhesive signals of dry contact module, the first power control switch 111 starts opening end and common port passes through dry contact module 114 short circuits, and generator starts.
Connect above-mentioned operating state, after generator operation is normal, open the first input module 108.When uninterruptible power system 115 detects after the first input module 108 inputs normally, system control module 110 is opened static switch powering loads, also opens a UPS inversion module and charges to dc-battery simultaneously.
Connect above-mentioned operating state, the voltage that charges to the battery of single-unit when uninterruptible power system 115 detection batteries reaches high pressure prompt value and continues after 2 hours, system control module 110 sends release signal toward dry contact module 114, the opening end of the first power control switch 111 and common port disconnect, and generator starts.
In addition, uninterruptible power system 115 also comprises by-pass switch and maintenance bypass switch; For short circuit when UPS unit 102 fault or during municipal power failure to fix a breakdown.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.

Claims (10)

1. a uninterruptible power system for dual input intelligent power supply, is characterized in that, comprises power supply Input Control Element and UPS unit;
Described power supply Input Control Element comprises the first input module, the second input module, input handover module and civil power detection module;
The input of described civil power detection module connects the input of described the second input module, the output of described civil power detection module connects the second input of described input handover module, the input of described the first input module connects the first input end of described input handover module, the first output of described input handover module connects the control end of described the first input module, the second output of described input handover module connects the control end of described the second input module, the output of described the first input module and the output of described the second input module are connected respectively the input of described UPS unit,
During work, the input of the input of described the first input module and described the second input module is connected respectively the first power supply and second source; When described civil power detection module detects second source when working properly, the second output of described input handover module sends switch closure signals, the input of described the second input module and output are connected, by second source, provided input power for described UPS unit; When described civil power detection module detects second source operation irregularity or does not work; the first output of described input handover module sends switch closure signals; the input of described the first input module and output are connected, by the first power supply, provided input power for described UPS unit.
2. uninterruptible power system according to claim 1, is characterized in that, also comprises system control module and accessory power supply, described accessory power supply for provide described system control module working power and+VCC power supply;
Described input handover module comprises input pattern selector switch, and described input pattern selector switch comprises switch control part, the first moving contact, the first normally opened contact and the first normally-closed contact;
The power input of described system control module connects described accessory power supply, the unblocked level output of described system control module connects described the first moving contact, be used for providing unblocked level signal, described the first normally opened contact connects the control end of described the first input module, described the first normally-closed contact connects the control end of described the second input module, one end of described switch control part connects the output of described civil power detection module, another termination+VCC power supply of described switch control part;
During work, when described civil power detection module detects second source when working properly, described switch control part obtains electric, control described the first moving contact and described the first normally-closed contact connection, the control end of described the second input module receives described unblocked level signal, makes input and the output conducting of described the second input module; Otherwise, control described the first moving contact and described the first normally opened contact connection, make input and the output conducting of described the first input module.
3. uninterruptible power system according to claim 2, is characterized in that, described UPS unit comprises UPS battery module; Described input handover module also comprises dry contact module; Between described power supply Input Control Element and the first power supply, be also connected with the first power control switch;
Described input pattern selector switch also comprises the second moving contact, the second normally opened contact and the second normally-closed contact; Described the first power control switch comprises opening end, shutdown side and common port;
Described the second moving contact connects described common port, described the second normally opened contact connects the second pin of described dry contact module, described the second normally-closed contact connects the first pin of described shutdown side and described dry contact module, and described opening end connects the 3rd pin of described dry contact module;
The information about power input of described system control module connects described UPS battery module, for obtaining the information about power of described UPS battery module, the dry contact signal output part of described system control module connects the control end of described dry contact module, for providing dry contact control signal according to information about power, control the second pin and the 3rd pin short circuit/disconnection of described dry contact module;
During work, if the second pin of described dry contact module and the 3rd pin short circuit, when described the second moving contact and described the second normally opened contact short circuit, described opening end and described common port short circuit, the first power control switch is closed, and the first power supply and described power supply Input Control Element are connected; If the second pin of described dry contact module and the disconnection of the 3rd pin or not short circuit, described opening end and described common port be short circuit not, and the first power supply and described power supply Input Control Element disconnect.
