CN202856358U - Double closed loop dynamic voltage regulator - Google Patents
Double closed loop dynamic voltage regulator Download PDFInfo
- Publication number
- CN202856358U CN202856358U CN 201220424361 CN201220424361U CN202856358U CN 202856358 U CN202856358 U CN 202856358U CN 201220424361 CN201220424361 CN 201220424361 CN 201220424361 U CN201220424361 U CN 201220424361U CN 202856358 U CN202856358 U CN 202856358U
- Authority
- CN
- China
- Prior art keywords
- voltage regulator
- filter
- dynamic voltage
- closed loop
- double closed
- 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 - Fee Related
Links
Images
Landscapes
- Inverter Devices (AREA)
Abstract
Disclosed is a double closed loop dynamic voltage regulator, comprising a DC energy, a DC/AC inverter module, a series connection step up transformer, a switch protective device, a detection control system, and a filter, The system of the double closed loop dynamic voltage regulator is characterized in that the direct current energy is connected with the DC/AC inverter module and then connected with the filter; the filter is connected with the detection control system and the series connection step up transformer; and the series connection step up transformer is connected with a load via the switch protective device. The voltage and electromagnetic interference problem is solved by optimizing the dynamic voltage regulator. With the double closed loop control method, the dynamic performance of the output voltage is ensured, and the loading characteristic of a load is substantially improved, thereby eliminating the instability of resonant points output by the filter, eventually improving the stability of the output voltage of the dynamic voltage regulator, and ensuring the electric energy quality of the load side.
Description
Technical field
The utility model relates to electric device in the electrical network, relates to specifically a kind of pair of closed-loop dynamic voltage regulator.
Background technology
Along with the develop rapidly of information technology and the intensification of automaticity, power consumer is more and more responsive to the dynamic power quality of electrical network, and especially voltage collapse has become the most serious problem of electric load safe operation that affects.A kind of effective ways that solve the load voltage rapid drawdown are installed Dynamic Voltage Regulator exactly in distribution line.Principle according to Dynamic Voltage Regulator, existing technology has proposed a lot of methods to detecting, compensate the aspects such as control, in order to improve the stability of Dynamic Voltage Regulator output voltage, guarantee the quality of power supply of load side, the utility model proposes a kind of pair of closed-loop dynamic voltage regulator.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of simple, safe and reliable two closed-loop dynamic voltage regulators that use are provided.
The utility model solves its technical problem and takes following technical scheme to realize: a kind of pair of closed-loop dynamic voltage regulator; comprise dc energy source, DC/AC inverter module, series boosting transformer, protective switchgear, detection control system, filter; its system is that dc energy source connects the DC/AC inverter module; connecting again filter; filter is connecting detection control system and series boosting transformer, and the series boosting transformer is connecting by protective switchgear loads.
The beneficial effects of the utility model: by the optimization to Dynamic Voltage Regulator, solve voltage and electromagnetic interference problem, use two closed loop control methods, both guaranteed the dynamic property of output voltage, the load characteristic is significantly improved, so that the resonance point wild effect in output filter Fujian disappears, finally improve the stability of Dynamic Voltage Regulator output voltage, guarantee the quality of power supply of load side.
Description of drawings
For further specifying structure of the present utility model, accompanying drawings embodiment.
Fig. 1, the utility model control principle drawing.
Fig. 2, the utility model connecting circuit figure.
Embodiment
According to Fig. 1; Fig. 2; two closed-loop dynamic voltage regulators; comprise dc energy source, DC/AC inverter module, series boosting transformer, protective switchgear, detection control system, filter; its system is connected to dc energy source and connects the DC/AC inverter module; connecting filter, filter is connecting detection control system and series boosting transformer again, and the series boosting transformer is connecting by protective switchgear loads.At first detect point voltage or the magnitude of current according to detecting control system, generate compensating signal by control circuit according to compensation policy again, form pwm signal through the pulse-triggered electric current, removed again the power switch of control inverter by drive circuit, through LC filter filtering high order harmonic component, finally result from the bucking voltage that compensating instruction conforms at the series electrical depressor.
