CN1172429C - High voltage large power frequency-stabilizing voltage regulator - Google Patents
High voltage large power frequency-stabilizing voltage regulator Download PDFInfo
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- CN1172429C CN1172429C CNB021101957A CN02110195A CN1172429C CN 1172429 C CN1172429 C CN 1172429C CN B021101957 A CNB021101957 A CN B021101957A CN 02110195 A CN02110195 A CN 02110195A CN 1172429 C CN1172429 C CN 1172429C
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Abstract
The present invention discloses a high-voltage and large-power electric source with stabilized frequency and voltage, which relates to the technology of electric sources. The circuit of the electric source comprises a three-phase alternating current input circuit and a power unit module circuit, wherein a power unit module comprises a rectifier, a direct current filtering capacitor and an IGBT single-phase full-bridge inverter, and the input circuit is a three-phase transformer. The power unit module circuit can comprise 6 power unit modules, and each phase has 2 power unit modules which are connected with each other in series and connected with a reactor and a three-phase output transformer in succession. The power unit module circuit can also comprise 12, 15 or 21 power unit modules, and each corresponding phase has 4, 5 or 7 power unit modules which are connected with one another in series and respectively connected with the three-phase output transformer and a controller. The controller comprises a monolithic computer circuit, an industrial control computer and a logic program controller which are all connected with one another. The present invention provides a high-voltage and large-power electric source with stabilized frequency and voltage, which has the advantages of high power factor, no harmonic, high voltage stability, high efficiency and reasonable structure and can be widely used for the power supply of various electric appliances.
Description
Technical field
The invention belongs to the power electronics power technique fields, a kind of high voltage large power frequency-stabilizing voltage regulator that utilizes new high-pressure frequency-conversion fabrication techniques of more clearly saying so.
Background technology
Traditional interchange frequency-voltage stabilized power source has following shortcoming and defect: voltage is low, and power output is little, generally hundreds of, tens of, several are below KW even littler, are difficult to do big; Current waveform is poor, and high order and low-order harmonic are all very abundant, and the power factor under the load is low, often less than 0.9 even lower; Output stability is poor, more than output voltage instability, stability are difficult to accomplish very much; Efficient is low, general less than 0.9 even littler.In addition, existing AC power structure is reasonable inadequately, and when wherein certain part broke down, often complete machine quit work and waits to repair.Above-mentioned AC power is difficult to satisfy the requirement of various electrical appliances to AC power.
Purpose of the present invention is to overcome above-mentioned shortcoming and defect, and the stability height, efficient height of a kind of high voltage, high-power, High Power Factor, no harmonic wave,, output voltage little to the pollution of electrical network, high voltage large power frequency-stabilizing voltage regulator rational in infrastructure are provided.
Summary of the invention
In order to achieve the above object, high voltage large power frequency-stabilizing voltage regulator of the present invention is made of shell and the electric wiring that is installed in the shell.Electric wiring is made of three-phase AC input circuit and the power unit module circuit that is connected with three-phase AC input circuit.Power unit module is made up of rectifier, the DC filter capacitors that is connected with rectifier and IGBT (insulated gate bipolar transistor npn npn) single-phase full-bridge inverter that is connected with DC filter capacitors.The power unit module technology that the present invention adopts has made things convenient for I﹠M, has improved the reliability of power supply greatly.In the course of work of power supply, when some unit break down, its auto by pass can be cut out system and do not influence the operation of other unit.And, can send alarm signal, the prompting relevant personnel change.
Three-phase AC input circuit can be a three-phase isolation transformer.The power unit module circuit can be made up of 6 power unit modules, and every have 2 power unit modules to connect mutually.The power unit module circuit also successively is connected with the three-phase output transformer with reactor.This is the power supply by 2 power unit module series connection.
Three-phase AC input circuit also can be a phase shifting transformer.The power unit module circuit can be made up of 12 power unit modules, and every have 4 power unit modules to connect mutually.The power unit module circuit also is connected with controller with the three-phase output transformer respectively.Controller then is made up of single chip circuit, industrial control computer and the PLC (logic programming controller) of interconnection.This is the power supply by 4 power unit module series connection.
Three-phase AC input circuit also can be a phase shifting transformer.The power unit module circuit then is made up of 15 power unit modules, and every have 5 power unit modules to connect mutually.The power unit module circuit also is connected with controller with the three-phase output transformer respectively, and controller is made up of single chip circuit, industrial control computer and the logic programming controller of interconnection.This is the power supply by 5 power unit module series connection.
Three-phase AC input circuit also can be a phase shifting transformer.The power unit module circuit then is made up of 21 power unit modules, and every have 7 power unit modules to connect mutually.The power unit module circuit also is connected with controller with the three-phase output transformer respectively, and controller is made up of single chip circuit, industrial control computer and the logic programming controller of interconnection.This is the power supply by 7 power unit module series connection.
Above-mentioned power supply of the present invention adopts the commutation technique of multistage phase shift stack, has improved the waveform of electric current greatly, has reduced input current harmonics, makes the power factor under its load approach 1.
