CN102214952B - Uninterruptible power supply system for avoiding electric arc generation and cabinet with same - Google Patents

Uninterruptible power supply system for avoiding electric arc generation and cabinet with same Download PDF

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Publication number
CN102214952B
CN102214952B CN 201010157466 CN201010157466A CN102214952B CN 102214952 B CN102214952 B CN 102214952B CN 201010157466 CN201010157466 CN 201010157466 CN 201010157466 A CN201010157466 A CN 201010157466A CN 102214952 B CN102214952 B CN 102214952B
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China
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power
output
power supply
unit
electric
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CN 201010157466
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Chinese (zh)
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CN102214952A (en
Inventor
赖渊芳
张瑛淞
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台达电子工业股份有限公司
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Publication of CN102214952A publication Critical patent/CN102214952A/en
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Abstract

The invention discloses an uninterruptible power supply system for avoiding electric arc generation and a cabinet with the same. The uninterruptible power supply system comprises a plurality of power supply units, a plurality of output units, a detection unit and a control unit, wherein the power supply units are used for converting input voltage into output voltage, the output units are respectively electrically connected with the output sides of the power supply units correspondingly to enable the power supply units to output the output voltage in parallel to a power supply output side and to prevent electric energy from returning to an output capacitor discharging unit from the power supply output side, the detecting unit is used for detecting the states of the power supply units, and the control unit is used for controlling the work of the power supply units and the output capacitor discharging unit and selectively controlling the output capacitor discharging unit to release the electric energy of the corresponding output capacitor unit according to the pre-separation state of the power supply units. When power supply modules are drawn out, no electric arc is generated in the uninterruptible power supply system disclosed by the invention so that a user cannot be electrically shocked by touching a connector by mistake.

Description

Prevent the uninterrupted power supply electric power system that electric arc produces and the rack with this system
Technical field
The present invention relates to a kind of electric supply system, relate in particular to a kind of uninterrupted power supply electric power system (uninterruptible power supply system, UPS system) that electric arc produces and rack with this electric power system of preventing.
Background technology
Along with the progress of computer science and technology and the fast development of internet, the service or the function that provide by the internet are also more and more many, therefore, the data center (data center) that is comprised of many computers or server (server) also increases fast.Yet this type of equipment of data center needs quality and the higher power supply of stability, in various supply power modes, uninterruptable power supply is except can guaranteeing that power supply can not cut off the power supply, more can provide the high-quality power supply, so uninterruptable power supply has become a kind of preferred plan that the high-quality power supply is provided now, and be widely used in network communication apparatus, data center and some important information equipment.
In order to prevent causing the uninterruptable power supply interruption of work because of power module (power module) fault, uninterruptable power supply can use a plurality of power modules output services in parallel now.Because the outlet side of power module has jumbo output capacitance, therefore traditional uninterruptable power supply is being changed or during the withdrawing power module, the output capacitance of power module also has remaining voltage, easily causes user's false touch connector and is shocked by electricity.
In order to raise the efficiency, some power modules can improve its output voltage values, 400V (volt) for example, because the voltage swing of output capacitance remnants is directly proportional with the output voltage values of power module, so traditional uninterruptable power supply can be because of the higher electric arc (arcing) that produces of magnitude of voltage of output capacitance remnants when replacing or withdrawing power module.The designer must select the higher and better connector of insulation of heatproof, to prevent from destroying because of the temporary high temperature that electric arc produces the insulation of connector, and each other short circuit and burn connector of the conductive pin that causes connector.Although, the designer select heatproof higher and the insulation better connector can certainly separate the problem that electric arc causes connector to burn, its cost of connector that but heatproof is higher and insulation is better is higher, and meeting is so that the manufacturing cost raising of each power module and whole uninterruptable power supply.In addition from the above, traditional uninterruptable power supply is when replacing or withdrawing power module, and the electric energy of output capacitance can only be let alone slowly self-discharge approach exhaustion, causes the waste of electric energy.