Adopt double circle controling mode that voltage compensation is controlled, improve the stability of Dynamic Voltage Regulator output voltage, guarantee the quality of power supply of load side.
Claims (1)
1. two closed-loop dynamic voltage regulator; comprise dc energy source, DC/AC inverter module, series boosting transformer, protective switchgear, detection control system, filter; it is characterized in that: its system is that dc energy source connects the DC/AC inverter module; connecting again filter; filter is connecting detection control system and series boosting transformer, and the series boosting transformer is connecting by protective switchgear loads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424361 CN202856358U (en) | 2012-08-26 | 2012-08-26 | Double closed loop dynamic voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220424361 CN202856358U (en) | 2012-08-26 | 2012-08-26 | Double closed loop dynamic voltage regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202856358U true CN202856358U (en) | 2013-04-03 |
Family
ID=47987516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220424361 Expired - Fee Related CN202856358U (en) | 2012-08-26 | 2012-08-26 | Double closed loop dynamic voltage regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202856358U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956759A (en) * | 2014-05-20 | 2014-07-30 | 国家电网公司 | Dynamic voltage compensation device |
| CN110989748A (en) * | 2019-12-26 | 2020-04-10 | 苏州乾能电气有限公司 | Three-phase alternating-current voltage amplitude control method |
| CN118033300A (en) * | 2024-04-10 | 2024-05-14 | 贵州国昱源丰节能科技有限公司 | Intelligent identification method for load power failure abnormality of dynamic voltage regulator |
-
2012
- 2012-08-26 CN CN 201220424361 patent/CN202856358U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956759A (en) * | 2014-05-20 | 2014-07-30 | 国家电网公司 | Dynamic voltage compensation device |
| CN110989748A (en) * | 2019-12-26 | 2020-04-10 | 苏州乾能电气有限公司 | Three-phase alternating-current voltage amplitude control method |
| CN118033300A (en) * | 2024-04-10 | 2024-05-14 | 贵州国昱源丰节能科技有限公司 | Intelligent identification method for load power failure abnormality of dynamic voltage regulator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103812135B (en) | Improve LCL type combining inverter to the control method of light current net adaptive capacity | |
| CN100561825C (en) | Distribution static synchronous compensator positive and negative order double ring stacking control method based on the instantaneous power balance | |
| CN204304574U (en) | The vehicle-mounted quick charge device of a kind of electric automobile | |
| CN103812115A (en) | Feedforward voltage series compensation device based on wind-solar-electricity complementation | |
| CN103023344A (en) | Universal smart grid power electronic device | |
| CN203027153U (en) | Universal smart power grid power electronic device | |
| CN202817792U (en) | Micro-source gird connection and power quality control system | |
| CN202856358U (en) | Double closed loop dynamic voltage regulator | |
| CN201178308Y (en) | Voltage disturbing compensating apparatus | |
| CN103606924B (en) | A kind of dynamic voltage compensation device and method | |
| CN204012740U (en) | A kind of light storage integral system | |
| CN203632255U (en) | Three-phase static var generator based on Z source network | |
| CN203859529U (en) | Self-recovery reactive power compensation thyristor filtering device | |
| CN103812117A (en) | Feed-forward voltage compensation device based on solar photovoltaic power generation | |
| CN204013242U (en) | Three-phase compensating type AC voltage regulating device | |
| CN102820655A (en) | Control method of voltage support and fault current limit compatible power electronic system | |
| CN206226020U (en) | A kind of power quality adjusting device | |
| CN205139754U (en) | Three -phase AC stabiliser | |
| CN203761049U (en) | Electric arc furnace reactive power fluctuation suppression device | |
| CN204089203U (en) | Based on the new type mining reactive-load compensator of modularization three-level structure | |
| CN204118749U (en) | The static chain type reactive generating device of mine flameproof and intrinsic safety type | |
| CN204089207U (en) | A kind of low pressure static reacance generator | |
| CN204442224U (en) | Transformer noload losses phase compensation device | |
| CN203312005U (en) | Power-saving winding | |
| CN203933020U (en) | A kind of feed-forward type voltage based on solar energy power generating falls surge compensation arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130403 Termination date: 20170826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |