CN101895122A - Output circuit of three-phase power voltage regulator - Google Patents
Output circuit of three-phase power voltage regulator Download PDFInfo
- Publication number
- CN101895122A CN101895122A CN 201010202570 CN201010202570A CN101895122A CN 101895122 A CN101895122 A CN 101895122A CN 201010202570 CN201010202570 CN 201010202570 CN 201010202570 A CN201010202570 A CN 201010202570A CN 101895122 A CN101895122 A CN 101895122A
- Authority
- CN
- China
- Prior art keywords
- phase
- output
- circuit
- down transformer
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
-
- 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
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
-
- 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
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Abstract
The invention discloses an output circuit of a three-phase power voltage regulator, and aims at providing the output circuit of the three-phase power voltage regulator, which can protect the normal work of an electric device when the electric device has a single-phase impact load with larger power. The output circuit comprises a three-phase voltage regulation circuit and an output control circuit, wherein the output control circuit comprises a step-down transformer TB (1) and a single-phase output wire connecting terminal (2), the primary of the step-down transformer TB (1) is 380V, the secondary is 220V, the primary of the single-phase step-down transformer TB (1) is connected with any two phases of the output end of the three-phase voltage regulation circuit, the three-phase electric device is connected with the output end of the three-phase voltage regulation circuit, and the single-phase impact load is connected with the single-phase output wire connecting terminal (2). The output circuit can be widely applied in the field of power voltage regulators and is particularly applicable to electric places which contain the single-phase high-power impact loads in the electric devices.
Description
Technical field
The present invention relates to the electric power voltage stabilizer field, particularly contain the electricity consumption place of single-phase high-power impact load behind the three-phase power voltage regulator of three-phase and four-line input in the level power consumption equipment.
Background technology
The pressurizer of widespread usage is a three-phase power voltage regulator in the electric power system, three-phase four-wire system is adopted in its input and output usually, power consumption equipment can be that three-phase (3 Φ 380V) also can be single-phase (single-phase 220V), makes the power of power consumption equipment three-phase in a basic balance in design and construction as far as possible.Because with electric loading and power supply environmental differences, may occur not is pressurizer fault and influence the situation of the normal operation of pressurizer, and for example: 1, the electricity consumption place is far away apart from distribution transformer, and the impedance of supply line is bigger; 2, the conductor cross-section of transmission line is selected less than normally, and the neutral line (zero line N) is designed to 1/2nd of phase line, causes the zero line impedance further to strengthen; 3, contain single-phase high-power impact load in the power consumption equipment, as power consumption equipments such as single-phase motor, single-phase air-conditionings.
The starting current of motor load is 6～8 times of specified revolution electric current, the big electric current of the startup of single-phase electric devices causes threephase load seriously uneven in above-mentioned power utilization environment, excessive single-phase load electric current fibre is got back to the neutral point of supply transformer again through zero line (N) to power consumption equipment by the phase line of supply line, instantaneous large-current wherein one reaches the very big impedance drop of generation on the zero line mutually three-phase power line, single-phase big electric current causes serious neutral point excursion, cause a wherein phase voltage moment reduction and two-phase voltage instantaneous rising in addition, phase voltage moment that load is big is fallen and surpasses the under-voltage protection value, to making pressurizer carry out " under-voltage protection "; The little two-phase voltage instantaneous of load raises and surpasses the overvoltage protection value, and pressurizer is carried out " overvoltage protection ", and " under-voltage protection " and " overvoltage protection " all can make the output of circuitry cuts power supply.Pressurizer cuts off output back loading electric current and reduces to zero; the pressurizer input voltage returns to normal value; power consumption equipment is restarted pressurizer and is carried out " under-voltage protection " and " overvoltage protection " once more and go round and begin again and form vibration, causes the non-fault of pressurizer own and can not normally move.
In sum, output circuit of three-phase power voltage regulator of the prior art exists when the impedance that more high-power single-phase impact load and supply line are arranged in the power consumption equipment is big, when especially the zero line impedance is big, causes pressurizer normally not move and influence the defective of the operate as normal of power consumption equipment.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, and a kind of output circuit of three-phase power voltage regulator that has only single-phase high power output function is provided.When the impedance that more high-power single-phase impact load and supply line are arranged in the power consumption equipment was big, when especially the zero line impedance is big, thereby pressurizer can normally move the operate as normal that ensures power consumption equipment.
The technical solution adopted in the present invention is: the present invention includes three-phase voltage stabilizing circuit and output control circuit, described three-phase voltage stabilizing circuit comprises three-phase pressurizer and input, the output switch element, described output control circuit comprises step-down transformer TB, single-phase output wiring terminal, the elementary of described step-down transformer TB is 380V, secondary is 220V, any two of the elementary and described three-phase circuit output end of pressure-stabilizing of described single phase step-down transformer TB is connected, elementary and the described single-phase output wiring terminal of described step-down transformer TB is connected, and the capacity of described step-down transformer TB is suitable with electric loading with the single-phase impact that is connected.
