CN201204457Y - Power distribution system with thrice wave-stopping device - Google Patents
Power distribution system with thrice wave-stopping device Download PDFInfo
- Publication number
- CN201204457Y CN201204457Y CNU2008200573060U CN200820057306U CN201204457Y CN 201204457 Y CN201204457 Y CN 201204457Y CN U2008200573060 U CNU2008200573060 U CN U2008200573060U CN 200820057306 U CN200820057306 U CN 200820057306U CN 201204457 Y CN201204457 Y CN 201204457Y
- Authority
- CN
- China
- Prior art keywords
- distribution system
- phase
- power supply
- trap
- traps
- 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.)
- Expired - Lifetime
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
- 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
- Y02E40/40—Arrangements for reducing harmonics
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a power supply-distribution system with third trap, wherein the power supply-distribution system comprises a three phase sine voltage source, a source internal resistance circuit, limiting reactor, silicon controlled three phase AC voltage regulator and load which are connected in sequence, a trigger signal generator is connected in series at medium of the three phase sine voltage source and the three phase AC voltage regulator, a third trap connected in series with the trap also is comprised, wherein the third trap comprises capacitance C and inductance L connected in parallel. The power supply-distribution system of the utility model can greatly reduce electric current on neutral conductor by third trap, can reduce line loss, and can enhance safety of power utilization.
Description
Technical field
The utility model relates to a kind of power supply-distribution system, relates in particular to a kind of power supply-distribution system with three traps.
Technical background
Along with technological progress, the kind quantity of nonlinear-load is all increasing sharply.These loads can cause that power network current, voltage waveform distort, and cause the harmonic wave " pollution " of electrical network.And airport, bank, precise electronic, electric locomotive, computer network and serve Surveillance center etc. the demand of high-quality electric energy is increased day by day.
The most of single-phase load of using of little user, the asynchronism of load adds the inequality of three alternate loads, causes the three-phase imbalance of little customer charge serious, flows through greatly thereby make the neutral line power on, and influences the fail safe of electricity consumption.Especially for power supply-distribution system, flow through greatly, can influence the fail safe of user power utilization greatly if the neutral line powers on.
Summary of the invention
The purpose of this utility model is to overcome the defective of prior art, and a kind of power supply-distribution system with three traps is provided, and this power supply-distribution system can reduce electric current on the neutral line greatly, reduces line loss, improve electrical safety by three traps.
The technical scheme that realizes above-mentioned purpose is: a kind of power supply-distribution system with three traps, this power supply-distribution system comprises three phase sine voltage source, internal resistance of source circuit, current limiting reactor, controllable silicon three phase ac controller and the load that links to each other successively, also be in series with a trigger signal generator between described three phase sine voltage source and the described controllable silicon three phase ac controller, wherein, also comprise three traps of connecting with described load, these three traps comprise capacitor C and the inductance L that is connected in parallel.
The above-mentioned power supply-distribution system with three traps, wherein, the inductance L of described three traps is also connected with a resistance R.
The beneficial effects of the utility model are: the utility model is used to reduce the electric current on the neutral line, it carries out user's the distribution that supplies by three phase sine voltage source, internal resistance of source circuit, current limiting reactor, controllable silicon three phase ac controller, load, three-phase trap and trigger signal generator, reduce the electric current on the neutral line, reduce line loss, the fail safe that has improved user power utilization.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the system diagram of an embodiment of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
See also Fig. 1 and Fig. 2, there is shown a kind of power supply-distribution system of the present utility model with three traps, comprise the three phase sine voltage source 1, internal resistance of source circuit 2, current limiting reactor 3, controllable silicon three phase ac controller 4 and the load 5 that link to each other successively, also be in series with a trigger signal generator 7 between three phase sine voltage source 1 and the controllable silicon three phase ac controller 4, also comprise three traps 6 of connecting with load 5, these three traps 6 comprise capacitor C and the inductance L that is connected in parallel, and this inductance L is also connected with a resistance R.
See also Fig. 2, be an embodiment of the present utility model, in this embodiment, insert three traps respectively and excise three traps, it is as shown in the table to insert three each phase harmonic currents contrasts of trap front and back:
By data in the table as can be seen, when the load fundamental current is 51A, drop into trap front and back neutral line triple harmonic current I three times
O, hBe respectively 28.7A and 1.9A, rejection rate is 93.4%; Drop into the trap front and back three times, the total Zero-pharse harmonic electric current I of the neutral line
HBe respectively 29.1A and 7.1A, total rejection rate is 76%.Three traps can reduce the distribution system line loss to reducing neutral line zero-sequence current by obvious effect, reduce harmonic failure, prolong transformer life.
Below embodiment has been described in detail the utility model in conjunction with the accompanying drawings, and those skilled in the art can make the many variations example to the utility model according to the above description.Thereby some details among the embodiment should not constitute qualification of the present utility model, and the scope that the utility model will define with appended claims is as protection range of the present utility model.
Claims (2)
1. power supply-distribution system with three traps, this power supply-distribution system comprises three phase sine voltage source, internal resistance of source circuit, current limiting reactor, controllable silicon three phase ac controller and the load that links to each other successively, also be in series with a trigger signal generator between described three phase sine voltage source and the described controllable silicon three phase ac controller, it is characterized in that, also comprise three traps of connecting with described load, these three traps comprise capacitor C and the inductance L that is connected in parallel.
2. the power supply-distribution system with three traps according to claim 1 is characterized in that, the inductance L of described three traps is also connected with a resistance R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200573060U CN201204457Y (en) | 2008-04-15 | 2008-04-15 | Power distribution system with thrice wave-stopping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200573060U CN201204457Y (en) | 2008-04-15 | 2008-04-15 | Power distribution system with thrice wave-stopping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201204457Y true CN201204457Y (en) | 2009-03-04 |
Family
ID=40426772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200573060U Expired - Lifetime CN201204457Y (en) | 2008-04-15 | 2008-04-15 | Power distribution system with thrice wave-stopping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201204457Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445427A (en) * | 2018-02-23 | 2018-08-24 | 江苏绿城信息技术有限公司 | A kind of electric vehicle alternating-current charging pile rapid form tester |
| CN110336458A (en) * | 2019-05-10 | 2019-10-15 | 珠海格力电器股份有限公司 | Harmonic suppression circuit, power supply with same and air conditioner |
-
2008
- 2008-04-15 CN CNU2008200573060U patent/CN201204457Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445427A (en) * | 2018-02-23 | 2018-08-24 | 江苏绿城信息技术有限公司 | A kind of electric vehicle alternating-current charging pile rapid form tester |
| CN110336458A (en) * | 2019-05-10 | 2019-10-15 | 珠海格力电器股份有限公司 | Harmonic suppression circuit, power supply with same and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103852663A (en) | Energy feedback type distributed photovoltaic power inverter integrated test system | |
| Byeon et al. | A research on the characteristics of fault current of DC distribution system and AC distribution system | |
| Jokojeje et al. | Application of Static synchronous compensator (Statcom) in improving Power System performance: a Case Study of the Nigeria 330 Kv electricity Grid | |
| CN108879679A (en) | A kind of multiple target Power Quality Comprehensive Treatment Device for medium voltage distribution network | |
| CN108964026A (en) | A kind of Research on Unified Power Quality Conditioner for medium voltage distribution network | |
| CN202872650U (en) | H-bridge-based high-voltage stabilized power supply | |
| CN100508099C (en) | Portable analog circuit breaker | |
| CN204304441U (en) | A kind of reactive power dynamic compensation system | |
| CN201204457Y (en) | Power distribution system with thrice wave-stopping device | |
| CN202084928U (en) | Hybrid compensation filtering cabinet | |
| CN207166122U (en) | The protection device and micro-capacitance sensor of a kind of grounding transformer | |
| CN203491701U (en) | Harmonic-resistant intelligent integrated power capacitor | |
| CN102420433B (en) | Reactive power compensation system based on magnetic switch | |
| CN204376746U (en) | A kind of online pure sine wave exports solar energy inverter | |
| CN107453326A (en) | The protection device and micro-capacitance sensor of a kind of grounding transformer | |
| CN202678977U (en) | Reactive power management apparatus for voltage of transformer station | |
| CN202798000U (en) | Static var generator (SVG) high voltage static reactive power compensation system | |
| CN204407907U (en) | A kind of pressure-adjusting type voltage reactive automatic compensation device | |
| CN203826939U (en) | Electricity utilization system applied to high-voltage plant of large and medium-sized thermal power plant | |
| CN209071826U (en) | A kind of anti-explosion reactive compensation device | |
| CN103326453B (en) | Megawatt converting technique research and development platform | |
| CN208337451U (en) | A kind of intelligent protection frequency conversion tank control circuit | |
| CN203026952U (en) | Star chain-type STATCOM (static synchronous compensator) device with unbalanced current compensation function | |
| CN202103427U (en) | Static state filtering reactive compensation cabinet | |
| CN201204448Y (en) | Thrice wave-stopping device for small user |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Min Inventor after: Zhao Xinmou Inventor after: Lu Huiqing Inventor after: Sun Shuxian Inventor after: Lu Yu Inventor after: Le Hongxi Inventor after: Li Ye Inventor after: Li Lingdong Inventor after: Huang Jie Inventor after: Cha Zhimin Inventor before: Zhou Min Inventor before: Zhao Xinmou Inventor before: Lu Huiqing Inventor before: Sun Shuxian Inventor before: Lu Yu Inventor before: Le Hongxi Inventor before: Li Ye Inventor before: Li Lingdong Inventor before: Huang Jie Inventor before: Cha Zhimin |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090304 |