CN201113884Y - Digital generator set energy-saving inversion controller - Google Patents
Digital generator set energy-saving inversion controller Download PDFInfo
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- CN201113884Y CN201113884Y CNU2007201148425U CN200720114842U CN201113884Y CN 201113884 Y CN201113884 Y CN 201113884Y CN U2007201148425 U CNU2007201148425 U CN U2007201148425U CN 200720114842 U CN200720114842 U CN 200720114842U CN 201113884 Y CN201113884 Y CN 201113884Y
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- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000004804 winding Methods 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 12
- 238000002955 isolation Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses an energy-saving inverting controller for a digital generating unit and is characterized in that: the utility model comprises a main circuit and a control circuit, wherein, the main circuit comprises a three-phase rectifying circuit, a switch circuit and an output filtering circuit, the three-phase rectifying circuit is provided with a three-phase semi-control bridge MFS which is isolated by a 1:1 transformer and then is rectified and voltage-stabilized to provide a power supply, the switch circuit is provided with four insulated gate bipolar transistors IGBT, a semi-control bridge conduction angle control circuit is connected with the control end of the three-phase semi-control bridge MFS, an output voltage detection circuit, an output current detection circuit, a rotating speed detection circuit and a stepping motor driving circuit in the control circuit are respectively connected with the input end of a high-speed 16-bit microcontroller MCU, a driving circuit of the insulated gate bipolar transistors IGBT is connected with the output end of the high-speed 16-bit microcontroller MCU and the insulated gate bipolar transistors IGBT, and a power supply of the control circuit is provided by making rectification and voltage regulation to the input of a secondary winding voltage alternating power supply.
Description
Technical field
The utility model relates to the digital electricity generating group, relate in particular to and a kind ofly be used to control generator output becoming sine voltage and, belong to inversion, control technology field according to the energy-saving inversion controller of the digital electricity generating group of the different adjustment stabilized (steady-state) speed (energy-conservation) of power output.
Background technology
The mobile model supply unit is such as engine-driven alternating current generator, in order to stablize its output voltage and frequency, adopt the AVR burning voltage, use mechanical speed governors to come stabilized frequency, this kind generator waveform is poor, the electric voltage frequency instability, even rotating speed is the same with full load when zero load, waste energy.In recent years along with development of electronic technology, use the more and more of DC-to-AC converter, the alternating current generating sets of this form is in order to keep output voltage stabilization, the general feedback that adopts is controlled output voltage, in order further to obtain only to adopt the feedback of output voltage near sine wave is not enough, preferably output waveform is carried out FEEDBACK CONTROL, and the control circuit of the feed back control system of output waveform is controlled by analog circuit mostly, its control circuit complexity, debugging trouble, and have temperature drift.
Summary of the invention
The purpose of this utility model is in order to overcome the shortcoming that prior art exists, the energy-saving inversion controller that a kind of inverter hardware circuit is simple, debugging is convenient, avoid the digital electricity generating group of temperature drift to be provided.
The technical scheme of the energy-saving inversion controller of the utility model digital electricity generating group is: it is characterized in that comprising main circuit and control circuit, main circuit comprises rectified three-phase circuit, switching circuit and output filter circuit, rectified three-phase circuit has three-phase half controlled bridge MFS, three-phase half controlled bridge MFS working power is provided by auxiliary winding rectifying and voltage-stabilizing after 1: 1 transformer isolation, and switching circuit has four insulated gate bipolar transistor IGBTs; Control circuit comprises the drive circuit of half control bridge angle of flow control circuit, high speed 16 8-digit microcontroller MCU, output voltage detecting circuit, output current detection circuit, speed detect circuit, stepper motor driving circuit and insulated gate bipolar transistor IGBT; Half control bridge angle of flow control circuit is connected with three-phase half controlled bridge MFS control end, output voltage detecting circuit, output current detection circuit, speed detect circuit and stepper motor driving circuit are connected with the input of high speed 16 8-digit microcontroller MCU respectively, the drive circuit of insulated gate bipolar transistor IGBT is connected with high speed 16 8-digit microcontroller MCU outputs, the drive circuit of insulated gate bipolar transistor IGBT is connected with insulated gate bipolar transistor IGBT, and the control circuit power supply is provided through rectifying and voltage-stabilizing by the input of auxiliary winding voltage AC power.
