CN207909008U - A kind of power amplifier for electromagnetic transient simulation platform - Google Patents
A kind of power amplifier for electromagnetic transient simulation platform Download PDFInfo
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- CN207909008U CN207909008U CN201721543112.7U CN201721543112U CN207909008U CN 207909008 U CN207909008 U CN 207909008U CN 201721543112 U CN201721543112 U CN 201721543112U CN 207909008 U CN207909008 U CN 207909008U
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- voltage
- amplifying unit
- amplifier
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Abstract
The utility model provides a kind of power amplifier for electromagnetic transient simulation platform, including linear DC power supply and Current Voltage amplifier, the Current Voltage amplifier is equipped with control panel, main control chip, temperature sensor, linear current amplifying unit and linear voltage amplifying unit, the main control chip respectively with the control panel, temperature sensor, linear current amplifying unit is connected with linear voltage amplifying unit, the linear DC power supply is connected with Current Voltage amplifier, the utility model linearity is good, response quickly, accurate load current can be exported, signal strength by amplification is high, power is big, so that the simulation result accuracy rate of the electromagnetic transient simulation platform is improved.
Description
Technical field
The utility model is related to electromagnetic transient simulation technical fields, and in particular to a kind of for electromagnetic transient simulation platform
Power amplifier.
Background technology
As power grid scale and installed capacity constantly expand, complexity is increasingly deepened, power system stability operation problem
It can not be ignored, continuous with electric system scale expands and the electromagnetic transient analysis fields such as electric network fault, switching overvoltage
Influence of the problem to system voltage gradually shows, and the contradiction between electric system simulation scale and simulation accuracy increasingly shows, phase
Mutual independent electromechanical transient simulation and electromagnetic transient simulation are difficult to the requirement for meeting modern power systems to emulation.
Establish a set of electromechanical transient-electromagnetic transient hybrid simulation system for taking into account simulation scale and simulation accuracy, Ji Nengjing
Really wave distortion caused by process and various failures, switching overvoltage of simulation electro-magnetic transient fast transient etc., and be avoided that
Due to the system equivalent error that simulation scale limits and generates, the modeling accuracy of network analysis research is improved, for improving electric power
System emulation accuracy of analysis, research electromagnetic transient in detail will all play practical work to dynamic effects of system operation etc.
With, and that there is increasing values is low, output channel is few, power is small for power amplifier used by current electromagnetic transient simulation system
The problem of, cause simulation result inaccurate, effective solution is not yet received at present.
Utility model content
Mirror is with this, the purpose of this utility model is to provide a kind of power amplifier for electromagnetic transient simulation system,
To solve problem above.
Technical solution used by the utility model is：
A kind of power amplifier for electromagnetic transient simulation platform, including linear DC power supply and Current Voltage amplification
Device, the Current Voltage amplifier are equipped with control panel, main control chip, temperature sensor, linear current amplifying unit and linear
Voltage amplification unit, the main control chip respectively with the control panel, temperature sensor, linear current amplifying unit and linear
Voltage amplification unit is connected, and the linear DC power supply is connected with Current Voltage amplifier by circuit.
Preferably, the control panel is equipped with display screen, status indicator lamp, high power button, pause button, electric current output
Interface, voltage output interface and signal source input interface, the display screen, status indicator lamp, high power button, pause button point
It is not connected by circuit with the main control chip, the current output interface passes through circuit phase with the linear current amplifying unit
Even, the voltage output interface is connected with the linear voltage amplifying unit by circuit, the signal source input interface difference
It is connected by Differential input circuit with the linear current amplifying unit and linear voltage amplifying unit.
Preferably, the status indicator lamp, including indicator of the power supply status, running LED, overheating indicator lamp, electricity
The short-circuit indicator light of pressure, open circuit alarm lamp.
Preferably, the linear current amplifying unit is straight coupling type, and is equipped with 12 road Current amplifier channels, can be realized per road
Three-phase current exports simultaneously.
Preferably, the linear voltage amplifying unit is straight coupling type, and is equipped with 12 tunnel voltage amplification channels, can be realized per road
Three-phase voltage exports simultaneously.