The three-phase power consumption equipment is connected with described three-phase circuit output end of pressure-stabilizing, and single-phase impact is connected with described single-phase output wiring terminal with electric loading.
The invention has the beneficial effects as follows: it comprises three-phase voltage stabilizing circuit and output control circuit owing to the present invention, described three-phase voltage stabilizing circuit comprises three-phase pressurizer and input, the output switch element, described output control circuit comprises step-down transformer TB, single-phase output wiring terminal, the elementary of described step-down transformer TB is 380V, secondary is 220V, any two of the elementary and described three-phase circuit output end of pressure-stabilizing of described single phase step-down transformer TB is connected, elementary and the described single-phase output wiring terminal of described step-down transformer TB is connected, the capacity of described step-down transformer TB is suitable with electric loading with the single-phase impact that is connected, the three-phase power consumption equipment is connected with described three-phase circuit output end of pressure-stabilizing, and single-phase impact is connected with described single-phase output wiring terminal with electric loading.The present invention can be used for dissimilar electric power voltage regulator circuits, having increased step-down transformer TB at the output of voltage regulator circuit is connected with single-phase equipment, the load current of the single-phase electric devices zero line N that no longer flows through has stopped the neutral point drifting that the zero line impedance voltage causes; The electric line electric current only is 0.58 times of the single-phase electric devices electric current, so reduced the impedance drop of electric line, has guaranteed the normal operation of pressurizer and power consumption equipment.
Description of drawings
Fig. 1 is that the present invention is an electrical block diagram.
Embodiment
As shown in Figure 1, the present invention includes three-phase voltage stabilizing circuit and output control circuit, described three-phase voltage stabilizing circuit comprises three-phase pressurizer and input, the output switch element, described output control circuit comprises step-down transformer TB1, single-phase output wiring terminal 2, the elementary of described step-down transformer TB 1 is 380V, secondary is 220V, any two of the elementary and described three-phase circuit output end of pressure-stabilizing of described single phase step-down transformer TB 1 is connected, elementary and the described single-phase output wiring terminal 2 of described step-down transformer TB 1 is connected, and the capacity of described step-down transformer TB 1 is suitable with electric loading with the single-phase impact that is connected.The three-phase power consumption equipment is connected with described three-phase circuit output end of pressure-stabilizing, and single-phase impact is connected with described single-phase output wiring terminal 2 with electric loading.
The present invention is applicable to the reform of the voltage regulator circuit of various voltage stabilizing forms, as: parameter voltage stabilizator, mechanical regulating compensation formula pressurizer, Induction Regulation formula pressurizer and the contactless pressurizer of novel thyristor.This has the output circuit of three-phase power voltage regulator of single-phase high power output function, just the output end of pressure-stabilizing at pressurizer installs a 380V/220V single phase step-down transformer TB additional, single phase step-down transformer TB primary voltage is that 380V is connected on any two phase lines of voltage stabilizing output, and the power of step-down transformer TB is determined by the capacity of single-phase impact power consumption equipment.This moment single-phase impact power consumption equipment the big electric current neutral line (zero line N) of no longer flowing through, stopped the neutral point drifting that the zero line impedance voltage causes; Transformer TB primary voltage has improved 1.73 times than secondary voltage, the primary current of transformer TB (transmission line electric current) only is 0.58 times of single-phase electric devices electric current, under the constant situation of power consumption equipment, reduced the transmission line electric current, reduced the impedance drop of electric line, improve the power supply capacity of electric line, guaranteed the normal operation of pressurizer and power consumption equipment.But the present invention's extensive use electric power voltage stabilizer field is specially adapted to contain in the level power consumption equipment behind the three-phase power voltage regulator of three-phase and four-line input the electricity consumption place of single-phase high-power impact load.
Claims (2)
1. output circuit of three-phase power voltage regulator, it comprises three-phase voltage stabilizing circuit and output control circuit, described three-phase voltage stabilizing circuit comprises three-phase pressurizer and input, the output switch element, it is characterized in that: described output control circuit comprises step-down transformer TB (1), single-phase output wiring terminal (2), the elementary of described step-down transformer TB (1) is 380V, secondary is 220V, any two of the elementary and described three-phase circuit output end of pressure-stabilizing of described single phase step-down transformer TB (1) is connected, elementary and the described single-phase output wiring terminal (2) of described step-down transformer TB (1) is connected, and the capacity of described step-down transformer TB (1) is suitable with electric loading with the single-phase impact that is connected.