Therefore, how to develop a kind of uninterrupted power supply electric power system that electric arc produces that prevents of improving above-mentioned prior art defective, be in fact the present problem in the urgent need to address of correlative technology field technical staff.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of uninterrupted power supply electric power system that electric arc produces and rack with this electric power system of preventing, when power module is extracted, can not produce electric arc, can not cause user's false touch connector and shocked by electricity.The designer needn't select the connector that heatproof is higher and insulation is better, to reduce manufacturing cost.In addition, before power module is wanted to extract, the electric energy of output capacitance unit in the power module can also be recycled to energy-storage units, with the waste of effective minimizing electric energy.
For reaching above-mentioned purpose, of the present invention one than broad sense embodiment for a kind of uninterrupted power supply electric power system that prevents that electric arc from producing is provided, continual output voltage is provided, and it comprises: a plurality of power subsystems are converted to output voltage to the power supply outlet side of uninterrupted power supply electric power system with input voltage; A plurality of output capacitances unit, the respectively corresponding outlet side that is electrically connected at a plurality of power subsystems; The output capacitance discharge cell is electrically connected at a plurality of output capacitances unit; A plurality of output units, the corresponding outlet side that is electrically connected at a plurality of power subsystems makes this output voltage of a plurality of power subsystems output in parallel to the outlet side of powering respectively, and prevents that electric energy is back to the output capacitance discharge cell by the power supply outlet side; Detecting unit detects the state of a plurality of power subsystems; And control unit, be electrically connected at detecting unit, output capacitance discharge cell and a plurality of power subsystem, control a plurality of power subsystems and the work of output capacitance discharge cell; Wherein, control unit is optionally controlled the release electric energy of corresponding output capacitance unit of output capacitance discharge cell according to the wish released state of a plurality of power subsystems.
For reaching above-mentioned purpose, of the present invention another than broad sense embodiment for a kind of rack with the uninterrupted power supply electric power system that prevents that electric arc from producing is provided, comprise: the power supply outlet side provides continual output voltage; A plurality of accommodation spaces are placed a plurality of power modules, control module and/or battery module; Detecting unit detects the state of a plurality of power modules; And the output capacitance discharge cell, be electrically connected at the output capacitance unit of a plurality of power modules; Wherein, control module is optionally controlled the release electric energy of output capacitance unit corresponding to a plurality of power modules of output capacitance discharge cell according to the wish released state of a plurality of power modules.
Description of drawings
Fig. 1: be the circuit block diagram that prevents the uninterrupted power supply electric power system that electric arc produces of preferred embodiment of the present invention.
Fig. 2: be the structural representation that prevents the uninterrupted power supply electric power system that electric arc produces of preferred embodiment of the present invention.
Fig. 3: be the thin section circuit diagram that prevents the uninterrupted power supply electric power system that electric arc produces of preferred embodiment of the present invention.
Fig. 4: be the thin section circuit diagram that prevents the uninterrupted power supply electric power system that electric arc produces of another preferred embodiment of the present invention.
Wherein, description of reference numerals is as follows:
1: prevent the uninterrupted power supply electric power system that electric arc produces
1a: output 1b is just powering: negative power supply output
11a: the first power subsystem 11a1: positive output end
11a2: negative output terminal 11b: second source unit
11b1: positive output end 11b2: negative output terminal
12a: the first output capacitance unit 12b: the second output capacitance unit
13: output capacitance discharge cell 131: electric energy reclaims or the power consumption circuit
133: the second drive circuits of 132: the first drive circuits
14a: the first output unit 14b: the second output unit
15: energy-storage units 151: battery
152: charge-discharge circuit 16: detecting unit
17: control unit 100: rack
1011: the first power module 101a: the first locking device
The 1012: second source module 101b: second locking device
102: battery module 103: control module
2: the D of data center 1a: the first main diode
D 1b: diode D for the first time 2a: the second main diode
D 2b: diode C for the second time 1a: the first positive output electric capacity
C 1b: the first negative output capacitor C 2a: the second positive output electric capacity
C 2b: the second negative output electric capacity R a: the first energy consumption resistor
R b: the second energy consumption resistor Q 1a: the first positive switch
Q 2a: the second positive switch Q 1b: the first negative switch
Q 2b: the second negative switch S 1: the first status signal
S 2: the second status signal N: neutral end
V In: AC-input voltage Vo: high voltage direct current output voltage
V b: cell voltage
Embodiment
Some exemplary embodiments that embody feature ﹠ benefits of the present invention will be described in detail in the explanation of back segment.Be understood that the present invention can have at different execution modes various variations, its neither departing from the scope of the present invention, and explanation wherein and the accompanying drawing usefulness that ought explain in itself, but not in order to limit the present invention.
See also Fig. 1, it is the circuit block diagram that prevents the uninterrupted power supply electric power system that electric arc produces of preferred embodiment of the present invention.As shown in Figure 1, prevent that the uninterrupted power supply electric power system 1 that electric arc produces from receiving the AC-input voltage Vin (civil power) that electric power networks (not indicating among the figure) provides, and in the power supply outlet side of uninterrupted power supply electric power system 1 (the output 1a that just powering, negative power supply output 1b one side, together lower) provide continual high voltage direct current to export voltage Vo, 400V for example is to data center 2.
Prevent that the uninterrupted power supply electric power system 1 that electric arc produces from comprising: the first power subsystem 11a, second source unit 11b, the first output capacitance unit 12a, the second output capacitance unit 12b, output capacitance discharge cell 13, the first output unit 14a, the second output unit 14b, energy-storage units 15, detecting unit 16 and control unit 17, wherein, the first power subsystem 11a and second source unit 11b receive AC-input voltage Vin and are converted to high voltage direct current output voltage Vo to the power supply outlet side of uninterrupted power supply electric power system 1.The first output capacitance unit 12a and the second output capacitance unit 12b are connected in parallel in respectively outlet side (positive output end 11a1, negative output terminal 11a2, positive output end 11b1, negative output terminal 1,1b2 one side of the first power subsystem 11a and second source unit 11b to electrotropism, lower with), the first output capacitance unit 12a and the second output capacitance unit 12b can by a capacitance component or a plurality of capacitance component by electrical connect and/or be connected in parallel consist of.
In present embodiment, the first output capacitance unit 12a comprises: the first positive output capacitor C 1aWith the first negative output capacitor C 1b, the first positive output capacitor C wherein 1aBe electrically connected between the positive output end 11a1 and neutral end N (Neutral) of the first power subsystem 11a the first negative output capacitor C 1bBe electrically connected between the negative output terminal 11a2 and neutral end N of the first power subsystem 11a.Similarly, the second output capacitance unit 12b comprises: the second positive output capacitor C 2aWith the second negative output capacitor C 2b, the second positive output capacitor C wherein 2aBe electrically connected between the positive output end 11b1 and neutral end N of second source unit 11b the second negative output capacitor C 2bBe electrically connected between the negative output terminal 11b2 and neutral end N of second source unit 11b.
Output capacitance discharge cell 13 is electrically connected at the first output capacitance unit 12a, the second output capacitance unit 12b, energy-storage units 15 and control unit 17, in order to according to the wish released state of the first power subsystem 11a and the second source unit 11b electric energy of corresponding release the first power subsystem 11a or second source unit 11b optionally.
The first output unit 14a and the second output unit 14b be the corresponding outlet side that is electrically connected at the first power subsystem 11a and second source unit 11b respectively, make the first output unit 14a export voltage Vo to the power supply outlet side of uninterrupted power supply electric power system 1 by the first output unit 14a output in parallel with the second output unit 14b high voltage direct current respectively with the second output unit 14b, and when the first output capacitance unit 12a or the second output capacitance unit 12b discharge, prevent that electric energy is back to output capacitance discharge cell 13 by the power supply outlet side of uninterrupted power supply electric power system 1.
In present embodiment, the first output unit 14a comprises the first main diode D 1a(diode) with the diode D first time 1b, the first main diode D wherein 1aBe electrically connected between the positive output end 11a1 of just power output 1a and the first power subsystem 11a of uninterrupted power supply electric power system 1, and diode D for the first time 1bBe electrically connected between the negative output terminal 11a2 of the negative power supply output 1b of uninterrupted power supply electric power system 1 and the first power subsystem 11a.Similarly, the second output unit 14b comprises the second main diode D 2aWith the diode D second time 2b, the second main diode D wherein 2aBe electrically connected between the positive output end 11b1 of just power output 1a and second source unit 11b of uninterrupted power supply electric power system 1, and diode D for the second time 2bBe electrically connected between the negative output terminal 11b2 of the negative power supply output 1b of uninterrupted power supply electric power system 1 and second source unit 11b.