4. uninterruptible power system according to claim 3, is characterized in that, described the first input module comprises the first power supply input control circuit, and described the second input module comprises second source input control circuit; Described the first power supply input control circuit comprises the first transformer, the first starting switch, the first rectification circuit, the second rectification circuit, the first reverse-blocking tetrode thyristor and the second reverse-blocking tetrode thyristor; Described second source input control circuit comprises the second transformer, the second starting switch, the 3rd rectification circuit, the 4th rectification circuit, the 3rd reverse-blocking tetrode thyristor and the 4th reverse-blocking tetrode thyristor;
Described accessory power supply is also for transformation input power is provided, and described transformation input power comprises transformation input live wire end and transformation input zero line side;
The first transformation input of described the first transformer connects described transformation input live wire end, the second transformation input of described the first transformer connects the first end of described the first starting switch, the second end of described the first starting switch connects described transformation input zero line side, and the control end of the first starting switch connects described the first normally opened contact;
The output of described the first transformer comprises the first transformation live wire output, the first transformation zero line output, the second transformation live wire output and the second transformation zero line output; Described the first transformation live wire output connects the first rectification input of described the first rectification circuit, described the first transformation zero line output connects the second rectification input of described the first rectification circuit, the first rectification output end of described the first rectification circuit connects the control end of described the first reverse-blocking tetrode thyristor and the live wire output of the first power supply, the first anode of described the first reverse-blocking tetrode thyristor connects the second rectification output end of described the first rectification circuit, and the second plate of described the first reverse-blocking tetrode thyristor connects the live wire input of described UPS unit; Described the second transformation live wire output connects the first rectification input of described the second rectification circuit, described the second transformation zero line output connects the second rectification input of described the second rectification circuit, the first rectification output end of described the second rectification circuit connects the control end of described the second reverse-blocking tetrode thyristor and the zero line output of the first power supply, the first anode of described the second reverse-blocking tetrode thyristor connects the second rectification output end of described the second rectification circuit, and the second plate of described the second reverse-blocking tetrode thyristor connects the zero line input of described UPS unit;
The first transformation input of described the second transformer connects described transformation input live wire end, the second transformation input of described the second transformer connects the first end of described the second starting switch, the second end of described the second starting switch connects described transformation input zero line side or ground connection, and the control end of the second starting switch connects described the first normally-closed contact;
The output of described the second transformer comprises the 3rd transformation live wire output, the 3rd transformation zero line output, the 4th transformation live wire output and the 4th transformation zero line output; Described the 3rd transformation live wire output connects the first rectification input of described the 3rd rectification circuit, described the 3rd transformation zero line output connects the second rectification input of described the 3rd rectification circuit, the first rectification output end of described the 3rd rectification circuit connects the control end of described the 3rd reverse-blocking tetrode thyristor and the live wire output of second source, the first anode of described the 3rd reverse-blocking tetrode thyristor connects described the 3rd transformation zero line output, and the second plate of described the 3rd reverse-blocking tetrode thyristor connects the live wire input of described UPS unit; Described the 4th transformation live wire output connects the first rectification input of described the 4th rectification circuit, described the 4th transformation zero line output connects the second rectification input of described the 4th rectification circuit, the first rectification output end of described the 4th rectification circuit connects the control end of described the 4th reverse-blocking tetrode thyristor and the zero line output of second source, the first anode of described the 4th reverse-blocking tetrode thyristor connects described the 4th transformation zero line output, and the second plate of described the 4th reverse-blocking tetrode thyristor connects the live wire input of described UPS unit;
During work, after described the first normally opened contact and the connection of described unblocked level signal end, the first end of described the first starting switch and the second end conducting, the first transformer is started working, through the first rectification circuit, with the second rectification circuit, the output that exchanges of the first transformer is converted to direct current output, for the control end of described the first reverse-blocking tetrode thyristor and described the second reverse-blocking tetrode thyristor provides high level signal, make described the first reverse-blocking tetrode thyristor and described the second reverse-blocking tetrode thyristor closed, the input power of UPS unit is provided by the first power supply;
After described the first normally-closed contact and the connection of described unblocked level output, the first end of described the second starting switch and the second end conducting, the second transformer is started working, through the 3rd rectification circuit, with the 4th rectification circuit, the output that exchanges of the second transformer is converted to direct current output, for the control end of described the 3rd reverse-blocking tetrode thyristor and described the 4th reverse-blocking tetrode thyristor provides high level signal, make described the 3rd reverse-blocking tetrode thyristor and described the 4th reverse-blocking tetrode thyristor closed, the input power of UPS unit is provided by second source.
5. uninterruptible power system according to claim 4, it is characterized in that, described the first rectification circuit comprises the first half-wave rectifying circuit and a RC filter circuit, described the second rectification circuit comprises the second half-wave rectifying circuit and the 2nd RC filter circuit, described the 3rd rectification circuit comprises the 3rd half-wave rectifying circuit and the 3rd RC filter circuit, and described the 4th rectification circuit comprises the 4th half-wave rectifying circuit and the 4th RC filter circuit;
The first half-wave rectifying circuit comprises the first rectifier diode and the first commutation capacitor, and a RC filter circuit comprises the first filter resistance and the first filter capacitor; The positive pole of described the first rectifier diode connects described the first transformation live wire output, the negative pole of described the first rectifier diode connects the first end of described the first commutation capacitor and the first end of the first filter resistance, the second end of described the first commutation capacitor connects the second end of described the first filter capacitor, and the first end of described the first filter capacitor connects the second end of described the first filter resistance and the control utmost point of the first reverse-blocking tetrode thyristor;
The second half-wave rectifying circuit comprises the second rectifier diode and the second commutation capacitor, and the 2nd RC filter circuit comprises the second filter resistance and the second filter capacitor; The positive pole of described the second rectifier diode connects described the second transformation live wire output, the negative pole of described the second rectifier diode connects the first end of described the second commutation capacitor and the first end of the second filter resistance, the second end of described the second commutation capacitor connects the second end of described the second filter capacitor, and the first end of described the second filter capacitor connects the second end of described the second filter resistance and the control utmost point of the second reverse-blocking tetrode thyristor;
The 3rd half-wave rectifying circuit comprises the 3rd rectifier diode and the 3rd commutation capacitor, and the 3rd RC filter circuit comprises the 3rd filter resistance and the 3rd filter capacitor; The positive pole of described the 3rd rectifier diode connects described the 3rd transformation live wire output, the negative pole of described the 3rd rectifier diode connects the first end of described the 3rd commutation capacitor and the first end of the 3rd filter resistance, the second end of described the 3rd commutation capacitor connects the second end of described the 3rd filter capacitor, and the first end of described the 3rd filter capacitor connects the second end of described the 3rd filter resistance and the control utmost point of the 3rd reverse-blocking tetrode thyristor;
The 4th half-wave rectifying circuit comprises the 4th rectifier diode and the 4th commutation capacitor, and the 4th RC filter circuit comprises the 4th filter resistance and the 4th filter capacitor; The positive pole of described the 4th rectifier diode connects described the 4th transformation live wire output, the negative pole of described the 4th rectifier diode connects the first end of described the 4th commutation capacitor and the first end of the 4th filter resistance, the second end of described the 4th commutation capacitor connects the second end of described the 4th filter capacitor, and the first end of described the 4th filter capacitor connects the second end of described the 4th filter resistance and the control utmost point of the 4th reverse-blocking tetrode thyristor.
6. uninterruptible power system according to claim 4, is characterized in that, described civil power detection module comprises live wire sampling end, zero line sampling end and testing circuit;
Described testing circuit comprises diode D1, diode D2, diode D3, diode D4, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, voltage stabilizing didoe ZD1, optical coupler U1, capacitor C 1, capacitor C 2 and triode Q1;
The positive pole of diode D1 connects described live wire sampling end, the negative pole of diode D1 connects the positive pole of diode D2, the first end of the negative pole contact resistance R1 of diode D2, the first end of the second end contact resistance R2 of resistance R 1, the first end of the second end contact resistance R4 of resistance R 2, the first end of the second end contact resistance R3 of resistance R 4, the second end of resistance R 3 is the first end of contact resistance R5 respectively, the positive pole of the negative pole of voltage stabilizing didoe ZD1 and capacitor C 1, the positive pole of voltage stabilizing didoe ZD1 connects the positive pole of capacitor C 2, the negative pole of capacitor C 2 connects the negative pole of diode D3 and the positive input terminal of optical coupler U1, described zero line sampling end is the second end of contact resistance R5 respectively, the negative pole of capacitor C 1, the negative input end of the positive pole of diode D3 and optical coupler U1, the base stage of the high level output end connecting triode Q1 of optical coupler U1, the low level output end of optical coupler U1 and the grounded collector of triode Q1, the emitter of triode Q1 connects one end of the anodal and described switch control part of diode D4, the other end of the negative pole of diode D4 connect+VCC power supply and described switch control part.
