CN108153281A - It is a kind of that tester of the dual power supply for throwing system is exchanged based on the output of high voltage constant pressure source power amplifier - Google Patents
It is a kind of that tester of the dual power supply for throwing system is exchanged based on the output of high voltage constant pressure source power amplifier Download PDFInfo
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- CN108153281A CN108153281A CN201711412330.1A CN201711412330A CN108153281A CN 108153281 A CN108153281 A CN 108153281A CN 201711412330 A CN201711412330 A CN 201711412330A CN 108153281 A CN108153281 A CN 108153281A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0286—Modifications to the monitored process, e.g. stopping operation or adapting control
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Abstract
The invention discloses the standby throwing system controllers of the AC power exported based on high voltage constant pressure source power amplifier; unit is given including signal processing; and give push-pull cascade output stage, power-amplifier stage that unit connect, sampling protection, output network with the signal processing; exchange output and modular power source; it is characterized in that; the signal processing gives unit and is configured to the alternating voltage feedback signal subtraction for exporting the exchange small voltage signal of external input with power-amplifier stage, exports the error signal of amplification；The push-pull output stage is configured to the positive half-wave of error signal and negative half-wave being amplified；The power-amplifier stage is configured to positive half-wave and negative half-wave carrying out power amplification, exports AC sine wave voltage；The output network configuration is that the phase compensation of capacitive and perception is carried out to the load of AC sine wave voltage；The sampling relaying configuration is that load turns off external given small-signal and output voltage when exceeding setting voltage or current threshold.
Description
Technical field
The invention belongs to test equipment technology more particularly to a kind of exchanges based on the output of high voltage constant pressure source power amplifier
Dual power supply for throwing system tester.
Background technology
In power generation and transmission process, to ensure power supply reliability, user is reduced to the maximum extent and is had a power failure, substation
With responsible consumer generally using dual power supply or more power supplys power supply mode spare each other, automatic change-over device of emergency (letter
Claim " backup auto-activating device ") it is the intelligent controlling device for realizing this function, safe and reliable operation ensures stand-by power supply automatic switching
It is successfully crucial.
The main test event of exchange dual power supply spare power is whether standby throwing controller can reliably act, standby each other
With.
Traditional standby throwing controller test device mainly adds AC three-phase alternating voltage by way of manual voltage regulation
It is thrown on controller standby, to detect the acting characteristic of control device.However there are many shortcomings, such as pressure regulation for such detection mode
The High voltage output that equipment is heavy, is not isolated may jeopardize testing crew personal safety, and result of the test dispersibility is higher etc..
To solve the above-mentioned problems, a kind of exchange of the single-phase up to 300V outputs based on large-power MOS part has been invented
Power supply spare power tester.This test device is with certain gain multiplying power amplified signal, so as to defeated according to given signal
Go out the reliable alternating voltage of precision, and amplitude, phase, frequency are independently adjustable, over all Integration is mounted in a chest, safely may be used
It leans on, is easy to carry.
Invention content
This exchange dual power supply based on the output of high voltage constant pressure source power amplifier is standby to throw system controller, is realized in：
Tester includes signal processing and gives unit and give the push-pull cascade output that unit connect with the signal processing
Grade, power-amplifier stage, sampling protection, output network, exchange output and modular power source.The signal processing gives unit configuration
Ac voltage signal and the alternating voltage feedback signal of power-amplifier stage output for power module is inputted do subtraction, defeated
Go out amplified error signal；The push-pull output stage is configured to the positive half-wave of error signal and negative half-wave being amplified；
The power-amplifier stage is configured to positive half-wave and negative half-wave carrying out power amplification, the AC sine wave electricity of output HIGH voltage
Pressure；The output network configuration is that the phase compensation of capacitive and perception is carried out to the load of AC sine wave voltage；Described
Sampling relaying configuration carries out power-off protection when exceeding voltage or current threshold for load.
As a kind of improvement in the present invention, the modular power source includes 220V and exchanges access interface, two-stage EMI filtering
Device, AC/DC modular power sources, first terminal and Second terminal, wherein the AC/DC modular power sources are set to two-stage EMI filtering
Between device.
As a kind of improvement in the present invention, the first terminal and Second terminal of the modular power source be connected separately with ±
450V power supplys, ± 450V power supplys are powered to triode J5027,2SK1968, ATP10050 of power amplifier.
As a kind of improvement in the present invention, the external given ac voltage signal (exchange of such as external generator output
Small-signal) for the given small-signal of exchange, the alternating voltage feedback signal AC regeneration small-signal that power-amplifier stage exports.
As a kind of improvement in the present invention, exchange output is connected with third terminal, forth terminal, and described the
Three terminals, forth terminal are connected to the standby throwing equipment input terminal of load to be measured, and sine voltage is provided for loading test set.
The present invention is protected the AC power exported based on high voltage constant pressure source power amplifier and is up to for the tester output of throwing system
The effective voltage value of AC300V, and the reliable alternating voltage output of gamut precision, also want amplitude, phase, frequency independently adjustable.