The energy-saving inversion controller of the utility model digital electricity generating group, adopt 16 8-digit microcontroller MCU at a high speed, the inner integrated DSP of this controller is handled nuclear, its main operational uses DSP nuclear digitized processing, common I/O operation, simple operation use microprocessor processes, and its load response speed is fast, and response reaches Millisecond, frequency stability ± 0.3Hz, voltage stability ± 3%; High speed insulated gate bipolar transistor IGBT full voltage SVPWM modulation, the voltage utilization height, switch noise is low, and switching loss is little; At a high speed 16 8-digit microcontroller MCU operate on the maximum power ratio engine according to the size adjustment engine speed of load, reach energy-conservation effect, remedied existing inverter hardware circuit complexity, debug difficulties, had the deficiency of temperature drift.Its half control bridge angle of flow control circuit detects direct voltage and set point compares the angle of flow of controlling the half control bridge, and then stable DC voltage; Output current detection circuit feeds back to output current signal at a high speed, and 16 8-digit microcontroller MCU are used for overcurrent protection; output voltage detecting circuit is given 16 8-digit microcontrollers at a high speed with the inverter output voltage signal feedback; speed detect circuit is used for the tach signal of detection of engine; high speed microprocessor of 16 bit MCU carries out high-speed computation with inverter output voltage signal and current signal and given voltage; use the space vector algorithm; pid algorithm obtains opening the turn-off time of insulated gate bipolar transistor IGBT, adopts saddle type ripple pulse width modulation controlled mode SVPWM to remove the output voltage of control inverter.
Description of drawings
Fig. 1 is the structural circuit figure of the energy-saving inversion controller of the utility model digital electricity generating group;
Fig. 2 is the circuit diagram that detects output voltage;
Fig. 3 is the circuit diagram that detects output current;
Fig. 4 is the circuit diagram of detection of engine rotating speed;
Fig. 5 is the drive circuit figure of insulated gate bipolar transistor IGBT.
Embodiment
The utility model discloses a kind of energy-saving inversion controller of digital electricity generating group, as shown in Figure 1, its major technology is characterised in that and comprises main circuit and control circuit, main circuit comprises rectified three-phase circuit 11, switching circuit 12 and output filter circuit 13, rectified three-phase circuit 11 has half control bridge MFS, three-phase half controlled bridge MFS working power is provided by auxiliary winding rectifying and voltage-stabilizing after 1: 1 transformer isolation, and switching circuit 12 comprises four insulated gate bipolar transistor IGBTs; Control circuit comprises half control bridge MFS angle of flow control circuit 21, high speed microprocessor of 16 bit MCU, detect the output detection circuit 23 of inverter output voltage, detect the output current detection circuit 24 of inverter output current, speed detect circuit 25, the drive circuit 27 of stepper motor driving circuit 26 and insulated gate bipolar transistor IGBT, half control bridge angle of flow control circuit 21 is connected with the control end of half control bridge MFS, output voltage detecting circuit 23 as shown in Figure 2, negative supply connecting resistance R300, R301 parallel resistance R302, another negative supply connecting resistance R313, R314 parallel resistance R315, through ceramic disc capacitor C302 decoupling, after removing clutter high frequency composition, one the tunnel connects the homophase high impedance input of operational amplifier U300B through resistance R 303 R304 in parallel, another road is through resistance R 316, R317 connects the output of operational amplifier U300B, meets ceramic disc capacitor C303 between the anti-phase high impedance input of operational amplifier U300B and the output; Output current detection circuit 24 as shown in Figure 3, current transformer TF500 detects the electric current of output after the rectification circuit of diode D500, D501, D502, D503 and ceramic disc capacitor C500, C501, C502, C505 composition is converted to voltage after delivering to sample resistance, again through resistance R 501, R504, R505, R506, diode D504 gives 16 8-digit microcontroller MCU at a high speed behind the filter circuit that tantalum capacitor C 503, C504 and operational amplifier U500A form; Frequency detection circuit 25 as shown in Figure 4, by diode D505, D506, D507, D508, ceramic disc capacitor C506, C507, C508, C509, C510, C511, C512, resistance R 507, R508, R509, R510, R511, R512, R513, R514, R515, light lotus root U502 and comparator U501B form; Stepper motor driving circuit 26 can be made up of step motor drive chip I R2113; The drive circuit 27 of insulated gate bipolar transistor IGBT as shown in Figure 5, by resistance R 800, R801, R802, R803, R804, R805, R806, R807, R808, R809, R810, R811, R812, R813, R814, R815, R816, R817, diode D800, D801, D802, D803, D804, D805, ceramic disc capacitor C802, C806, C808, C809, tantalum capacitor C 801, C805, C807, C810, C812, C813, the drive IC U800 of electrochemical capacitor C803, C811 and insulated gate bipolar transistor IGBT, U801 form; Output voltage detecting circuit 23, output current detection circuit 24 and speed detect circuit 25 are connected with the input of microcontroller MCU respectively, the input of stepper motor driving circuit 26 is connected with microcontroller MCU output with the drive circuit of insulated gate bipolar transistor IGBT 27 inputs, drive circuit 27 outputs of insulated gate bipolar transistor IGBT are connected with insulated gate bipolar transistor IGBT, and the power supply of control circuit provides the input of interchange low-voltage to provide through rectifying and voltage-stabilizing by auxiliary winding.Half control bridge angle of flow control circuit 21 detects direct voltage and set point compares the angle of flow of controlling half control bridge MFS, and then stable DC voltage; Output current detection circuit 24 feeds back to microcontroller MCU with output current signal and is used for overcurrent protection control, output voltage detecting circuit 23 is given microcontroller MCU with the inverter output voltage signal feedback, microcontroller MCU carries out inverter output voltage signal feeding value high-speed computation, obtains opening the turn-off time of insulated gate bipolar transistor IGBT with the space vector of voltage algorithm, adopts the wide modulation control mode of saddle type wave impulse SVPWM to remove the output voltage of control inverter; Output current detection circuit 24 and speed detect circuit 25 carry out computing with output current value and engine speed value, and the utilization pid algorithm makes engine be stabilized on the corresponding rotating speeds according to power output and works, reach energy-conservation effect.In actual manufacture process, high speed 16 8-digit microcontroller MCU can select DSPIC30F2020 for use or have the single-chip microcomputer of two-way PWM, DSPIC30F2020 cost performance height; The drive circuit 27 of insulated gate bipolar transistor IGBT can be selected FAN7382 driver or TLP250 driver or IR2113 driver for use, the TLP250 driver needs independent power supply, by contrast, the IR2113 driver will be stablized, so preferred plan can be used the IR2113 driver that is driven by two upper and lower bridge arms.
Claims (4)
1, the energy-saving inversion controller of digital electricity generating group, it is characterized in that comprising main circuit and control circuit, main circuit comprises rectified three-phase circuit (11), switching circuit (12) and output filter circuit (13), rectified three-phase circuit (11) has three-phase half controlled bridge (MFS), three-phase half controlled bridge (MFS) working power is provided by auxiliary winding rectifying and voltage-stabilizing after 1: 1 transformer isolation, and switching circuit (12) has four insulated gate bipolar transistors (IGBT); Control circuit comprises the drive circuit (27) of half control bridge angle of flow control circuit (21), high speed 16 8-digit microcontrollers (MCU), output voltage detecting circuit (23), output current detection circuit (24), speed detect circuit (25), stepper motor driving circuit (26) and insulated gate bipolar transistor (IGBT); Half control bridge angle of flow control circuit (21) is connected with three-phase half controlled bridge (MFS) control end, output voltage detecting circuit (23), output current detection circuit (24), speed detect circuit (25) is connected with the input of high speed 16 8-digit microcontrollers (MCU) respectively with stepper motor driving circuit (26), the drive circuit (27) of insulated gate bipolar transistor (IGBT) is connected with high speed 16 8-digit microcontrollers (MCU) output, the drive circuit (27) of insulated gate bipolar transistor (IGBT) is connected with insulated gate bipolar transistor (IGBT), and the control circuit power supply is provided through rectifying and voltage-stabilizing by the input of auxiliary winding voltage AC power.
2, the energy-saving inversion controller of digital electricity generating group as claimed in claim 1 is characterized in that described high speed 16 8-digit microcontrollers (MCU) are DSPIC30F2020 or the single-chip microcomputer that has two-way PWM.
3, the energy-saving inversion controller of digital electricity generating group as claimed in claim 1, the drive circuit (27) that it is characterized in that described insulated gate bipolar transistor (IGBT) are FAN7382 driver or TLP250 driver or IR2113 driver.
4, the energy-saving inversion controller of digital electricity generating group as claimed in claim 1, the drive circuit (27) that it is characterized in that described insulated gate bipolar transistor (IGBT) are the IR2113 drivers that is driven by two upper and lower bridge arms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201148425U CN201113884Y (en) | 2007-09-13 | 2007-09-13 | Digital generator set energy-saving inversion controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201148425U CN201113884Y (en) | 2007-09-13 | 2007-09-13 | Digital generator set energy-saving inversion controller |
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| Publication Number | Publication Date |
|---|---|
| CN201113884Y true CN201113884Y (en) | 2008-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201148425U Expired - Lifetime CN201113884Y (en) | 2007-09-13 | 2007-09-13 | Digital generator set energy-saving inversion controller |
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| Country | Link |
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| CN (1) | CN201113884Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388636B (en) * | 2007-09-13 | 2012-05-23 | 浙江安露清洗机有限公司 | Energy-saving inversion controller for digital electricity generating set |
-
2007
- 2007-09-13 CN CNU2007201148425U patent/CN201113884Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101388636B (en) * | 2007-09-13 | 2012-05-23 | 浙江安露清洗机有限公司 | Energy-saving inversion controller for digital electricity generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG ANLU WASHING MACHINE CO., LTD. Free format text: FORMER OWNER: CHEN JIMING Effective date: 20090410 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090410 Address after: Taizhou City, Zhejiang Province, Luqiao Jinqing Industrial Road No. 190, zip code: 318058 Patentee after: ZHEJIANG ANLU CLEANING MACHINERY CO., LTD. Address before: Taizhou City, Zhejiang Province, Luqiao Jinqing Industrial Road No. 190 anlou, zip code: 318058 Patentee before: Chen Jiming |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080910 |
|
| CX01 | Expiry of patent term |