CN105870940A - Static var generator device based on emergency power supply - Google Patents
Static var generator device based on emergency power supply Download PDFInfo
- Publication number
- CN105870940A CN105870940A CN201610334379.9A CN201610334379A CN105870940A CN 105870940 A CN105870940 A CN 105870940A CN 201610334379 A CN201610334379 A CN 201610334379A CN 105870940 A CN105870940 A CN 105870940A
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- China
- Prior art keywords
- inductance
- loop
- inverter
- power supply
- transformer
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Classifications
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- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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- 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
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The invention discloses a static var generator device based on an emergency power supply. The static var generator device comprises a static var generator and a storage battery, wherein a main circuit of the static var generator comprises a charger, a capacitor, an inverter, a transformer and an inductor, one end of the inductor is connected with three phases of a mains supply, the other end is connected with one end of the transformer, the other end of the transformer is connected with one end of the inverter, the other end of the inverter is connected with the storage battery, one end of the charger is connected with the three phases of the mains supply through a first input circuit breaker, and the other end of the charger is connected with a first loop and a second loop through two loops. According to the device, in circuit design, the storage battery is added to the direct current side of the static var generator, a switching device is added between the mains supply and a load, by changing the control mode of the inverter in the device and controlling on/off states of the switching device, on one hand, reactive compensation is realized, on the other hand, an emergency power supply role is played, and the utilization rate of the static var generator is increased.
Description
Technical field
The present invention relates to electricity field, be specifically related to a kind of static reacance generator device based on emergency power supply.
Background technology
Large-size asynchronous motor, transformer, electric welding machine, capacitive character light fixture, the electrical equipments such as inductive light fixture belong to perception or capacitive load, if the power factor of electrical equipment is relatively low, it is accomplished by consuming the more power of electrical network, the consumption of reactive power reduces the utilization rate of generating, transmission facility, add line loss and pressure drop, it is therefore necessary to perception or capacitive load are carried out reactive-load compensation.Static reacance generator is exactly the device that load carries out reactive-load compensation, is mainly used in being provided with the place of low-tension transformer and large-scale perception or capacitive apparatus side, all needs to install, to provide reactive-load compensation in the operating mode that particularly those power factors are relatively low.
The work general principle of static reacance generator SVG: with Three-phase high-power voltage source inverter as core, Three-phase high-power voltage source inverter typically uses three phase full bridge circuit, it is connected in parallel on electrical network through reactor, regulate amplitude and the phase place of bridge circuit AC output voltage in real time, make bridge circuit absorb reactive current when current lagging voltage or send reactive current when electric current leading voltage, thus realize the purpose of reactive-load compensation.
The work general principle of three phase emergency power source: with charger, batteries, transformer, voltage source inverter composition integrated apparatus, wherein three-phase voltage-type inverter is core, use three phase full bridge circuit, after municipal power failure or power-off, the direct current energy that batteries stores is converted into AC energy output, through transformer, reactor, the emergency electric power that supply load needs.
Above it can be seen that the static reacance generator only input compensation work when civil power is normal, when municipal power failure or power-off, static reacance generator cannot work.Static reacance generator and emergency power supply all use three-phase voltage type full-bridge circuit, therefore, do not change main circuit, as long as changing the control mode of inverter, it is possible to when municipal power failure or power-off, are used as emergency power supply by static reacance generator.
In order to improve the utilization rate of static reacance generator, people are badly in need of designing a kind of device and are combined with emergency power supply by static reacance complement generator.