Compared with prior art, the utility model has the beneficial effects that：
Linear current amplifier and linear voltage amplifier in the Current Voltage amplifier of the utility model are respectively equipped with
12 road amplification channels are exported while can realizing three-phase current or three-phase voltage per road amplification channel, are had excellent performance；Using line
Property DC power supply, the linearity is good, can export accurate load current, and signal strength by amplification is high, power is big so that described
The simulation result accuracy rate of electromagnetic transient simulation platform is improved；Equipped with high power button, peak power output can be made to increase
About 20%.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only the preferred reality of the utility model
Example is applied, it for those of ordinary skill in the art, without having to pay creative labor, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the overall structure signal of the power amplifier for electromagnetic transient simulation platform of the utility model embodiment
Figure.
In figure, 1 is linear DC power supply, and 2 be Current Voltage amplifier, and 21 be main control chip, and 22 be control panel, and 23 are
Temperature sensor, 24 be linear voltage amplifying unit, and 25 be linear current amplifying unit.
Specific implementation mode
The principles of the present invention and feature are described below in conjunction with attached drawing, cited embodiment is served only for explaining this
Utility model is not intended to limit the scope of the utility model.
Referring to Fig.1, the utility model provides a kind of power amplifier for electromagnetic transient simulation platform, including linear straight
Galvanic electricity source 1 and Current Voltage amplifier 2, the Current Voltage amplifier 2 are equipped with main control chip 21, control panel 22, temperature and pass
Sensor 23, linear voltage amplifying unit 24 and linear current amplifying unit 25, the main control chip 21 respectively with the control plane
Plate 22, temperature sensor 23, linear voltage amplifying unit 24 are connected with linear current amplifying unit 25, the linear direct current motor
Source 1 is connected with Current Voltage amplifier 2 by circuit, and power supply is provided for Current Voltage amplifier 2.Current Voltage amplifier 2
Control panel 22 for show equipment operation information and provide input/output interface；The linear voltage amplifying unit 24 and line
Property current amplification unit 25 be used to carry out amplification to the current and voltage signals of input and export, while temperature sensor monitors
Equipment interior environment temperature is prevented due to temperature anomaly caused by long-play.
The control panel 22 be equipped with display screen, status indicator lamp, high power button, pause button, current output interface,
Voltage output interface and signal source input interface.The display screen, status indicator lamp, high power button, pause button respectively with
The main control chip is connected by circuit, and the current output interface is connected with the linear current amplifying unit by circuit,
The voltage output interface is connected with the linear voltage amplifying unit by circuit, the signal source input interface respectively with institute
Linear current amplifying unit is stated with linear voltage amplifying unit to be connected by Differential input circuit.The display screen is for showing electricity
Voltage amplifier correlation operating parameter, including electric current, voltage are flowed per the real effective of road output valve；The pause button can be cut
The signal input of power-off stream voltage amplifier 2, presses pause button, the output current of Current Voltage amplifier 2 will become zero；Institute
Stating can allow the peak power output of Current Voltage amplifier 2 to increase about 20% after high power button is pressed；The electric current output
Interface and voltage output interface are used for the electric current and voltage after electromagnetic transient simulation platform device output amplification；The letter
Number source input interface is for accessing current and voltage signals source, by using Differential input circuit and the linear voltage amplifying unit
24 are connected with linear current amplifying unit 25, it is possible to reduce the influence of common-mode noise makes amplifier can long line company with signal source
It connects；And reduce each amplification channel influencing each other when exporting high current.Ensure the work safety of simulator.
Specifically, the status indicator lamp includes indicator of the power supply status, running LED, overheating indicator lamp, electricity
The short-circuit indicator light of pressure, open circuit alarm lamp.Indicator of the power supply status indicates whether access power supply status is normal；Operating status refers to
Show that lamp indicates whether Current Voltage 2 operating statuses of amplifier normal, overheating indicator lamp indicate Current Voltage amplifier 2 whether due to
Continuous service causes to overheat, when the temperature sensor 23 detects that equipment interior environment temperature is excessively high, linear voltage amplification
The input of unit 24 and linear current amplifying unit 25 can be switched off automatically, while overheating indicator lamp is bright；Voltage short circuit indicator light
Indicate whether Current Voltage 2 voltages of amplifier are short-circuit；Alarm lamp of opening a way indicates the electric current output of Current Voltage amplifier 2
Open circuit or wave distortion.
The high power button and pause button that the main control chip 21 is used to receive on the such as described control panel 22 touch
The control signal of hair, and be converted to corresponding control instruction；Or it acquires the operating parameter of Current Voltage amplifier 2 and passes through described
Display screen and the status indicator lamp are shown.
The linear voltage amplifying unit 24 is straight coupling type, has good low frequency characteristic, and it is slow can to amplify variation
Signal, and 12 tunnel voltage amplification channels are equipped with, it can realize three-phase voltage per road while export, it is imitative that the electro-magnetic transient can be met
True platform is carried out at the same time the demand of multiple independent artificial tasks.The performance indicator of linear voltage amplifying unit 24 reaches at or above table
1 requirement.
Table 1
The linear current amplifying unit 25 is straight coupling type, has good low frequency characteristic, and it is slow can to amplify variation
Signal, and 12 road Current amplifier channels are equipped with, it can realize three-phase current per road while export, it is imitative that the electro-magnetic transient can be met
True platform is carried out at the same time the demand of multiple independent artificial tasks.The performance indicator of linear current amplifying unit 25 reaches at or above table
2 requirement.
Table 2
The linear voltage amplifying unit 24 and linear current amplifying unit 25 pass through institute by after voltage and current signal amplification
The voltage output interface and current output interface stated on control panel 22 are exported, at the same main control chip 21 respectively with linear electricity
It presses big unit 24 with linear current amplifying unit 25 to be connected, monitor operational process and passes through the display screen and state instruction
Lamp indicates current device operating status, is convenient for staff's daily maintenance, timely discovering device operation problem.
A kind of power amplifier for electromagnetic transient simulation platform provided by the utility model, the linearity is good, and response is fast,
Carrying load ability is strong, is suitble to the application scenarios that electromagnetic transient simulation platform protection screen is more, transmission range is long, load impedance is high, energy
Accurate load current is exported, while passing through display screen and status indicator lamp real-time display equipment running status, easy to maintain, length
Under time service, stability is high, highly reliable.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
1. a kind of power amplifier for electromagnetic transient simulation platform, which is characterized in that including linear DC power supply and electric current
Voltage amplifier, the Current Voltage amplifier are equipped with control panel, main control chip, temperature sensor, linear current amplification list
Member and linear voltage amplifying unit, the main control chip are single with the control panel, temperature sensor, linear current amplification respectively
Member is connected with linear voltage amplifying unit, and the control panel is put with the linear current amplifying unit and linear voltage respectively
Big unit is connected, and the linear DC power supply is connected with Current Voltage amplifier by circuit.
2. a kind of power amplifier for electromagnetic transient simulation platform according to claim 1, which is characterized in that described
Control panel be equipped with display screen, status indicator lamp, high power button, pause button, current output interface, voltage output interface,
Signal source input interface, the display screen, status indicator lamp, high power button, pause button are logical with the main control chip respectively
Oversampling circuit is connected, and the current output interface is connected with the linear current amplifying unit by circuit, and the voltage output connects
Mouth is connected with the linear voltage amplifying unit by circuit, and the signal source input interface amplifies with the linear current respectively
Unit is connected with linear voltage amplifying unit by Differential input circuit.
3. a kind of power amplifier for electromagnetic transient simulation platform according to claim 2, which is characterized in that described
Status indicator lamp, including indicator of the power supply status, running LED, overheating indicator lamp, voltage short circuit indicator light, open circuit report
Alert indicator light.
4. a kind of power amplifier for electromagnetic transient simulation platform according to claim 1, which is characterized in that described
Linear current amplifying unit is straight coupling type, and is equipped with 12 road Current amplifier channels, can realize three-phase current per road while export.
5. a kind of power amplifier for electromagnetic transient simulation platform according to claim 1, which is characterized in that described
Linear voltage amplifying unit is straight coupling type, and is equipped with 12 tunnel voltage amplification channels, can realize three-phase voltage per road while export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721543112.7U CN207909008U (en) | 2017-11-17 | 2017-11-17 | A kind of power amplifier for electromagnetic transient simulation platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721543112.7U CN207909008U (en) | 2017-11-17 | 2017-11-17 | A kind of power amplifier for electromagnetic transient simulation platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207909008U true CN207909008U (en) | 2018-09-25 |
Family
ID=63570852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721543112.7U Active CN207909008U (en) | 2017-11-17 | 2017-11-17 | A kind of power amplifier for electromagnetic transient simulation platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207909008U (en) |
-
2017
- 2017-11-17 CN CN201721543112.7U patent/CN207909008U/en active Active
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