In some embodiment, the first main diode D of the first output unit 14a 1aWith the diode D first time 1bRectifier stack can be replaced by switch module (among the figure indicate), two carrier crystal pipe (Bipolar Junction Transistor for example, BJT), mos field effect transistor (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET), relay (Relay) or igbt (Insulated Gate Bipolar Transistor, IGBT), and the conducting of switch module or cut-off by control unit 17 control.When the non-wish released state of the first output unit 14a and normal operation, the switch module conducting of control unit 17 controls the first output unit 14a, when the first output unit 14a is the wish released state, the switch module cut-off of control unit 17 controls the first output unit 14a.In like manner, second of the second output unit 14b the main diode D 2aAnd diode D for the second time 2bRectifier stack can also be replaced by switch module (among the figure indicate).
Energy-storage units 15 electrically is connected in parallel with the power supply outlet side of uninterrupted power supply electric power system 1, in present embodiment, energy-storage units 15 comprises: battery 151 and charge-discharge circuit 152, wherein battery 151 electrically is connected in series with charge-discharge circuit 152, can be by one or more battery components by electrical series connection and/or be connected in parallel and consist of.Storing electricity (or the cell voltage V of and battery 151 normal as AC-input voltage Vin b) when not enough, control unit 17 can work in charge mode by control charge-discharge circuits 152, and battery 151 is charged with store electrical energy, otherwise, as AC-input voltage V InUnusual or when interrupting, control unit 17 can work in discharge mode by control charge-discharge circuits 152, make battery 151 discharge to continue to provide data center 2 required electric energy.
Detecting unit 16 is electrically connected with control unit 17, in order to detecting the state of the first power subsystem 11a and second source unit 11b, and corresponding generation the first status signal S 1With the second status signal S 2To control unit 17, make control unit 17 by the first status signal S 1With the second status signal S 2Judge the state of the first power subsystem 11a and second source unit 11b.
Control unit 17 is electrically connected at detecting unit 16, the first power subsystem 11a, second source unit 11b, output capacitance discharge cell 13 and energy-storage units 15, in order to controlling the first power subsystem 11a, second source unit 11b, output capacitance discharge cell 13 and energy-storage units 15 work, and according to the wish released state of the first power subsystem 11a and the second source unit 11b electric energy of corresponding release the first output capacitance unit 12a or the second output capacitance unit 12b optionally.Wherein, the release mode of electric energy of output capacitance discharge cell 13 can be used the power consumption assembly, resistance for example, with the power consumption of the first output capacitance unit 12a or the second output capacitance unit 12b totally, the electric energy of the first output capacitance unit 12a or the second output capacitance unit 12b can also be recycled to the battery 151 of energy-storage units 15.
For example, when the first output unit 14a and the non-wish released state of the second output unit 14b and normal operation, the first status signal S 1With the second status signal S 2For disabled state (disabled state), for example represent can the not release electric energy of the first output capacitance unit 12a or the second output capacitance unit 12b of output capacitance discharge cell 13 with electronegative potential.Before user's wish is changed the first power subsystem 11a, the first status signal S of detecting unit 16 meeting output enable states (enabled state) 1For example represent with high potential, make control unit 17 judge that the first power subsystem 11a is for wanting released state, and the release electric energy of the first output capacitance unit 12a of control output capacitance discharge cell 13 correspondences, therefore, the user continues when changing the first power subsystem 11a operation, does not have electric arc and produces.
See also Fig. 2 and cooperate Fig. 1, wherein Fig. 2 is the structural representation that prevents the uninterrupted power supply electric power system that electric arc produces of preferred embodiment of the present invention.As shown in Figure 2, prevent that the uninterrupted power supply electric power system 1 that electric arc produces from comprising: rack 100, the first power module 1011, second source module 1012, battery module 102 and control module 103.Wherein, rack 100 has a plurality of accommodation spaces, places separably the first power module 101a, second source module 101b, control module 103 and/or battery module 102.Therefore, the user can change the first power module 1011, second source module 1012, battery module 102 and control module 103 easily.
