CN204465351U - With the frequency converter of remote monitoring function - Google Patents
With the frequency converter of remote monitoring function Download PDFInfo
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- CN204465351U CN204465351U CN201520080254.9U CN201520080254U CN204465351U CN 204465351 U CN204465351 U CN 204465351U CN 201520080254 U CN201520080254 U CN 201520080254U CN 204465351 U CN204465351 U CN 204465351U
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- frequency converter
- remote monitoring
- monitoring function
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Abstract
The utility model provides a kind of frequency converter with remote monitoring function, belongs to Frequency Converter Control technical field.It solve frequency converter in prior art and not there is the problem of remote monitoring ability.The frequency converter of this band remote monitoring function comprises: rectification circuit, filter circuit, inverter circuit, isolated drive circuit, control circuit, GPRS unit, GPRS network and data monitor center, rectification circuit is used for changing the alternating current of input the direct current of pulsation into and exporting, filter circuit is connected with the output of rectification circuit, inverter circuit is connected with the output of filter circuit, isolated drive circuit is electrically connected with inverter circuit, control circuit is connected with isolated drive circuit, GPRS unit is connected with control circuit, GPRS unit is also connected with data monitor center by GPRS network.The frequency converter of this band remote monitoring function realizes long-range to data managements such as frequency converter information inquiry, editors.
Description
Technical field
The utility model belongs to Frequency Converter Control technical field, relates to a kind of frequency converter with remote monitoring function.
Background technology
Along with the raising of people's living standard, common people's awareness of safety is corresponding improve also.The particularly generation of elevator safety accident, engineering work safety accident, has aroused people and has paid close attention to inherently safe.The potential requirement of the fear of people to unknown things becomes care process from care results conversion, requires transparent procedures, visual.Concerning production equipment, require each key performance point of monitoring, production process is monitored in real time, gives warning in advance to high-risk event.Therefore, new requirement is proposed to the long distance detection of frequency converter.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, provides a kind of frequency converter with remote monitoring function, and the frequency converter of this band remote monitoring function can carry out remote monitoring, achieves frequency converter industrialization and informationization organically blends.
The purpose of this utility model realizes by following technical proposal: a kind of frequency converter with remote monitoring function, it is characterized in that, comprise: rectification circuit, filter circuit, inverter circuit, isolated drive circuit, control circuit, GPRS unit, GPRS network and data monitor center, described rectification circuit is used for changing the alternating current of input the direct current of pulsation into and exporting, described filter circuit is connected with the output of rectification circuit, described inverter circuit is connected with the output of filter circuit, described isolated drive circuit is electrically connected with inverter circuit, described control circuit is connected with isolated drive circuit, described GPRS unit is connected with control circuit, described GPRS unit is also connected with data monitor center by GPRS network.
The frequency converter of this band remote monitoring function, by rectification circuit, the direct current that the alternating current of input changes pulsation into is flowed to filter circuit, the direct current of pulsation is converted to level and smooth direct current and flows to inverter circuit by filter circuit, and low-voltage DC is converted to alternating current and outputs to action asynchronous machine completing whole major loop by inverter circuit; Wherein isolated drive circuit regulates the frequency and voltage that inversion exports, control circuit is monitored in real time each circuit part of frequency converter, process and is regulated, then carry out telecommunication by GPRS unit by GPRS network and data monitor center, realize wireless remote monitering.
In the frequency converter of above-mentioned band remote monitoring function, described rectification circuit is three-phase full wave rectifier circuit.Adopting diode rectification, is the direct current of pulsation by industrial frequency AC electric rectification, for subordinate's circuit.
In the frequency converter of above-mentioned band remote monitoring function, described filter circuit comprises four electric capacity, and four described electric capacity are in parallel again after connecting between two.Filtering part is responsible for the direct current of pulsation to become mild, eliminates peak current.
In the frequency converter of above-mentioned band remote monitoring function, described electric capacity is electrochemical capacitor.
In the frequency converter of above-mentioned band remote monitoring function, described inverter circuit is three-phase bridge PWM inverter circuit.Complete by inverter circuit this process of alternating current that direct current changes amplitude and frequency-adjustable into, thus control asynchronous machine.
In the frequency converter of above-mentioned band remote monitoring function, current sampling unit, voltage detection unit and pwm pulse control unit that described control circuit comprises DSP main control chip and is connected with DSP main control chip, described current sampling circuit is connected with the output of inverter circuit, and described voltage detecting circuit is connected with filter circuit output.Control circuit take dsp chip as core, under SVPWM calculation process, inversion system and asynchronous machine are regarded as an entirety to consider, model is fairly simple, also be convenient to the real-time control of microprocessor, and the output of every analog quantity, switching value and temperature detection complete every controlling functions of frequency converter.
In the frequency converter of above-mentioned band remote monitoring function, described rectification circuit be also in series with between filter circuit by a contactor and the charging resistor power-on protective circuit formed in parallel, described contactor is connected with control circuit.Fill an amplitude for resistance restriction charging current by access, prevent charging current from working the mischief to system.
Compared with prior art, the frequency converter of this band remote monitoring function has the following advantages: 1, Long-distance Control: to the comprehensive detection of automation equipment data, storage, running can be reviewed; 2, remote failure investigation: by analysis of failure information, can localizing faults exactly, for client saves the repair and maintenance time, reduces repair and maintenance personnel cost; 3, remote data management: realize automation equipment information inquiry and editor etc.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the frequency converter of this band remote monitoring function.
Fig. 2 is the circuit theory diagrams of the frequency converter of this band remote monitoring function.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1 and Figure 2, the frequency converter of this band remote monitoring function comprises: rectification circuit 1, filter circuit, inverter circuit, isolated drive circuit, power circuit, control circuit, GPRS unit, GPRS network and data monitor center.Rectification circuit 1 is for changing the alternating current of input the direct current of pulsation into and exporting; Filter circuit is connected with the output of rectification circuit 1, it should be noted that, rectification circuit 1 be also in series with between filter circuit by a contactor and the charging resistor power-on protective circuit formed in parallel, contactor is connected with control circuit; Inverter circuit is connected with the output of filter circuit; Isolated drive circuit is all electrically connected with inverter circuit with power circuit; Control circuit is connected with isolated drive circuit and power circuit; GPRS unit is connected with control circuit; GPRS unit is also connected with data monitor center by GPRS network.
In the present embodiment, rectification circuit is the three-phase full wave rectifier circuit be made up of six diodes.Adopting diode rectification, is the direct current of pulsation by industrial frequency AC electric rectification, for subordinate's circuit.Filter circuit comprises four electric capacity, and four electric capacity are in parallel again after connecting between two.Filtering part is responsible for the direct current of pulsation to become mild, eliminates peak current.Wherein, electric capacity is electrochemical capacitor.Inverter circuit is the three-phase bridge PWM inverter circuit be made up of six IGBT.Complete by inverter circuit this process of alternating current that direct current changes amplitude and frequency-adjustable into, thus control asynchronous machine.Current sampling unit, voltage detection unit, pwm pulse control unit that control circuit comprises DSP main control chip and is connected with DSP main control chip, current sampling circuit is connected with the output of inverter circuit, and voltage detecting circuit is connected with filter circuit output.In addition, control circuit also comprises the thermal-shutdown circuit and fan intelligent control circuit that existing frequency converter has.Control circuit take dsp chip as core, under SVPWM calculation process, inversion system and asynchronous machine are regarded as an entirety to consider, model is fairly simple, also be convenient to the real-time control of microprocessor, and the output of every analog quantity, switching value and temperature detection complete every controlling functions of frequency converter.GPRS unit adopts hardware-software in conjunction with design concept, realize the communication between CPU and GPRS module, that dissimilar multiple data that CPU exports separated, errorless, in good time passes through network, and then pass to remote monitoring data center, also in good time for the order at monitor data center CPU be can be sent to simultaneously, thus monitoring in real time, process, regulatory function realized.Data monitor center is responsible for user's setting of parameter in frequency converter runs or shuts down, change and supervision, realizes data managements such as frequency converter information inquiry, editors.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (7)
1. the frequency converter with remote monitoring function, it is characterized in that, comprise: rectification circuit, filter circuit, inverter circuit, isolated drive circuit, control circuit, GPRS unit, GPRS network and data monitor center, described rectification circuit is used for changing the alternating current of input the direct current of pulsation into and exporting, described filter circuit is connected with the output of rectification circuit, described inverter circuit is connected with the output of filter circuit, described isolated drive circuit is electrically connected with inverter circuit, described control circuit is connected with isolated drive circuit, described GPRS unit is connected with control circuit, described GPRS unit is also connected with data monitor center by GPRS network.
2. the frequency converter of band remote monitoring function according to claim 1, is characterized in that, described rectification circuit is three-phase full wave rectifier circuit.
3. the frequency converter of band remote monitoring function according to claim 2, is characterized in that, described filter circuit comprises four electric capacity, and four described electric capacity are in parallel again after connecting between two.
4. the frequency converter of band remote monitoring function according to claim 3, is characterized in that, described electric capacity is electrochemical capacitor.
5. the frequency converter of band remote monitoring function according to claim 4, is characterized in that, described inverter circuit is three-phase bridge PWM inverter circuit.
6. the frequency converter of band remote monitoring function according to claim 5, it is characterized in that, current sampling unit, voltage detection unit and pwm pulse control unit that described control circuit comprises DSP main control chip and is connected with DSP main control chip, described current sampling circuit is connected with the output of inverter circuit, and described voltage detecting circuit is connected with filter circuit output.
7. the frequency converter of the band remote monitoring function according to claim 1-6 any one; it is characterized in that; described rectification circuit be also in series with between filter circuit by contactor and the charging resistor power-on protective circuit formed in parallel, described contactor is connected with control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080254.9U CN204465351U (en) | 2015-02-05 | 2015-02-05 | With the frequency converter of remote monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520080254.9U CN204465351U (en) | 2015-02-05 | 2015-02-05 | With the frequency converter of remote monitoring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204465351U true CN204465351U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520080254.9U Expired - Fee Related CN204465351U (en) | 2015-02-05 | 2015-02-05 | With the frequency converter of remote monitoring function |
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| Country | Link |
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| CN (1) | CN204465351U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471279A (en) * | 2016-01-18 | 2016-04-06 | 烟台德和信电子技术有限公司 | Ultraviolet lamp drive power supply |
| CN108958107A (en) * | 2018-06-28 | 2018-12-07 | 华北科技学院 | A kind of electromotor remote control system and method |
-
2015
- 2015-02-05 CN CN201520080254.9U patent/CN204465351U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471279A (en) * | 2016-01-18 | 2016-04-06 | 烟台德和信电子技术有限公司 | Ultraviolet lamp drive power supply |
| CN108958107A (en) * | 2018-06-28 | 2018-12-07 | 华北科技学院 | A kind of electromotor remote control system and method |
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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: 20150708 Termination date: 20160205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |