CN2419726Y - Automatic compensator for power factor of network - Google Patents
Automatic compensator for power factor of network Download PDFInfo
- Publication number
- CN2419726Y CN2419726Y CN 00209885 CN00209885U CN2419726Y CN 2419726 Y CN2419726 Y CN 2419726Y CN 00209885 CN00209885 CN 00209885 CN 00209885 U CN00209885 U CN 00209885U CN 2419726 Y CN2419726 Y CN 2419726Y
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- CN
- China
- Prior art keywords
- power factor
- phase
- thyristors
- network
- automatic control
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- 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
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- Control Of Electrical Variables (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model relates to an automatic compensator for the power factor of a network, which is composed of a controllable switch device, a self-control power factor controller. The utility model is characterized in that the controllable switch device is composed of two thyristors and two diodes which are connected in reversal and parallel, the input end of the controllable switch device is connected with the two-phase of a three-phase network power source, and the which is connected with both ends of a capacitor bank. The other end of the capacitor bank is connected with the third phase of the three-phase network power source, and the capacitor bank can be a delta connection method and can also be a star connection method. Anodes or cathodes of the two thyristors are connected with the network. The control ends of the thyristors are connected with the self-control power factor controller. When the automatic compensator switches the capacitor bank, the electric current has no impact, and the operation is reliable.
Description
The utility model belongs to the power factor of electric network compensation arrangement, is to change to the electrical network opening-closing capacitor bank according to power factor of electric network, realizes the device of automatic control power factor of electric network compensation.
In the technology of existing power factor of electric network compensation, all adopt six thyristors as electronic switch, and become Y type or △ type circuit with the capacitor winding, carry out the switching of non-impact current, or (as application number 95204838.8) three thyristors are connected control capacitor group, composition △ type connection with three diode inverse parallels, carry out the switching of non-impact current, electrical network is compensated.In three-phase circuit, control opening-closing capacitor bank with six thyristors or three thyristors and three diodes as electronic switching device, use components and parts many, manufacturing cost rises, complex circuit.
The purpose of this utility model is a kind of novel automatic control power factor of electric network compensation arrangement of design, it adopts the gate-controlled switch device of two thyristors and two diodes and automatic control power factor controller to form, can be according to the realtime power factor of electrical network, automatically send the instruction opening-closing capacitor bank, the power factor of electric network online in real time is compensated.This installs, and used element is few, cost is low, and electric current does not have impact to electrical network during switching.
Power factor of electric network compensation arrangement of the present utility model, form by gate-controlled switch device, automatic control power factor controller, it is characterized in that: form the gate-controlled switch device by two thyristors and two diode inverse parallels, its input is connected with the two-phase electric network source, its output is connected with capacitor group two ends, the capacitor group other end is connected with the electric network source third phase, and the capacitor group can be a delta connection, also can be star connection.The male or female of two thyristors connects electrical network simultaneously.The thyristor control end is connected with the automatic control power factor controller.The automatic control power factor controller is made of automatic synchronizing indicator, single-chip microcomputer, pulse driver etc.
Occupation mode of the present utility model is: by the realtime power factor of automatic control power factor controller according to electrical network, automatically send instruction, detect synchronizing signal by automatic synchronizing indicator, realize the switching of capacitor group no current impact is compensated the power factor of electric network online in real time by three-phase gate-controlled switch device.
The utility model automatic control power factor of electric network compensation arrangement advantage is: adopt by two thyristors and two diode inverse parallels and form gate-controlled switch device, automatic synchronous detecting, no current impact opening-closing capacitor bank, reliable operation has realized the level and smooth control purpose to power factor of electric network.Compare with the control switch that three diode inverse parallels are connected with six thyristor control switchs of three-phase or three thyristors, cost is low, when reaching switching equally electrical network is not had impact.The utility model is useful for the power factor of electric network compensation.
Below in conjunction with drawings and Examples automatic control power factor of electric network compensation arrangement is described further.
Shown in Figure 1 is that the capacitor group is the automatic control power factor of electric network compensation arrangement schematic diagram of star connection.
Shown in Figure 2 is that the capacitor group is the automatic control power factor of electric network compensation arrangement schematic diagram of delta connection.
Shown in Figure 3 is the schematic diagram of automatic control power factor of electric network controller
As figure shows, the utility model automatic control power factor of electric network compensation arrangement is by the gate-controlled switch device, automatic control power factor of electric network controller is formed, it is characterized in that: form gate-controlled switch device 2 by two thyristors and two diode inverse parallels, its input is connected with two of three phase mains 1, and its output is connected with capacitor group 3 or 4 two ends, and the capacitor group other end is connected with the third phase of three phase mains 1, the capacitor group can be a delta connection, also can be star connection.The male or female of two thyristors of gate-controlled switch device 2 connects power generating facilities and power grids 1 simultaneously.Thyristor control end 5 is connected with automatic control power factor controller 6.The automatic control power factor controller is made of automatic synchronizing indicator 7, single-chip microcomputer 8, pulse driver 9, and the synchronised grids opening-closing capacitor bank constitutes the power factor of electric network compensation control circuit automatically.
Claims (3)
1. automatic control power factor of electric network compensation arrangement, form by gate-controlled switch device, automatic control power factor controller, it is characterized in that: form three phase mains gate-controlled switch device by two thyristors and two diode inverse parallels, its input is connected with two of three phase network power supply, its output is connected with capacitor group two ends, the capacitor group other end directly is connected with three phase network power supply third phase, and the thyristor control end of three-phase gate-controlled switch device is connected with the automatic control power factor controller.
2. automatic control power factor of electric network compensation arrangement according to claim 1 is characterized in that: the anode of two thyristors of gate-controlled switch device connects electrical network, and perhaps the negative electrode of two thyristors connects electrical network.
3. automatic control power factor of electric network compensation arrangement according to claim 1 is characterized in that: the capacitor group can be a delta connection, also can be star connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00209885 CN2419726Y (en) | 2000-04-26 | 2000-04-26 | Automatic compensator for power factor of network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00209885 CN2419726Y (en) | 2000-04-26 | 2000-04-26 | Automatic compensator for power factor of network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2419726Y true CN2419726Y (en) | 2001-02-14 |
Family
ID=33576887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00209885 Expired - Lifetime CN2419726Y (en) | 2000-04-26 | 2000-04-26 | Automatic compensator for power factor of network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2419726Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100440679C (en) * | 2002-11-20 | 2008-12-03 | 盈正豫顺电子股份有限公司 | Mixing type virtual work compensator |
| CN100470999C (en) * | 2002-11-08 | 2009-03-18 | 盈正豫顺电子股份有限公司 | Mixing type virtual work compensator |
| WO2010083639A1 (en) * | 2009-01-21 | 2010-07-29 | 北京馨容纵横科技发展有限公司 | Two-control-three precharging phase-controlled switch circuit for switching capacitor bank |
| CN102510067A (en) * | 2011-11-02 | 2012-06-20 | 西安交通大学 | Method for preventing thyristors from being locked during quick and repeated zero cross switching of three-phase thyristor switched capacitor (TSC) |
| CN101783511B (en) * | 2009-01-21 | 2013-05-01 | 北京馨容纵横科技发展有限公司 | Two-control three-precharge phase-control switch circuit of switched capacitor bank |
-
2000
- 2000-04-26 CN CN 00209885 patent/CN2419726Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100470999C (en) * | 2002-11-08 | 2009-03-18 | 盈正豫顺电子股份有限公司 | Mixing type virtual work compensator |
| CN100440679C (en) * | 2002-11-20 | 2008-12-03 | 盈正豫顺电子股份有限公司 | Mixing type virtual work compensator |
| WO2010083639A1 (en) * | 2009-01-21 | 2010-07-29 | 北京馨容纵横科技发展有限公司 | Two-control-three precharging phase-controlled switch circuit for switching capacitor bank |
| CN101783511B (en) * | 2009-01-21 | 2013-05-01 | 北京馨容纵横科技发展有限公司 | Two-control three-precharge phase-control switch circuit of switched capacitor bank |
| CN102510067A (en) * | 2011-11-02 | 2012-06-20 | 西安交通大学 | Method for preventing thyristors from being locked during quick and repeated zero cross switching of three-phase thyristor switched capacitor (TSC) |
| CN102510067B (en) * | 2011-11-02 | 2014-03-12 | 西安交通大学 | Method for preventing thyristors from being locked during quick and repeated zero cross switching of three-phase thyristor switched capacitor (TSC) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081128 Address after: Shenyang Hunnan New District Road No. 2. Only information Park B block, room 419/420, zip code: 110179 Patentee after: Liaoning Jinzi Tianzheng Intelligent Control Co., Ltd. Address before: Yang Jianning, 84 Fengtai Road, Beijing, postcode: 100071 Patentee before: Beijing Jinzitianzheng Intelligent Control Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: LIAONING JINZI TIANZHENG INTELLIGENT CONTROL CO., Free format text: FORMER OWNER: BEIJING ARTIME INTELLIGENT CONTROL CO., LTD. Effective date: 20081128 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20010214 |