Summary of the invention
For technical problem present in prior art, it is an object of the invention to provide a kind of static reacance generator device based on emergency power supply.
nullTo achieve these goals，The technical solution adopted in the present invention is: a kind of static reacance generator device based on emergency power supply，Including static reacance generator and batteries，The main circuit of described static reacance generator includes charger、Electric capacity、Inverter、Transformer、Inductance，Described inductance includes the first inductance、Second inductance and the 3rd inductance，First inductance、Second inductance and the 3rd inductance one end connect civil power three-phase respectively，And first inductance、Second inductance and the 3rd inductance other end are connected with transformer one end respectively，The transformer other end is connected with inverter one end，The described inverter other end passes through the first loop、Second servo loop is connected with batteries，Connect on described first loop and have the first direct current input fuse，Connect on described second servo loop and have the second direct current input fuse，Electric capacity two ends connect the first loop and second servo loop respectively，Described charger one end is connected with civil power three-phase by the first input breaker，The charger other end by two loops respectively with the first loop、Second servo loop is connected，And be connected and have fuse and diode on the loop being connected with the first loop.
Preferably, the both sides described civil power three-phase accessing this device are connected to the second input breaker and output breaker.
Preferably, on described civil power three-phase, connection has contactor.
Beneficial effects of the present invention shows:
This device is in circuit design, batteries is added on the DC side of static reacance generator, and increase switching device between civil power and load, by changing the control mode of inverter in device and controlling the opening/closing of switching device, on the one hand achieve reactive-load compensation, on the other hand also function to the effect of emergency service.Such circuit design, improves the utilization rate of static reacance generator.
Accompanying drawing explanation
Fig. 1 is the circuit connection diagram of static reacance generator device.
Detailed description of the invention
For further describing the present invention, below in conjunction with embodiment, it is described further.
nullA kind of static reacance generator device based on emergency power supply，Including static reacance generator and batteries，The main circuit of described static reacance generator includes charger、Electric capacity、Inverter、Transformer、Inductance，Described inductance includes the first inductance、Second inductance and the 3rd inductance，First inductance、Second inductance and the 3rd inductance one end connect civil power three-phase respectively，And first inductance、Second inductance and the 3rd inductance other end are connected with transformer one end respectively，The transformer other end is connected with inverter one end，The described inverter other end passes through the first loop、Second servo loop is connected with batteries，Connect on described first loop and have the first direct current input fuse，Connect on described second servo loop and have the second direct current input fuse，Electric capacity two ends connect the first loop and second servo loop respectively，Described charger one end is connected with civil power three-phase by the first input breaker，The charger other end by two loops respectively with the first loop、Second servo loop is connected，And be connected and have fuse and diode on the loop being connected with the first loop.
For further optimisation technique scheme, the both sides that described civil power three-phase accesses this device are connected to the second input breaker and output breaker.
For further optimisation technique scheme, described civil power three-phase connects and has contactor.
Refer to the circuit connection diagram of the static reacance generator device shown in Fig. 1.A, B, C are civil power three-phase, and QFB is the second input breaker, and QFA is the first input breaker, QF is output breaker, KM is contactor, and LKC is charger, and FU, FD are respectively fuse and diode, GB is batteries, RD1, RD2 are respectively the first direct current input fuse and the second direct current input fuse, and C is electric capacity, and UI is inverter, T is transformer, and L1, L2, L3 are respectively the first inductance, the second inductance and the 3rd inductance.
Whole device, when civil power is normal, uses as static reacance generator, when municipal power failure or power-off, uses as emergency power supply.Its course of work is: when civil power is normal, switching Guan Bi, and charger is to battery charging, and load is by mains-supplied, and electric capacity provides dc source to inverter, exports by changing inverter, load is carried out reactive-load compensation；When municipal power failure or power-off, switching off, the direct current energy of batteries is converted into AC energy to inverter power supply, inverter by batteries, it is provided that load Emergency use.
Above content is only the design example to the present invention and explanation; described specific embodiment is made various amendment or supplements or use similar mode to substitute by affiliated those skilled in the art; without departing from invention design or surmount scope defined in the claims, protection scope of the present invention all should be belonged to.
Claims (3)
- null1. a static reacance generator device based on emergency power supply，It is characterized in that，Including static reacance generator and batteries，The main circuit of described static reacance generator includes charger、Electric capacity、Inverter、Transformer、Inductance，Described inductance includes the first inductance、Second inductance and the 3rd inductance，First inductance、Second inductance and the 3rd inductance one end connect civil power three-phase respectively，And first inductance、Second inductance and the 3rd inductance other end are connected with transformer one end respectively，The transformer other end is connected with inverter one end，The described inverter other end passes through the first loop、Second servo loop is connected with batteries，Connect on described first loop and have the first direct current input fuse，Connect on described second servo loop and have the second direct current input fuse，Electric capacity two ends connect the first loop and second servo loop respectively，Described charger one end is connected with civil power three-phase by the first input breaker，The charger other end by two loops respectively with the first loop、Second servo loop is connected，And be connected and have fuse and diode on the loop being connected with the first loop.
- Static reacance generator device based on emergency power supply the most according to claim 1, it is characterised in that the both sides accessing this device on described civil power three-phase are connected to the second input breaker and output breaker.
- Static reacance generator device based on emergency power supply the most according to claim 1 and 2, it is characterised in that connect on described civil power three-phase and have contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334379.9A CN105870940A (en) | 2016-05-18 | 2016-05-18 | Static var generator device based on emergency power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334379.9A CN105870940A (en) | 2016-05-18 | 2016-05-18 | Static var generator device based on emergency power supply |
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| CN105870940A true CN105870940A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610334379.9A Pending CN105870940A (en) | 2016-05-18 | 2016-05-18 | Static var generator device based on emergency power supply |
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| CN (1) | CN105870940A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092279A (en) * | 2017-12-22 | 2018-05-29 | 国网山东省电力公司滨州供电公司 | A kind of device for comprehensively compensating reactive power harmonics of electric power system |
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| JP2005185042A (en) * | 2003-12-22 | 2005-07-07 | Toshiba Corp | Emergency power supply equipment |
| CN102496934A (en) * | 2011-11-30 | 2012-06-13 | 徐州中矿大传动与自动化有限公司 | Method for controlling power converter with UPS (Uninterrupted Power Supply) and APF (Active Power Filter) |
| CN203027153U (en) * | 2012-12-25 | 2013-06-26 | 珠海万力达电气股份有限公司 | Universal smart power grid power electronic device |
| CN203617778U (en) * | 2013-10-12 | 2014-05-28 | 合肥联信电源有限公司 | Multifunctional emergency power supply system |
| CN203617729U (en) * | 2013-10-12 | 2014-05-28 | 合肥联信电源有限公司 | Modularization emergency power supply unit |
| CN104201741A (en) * | 2014-08-28 | 2014-12-10 | 合肥联信电源有限公司 | Back type emergency power supply |
| CN105308826A (en) * | 2013-06-14 | 2016-02-03 | 通用电气公司 | Systems and methods for multi-use multi-mode ups |
-
2016
- 2016-05-18 CN CN201610334379.9A patent/CN105870940A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005185042A (en) * | 2003-12-22 | 2005-07-07 | Toshiba Corp | Emergency power supply equipment |
| CN102496934A (en) * | 2011-11-30 | 2012-06-13 | 徐州中矿大传动与自动化有限公司 | Method for controlling power converter with UPS (Uninterrupted Power Supply) and APF (Active Power Filter) |
| CN203027153U (en) * | 2012-12-25 | 2013-06-26 | 珠海万力达电气股份有限公司 | Universal smart power grid power electronic device |
| CN105308826A (en) * | 2013-06-14 | 2016-02-03 | 通用电气公司 | Systems and methods for multi-use multi-mode ups |
| CN203617778U (en) * | 2013-10-12 | 2014-05-28 | 合肥联信电源有限公司 | Multifunctional emergency power supply system |
| CN203617729U (en) * | 2013-10-12 | 2014-05-28 | 合肥联信电源有限公司 | Modularization emergency power supply unit |
| CN104201741A (en) * | 2014-08-28 | 2014-12-10 | 合肥联信电源有限公司 | Back type emergency power supply |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092279A (en) * | 2017-12-22 | 2018-05-29 | 国网山东省电力公司滨州供电公司 | A kind of device for comprehensively compensating reactive power harmonics of electric power system |
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Application publication date: 20160817 |
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