Description of the drawings
It in order to illustrate the embodiments of the present invention more clearly or embodiment of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description briefly to introduce.It should be evident that the accompanying drawings in the following description is the present invention
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the module frame chart of the present invention.
Fig. 2 is the schematic diagram of signal feeding processing unit of the present invention.
Fig. 3 is the schematic diagram of push-pull cascade output of the present invention.
Fig. 4 is the schematic diagram of power amplification of the present invention.
Fig. 5 is the schematic diagram of invention output network.
Fig. 6 is the schematic diagram of present invention sampling protection.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
The specific implementation of the present invention is described in detail below in conjunction with specific embodiment.
With reference to attached drawing 1~6, a kind of AC power based on the output of high voltage constant pressure source power amplifier is standby to throw system controller, packet
Signal processing is included to give unit and give push-pull cascade output stage that unit connect with the signal processing, power-amplifier stage, adopt
Sample protection, output network, exchange output and modular power source；
Specifically, signal processing gives unit and is configured to the exchange small voltage signal (0~7VRMS) of external given input
Subtraction is done with the alternating voltage feedback signal (0~7VRMS) of power-amplifier stage output, exports amplified error signal,
This element uses high-accuracy amplifier OPA2277UK, can ensure to export the stability of voltage signal to be amplified, by Z=1/ (2 π
Fc), wherein capacitance C1=200pF, R4=6.8K can calculate secondary amplification factor Au ≈ 8000.
Specifically, push-pull output stage is configured to put the positive half-wave of ac voltage signal to be amplified and negative half-wave
Greatly.This grade of triode is using high voltage triode J5027 and 2SK1968, by resistance R2 positive biases and R14 negative bias positive and negative
Half-wave amplifies, by triode grounded base circuit characteristic, Au=β Rc/ (rbe+ (1+ β) Re), by the He of β=100 of triode J5027
β=40 of triode 2SK1968, R2=4.7K, R7=6.6K, R9=6.6K, R14=2.7K calculate positive and negative half-wave and put respectively
Big multiple is 18 and 19.
Specifically, power-amplifier stage is configured to positive half-wave and negative half-wave carrying out power amplification, output AC sine wave electricity
Pressure.This grade accesses circuit using high voltage high-power MOSFET tube ATP10050, MOSFET in a manner of source follower, by
There is the characteristic source follower of MOS Current amplifier characteristic to carry out power amplification, and then driving load.The setting of gain：Avg=
K × Vo (Rf/R) changes the value of feedback the divider resistance Rf and R in circuit to change circuit amplification factor, and Vo is power amplifier output electricity
Pressure changes Rf and R resistance value sizes under conditions of Setting signal Vi is definite value, required so as to obtain to adjust closed loop gain
Output voltage values set Vi=7VRMS, by Au=43, obtain Avg=32.7, Vo=300V.
Specifically, output network configuration is that the phase compensation of capacitive and perception is carried out to the load of AC sine wave voltage；
CB1=100pF, R12=10K, when inductive load aggravates, the phase of output voltage will hysteresis offset, CB1 and R12 are just right
The phase lead compensation of lag；L1=6uH, R11=2 Ω, when capacitive load aggravates, the phase of output voltage will in advance partially
It moves, CB1 and R12 are just to advanced phase-lag compensation.
Specifically, it is disconnected automatically when sampling protection circuit configuration exceeds electricity setting pressure or current threshold for load external given
Small-signal.Setting output 20V disconnects output and protects, and RW1=6 Ω then sample the voltage of output 1.2V, by divider resistance
Triode is connected in the voltage of output 0.7 or so, and then drives optocoupler conducting, then the optocoupler signal of conducting to outer signal at
The given unit of reason, signal processing gives unit and disconnects Setting signal and output voltage, and then protects circuit devcie.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in protection scope of the present invention.
Claims (5)
1. a kind of AC power based on the output of high voltage constant pressure source power amplifier is standby to throw system controller, including signal processing to order
Member and push-pull cascade output stage, power-amplifier stage that unit connect, sampling protection, output network are given with the signal processing,
Exchange output and modular power source, which is characterized in that the signal processing give unit be configured to the exchange of external input is small
Voltage signal and the alternating voltage feedback signal subtraction of power-amplifier stage output export the error signal of amplification；Described
Push-pull output stage is configured to the positive half-wave of error signal and negative half-wave being amplified；The power-amplifier stage is configured to will just
Half-wave and negative half-wave carry out power amplification, export AC sine wave voltage；The output network configuration is to AC sine wave
The load of voltage carries out the phase compensation of capacitive and perception；The sampling relaying configuration is load beyond setting voltage or electric current
External given small-signal and output voltage are turned off during threshold value.
2. the AC power of high voltage constant pressure source power amplifier output as described in claim 1 is standby to throw system controller, it is characterised in that：
The modular power source includes 220V and exchanges access interface, two-stage electromagnetic interface filter, AC/DC modular power sources, first terminal and second
Terminal, wherein the AC/DC modular power sources are set between two-stage electromagnetic interface filter.