In present embodiment, the first power module 1011 comprises: the first power subsystem 11a, the first output capacitance unit 12a and the first locking device 101a; Second source module 1012 comprises: second source unit 11b, the second output capacitance unit 12b and the second locking device 101b; Battery module 102 comprises battery 151; Control module 103 comprises control unit 17; Rack 100 also comprises: output capacitance discharge cell 13, the first output unit 14a, the second output unit 14b, charge-discharge circuit 152 and detecting unit 16.In some embodiment, the first locking device 101a and the second locking device 101b are arranged on the rack 100.In some embodiment, rack 100 does not comprise the first output unit 14a and the second output unit 14b, and the first output unit 14a and the second output unit 14b are arranged at respectively in the first power module 1011 and the second source module 1012.
Before the user wants withdrawing the first power module 1011, need to utilize the first locking device 101a to loosen the locking of the first power module 1011 and rack 100, at this moment, detecting unit 16 meetings are in response to the first status signal S of the first locking device 101a output enable state of relaxation state 1, make control unit 17 judge the first power subsystem 11a for wanting released state, and the release electric energy of the first output capacitance unit 12a of control output capacitance discharge cell 13 correspondences.Therefore, when the user continues the first power module 1011 withdrawings are gone out rack 100 and change operation, can not produce electric arc because of the first output capacitance unit 12a remnants' high-voltage value.In like manner, before the user wanted withdrawing second source module 1012, control unit 17 can be according to the second status signal S of enabled state 2The release electric energy of the second output capacitance unit 12b of control output capacitance discharge cell 13 correspondences.Therefore, when the user continues second source module 1012 withdrawings are gone out rack 100 and change operation, can not produce electric arc.
See also Fig. 3 and cooperate Fig. 1, wherein Fig. 3 is the thin section circuit diagram that prevents the uninterrupted power supply electric power system that electric arc produces of preferred embodiment of the present invention.As shown in Figure 3, output capacitance discharge cell 13 comprises: the first positive switch Q 1a, the second positive switch Q 2a, the first negative switch Q 1b, the second negative switch Q 2b, electric energy reclaims or power consumption circuit 131, the first drive circuit 132 and the second drive circuit 133.Wherein, the first positive switch Q 1aBe electrically connected between the positive output end 11a1 and electric energy recovery or power consumption circuit 131 of the first power subsystem 11a the second positive switch Q 2aBe electrically connected between the positive output end 11b1 and electric energy recovery or power consumption circuit 131 of second source unit 11b the first negative switch Q 1bBe electrically connected between the negative output terminal 11a2 and electric energy recovery or power consumption circuit 131 of the first power subsystem 11a the second negative switch Q 2bBe electrically connected between the negative output terminal 11b2 and electric energy recovery or power consumption circuit 131 of second source unit 11b; The first drive circuit 132 is electrically connected at the first positive switch Q 1aAnd the second positive switch Q 2aControl end and control unit 17, in order to drive the first positive switch Q 1aOr the second positive switch Q 2aConducting or cut-off; The second drive circuit 133 is electrically connected at the first negative switch Q 1bAnd the second negative switch Q 2bControl end and control unit 17, in order to drive the first negative switch Q 1bOr the second negative switch Q 2bConducting or cut-off.
Before user's wish was changed the first power subsystem 11a, control unit 17 can be according to the first status signal S of enabled state 1Control the first positive switch Q 1aWith the first negative switch Q 1bConducting makes the first positive output capacitor C 1aWith the first negative output capacitor C 1bElectric energy respectively via the first positive switch Q 1aWith the first negative switch Q 1bBe sent to electric energy recovery or power consumption circuit 131, discharge.Similarly, before user's wish was changed second source unit 11b, control unit 17 can be according to the second status signal S of enabled state 2Control the second positive switch Q 2aWith the second negative switch Q 2bConducting makes the second positive output capacitor C 2aWith the second negative output capacitor C 2bElectric energy respectively via the second positive switch Q 2aWith the second negative switch Q 2bBe sent to electric energy recovery or power consumption circuit 131, discharge.In discharge process, electric energy reclaims or power consumption circuit 131 can be with the power consumption of the first output capacitance unit 12a or the second output capacitance unit 12b totally or be recycled to the battery 151 of energy-storage units 15.