2. output circuit of three-phase power voltage regulator according to claim 1 is characterized in that: the three-phase power consumption equipment is connected with described three-phase circuit output end of pressure-stabilizing, and single-phase impact is connected with described single-phase output wiring terminal (2) with electric loading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010202570 CN101895122B (en) | 2010-06-13 | 2010-06-13 | Output circuit of three-phase power voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010202570 CN101895122B (en) | 2010-06-13 | 2010-06-13 | Output circuit of three-phase power voltage regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101895122A true CN101895122A (en) | 2010-11-24 |
| CN101895122B CN101895122B (en) | 2013-01-09 |
Family
ID=43104233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010202570 Expired - Fee Related CN101895122B (en) | 2010-06-13 | 2010-06-13 | Output circuit of three-phase power voltage regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101895122B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377247A (en) * | 2011-12-06 | 2012-03-14 | 苏州易米克电子有限公司 | Power supply device with monitoring function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001350526A (en) * | 2000-06-09 | 2001-12-21 | Mitsubishi Electric Corp | Power saving circuit |
| CN2907025Y (en) * | 2006-05-24 | 2007-05-30 | 珠海科达信电子科技有限公司 | Three-phase power voltage regulator with automatic phase sequence switchover function |
| CN2919314Y (en) * | 2006-05-24 | 2007-07-04 | 珠海科达信电子科技有限公司 | Electrical manostat with function of outputting from three single-phases respectively |
| US7576449B2 (en) * | 2006-01-27 | 2009-08-18 | Sma Solar Technology Ag | Method for converting direct voltage into three-phase alternating voltage |
| CN201699422U (en) * | 2010-06-13 | 2011-01-05 | 珠海科达信电子科技有限公司 | Output circuit for three-phase power voltage stabilizer |
-
2010
- 2010-06-13 CN CN 201010202570 patent/CN101895122B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001350526A (en) * | 2000-06-09 | 2001-12-21 | Mitsubishi Electric Corp | Power saving circuit |
| US7576449B2 (en) * | 2006-01-27 | 2009-08-18 | Sma Solar Technology Ag | Method for converting direct voltage into three-phase alternating voltage |
| CN2907025Y (en) * | 2006-05-24 | 2007-05-30 | 珠海科达信电子科技有限公司 | Three-phase power voltage regulator with automatic phase sequence switchover function |
| CN2919314Y (en) * | 2006-05-24 | 2007-07-04 | 珠海科达信电子科技有限公司 | Electrical manostat with function of outputting from three single-phases respectively |
| CN201699422U (en) * | 2010-06-13 | 2011-01-05 | 珠海科达信电子科技有限公司 | Output circuit for three-phase power voltage stabilizer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377247A (en) * | 2011-12-06 | 2012-03-14 | 苏州易米克电子有限公司 | Power supply device with monitoring function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101895122B (en) | 2013-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101212148A (en) | Dual path input standby power supply system | |
| CN201699422U (en) | Output circuit for three-phase power voltage stabilizer | |
| CN103178527A (en) | Voltage deviation adjustor | |
| KR101430577B1 (en) | Voltage sag protector for three phase servo driver | |
| CN201048291Y (en) | Parallel high voltage dynamic reactive compensator | |
| CN101895122B (en) | Output circuit of three-phase power voltage regulator | |
| CN205319698U (en) | Apply to electric main wiring of desulfurization that thermal power plant's desulfurization was reformed transform | |
| CN108736360A (en) | A kind of integration loaded capacity regulating voltage regulating power distribution station | |
| CN204464944U (en) | A kind of circuit breaker with default-phase protection function off zero | |
| CN106159975B (en) | Series compensation device suitable for multi-circuit line | |
| CN104779620A (en) | Voltage control device of power distribution network | |
| CN2919314Y (en) | Electrical manostat with function of outputting from three single-phases respectively | |
| CN202565018U (en) | Mixing neutral-point grounding system | |
| Bhardwaj et al. | Installation of Automatically Controlled Compensation Banks | |
| CN203193283U (en) | Voltage deviation regulator | |
| CN112491089A (en) | Micro-grid on-grid and off-grid hybrid switching system and method | |
| CN201805211U (en) | Starting protection device for test run of electrical equipment | |
| CN213717834U (en) | Dedicated intelligent integration electrical power generating system structure of broadcasting and TV and circuit | |
| CN205986167U (en) | Cascade compensation device suitable for many loop lines way | |
| CN201199634Y (en) | Electric network positive-negative reactive compensator | |
| CN202512212U (en) | Marine air circuit breaker integrated testing device | |
| CN107623256B (en) | Switch cabinet and control method thereof | |
| CN215420111U (en) | Low-voltage multifunctional power supply | |
| CN203747430U (en) | Balanced electricity saver used for three-phase power supply and power distribution system | |
| CN201035437Y (en) | Digital exciting arrangement compound voltage-stabilized power supply unit of hydro-turbo generator set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20170613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |