WO2001050571A1 - Alimentation continue sans dissipation - Google Patents
Alimentation continue sans dissipation Download PDFInfo
- Publication number
- WO2001050571A1 WO2001050571A1 PCT/CN2000/000730 CN0000730W WO0150571A1 WO 2001050571 A1 WO2001050571 A1 WO 2001050571A1 CN 0000730 W CN0000730 W CN 0000730W WO 0150571 A1 WO0150571 A1 WO 0150571A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- voltage
- power supply
- power
- battery
- negative electrode
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Definitions
- the invention relates to an uninterruptible power supply without power consumption.
- full-power converter refers to a DC-AC or DC-DC converter whose power capacity is always greater than the output power. As for how large, it depends on the respective efficiency.
- the power converter (ie, inverter) of the ordinary AC uninterruptible power supply uses complex circuits and technologies, and its cost, volume, weight, and power consumption account for more than 99% of the entire machine.
- the stream voltage output by the uninterruptible power supply enters the computer and its peripherals, it immediately performs the opposite conversion and rectifies and filters the AC voltage into a DC voltage.
- What the computer and its peripherals really need is the DC component of the AC voltage, instead of the harmonics contained in it. Inverting DC to AC is actually superfluous.
- each harmonic contained in the AC voltage constitutes a real and potential threat to the computer and its peripherals, and is a major hidden danger to data security. Therefore, the optimal voltage for the computer and its peripherals should be DC voltage .
- the slow change of voltage with time does not have any adverse impact on the stable operation of the computer and its peripherals.
- the inverter-free uninterruptible power supply (ZL97241194.1) recently invented eliminates the inverter in ordinary AC uninterruptible power supplies and realizes DC power supply to computers and its peripherals, which is a great progress. Although it does not require a full power converter, it still needs to compensate the voltage to achieve a constant output DC voltage. If the fluctuation range of the input AC voltage is 20% of the output DC voltage, a power capacity of 20% of the full power is required. DC-DC power converter.
- the mission of the uninterruptible power supply is only: when the mains power is interrupted and the DC voltage in the user equipment drops to 75% of the rated value (usually 20 milliseconds), switch to battery power in time to ensure that the output voltage is not interrupted; when the mains voltage exceeds In the normal range (too low or too high), keep the output voltage within the normal range. Therefore, keeping the output voltage within the normal range is a necessary feature of an uninterruptible power supply, while keeping the output voltage constant is an unnecessary feature.
- the purpose of the present invention is to overcome the above-mentioned shortcomings, while retaining the necessary features and discarding the redundant features, completely removing the power converters of ordinary uninterruptible power supplies, so that the efficiency is close to 100%, and the cost, volume and weight are reduced to the original 100.
- the purpose of the present invention is achieved by the following technical scheme: a radio frequency filter, a rectifier filter, and a storage battery are provided.
- the rectifier filter adopts a half-controlled bridge circuit, and a detection circuit, a control circuit, and a trigger circuit are connected after the rectifier filter.
- the half-controlled rectifier bridge B1 is used as a full-wave rectifier. Its output DC voltage and the battery's DC voltage directly enter the user equipment without any power conversion.
- the DC voltage of the rectifier filter is directly output through the diode D4, and the DC voltage of the battery is directly output through the thyristor SCR3. Both voltages are about 300V and are applied to the output at the same time.
- a predetermined value for example, 176VAC
- SCR3 is turned on, and the battery voltage is added to the output terminal within 40 microseconds (the conductive time of the digable silicon is not greater than 40 microseconds).
- a predetermined value for example, 264VAC
- SCR1 and SCR2 are turned off, the rectifier filter has no output, and the high voltage is cut off.
- SCR3 is turned on, and the battery voltage is added to the output terminal. Therefore, no matter the input AC power failure, or too low or too high, the output voltage can be maintained at about 300V.
- Cost, volume and weight are 1% of ordinary uninterruptible power supply with the same power, which saves 99% of resources. It is a truly environmentally friendly product
- Figure 1 is a block diagram of a non-power uninterruptible power supply
- Figure 2 is a main circuit diagram, including a radio frequency filter, a rectifier filter and a battery;
- Figure 3 is a schematic diagram of the detection circuit
- Figure 4 is a schematic diagram of the control circuit.
- Figure 5 is a schematic diagram of the trigger circuit.
- the input voltage Vi is filtered by the RF filter to obtain a clean AC voltage. After this voltage is rectified by the rectifier filter, it becomes a DC voltage V0 that changes slowly with time, while providing load current and battery charging. Current.
- the detection circuit senses changes in the input voltage, output voltage, and battery voltage, and feeds information about these changes to the control circuit.
- the control circuit decodes to generate status displays, audible alarms, and trigger signals, and the trigger signals drive the corresponding controllable Silicon, control the input voltage Vi and the battery voltage E1 to switch on and off in a timely manner.
- the fuse Fl, the capacitors CI, C2, C3, C4, C5, and the inductors ID1, ID2, and ID3 constitute a radio frequency filter.
- the diodes D1 and D2 are connected in series, the thyristors SCR1 and SCR2 are connected in series, the battery El, the resistor R1, and the diode D3 are connected in series, the electrolytic capacitor C12 and the diode D4 are connected in series, and then the above-mentioned four series branches are connected in parallel, of which Dl, D2, SCR1, SCR2
- the positive pole is down and the positive poles of D3, D4, El, and C12 are up:
- the positive and negative poles of SCR3 are connected to the negative pole of C12 and the negative pole of El, respectively;
- the first two series branches form a half-controlled rectifier bridge B1, and the output voltage V0 of the whole machine passes through the resistor R3
- the fuse F2 is taken from the two ends of C12; the resistor R4, the
- the half-controlled rectifier B1 and another full-wave bridge rectifier filter circuit composed of a rectifier bridge B2, an electrolytic capacitor C13, and a resistor R2 are connected to the output end of the RF filter.
- the detection voltage VT is taken from the output of B2.
- the resistor R3 is connected to the negative terminal of the output circuit and provides a current sampling voltage A0.
- Four sets of detection voltages are output from Figure 2: output voltage + V0, -V0; battery voltage + E0, -E0; output current + A0, one AO; input voltage + VT, _VT.
- the detection circuit in Figure 3 consists of six detection channels with identical structures.
- the positive electrode of the optocoupler OPT1 light-emitting diode is connected to + VT through the resistor R7, and the negative electrode is connected to a VT through the potentiometer W1.
- the emitter of the OPT1 transistor is connected to the base of the transistor T1, and their emitters are respectively Grounded through resistors R6 and R5, and their collectors are connected to + 17V; pins 2 and 6 of the control circuit U1 are electrically connected Resistors R8 and R9 are connected to the emitter of the transistor T1, and grounded at the same time through potentiometers W2 and W3.
- Pin 1 of U1 is pressed to ground, pin 5 is connected to ground through capacitor C6, and pins 4 and 8 are connected to + 5V.
- Pin 3 generates the output signal VIH .
- the second detection channel is connected to the input signal VT, which consists of OPT2, T2, U2, W4, W5, W6, R10, Rll, R12, R13, R14, C7;
- the third detection channel is connected to the input signal V0, which is OPT3, T3 , U3, W7, W8, W9, R15, R16, R17, R18, R19, C8;
- the fourth detection channel is connected to the input signal A0, which is OPT4, T4, U4, W10, W11, W12, R20, R21, R22, R23, R24, C9;
- the fifth detection channel is connected to the input signal E0, and consists of OPT5, T5, U5, W13, W14, W15, R25, R26, 27, R28, R29, CIO;
- the sixth detection channel The input signal E0 is composed of OPT6, T6, U6W16, W17, W18, R30, R3, R32, R33, R34, and Cl l.
- the detection circuit generates six output signals from the four signals V0, E0, A0, and VT from the main circuit: input voltage is too high VIH, input voltage is too low VIL, output voltage is too high VOH, output current is too high AOH, battery voltage Low EL, battery voltage is too low ELL.
- the model of OPT1 is 4N26. Its light-emitting diodes are connected to input signals through R7 and W1. Some signals are high voltage and some signals are low voltage. Take different R1 to step down and then adjust W1 to adapt to input signals of different voltage levels.
- the current through the OPT1 LED is the optimal operating current.
- Transistor T1 is an emitter follower composed of 2SC733, and R4, which provides a level of current amplification.
- the type of control circuit U1 is NE555. Pins 2 and 6 are connected to the emitter of T1 at the same time.
- R8 and R9 are isolation resistors.
- the position of the adjusting arm of W2 corresponds to the set value of the input voltage "too high”
- the position of the adjusting arm of W2 corresponds to the set value of the input voltage "not high”
- adjusting W2 and W3 can change the output signal VIH corresponding to the input voltage VT "too high ", And” not high "turning point.
- the control circuit in Figure 4 consists of three-input AND gates U10A, U10B, U10C, two-input NAND gates U11A, U11B, two-input NOR gate U12A, two-input AND gate U7A, U7B, U7C, U7D, U8A, U8B, U8C,
- the NOT gate is composed of U9A, U9B, U9C, and U9D. It generates five trigger control signals TRIG1—TRIG5, and four control signals that light up the status indicator: the whole machine is OK, the battery is discharged EON, the output voltage is normal VOOK, and the input voltage is normal VIOK, a control signal that drives an audible alarm
- ALLOK ! (! AOH # VOH # VIL #! VIH disorder UE1L);
- the switching power supply SW1 provides the control voltage of the whole machine.
- the positive terminal of the input terminal is connected to + E0 through resistor R35, the negative terminal is directly connected to _E0, and the electrolytic capacitor C15 is connected between the positive and negative terminals.
- the output terminal has two voltages of + 5V and + 17V, and their common ground is GND.
- the trigger circuit in Figure 5 consists of five groups of circuits with the same structure. Each group of circuits has a switching power supply to provide independent + 17V DC voltage. The positive and negative terminals of these switching power supply inputs are connected to + E0 and E0 respectively.
- the first group of circuits triggers the SCR SCR1.
- the negative electrode of the switching power supply SW6 is connected to the negative electrode K of the SCR1.
- the positive electrode is connected to the collector of the optocoupler OPT11 triode and the collectors of the triodes T15 and T16.
- the anode of the OPT11 light-emitting diode passes
- the potentiometer W23 is grounded, and its positive electrode is connected to the control signal TRIG1 through a resistor R55.
- the emitter of the OPT11 transistor and the emitters of T15 and T16 are simultaneously connected to the control electrode G of the SCR SCR 1 through resistors R54, R53 and R52, respectively.
- the model of OPT11 is 4N26. Adjusting W23 can change the trigger current through SCR1. Triode T15,
- the models of the T16 are 2SC733 and 2SC5250 respectively. They and R53 and R52 respectively form an emitter follower, which provides two-stage current amplification.
- the second group of circuits consists of opto-coupled devices OPT10, transistors T13, T14, potentiometers W22, resistors R8, R49, R50, R51 and switching power supply SW5;
- the third group of circuits consists of optocoupled devices OPT9, transistors Tll, T12, potentiometers W21, resistors R44, R45, R46, R47 and switching power supply SW4;
- the fourth group of circuits consists of optocoupler OPT8, transistors T9, T10, potentiometer W20, resistors R40, R41, R42, R43 and switching power supply SW3;
- the five groups of circuits are composed of optocoupler OPT7, transistors T7, T8, potentiometer W19, resistors R36, R37, R38, R39, and switching power supply SW2.
- the trigger circuit generates five sets of trigger signals: SCR1 _G, SCR1 -K; SCR2—G, SCR2— K; SCR3 — G, SCR3-K; SCR4—G, SCR4—K; SCR5— G, SCR5—K; Triggering SCR SCR1 respectively
- the working process of the present invention is as follows:
- V0 is output.
- VD charges the battery El through the resistors R1 and D3, and the voltage of E1 is connected to the output terminal through SCR3.
- VIL 0.
- TRIG1, TRIG2 are high, and TRIG3 is low, which is the same state as before the power failure.
- the rectified DC voltage V0 is greater than the terminal voltage of battery E1, and SCR3 is turned off due to reverse bias.
- the battery voltage is normal and the output terminal is short-circuited. There are two cases:
- the positive pole of battery E1 is connected to the positive pole of half-controlled rectifier bridge B1.
- the negative pole of E1 is connected to the negative pole of B1 through resistor R1 and diode D3.
- the positive poles of Bl and El are directly connected to the output terminal.
- the negative pole of B1 is connected to the output terminal through diode D4.
- the negative electrode of E1 is connected to the output terminal through SCR SCR3.
- the purpose of using a half-controlled rectifier bridge is to quickly cut off the high voltage when the utility voltage is too high. If an ordinary rectifier bridge is used, a thyristor must be added outside the rectifier bridge, which doubles the power loss.
- SW1 in Figure 4 and SW2-SW6 in Figure 5 are all commercially available low-power switching power supplies. Their rated output power is within 10W. SW2-SW6 are slightly different depending on the power of the triggered thyristor. For small and medium-sized non-power-supply uninterruptible power supplies with an output power of less than 50KW, SW1-SW6 can be replaced by a switching power supply with 6 independent windings.
- the present invention completely retains the necessary characteristics of an uninterruptible power supply, and its main electrical device is as simple as a few diodes and thyristors. With a rectifier with a rated current of 100A, it can produce an output power of 25KW. Its efficacy is equivalent to A 30KVA ordinary uninterruptible power supply.
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Rectifiers (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU23423/01A AU2342301A (en) | 2000-01-03 | 2000-12-26 | Uninterrupted power supply without power loss |
US10/169,240 US6738276B2 (en) | 2000-01-03 | 2000-12-26 | Uninterrupted power supply without power loss |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN00114301.8 | 2000-01-03 | ||
CN00114301A CN1110116C (zh) | 2000-01-03 | 2000-01-03 | 无功耗不间断电源 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001050571A1 true WO2001050571A1 (fr) | 2001-07-12 |
Family
ID=4584003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2000/000730 WO2001050571A1 (fr) | 2000-01-03 | 2000-12-26 | Alimentation continue sans dissipation |
Country Status (4)
Country | Link |
---|---|
US (1) | US6738276B2 (zh) |
CN (1) | CN1110116C (zh) |
AU (1) | AU2342301A (zh) |
WO (1) | WO2001050571A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100359792C (zh) * | 2004-03-05 | 2008-01-02 | 力博特公司 | 检测不间断电源的整流器零线与电网零线之间的断线故障的方法 |
GB2517907B (en) * | 2013-08-09 | 2018-04-11 | Drayson Tech Europe Ltd | RF Energy Harvester |
US10374455B2 (en) | 2016-04-29 | 2019-08-06 | Hewlett Packard Enterprise Development Lp | Uninterruptible power supply including battery modules connected directly to direct current-alternating current inverter |
CN109038773B (zh) * | 2018-09-06 | 2023-11-17 | 濮阳市立圆汽车电器有限公司 | 一种铅酸电池充电器 |
DE102021110433A1 (de) | 2020-06-24 | 2021-12-30 | Samsung Electronics Co., Ltd. | Chipkarte |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07170677A (ja) * | 1993-12-14 | 1995-07-04 | Fuji Electric Co Ltd | 無停電電源装置の蓄電池充電回路 |
CN2322302Y (zh) * | 1997-08-20 | 1999-06-02 | 郁百超 | 无逆变器不间断电源 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4973896A (en) * | 1987-10-21 | 1990-11-27 | Toyo Densan Company, Ltd. | Automobile generator apparatus |
US5982645A (en) * | 1992-08-25 | 1999-11-09 | Square D Company | Power conversion and distribution system |
US5684686A (en) * | 1994-01-12 | 1997-11-04 | Deltec Electronics Corporation | Boost-input backed-up uninterruptible power supply |
US5751564A (en) * | 1994-08-10 | 1998-05-12 | Dien; Ghing-Hsin | Dual/multiple voltage level input switching power supply |
-
2000
- 2000-01-03 CN CN00114301A patent/CN1110116C/zh not_active Expired - Fee Related
- 2000-12-26 US US10/169,240 patent/US6738276B2/en not_active Expired - Fee Related
- 2000-12-26 AU AU23423/01A patent/AU2342301A/en not_active Abandoned
- 2000-12-26 WO PCT/CN2000/000730 patent/WO2001050571A1/zh active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07170677A (ja) * | 1993-12-14 | 1995-07-04 | Fuji Electric Co Ltd | 無停電電源装置の蓄電池充電回路 |
CN2322302Y (zh) * | 1997-08-20 | 1999-06-02 | 郁百超 | 无逆变器不间断电源 |
Also Published As
Publication number | Publication date |
---|---|
CN1271986A (zh) | 2000-11-01 |
US20030002308A1 (en) | 2003-01-02 |
AU2342301A (en) | 2001-07-16 |
US6738276B2 (en) | 2004-05-18 |
CN1110116C (zh) | 2003-05-28 |
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