See also Fig. 4 and cooperate Fig. 3, wherein Fig. 4 is the thin section circuit diagram that prevents the uninterrupted power supply electric power system that electric arc produces of another preferred embodiment of the present invention.As shown in Figure 4, in present embodiment, electric energy reclaims or power consumption circuit 131 comprises the first energy consumption resistor R aWith the second energy consumption resistor R b, the first energy consumption resistor R aBe electrically connected at the first positive switch Q 1a, the second positive switch Q 2aAnd neutral end N, in order to consume the first positive output capacitor C 1aWith the second positive output capacitor C 2aElectric energy.The second energy consumption resistor R bBe electrically connected at the first negative switch Q 1b, the second negative switch Q 2bAnd neutral end N, in order to consume the first negative output capacitor C 1bWith the second negative output capacitor C 2bElectric energy.
The first above-mentioned positive switch Q 1a, the second positive switch Q 2a, the first negative switch Q 1bAnd the second negative switch Q 2bBut but be not limited to relay, two carrier crystal pipe, mos field effect transistor or igbt.Control unit 17 can be but not limit by microprocessor (MicroController Unit, MCU) or digital signal processor (Digital Signal Processors, DSP) formation.
In sum, the uninterrupted power supply electric power system that prevents that electric arc from producing of the present invention, before power module is wanted to extract, can be with the electric energy discharge of output capacitance unit in the power module, make the output capacitance unit of power module not have remaining voltage, therefore when power module is extracted, can not produce electric arc, can not cause user's false touch connector and shocked by electricity.Owing to can not produce electric arc, the designer needn't select the connector that heatproof is higher and insulation is better, can reduce manufacturing cost.In addition, before power module is wanted to extract, the electric energy of output capacitance unit in the power module can also be recycled to energy-storage units, and effectively reduce the waste of electric energy.
Those skilled in the art should recognize change and the retouching of doing in the situation that does not break away from the scope and spirit of the present invention that the appended claim of the present invention discloses, all belong within the protection range of claim of the present invention.

Claims (13)

1. a uninterrupted power supply electric power system that prevents that electric arc from producing provides a continual output voltage, and it comprises:
A plurality of power subsystems are converted to this output voltage to a power supply outlet side of this uninterrupted power supply electric power system with an input voltage;
A plurality of output capacitances unit, the respectively corresponding outlet side that is electrically connected at these a plurality of power subsystems;
One output capacitance discharge cell is electrically connected at this a plurality of output capacitances unit;
A plurality of output units, the corresponding outlet side that is electrically connected at these a plurality of power subsystems makes this output voltage of these a plurality of power subsystems output in parallel to this outlet side of powering, and prevents that electric energy is back to this output capacitance discharge cell by this power supply outlet side respectively;
One detecting unit detects the state of these a plurality of power subsystems; And
One control unit is electrically connected at this detecting unit, this output capacitance discharge cell and this a plurality of power subsystems, controls the work of these a plurality of power subsystems and this output capacitance discharge cell;
Wherein, this control unit is optionally controlled the release electric energy of output capacitance unit of correspondence of this output capacitance discharge cell according to the wish released state of this a plurality of power subsystems.
2. the uninterrupted power supply electric power system that prevents that electric arc from producing as claimed in claim 1, it is characterized in that, this uninterrupted power supply electric power system also comprises an energy-storage units that is electrically connected at this power supply outlet side, wherein this output capacitance discharge cell is in discharge process, and the electric energy of this a plurality of output capacitances unit is by this output capacitance discharge cell consumption or be recycled to this energy-storage units.
3. the uninterrupted power supply electric power system that prevents that electric arc from producing as claimed in claim 2 is characterized in that this energy-storage units comprises:
One battery; And
One charge-discharge circuit is electrically connected with this battery, makes this battery charging and discharging;
Wherein, when storing electricity normal when this input voltage and this battery was not enough, this control unit was controlled this charge-discharge circuit and is worked in a charge mode, and this battery is charged with store electrical energy; Unusual or when interrupting, this control unit is controlled this charge-discharge circuit and worked in a discharge mode when this input voltage, it is uninterrupted to make this battery discharge to keep this output voltage.
4. the uninterrupted power supply electric power system that prevents that electric arc from producing as claimed in claim 1 is characterized in that this output capacitance discharge cell comprises:
One electric energy reclaims or the power consumption circuit; And
A plurality of positive switches are electrically connected at the recovery of positive output end corresponding to these a plurality of power subsystems and this electric energy or power consumption circuit;
Wherein, this control unit is optionally controlled this corresponding positive switch conduction according to the wish released state of these a plurality of power subsystems, makes the electric energy of corresponding output capacitance unit be sent to this electric energy recovery or power consumption circuit, discharges.
5. the uninterrupted power supply electric power system that prevents that electric arc from producing as claimed in claim 4 is characterized in that, this electric energy reclaims or the power consumption circuit comprises one first energy consumption resistor, is electrically connected at this a plurality of positive switches, consumes the electric energy of this a plurality of output capacitances unit.
6. the uninterrupted power supply electric power system that prevents that electric arc from producing as claimed in claim 4, it is characterized in that, this output capacitance discharge cell also comprises one first drive circuit, is electrically connected at control end and this control unit of these a plurality of positive switches, drives this a plurality of positive switch conductions or cut-off.
7. the uninterrupted power supply electric power system that prevents that electric arc from producing as claimed in claim 4, it is characterized in that, this output capacitance discharge cell also comprises a plurality of negative switches, be electrically connected at that negative output terminal corresponding to these a plurality of power subsystems and this electric energy reclaim or the power consumption circuit, and this control unit is controlled optionally according to the wish released state of this a plurality of power subsystems and corresponding should be born switch conduction.
8. the uninterrupted power supply electric power system that prevents that electric arc from producing as claimed in claim 7 is characterized in that, this electric energy reclaims or the power consumption circuit also comprises one second energy consumption resistor, is electrically connected at this a plurality of negative switches, consumes the electric energy of this a plurality of output capacitances unit.
9. the uninterrupted power supply electric power system that prevents that electric arc from producing as claimed in claim 1 is characterized in that these a plurality of output units are made of switch module and/or rectifier stack.
10. rack with the uninterrupted power supply electric power system that prevents that electric arc from producing comprises:
One power supply outlet side provides a continual output voltage;
A plurality of accommodation spaces are placed a plurality of power modules, a control module and/or a battery module;
One detecting unit detects the state of these a plurality of power modules; And
One output capacitance discharge cell is electrically connected at the output capacitance unit of these a plurality of power modules;
Wherein, this control module is optionally controlled the release electric energy of output capacitance unit corresponding to these a plurality of power modules of this output capacitance discharge cell according to the wish released state of these a plurality of power modules.
11. the rack with the uninterrupted power supply electric power system that prevents that electric arc from producing as claimed in claim 10, it is characterized in that, this rack also comprises a plurality of output units, correspondence is electrically connected at the outlet side of these a plurality of power modules respectively, make these output voltages of these a plurality of power modules output in parallel to this outlet side of powering, and when the output capacitance cell discharge of these a plurality of power modules, prevent that electric energy is back to the output capacitance unit of these a plurality of power modules by this power supply outlet side.
12. the rack with the uninterrupted power supply electric power system that prevents that electric arc from producing as claimed in claim 10, it is characterized in that, the output capacitance unit of these a plurality of power modules is in discharge process, and the electric energy of the output capacitance unit of these a plurality of power modules is by this output capacitance discharge cell consumption or be recycled to this battery module.
13. the rack with the uninterrupted power supply electric power system that prevents that electric arc from producing as claimed in claim 10 is characterized in that this output capacitance discharge cell comprises:
One electric energy reclaims or the power consumption circuit; And
A plurality of positive switches are electrically connected at the recovery of positive output end corresponding to these a plurality of power modules and this electric energy or power consumption circuit;
Wherein, this control module is optionally controlled positive switch conduction corresponding in described a plurality of positive switch according to the wish released state of these a plurality of power modules, make the electric energy of output capacitance unit corresponding to these a plurality of power modules be sent to this electric energy recovery or power consumption circuit, discharge.
CN 201010157466 2010-04-01 2010-04-01 Uninterruptible power supply system for avoiding electric arc generation and cabinet with same CN102214952B (en)

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CN103457259B (en) * 2013-09-10 2016-04-13 中国人民解放军海军工程大学 Middle straightening stream region distribution system
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