3. the AC power of high voltage constant pressure source power amplifier output as described in claim 1 is standby to throw system controller, which is characterized in that
The first terminal and Second terminal of the modular power source are connected separately with ± 450V power supplys, while are linked into the power-amplifier stage
Input terminal.
4. the AC power of high voltage constant pressure source power amplifier output as described in claim 1 is standby to throw system controller, the signal
The given unit of processing is configured to the ac voltage signal for inputting power module and the alternating voltage of power-amplifier stage output is fed back
Signal makes the difference, and exports ac voltage signal to be amplified；It is characterized in that, the ac voltage signal of power module input is exchange
Given small-signal, the alternating voltage feedback signal AC regeneration small-signal of power-amplifier stage output.
5. the AC power of high voltage constant pressure source power amplifier output as described in claim 1 is standby to throw system controller, which is characterized in that
The exchange output is connected with third terminal, forth terminal, and it is standby that the third terminal, forth terminal are connected to load to be measured
Equipment input terminal is thrown, sine voltage is provided for loading test set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711412330.1A CN108153281B (en) | 2017-12-23 | 2017-12-23 | It is a kind of that dual power supply is exchanged for the tester of throwing system based on the output of high voltage constant pressure source power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711412330.1A CN108153281B (en) | 2017-12-23 | 2017-12-23 | It is a kind of that dual power supply is exchanged for the tester of throwing system based on the output of high voltage constant pressure source power amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108153281A true CN108153281A (en) | 2018-06-12 |
| CN108153281B CN108153281B (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711412330.1A Expired - Fee Related CN108153281B (en) | 2017-12-23 | 2017-12-23 | It is a kind of that dual power supply is exchanged for the tester of throwing system based on the output of high voltage constant pressure source power amplifier |
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| CN (1) | CN108153281B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090091958A1 (en) * | 2007-10-03 | 2009-04-09 | Kao Hung-Hsiang | Device for simulating rectified constant impedance load and method thereof |
| CN101509955A (en) * | 2009-03-26 | 2009-08-19 | 四川电力试验研究院 | Automatic test system of dc circuit breaker characteristic parameter |
| CN201392392Y (en) * | 2009-03-13 | 2010-01-27 | 江苏省电力公司常州供电公司 | Experiment tester of pare power automatic switching device |
| CN101750555A (en) * | 2008-12-12 | 2010-06-23 | 江苏省电力公司扬州供电公司 | Spare automatic switching comprehensive tester |
| CN102621417A (en) * | 2012-03-26 | 2012-08-01 | 中铁八局集团电务工程有限公司 | Method for testing automatic throw-in equipment of emergency power supply |
| CN103308797A (en) * | 2013-05-22 | 2013-09-18 | 江苏省电力公司常州供电公司 | Intelligent automatic standby power supply switching device calibration system |
| CN203981790U (en) * | 2014-05-29 | 2014-12-03 | 国网山西省电力公司电力科学研究院 | A kind of combined type backup auto-activating device tester |
| CN204314400U (en) * | 2014-12-02 | 2015-05-06 | 深圳市广明科技有限公司 | Auto-switch-on integrated tester |
| CN205210230U (en) * | 2015-11-27 | 2016-05-04 | 云南电网有限责任公司电力科学研究院 | A high voltage output device for feeder automation test |
-
2017
- 2017-12-23 CN CN201711412330.1A patent/CN108153281B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090091958A1 (en) * | 2007-10-03 | 2009-04-09 | Kao Hung-Hsiang | Device for simulating rectified constant impedance load and method thereof |
| CN101750555A (en) * | 2008-12-12 | 2010-06-23 | 江苏省电力公司扬州供电公司 | Spare automatic switching comprehensive tester |
| CN201392392Y (en) * | 2009-03-13 | 2010-01-27 | 江苏省电力公司常州供电公司 | Experiment tester of pare power automatic switching device |
| CN101509955A (en) * | 2009-03-26 | 2009-08-19 | 四川电力试验研究院 | Automatic test system of dc circuit breaker characteristic parameter |
| CN102621417A (en) * | 2012-03-26 | 2012-08-01 | 中铁八局集团电务工程有限公司 | Method for testing automatic throw-in equipment of emergency power supply |
| CN103308797A (en) * | 2013-05-22 | 2013-09-18 | 江苏省电力公司常州供电公司 | Intelligent automatic standby power supply switching device calibration system |
| CN203981790U (en) * | 2014-05-29 | 2014-12-03 | 国网山西省电力公司电力科学研究院 | A kind of combined type backup auto-activating device tester |
| CN204314400U (en) * | 2014-12-02 | 2015-05-06 | 深圳市广明科技有限公司 | Auto-switch-on integrated tester |
| CN205210230U (en) * | 2015-11-27 | 2016-05-04 | 云南电网有限责任公司电力科学研究院 | A high voltage output device for feeder automation test |
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| CN108153281B (en) | 2019-07-19 |
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Granted publication date: 20190719 Termination date: 20191223 |