CN103176143A - Energy-saving aging circuit of inverter - Google Patents
Energy-saving aging circuit of inverter Download PDFInfo
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- CN103176143A CN103176143A CN 201110450539 CN201110450539A CN103176143A CN 103176143 A CN103176143 A CN 103176143A CN 201110450539 CN201110450539 CN 201110450539 CN 201110450539 A CN201110450539 A CN 201110450539A CN 103176143 A CN103176143 A CN 103176143A
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Abstract
The invention discloses an energy-saving aging circuit of an inverter. The energy-saving aging circuit comprises a control circuit, an inverter power source, a load circuit subjected to aging test, a relay, a feedback circuit and a coupling capacitor, wherein the relay is used for connecting or disconnecting a power supply loop composed of the inverter power source and the load circuit, the feedback circuit is used for converting output direct current of the load circuit into alternating current and feeding back the alternating current to a power grid, and the coupling circuit is serially connected between the load circuit and the feedback circuit. The control circuit comprises a controller, a relay circuit, a first alternating voltage measurement circuit, a second alternating voltage measurement circuit, a synchronizing signal generation circuit, a first hysteresis control circuit, a second hysteresis control circuit, a first current conditioning circuit, a second current conditioning circuit, a direct voltage measuring circuit and an alarm circuit. The energy-saving aging circuit is capable of accurately controlling discharging current of a tested power source as well as feeding back energy discharged by the tested power source to the power grid in a pollution-free mode so as to achieve recycling of energy, can be used for occasions of motor brake energy feedback and the like, and has excellent technical expansibility.
Description
Technical field
The present invention relates to a kind of circuit, particularly relate to a kind of energy-saving ageing circuit of inverter.
Background technology
At present, domestic aging scheme to high-power ac power such as UPS, generator, inverter etc. adopts and mainly contains large ohmic load discharge test and the test of conventional AC electronic load, wherein the load that provides of large ohmic load discharge test can not be regulated continuously, and the electric energy that tested power supply is discharged all expends, and causes energy-conservation the disagreing of mass energy waste.Also have and adopt half control type device thyristor to carry out active inversion, realize the regeneration of energy, what take due to thyristor is phased approach, and in operational process, current on line side contains a large amount of harmonic waves, and power factor (PF) is low.The high-frequency PWM rectifier can address the above problem, and it can realize the two-way flow of energy, makes rectifier current on line side sineization, and can run on specific power factor state.
Summary of the invention
Technical matters to be solved by this invention is for above-mentioned deficiency of the prior art, a kind of energy-saving ageing circuit of inverter is provided, can accurately control tested power supply discharge current and the energy that tested power supply discharges contamination-freely can be fed back on electrical network again, realize the regeneration of the energy.
for solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of energy-saving ageing circuit of inverter, it is characterized in that: comprise control circuit, inverter power supply, be carried out burn-in test load circuit, be used for turning on and off the relay of the current supply circuit that inverter power supply and load circuit form, direct current that load circuit is exported is converted to alternating current and feeds back to the feedback circuit of electrical network, and be connected on the coupling capacitance between load circuit and feedback circuit, described control circuit comprises controller, join with relay and controller respectively and be used for to drive the relay circuit of relay work, the alternating voltage of sampling input load circuit also is converted to direct current signal and through the alternating current voltage measuring circuit one of input control device after the linearization step-down, the alternating voltage of sampling feedback circuit output also is converted to direct current signal and through the alternating current voltage measuring circuit two of input control device after the linearization step-down, catch inverter power supply output sinusoidal voltage phase place and frequency and described sine voltage signal is converted to the circuit for generating synchronous signals of square-wave signal, be respectively used to stagnant loop control circuit one and the stagnant loop control circuit two of the power switch pipe in control load circuit and feedback circuit, to synthesize with the electric current that comes from the load circuit collection and its frequency and phase place are reached from the electric current of controller output and control the current regulating circuit one that requires, gather electric current and its function current regulating circuit two identical with current regulating circuit one of feedback circuit, the DC voltage measuring circuit that described coupling capacitance both end voltage is measured and the warning circuit that joins with controller, described relay joins with inverter power supply and load circuit respectively, described feedback circuit and electrical network join, described circuit for generating synchronous signals and alternating current voltage measuring circuit one all join with inverter power supply, described alternating current voltage measuring circuit two joins with feedback circuit and controller respectively, described DC voltage measuring circuit joins with described coupling capacitance and controller respectively, described stagnant loop control circuit one joins with load circuit, described stagnant loop control circuit two joins with feedback circuit, described stagnant loop control circuit one, load circuit and controller all join with current regulating circuit one, described stagnant loop control circuit two, feedback circuit and controller all join with current regulating circuit two, described circuit for generating synchronous signals and controller join.
The energy-saving ageing circuit of above-mentioned a kind of inverter is characterized in that: described controller is digital signal processor DSP.
The energy-saving ageing circuit of above-mentioned a kind of inverter is characterized in that: also comprise the display circuit that joins with controller.
The present invention compared with prior art has the following advantages: can accurately control tested power supply discharge current and can contamination-freely feed back to the energy that tested power supply discharges on electrical network again, realized the regeneration of the energy, also can be used for the occasions such as motor braking energy feedback, have good technique extension.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is assembling schematic diagram of the present invention.
Description of reference numerals:
The 1-controller; The 2-inverter power supply; The 3-load circuit;
The 4-relay; The 5-electrical network; The 6-feedback circuit;
The 7-relay circuit; 8-alternating current voltage measuring circuit one;
9-alternating current voltage measuring circuit two; The 10-circuit for generating synchronous signals;
The stagnant loop control circuit one of 11-; The stagnant loop control circuit two of 12-;
13-current regulating circuit one; 14-current regulating circuit two;
The 15-DC voltage measuring circuit.
Embodiment
as shown in Figure 1, the present invention includes control circuit, inverter power supply 2, be carried out burn-in test load circuit 3, be used for turning on and off the relay 4 of the current supply circuit that inverter power supply 2 and load circuit 3 form, the direct current of load circuit 3 outputs is converted to alternating current and feeds back to the feedback circuit 6 of electrical network 5, and be connected on the coupling capacitance between load circuit 3 and feedback circuit 6, described control circuit comprises controller 1, join with relay 4 and controller 1 respectively and be used for driving the relay circuit 7 that relay 4 is worked, the alternating voltage of sampling input load circuit 3 also is converted to direct current signal and through the alternating current voltage measuring circuit 1 of input control device 1 after the linearization step-down, the alternating voltage of sampling feedback circuit 6 output also is converted to direct current signal and through the alternating current voltage measuring circuit 29 of input control device 1 after the linearization step-down, catch inverter power supply 2 output sinusoidal voltage phase place and frequency and described sine voltage signal is converted to the circuit for generating synchronous signals 10 of square-wave signal, be respectively used to stagnant loop control circuit 1 and the stagnant loop control circuit 2 12 of the power switch pipe in control load circuit 3 and feedback circuit 6, to synthesize and its frequency and phase place are reached with the electric current that comes from load circuit 3 collections from the electric current of controller 1 output and control the current regulating circuit 1 that requires, gather electric current and its function current regulating circuit two 14 identical with current regulating circuit 1 of feedback circuit 6, the DC voltage measuring circuit 15 that described coupling capacitance both end voltage is measured and the warning circuit that joins with controller 1, described relay 4 joins with inverter power supply 2 and load circuit 3 respectively, described feedback circuit 6 joins with electrical network 5, described circuit for generating synchronous signals 10 and alternating current voltage measuring circuit 1 all join with inverter power supply 2, described alternating current voltage measuring circuit 29 joins with feedback circuit 6 and controller 1 respectively, described DC voltage measuring circuit 15 joins with described coupling capacitance and controller 1 respectively, described stagnant loop control circuit 1 joins with load circuit 3, described stagnant loop control circuit 2 12 joins with feedback circuit 6, described stagnant loop control circuit 1, load circuit 3 and controller 1 all join with current regulating circuit 1, described stagnant loop control circuit 2 12, feedback circuit 6 and controller 1 all join with current regulating circuit 2 14, described circuit for generating synchronous signals 10 joins with controller 1.
In the present embodiment, described controller 1 is digital signal processor DSP.
In the present embodiment, also comprise the display circuit that joins with controller 1.
The above; it is only preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalent structure of above embodiment being done according to the technology of the present invention essence changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (3)
1. the energy-saving ageing circuit of an inverter, it is characterized in that: comprise control circuit, inverter power supply (2), be carried out burn-in test load circuit (3), be used for turning on and off the relay (4) of the current supply circuit that inverter power supply (2) and load circuit (3) form, the direct current of load circuit (3) output is converted to alternating current and feeds back to the feedback circuit (6) of electrical network (5), and be connected on the coupling capacitance between load circuit (3) and feedback circuit (6), described control circuit comprises controller (1), join with relay (4) and controller (1) respectively and be used for driving the relay circuit (7) that relay (4) is worked, the alternating voltage of sampling input load circuit (3) also is converted to direct current signal and through the alternating current voltage measuring circuit one (8) of input control device (1) after the linearization step-down, the alternating voltage of sampling feedback circuit (6) output also is converted to direct current signal and through the alternating current voltage measuring circuit two (9) of input control device (1) after the linearization step-down, catch inverter power supply (2) output sinusoidal voltage phase place and frequency and described sine voltage signal is converted to the circuit for generating synchronous signals (10) of square-wave signal, be respectively used to stagnant loop control circuit one (11) and the stagnant loop control circuit two (12) of the power switch pipe in control load circuit (3) and feedback circuit (6), to synthesize with the electric current that comes from load circuit (3) collection and its frequency and phase place are reached from the electric current of controller (1) output and control the current regulating circuit one (13) that requires, gather electric current and its function current regulating circuit two (14) identical with current regulating circuit one (13) of feedback circuit (6), the DC voltage measuring circuit (15) that described coupling capacitance both end voltage is measured and the warning circuit that joins with controller (1), described relay (4) joins with inverter power supply (2) and load circuit (3) respectively, described feedback circuit (6) joins with electrical network (5), described circuit for generating synchronous signals (10) and alternating current voltage measuring circuit one (8) all join with inverter power supply (2), described alternating current voltage measuring circuit two (9) joins with feedback circuit (6) and controller (1) respectively, described DC voltage measuring circuit (15) joins with described coupling capacitance and controller (1) respectively, described stagnant loop control circuit one (11) joins with load circuit (3), described stagnant loop control circuit two (12) joins with feedback circuit (6), described stagnant loop control circuit one (11), load circuit (3) and controller (1) all join with current regulating circuit one (13), described stagnant loop control circuit two (12), feedback circuit (6) and controller (1) all join with current regulating circuit two (14), described circuit for generating synchronous signals (10) joins with controller (1).
2. according to the energy-saving ageing circuit of a kind of inverter claimed in claim 1, it is characterized in that: described controller (1) is digital signal processor DSP.
3. according to the energy-saving ageing circuit of claim 1 or 2 described a kind of inverter, it is characterized in that: also comprise the display circuit that joins with controller (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110450539 CN103176143A (en) | 2011-12-20 | 2011-12-20 | Energy-saving aging circuit of inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110450539 CN103176143A (en) | 2011-12-20 | 2011-12-20 | Energy-saving aging circuit of inverter |
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| Publication Number | Publication Date |
|---|---|
| CN103176143A true CN103176143A (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110450539 Pending CN103176143A (en) | 2011-12-20 | 2011-12-20 | Energy-saving aging circuit of inverter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226815A (en) * | 2016-12-14 | 2018-06-29 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of airborne AC power quality real-time monitoring system |
| CN110045162A (en) * | 2019-05-08 | 2019-07-23 | 湖南驰阳信息科技有限公司 | A kind of settable resilience electronic load control circuit |
| CN110146828A (en) * | 2019-05-27 | 2019-08-20 | 深圳市科赛电子有限公司 | A kind of alternating current electronic load module and aging testing system for inverter burn-in test |
-
2011
- 2011-12-20 CN CN 201110450539 patent/CN103176143A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226815A (en) * | 2016-12-14 | 2018-06-29 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of airborne AC power quality real-time monitoring system |
| CN110045162A (en) * | 2019-05-08 | 2019-07-23 | 湖南驰阳信息科技有限公司 | A kind of settable resilience electronic load control circuit |
| CN110146828A (en) * | 2019-05-27 | 2019-08-20 | 深圳市科赛电子有限公司 | A kind of alternating current electronic load module and aging testing system for inverter burn-in test |
| CN110146828B (en) * | 2019-05-27 | 2024-05-17 | 深圳市科赛电子有限公司 | Alternating current electronic load module for aging test of inverter power supply and aging test system |
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Application publication date: 20130626 |