7. uninterruptible power system according to claim 2, is characterized in that, described input pattern selector switch adopts relay or contactor, and described switch control part is control coil.
8. uninterruptible power system according to claim 3, it is characterized in that, described UPS battery module comprises dc-battery and monitoring cell electricity quantity module, the input of described monitoring cell electricity quantity module connects described dc-battery, and the output of described monitoring cell electricity quantity module connects the information about power input of described system control module.
9. uninterruptible power system according to claim 4, is characterized in that, described the first starting switch and the second starting switch are metal-oxide-semiconductor driving switch; Described the first reverse-blocking tetrode thyristor, described the second reverse-blocking tetrode thyristor, described the 3rd reverse-blocking tetrode thyristor and described the 4th reverse-blocking tetrode thyristor are bi-directional thyristor switch.
10. according to the uninterruptible power system described in any one in claim 1-9, it is characterized in that, described second source Wei Yi road civil power, is primary power supply, and described the first power supply is another road civil power or generator, is stand-by power supply power supply.
CN201320664111.3U 2013-10-25 2013-10-25 Uninterrupted power source system capable of conducting intelligent double-input power supply Withdrawn - After Issue CN203537047U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103545911A (en) * 2013-10-25 2014-01-29 广东易事特电源股份有限公司 Uninterrupted power system capable of conducting double-input intelligent power supply
CN105610239A (en) * 2016-02-22 2016-05-25 黄焕珠 Automatic input device of emergency power supply
CN107332339A (en) * 2016-04-28 2017-11-07 鸿富锦精密电子(天津)有限公司 Power switching circuit and device
CN107615615A (en) * 2015-06-02 2018-01-19 东芝三菱电机产业系统株式会社 Uninterrupted power supply(ups)
CN107942775A (en) * 2017-10-18 2018-04-20 安徽蓝盾光电子股份有限公司 A kind of laser radar intelligent starting and loss protecting system
CN109687572A (en) * 2018-12-29 2019-04-26 国家电网有限公司 Electric power 48V direct current supply switching device
CN109687571A (en) * 2018-12-29 2019-04-26 国家电网有限公司 Electric power 48V direct current supply control system
TWI748578B (en) * 2020-07-24 2021-12-01 宏于電機有限公司 Dc power supply with three power systems

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103545911A (en) * 2013-10-25 2014-01-29 广东易事特电源股份有限公司 Uninterrupted power system capable of conducting double-input intelligent power supply
CN107615615A (en) * 2015-06-02 2018-01-19 东芝三菱电机产业系统株式会社 Uninterrupted power supply(ups)
CN105610239A (en) * 2016-02-22 2016-05-25 黄焕珠 Automatic input device of emergency power supply
CN107332339A (en) * 2016-04-28 2017-11-07 鸿富锦精密电子(天津)有限公司 Power switching circuit and device
CN107332339B (en) * 2016-04-28 2020-05-15 鸿富锦精密电子(天津)有限公司 Power supply switching circuit and device
CN107942775A (en) * 2017-10-18 2018-04-20 安徽蓝盾光电子股份有限公司 A kind of laser radar intelligent starting and loss protecting system
CN109687572A (en) * 2018-12-29 2019-04-26 国家电网有限公司 Electric power 48V direct current supply switching device
CN109687571A (en) * 2018-12-29 2019-04-26 国家电网有限公司 Electric power 48V direct current supply control system
CN109687571B (en) * 2018-12-29 2020-08-04 国家电网有限公司 48V direct current power supply control system for electric power
TWI748578B (en) * 2020-07-24 2021-12-01 宏于電機有限公司 Dc power supply with three power systems

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