CN107872060A - A kind of AC stabilizer - Google Patents
A kind of AC stabilizer Download PDFInfo
- Publication number
- CN107872060A CN107872060A CN201610852443.2A CN201610852443A CN107872060A CN 107872060 A CN107872060 A CN 107872060A CN 201610852443 A CN201610852443 A CN 201610852443A CN 107872060 A CN107872060 A CN 107872060A
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- transformer
- switch
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
-
- 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
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1842—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
-
- 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 present invention relates to one to be used for supply voltage stable-pressure device.Many supply lines voltage is less than allowed band, while voltage pulsation is very big, and power network frequently occurs overload phenomenon, line loss is caused to significantly increase, qualification rate of powering is low, and significant damage is caused to electric equipment, or even the AC stabilizer for causing many electrical equipments can not use the present invention, power network supply voltage can effectively be stablized, with fast response time, cost is low, and reliability is high, it is easy to maintenance, the actual transmission line capability of power distribution network can be effectively improved.
Description
Technical field
The present invention relates to a device for stablizing power network supply voltage.
Background technology
It is not that the power consumption of residential customer significantly increases year by year with the improvement of people ' s living standards with the popularization of household electrical appliance
Long, but the distribution line such as factories and miness unit, residential quarters, shop renovates, speed relatively lags behind, and causes line end voltage
Far below allowed band, while voltage pulsation is very big, and power network generally frequently occurs overload phenomenon, washing machine, air conditioner, TV
The non-illumination load such as machine is difficult to normal work, and causes significant damage to electric equipment.Simultaneously as newly-increased electrical load is a large amount of
It is very big to reactive power demand using the slewings such as motor, compressor and power electronic equipment, and it is humorous to produce a large amount of high orders
Ripple electric current, thus cause low-voltage circuit loss to significantly increase, the power factor of whole power network is low, and mains ripple is very big.
It is on power distribution network, directly to install power supply additional to solve the problems, such as above-mentioned low-voltage and the big preferred plan of voltage pulsation
Voltage stabilizing device.For low voltage electric network install additional voltage self-checking device, supply voltage can be automatically adjusted in real time, stabilize it in
Standard value, idle, the raising actual transmission line capability of power distribution network can be directly provided to electrical equipment；It is safe for operation to improve supply transformer
Property；Significantly improve due to the abnormal conditions such as voltage flicker caused by reason such as high-tension line thunderbolt, instantaneous short circuit, overload,
Protect the safety of electrical equipment.
Chinese patent CN204360256U discloses a kind of contactless alternating current voltage stabilizer, and it uses multiwinding transformer and more
Road IGCT switching is switched to realize voltage stabilizing function.The technology to there is a grade pressure regulation, while for realize it is differential be unlikely to it is excessive, it is necessary to
Many roads IGCT switching switch, circuit is complicated, and cost is high, simultaneously because thyristor switch switch speed is slow, it is most fast to be only
10mS, the quick voltage fluctuation for power network are helpless.Especially, when it adjusts output voltage in a high position, if power network
Voltage occurs quickly to rise to, and its output voltage then can produce overvoltage because response speed is slow, endanger electrical equipment safety.
The content of the invention
The purpose of the present invention is a kind of AC stabilizer of design, can effectively stablize power network supply voltage, and it has response
Speed is fast, and cost is low, and reliability is high, easy to maintenance.
A kind of AC stabilizer designed by the present invention, including：
One AC power input, includes No.1 port 1 and No. two ports 2；
One transformer 5, one end of its primary side are connected with the No.1 port 1 that the AC power inputs, transformer primary side
Output end 10 of the other end as the present apparatus；
One single-phase inversion circuit 3, its AC are connected with one end of the vice-side winding of transformer 5, will for realizing
Direct current is changed into alternating current, and is coupled to primary side by the transformer 5, enters the regulation of line output voltage；
One DC filtering circuit 6, its positive and negative end are connected with the DC side of single-phase inversion circuit 3 respectively, its midpoint with
The other end connection of the vice-side winding of transformer 5, for realizing DC voltage filtering function；
One by-pass switch 4, it is connected with the primary side of the transformer 5, for apparatus of the present invention to be standby or guarantor during failure
Shield；
One AC voltage sensor 8, its input is connected with two ports of the AC power respectively, for detecting
The voltage of AC power；
One direct current voltage sensor circuit 7, its input is connected with the DC filtering circuit 6, for detecting direct current
Voltage；
One control unit 9, it is connected with the AC voltage sensor 8, direct current voltage sensor circuit 7, and gathers friendship
Flow supply voltage, d. c. voltage signal；Described control unit 9 is also connected with the single-phase inversion circuit 3, to control its work
State；Described control unit 9 also couples with the by-pass switch 4, to detect or control its break-make.