Its output inverter has partly adopted the direct overlapped in series technology with independent DC power supply single-phase bridge SPWM inverter, reduced the low-order harmonic of output voltage, made things convenient for the adjusting of output voltage, the stable state and the dynamic voltage balancing problem of switching device series connection have been eliminated, reduced the switching frequency of single switch device, improved inversion efficiency, can guarantee input voltage in+10%～-15% excursion, output voltage stabilization is constant.
Controller core is realized by high-speed microprocessor and the collaborative computing of Industry Control PC.Well-designed algorithm can guarantee that system reaches optimum performance.The Industry Control PC provides full Chinese Windows monitoring and operation interface, can realize remote monitoring and networking control simultaneously.Controller also comprises a built-in PLC (logic programming controller), is used for the logical process of switching signal in the cabinet and the coordination of on-the-spot various operation signal and status signal, has strengthened the flexibility of system.
Adopt VME standard container body structure on the controller architecture.Each control unit plate adopts large scale integrated circuit and surface soldered technology such as FPGA, CPLD, makes system have high reliability.
In addition, adopt optical fiber communication technology between controller and the power cell, low-pressure section and high-pressure section are reliable fully isolates, and makes system have high fail safe.Simultaneously, it has good Electro Magnetic Compatibility, strong anti-interference performance.
Task of the present invention comes to this and finishes.
The invention provides the stability height, efficient height of a kind of high voltage, high-power, High Power Factor, no harmonic wave,, output voltage little, high voltage large power frequency-stabilizing voltage regulator rational in infrastructure to the pollution of electrical network.Its input voltage can reach 3000V～10000V, power output can reach 300KVA～6000KVA, and input power factor can reach 0.95～0.99, and gross efficiency can be up to 92%, the output voltage setting range is 100V～10000V, and the output frequency setting range is 40～120HZ.It can be widely used in the power supply of various electrical appliances.
Description of drawings
Fig. 1 is the circuit diagram of power unit module of the present invention.
Fig. 2 is every electrical schematic diagram that the power supply of 2 power unit module series connection is arranged mutually.
Fig. 3 is every electrical schematic diagram that the power supply of 4 power unit module series connection is arranged mutually.
Fig. 4 is every electrical schematic diagram that the power supply of 5 power unit module series connection is arranged mutually.
Fig. 5 is every electrical schematic diagram that the power supply of 7 power unit module series connection is arranged mutually.
Shown in Figure 1, electric wiring is made of three-phase AC input circuit 1 and power unit module circuit 2.Power unit module 6 is made up of rectifier 3, DC filter capacitors 4 and IGBT single-phase full-bridge inverter 5.Power unit module circuit 2 is made up of 1 power unit module 6.
Shown in Figure 2, three-phase AC input circuit 1 of the present invention is a three-phase isolation transformer.Power unit module circuit 2 is made up of 6 power unit modules 6, and every have 2 power unit modules 6 to connect mutually.Power unit module circuit 2 also successively is connected with three-phase output transformer 8 with reactor 7.
Shown in Figure 3, three-phase AC input circuit 1 of the present invention is a phase shifting transformer.Power unit module circuit 2 is made up of 12 power unit modules 6, and every have 4 power unit modules 6 to connect mutually.Power unit module circuit 2 also is connected with controller 9 with three-phase output transformer 8 respectively.Controller 9 is made up of single chip circuit 10, industrial control computer 11 and the logic programming controller 12 of interconnection.Its input voltage is 3KV.
Shown in Figure 4, power unit module circuit 2 of the present invention is made up of 15 power unit modules 6, and every have 5 power unit modules 6 to connect mutually.Its input voltage is 6KV.
Shown in Figure 5, power unit module circuit 2 of the present invention is made up of 21 power unit modules 6, and every have 7 power unit modules 6 to connect mutually.Its input voltage is 10KV.
Embodiment
Embodiments of the invention are as follows:
Embodiment 1.A kind of high voltage large power frequency-stabilizing voltage regulator, as shown in Figure 1.It is made of shell and the electric wiring that is installed in the shell.Electric wiring is made of three-phase AC input circuit and the power unit module circuit that is connected with three-phase AC input circuit.Power unit module is made up of rectifier, DC filter capacitors and IGBT single-phase full-bridge inverter.
Embodiment 2.A kind of high voltage large power frequency-stabilizing voltage regulator, as shown in Figure 2.Its three-phase AC input circuit is a three-phase isolation transformer, and the power unit module circuit is made up of 6 power unit modules, and every have 2 power unit modules to connect mutually, and the power unit module circuit also successively is connected with the three-phase output transformer with reactor.
Embodiment 3.A kind of high voltage large power frequency-stabilizing voltage regulator, as shown in Figure 3.Its three-phase AC input circuit is a phase shifting transformer.The power unit module circuit is made up of 12 power unit modules, and every have 4 power unit modules to connect mutually.The power unit module circuit also is connected with controller with the three-phase output transformer respectively, and controller is made up of single chip circuit, industrial control computer and the logic programming controller of interconnection.
Embodiment 4.A kind of high voltage large power frequency-stabilizing voltage regulator, as shown in Figure 4.Its power unit module circuit is made up of 15 power unit modules, and every have 5 power unit modules to connect mutually.Input voltage is 6KV.All the other are with embodiment 3.
Embodiment 5.A kind of high voltage large power frequency-stabilizing voltage regulator, as shown in Figure 5.Its power unit module circuit is made up of 21 power unit modules, and every have 7 power unit modules to connect mutually.Input voltage is 10KV.All the other are with embodiment 3.
Embodiment 1～embodiment 5 is a kind of High Power Factor, no harmonic wave, voltage stability height, efficient height, high voltage large power frequency-stabilizing voltage regulator rational in infrastructure, can be widely used in the power supply of various electrical appliances.
Claims (4)
1. high voltage large power frequency-stabilizing voltage regulator, it is made of shell and the electric wiring that is installed in the shell, electric wiring is made of three-phase AC input circuit and the power unit module circuit that is connected with three-phase AC input circuit, power unit module is by rectifier, DC filter capacitors that is connected with rectifier and the IGBT single-phase full-bridge inverter that is connected with DC filter capacitors are formed, it is characterized in that said three-phase AC input circuit is a three-phase isolation transformer, the power unit module circuit is made up of 6 power unit modules, every have 2 power unit modules to connect mutually, and the power unit module circuit also successively is connected with the three-phase output transformer with reactor.
2. high voltage large power frequency-stabilizing voltage regulator, it is made of shell and the electric wiring that is installed in the shell, electric wiring is made of three-phase AC input circuit and the power unit module circuit that is connected with three-phase AC input circuit, power unit module is by rectifier, DC filter capacitors that is connected with rectifier and the IGBT single-phase full-bridge inverter that is connected with DC filter capacitors are formed, it is characterized in that said three-phase AC input circuit is a phase shifting transformer, the power unit module circuit is made up of 12 power unit modules, every have 4 power unit modules to connect mutually, the power unit module circuit also is connected with controller with the three-phase output transformer respectively, and controller is by the single chip circuit of interconnection, industrial control computer and logic programming controller are formed.
3. high voltage large power frequency-stabilizing voltage regulator, it is made of shell and the electric wiring that is installed in the shell, electric wiring is made of three-phase AC input circuit and the power unit module circuit that is connected with three-phase AC input circuit, power unit module is by rectifier, DC filter capacitors that is connected with rectifier and the IGBT single-phase full-bridge inverter that is connected with DC filter capacitors are formed, it is characterized in that said three-phase AC input circuit is a phase shifting transformer, the power unit module circuit is made up of 15 power unit modules, every have 5 power unit modules to connect mutually, the power unit module circuit also is connected with controller with the three-phase output transformer respectively, and controller is by the single chip circuit of interconnection, industrial control computer and logic programming controller are formed.
4. high voltage large power frequency-stabilizing voltage regulator, it is made of shell and the electric wiring that is installed in the shell, electric wiring is made of three-phase AC input circuit and the power unit module circuit that is connected with three-phase AC input circuit, power unit module is by rectifier, DC filter capacitors that is connected with rectifier and the IGBT single-phase full-bridge inverter that is connected with DC filter capacitors are formed, it is characterized in that said three-phase AC input circuit is a phase shifting transformer, the power unit module circuit is made up of 21 power unit modules, every have 7 power unit modules to connect mutually, the power unit module circuit also is connected with controller with the three-phase output transformer respectively, and controller is by the single chip circuit of interconnection, industrial control computer and logic programming controller are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021101957A CN1172429C (en) | 2002-03-21 | 2002-03-21 | High voltage large power frequency-stabilizing voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021101957A CN1172429C (en) | 2002-03-21 | 2002-03-21 | High voltage large power frequency-stabilizing voltage regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1378332A CN1378332A (en) | 2002-11-06 |
| CN1172429C true CN1172429C (en) | 2004-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021101957A Expired - Fee Related CN1172429C (en) | 2002-03-21 | 2002-03-21 | High voltage large power frequency-stabilizing voltage regulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100459395C (en) * | 2006-04-12 | 2009-02-04 | 章祖文 | Adjustable frequency-stabilizing voltage-stabilizing variable-frequency variable-voltage power supply |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521468B (en) * | 2008-11-14 | 2010-09-29 | 浙江大学 | High-frequency three-phase medium-voltage power supply rectifier |
| CN106849691A (en) * | 2017-01-23 | 2017-06-13 | 青岛天信电气有限公司 | A kind of method of mining 10KV explosion-proof frequency converters and its control motor |
-
2002
- 2002-03-21 CN CNB021101957A patent/CN1172429C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100459395C (en) * | 2006-04-12 | 2009-02-04 | 章祖文 | Adjustable frequency-stabilizing voltage-stabilizing variable-frequency variable-voltage power supply |
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| Publication number | Publication date |
|---|---|
| CN1378332A (en) | 2002-11-06 |
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