AC power input of the present invention, it is the input of single phase industrial frequence AC power.
Single-phase inversion circuit 3 of the present invention, it is to include the semiconductor power switch devices such as two or two groups IGBT
The bridge arm formed.
DC filtering circuit 6 of the present invention, it is to include two or two groups, by electrolytic capacitor or thin film capacitor
Or the circuit that ultracapacitor is connected into.
By-pass switch 4 of the present invention, is made up of hand switch or motor switch.
Control unit 9 of the present invention includes microcontroller (CPU) chip, and the microcontroller is stored with executable
Code and data, monitoring and control to the single-phase inversion circuit 3, by-pass switch 4 can be achieved.
A kind of AC stabilizer designed by the present invention, in addition to one group be parallel to the low of the transformer primary side winding
Bandpass filter circuit 15, the low-pass filter circuit include ac filter capacitor, for filtering out the electricity of the primary side winding of transformer 5
Flow harmonic wave.
A kind of AC stabilizer designed by the present invention, in addition to one group be connected to the single-phase inversion circuit 3 and exchange
Side and the low-pass filter circuit 13 of the vice-side winding of transformer 5, the low-pass filter circuit include ac filter capacitor and filter
Ripple inductance, for filtering out the current harmonics of the vice-side winding of transformer 5.
A kind of AC stabilizer designed by the present invention, in addition to one group of electricity for being parallel to the transformer secondary winding
Sub- by-pass switch 12, the electronic bypass switch be by two antiparallel IGCTs or by a diode single-phase full bridge and
One thyristor groups is into the electronic bypass switch 12 is controlled by described control unit 9, Quick side during for present apparatus failure
Road.
Brief description of the drawings
Fig. 1 is a kind of electrical structure diagram of AC stabilizer of the present invention.
Fig. 2 is a kind of one embodiment figure of AC stabilizer of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, a kind of AC stabilizer implementation of the present invention and the course of work is discussed in detail.
As shown in figure 1, it is the electrical structure diagram of AC stabilizer of the present invention.Wherein AC power by No.1 port 1 and
No. two ports 2 are accessed, after primary side one end of No.1 port and transformer 5 is connected in series, by the primary side other end conduct of transformer 5
The output of apparatus of the present invention.By-pass switch 4 in parallel between 5 primary side of transformer, two ports, for apparatus of the present invention to be standby or failure
When bypass.
Vice-side winding one end of transformer 5 is connected with single-phase inversion circuit 3, the midpoint of the other end and DC filtering circuit 6
Connection, the work of single-phase inversion circuit 3 is controlled by control unit 9, it is exported PWM voltage, puts on the pair of transformer 5
Side winding, the voltage are connected after the transformation of transformer 5 with No.1 port voltage, and a total voltage is produced in output port 10, from
And play a part of adjusting regulated output voltage.
Control unit 9 is connected with single-phase inversion circuit 3, the switching state of control wherein semiconductor switch device, is examined simultaneously
Whether working properly survey its.Control unit 9 is connected with AC voltage sensor 8, direct current voltage sensor circuit 7 simultaneously, is used for
Detect the input ac power voltage, the voltage of DC filtering circuit 6 of apparatus of the present invention.
Fig. 2 is another implementation illustration of AC stabilizer of the present invention, and low-pass filter circuit 15 is parallel to transformer 5
Primary side winding, for filtering out the dither current of transformer primary side.The secondary of electronic bypass switch 12 and transformer 5 in Fig. 2
Winding parallel, quick bypass when being broken down for apparatus of the present invention inverter circuit.Low-pass filter circuit 13 is one in Fig. 2
LC filter circuits, it is connected between the output of single-phase inversion circuit 3 and the vice-side winding of transformer 5, for filtering out dress of the present invention
Put pulsating current caused by inverter circuit.Single-phase inversion circuit 3 is used as semiconductor switch device using IGBT 14 in Fig. 2.
Claims (9)
- A kind of 1. AC stabilizer, it is characterised in that：It includes：One AC power input, includes No.1 port and No. two ports；One transformer, one end of its primary side are connected with the No.1 port that the AC power inputs, transformer primary side it is another Hold the output end as the present apparatus；One single-phase inversion circuit, its AC are connected with one end of the transformer secondary winding, for realizing direct current It is changed into alternating current, and by described transformer coupled to primary side, enters the regulation of line output voltage；One DC filtering circuit, its positive and negative end are connected with the single-phase inversion circuit direct side respectively, its midpoint and the change The other end connection of depressor vice-side winding, for realizing DC voltage filtering function；One by-pass switch, is connected with the primary side of the transformer, for apparatus of the present invention to be standby or protection during failure；One AC voltage sensor, two ports of its input respectively with AC power input are connected, for detecting The voltage of AC power；One direct current voltage sensor circuit, its input is connected with the DC filtering circuit, for detecting DC voltage；One control unit, it is connected with the AC voltage sensor, direct current voltage sensor circuit, and gathers AC power electricity Pressure, d. c. voltage signal；Described control unit is also connected with the single-phase inversion circuit, to control its working condition；It is described Control unit also couples with the by-pass switch, to detect or control its break-make.
- A kind of 2. AC stabilizer according to claim 1, it is characterised in that：Described AC power input, is single Phase power frequency AC inputs.
- A kind of 3. AC stabilizer according to claim 1, it is characterised in that：Described single-phase inversion circuit, it is bag The bridge arm formed containing semiconductor power switch devices such as two or two groups IGBT.
- A kind of 4. AC stabilizer according to claim 1, it is characterised in that：Described DC filtering circuit, it is bag Contain two or two groups, the circuit that is connected into by electrolytic capacitor or thin film capacitor or ultracapacitor.
- A kind of 5. AC stabilizer according to claim 1, it is characterised in that：Described by-pass switch, it is by manual Switch or motor switch composition.
- A kind of 6. AC stabilizer according to claim 1, it is characterised in that：Described control unit includes micro-control Device (CPU) chip processed, the microcontroller are stored with executable code and data, can be achieved to the single-phase inversion circuit, side The monitoring and control of way switch.
- 7. a kind of AC stabilizer according to claim 1, it is characterised in that it also includes：One group be parallel to it is described The low-pass filter circuit of transformer primary side winding, the low-pass filter circuit include ac filter capacitor, become for filtering out The current harmonics of depressor primary side winding.
- 8. a kind of AC stabilizer according to claim 1, it is characterised in that it also includes：One group be connected to it is described Single-phase inversion circuit AC side and the low-pass filter circuit of transformer secondary winding, the low-pass filter circuit include exchange filter Ripple capacitor and filter inductance, for filtering out the current harmonics of transformer secondary winding.
- 9. a kind of AC stabilizer according to claim 1, it is characterised in that it also includes：One group be parallel to it is described The electronic bypass switch of transformer secondary winding, the electronic bypass switch are by two antiparallel IGCTs or by one Diode single-phase full bridge and a thyristor groups are into the electronic bypass switch is controlled by described control unit, for the present apparatus Quick bypass during failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610852443.2A CN107872060A (en) | 2016-09-27 | 2016-09-27 | A kind of AC stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610852443.2A CN107872060A (en) | 2016-09-27 | 2016-09-27 | A kind of AC stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107872060A true CN107872060A (en) | 2018-04-03 |
Family
ID=61751170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610852443.2A Pending CN107872060A (en) | 2016-09-27 | 2016-09-27 | A kind of AC stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107872060A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022246976A1 (en) * | 2021-05-28 | 2022-12-01 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Direct-current circuit breaker of multi-terminal direct-current power transmission system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11164558A (en) * | 1997-11-28 | 1999-06-18 | Toshiba Corp | Ac voltage regulating apparatus |
| CN1862906A (en) * | 2006-06-01 | 2006-11-15 | 西安交通大学 | Series active AC voltage quality regulator and controlling method |
| CN203377602U (en) * | 2013-06-08 | 2014-01-01 | 田安振 | High-efficiency intelligent compound voltage compensation electricity-saving device |
| CN203660897U (en) * | 2014-01-16 | 2014-06-18 | 哈尔滨理工大学 | Device used for testing underground coal mine AC voltage-stabilizing power source |
| CN204089200U (en) * | 2014-08-27 | 2015-01-07 | 福建阳谷智能技术有限公司 | A kind of novel single-phase reactive compensation type pressure regulation transformation system |
| CN204205599U (en) * | 2014-09-26 | 2015-03-11 | 特变电工新疆新能源股份有限公司 | A kind of electronic type feeder line on-load voltage regulating device |
| CN204927003U (en) * | 2015-09-21 | 2015-12-30 | 张家港智电西威变流技术有限公司 | Contactless on -load voltage -regulating transformer |
| CN206370687U (en) * | 2016-09-27 | 2017-08-01 | 新能动力（北京）电气科技有限公司 | A kind of AC stabilizer |
-
2016
- 2016-09-27 CN CN201610852443.2A patent/CN107872060A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11164558A (en) * | 1997-11-28 | 1999-06-18 | Toshiba Corp | Ac voltage regulating apparatus |
| CN1862906A (en) * | 2006-06-01 | 2006-11-15 | 西安交通大学 | Series active AC voltage quality regulator and controlling method |
| CN203377602U (en) * | 2013-06-08 | 2014-01-01 | 田安振 | High-efficiency intelligent compound voltage compensation electricity-saving device |
| CN203660897U (en) * | 2014-01-16 | 2014-06-18 | 哈尔滨理工大学 | Device used for testing underground coal mine AC voltage-stabilizing power source |
| CN204089200U (en) * | 2014-08-27 | 2015-01-07 | 福建阳谷智能技术有限公司 | A kind of novel single-phase reactive compensation type pressure regulation transformation system |
| CN204205599U (en) * | 2014-09-26 | 2015-03-11 | 特变电工新疆新能源股份有限公司 | A kind of electronic type feeder line on-load voltage regulating device |
| CN204927003U (en) * | 2015-09-21 | 2015-12-30 | 张家港智电西威变流技术有限公司 | Contactless on -load voltage -regulating transformer |
| CN206370687U (en) * | 2016-09-27 | 2017-08-01 | 新能动力（北京）电气科技有限公司 | A kind of AC stabilizer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022246976A1 (en) * | 2021-05-28 | 2022-12-01 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Direct-current circuit breaker of multi-terminal direct-current power transmission system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203674997U (en) | Rectifier circuit | |
| CN102427233B (en) | Power saving device with harmonic suppression and voltage stabilization functions | |
| CN106655470B (en) | A kind of uninterruptible power supply and its control method | |
| CN103296687B (en) | High-efficiency intelligent duplicate voltage compensation power saver | |
| CN206370687U (en) | A kind of AC stabilizer | |
| CN107453360A (en) | A kind of power supply quality optimizes device and method | |
| CN205319962U (en) | Digital high voltage dc source control system | |
| CN103166199B (en) | A kind of Switching Power Supply and voltage protection method thereof | |
| CN107872060A (en) | A kind of AC stabilizer | |
| CN205791529U (en) | A kind of power supply quality optimizes device | |
| CN104270030B (en) | A kind of pulse power that can be exported with short circuit | |
| CN203445617U (en) | Unified power flow controller capable of short-circuit current limiting | |
| CN207166122U (en) | The protection device and micro-capacitance sensor of a kind of grounding transformer | |
| CN207069918U (en) | Static Electro minor voltage-stabilized power supply | |
| CN206283260U (en) | A kind of power supply quality optimizes device | |
| CN204835937U (en) | Three -phase photovoltaic grid -connected inverter power that ages | |
| CN204613249U (en) | Portable reaying protection test platform | |
| CN202586417U (en) | LINA-UPS for security monitoring system | |
| CN107453326A (en) | The protection device and micro-capacitance sensor of a kind of grounding transformer | |
| CN207459731U (en) | Five level SVG devices | |
| CN203813671U (en) | Multilevel intelligent power supply device for mining | |
| CN102377247B (en) | Power supply device with monitoring function | |
| CN206977324U (en) | Power circuit for low-voltage circuit breaker | |
| CN203416174U (en) | High-performance static power transformation intermediate frequency power supply | |
| CN107769221A (en) | A kind of power supply quality optimizes device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |