CN201008129Y - Static electric power bidirectional reversible up-down voltage frequency converter - Google Patents
Static electric power bidirectional reversible up-down voltage frequency converter Download PDFInfo
- Publication number
- CN201008129Y CN201008129Y CNU2006201659290U CN200620165929U CN201008129Y CN 201008129 Y CN201008129 Y CN 201008129Y CN U2006201659290 U CNU2006201659290 U CN U2006201659290U CN 200620165929 U CN200620165929 U CN 200620165929U CN 201008129 Y CN201008129 Y CN 201008129Y
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- inverter
- filter
- phase
- voltage
- inductance
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Abstract
The utility model relates to a stillness electric double direction reversible buck-boost frequency changing device, wherein a front filter is connected with an inverter after passing a controllable coupler, a pump pressing device, the inverter is connected with a back filter. With different control function, the utility model is capable of supplying electric inversely, wherein the three phase alternating current is filtered by the filter, coupled by the insulation fence double electrode transistor and filtered to receive voltage in need. Voltage increasing or decreasing of the pump pressing device forms direct current voltage in need and produces three-phase four-wire alternating current electric of different frequency, which can be employed for motor soft start or frequency running. The utility model realizes double direction transmission, which is not only capable of changing frequency, increasing or decreasing voltage, but also capable of realizing transformation between the three-phase three-wire type and three-phase four-wire.
Description
Technical field: the utility model relates to a kind of static electric power bidirectional reversible buck converter plant.
Background technology: frequency converter generally is made up of rectifier, filter, drive circuit, protective circuit and controller parts such as (MCU/DSP).Generally before this single-phase or three-phase alternating-current supply were added on the inverter by rectifier and the direct voltage through forming the amplitude basic fixed behind the capacitor filtering, utilize the break-make control of inverter power element, make inverter output end obtain the rectangular pulse waveform of definite shape.Control its voltage magnitude by the width that changes rectangular pulse, control its output frequency modulation period by changing, thereby on inverter, carry out the control of output voltage and frequency simultaneously, thereby satisfy the requirement of frequency control the coordination control of U/f.The advantage of frequency converter (PWM) is can eliminate and the inhibition low-order harmonic, and load motor is moved under the alternating voltage of near sinusoidal ripple, and torque pulse is little, speed-regulating range width.Frequency converter has obtained extensive use at present.But at present, the output voltage of finished product frequency converter is less than or equal to input voltage, does not have direct current buck link, and both link fell in pump liter, pump, can only be from unidirectional soft start of input or converting operation.Can not realize that three-phase three-wire system and three-phase four-wire system change mutually.
Summary of the invention: the purpose of this utility model provides the two-way starting converting operation of a kind of energy and can realize the static electric power bidirectional reversible buck converter plant that phase three-wire three and three-phase four-wire system are changed mutually.Technical solution of the present utility model is, front end filter connects inverter through controlled chopper, pump pressure device, and inverter joins with the back end filter; The end of front end filter connects with an end of the igbt of controlled chopper, another terminating diode and the inductance of igbt, and an end of three inductance of the other end of inductance and electric capacity and pump pressure device joins, two capacitance series; The other end of three inductance of pump pressure device links with the contact of six igbts respectively, is connected to an end of resistance and switch in parallel, another termination capacitor of resistance and switch in parallel; The igbt of inverter and pump pressure device electric capacity join, and eight igbts of inverter join with four inductance of back in the end filter respectively.
Effect of the present utility model is, by different control modes, the utility model can reversely be powered, and three-phase alternating current obtains required voltage again through the filtering of filter after igbt rectification, filtering.Boosting or step-down of pump pressure device forms required direct voltage, and can generate the three-phase four-wire system alternating current of different frequency, can be used for electric machine soft starting or converting operation.This patent is realized the electric power transmitted in both directions, both can frequency conversion, can boost again or step-down, and can also realize that three-phase three-wire system and three-phase four-wire system change mutually.
Description of drawings
Fig. 1 is the preceding half section schematic diagram of the utility model;
Fig. 2 for the join schematic diagram of second half section of Fig. 1.
Embodiment
Front end filter 1 connects inverter 4 through controlled chopper 2, pump pressure device 3, and inverter 4 joins with back end filter 5; The end of front end filter 1 connects with the end of the igbt T7 of controlled chopper 2, another terminating diode D1 and the inductance L of igbt T7, three inductance L 12 of the other end of inductance L and capacitor C 1 and pump pressure device 3, the end of L13, L14 join, two capacitance series of C1 and C2; Three inductance L 12 of pump pressure device 3, the other end of L13, L14 link with the contact of six igbt T11, T12, T13, T14, T15 and T16 respectively, igbt T15 is connected to resistance R 1 end in parallel with switch T8, another termination capacitor C 3, C4 that resistance R 1 is in parallel with switch T8; The igbt T21 of inverter 4 and T22 and pump pressure device 3 capacitor C 3, C4 join, and eight T21, T22, T23, T24, T25, T26, T27 and T28 of inverter 4 join with four inductance L 1, L2, L3 and L4 of filter 5 respectively.
T1～T6 the rectification of three-phase alternating current in front end filter 1, through CH1～CH3 filtering, T7, D1, L and C1, C2 in controlled chopper 2 obtain required voltage after the filtering once more; Boosting of pump pressure device 3 booster circuits that constitute through L12～L14, T11～T16, R1, T8, C3, C4 forms required direct voltage.T21 in the inverter 4～T28 constitutes the inversion link, adopt the PWM technology, control T21～T28, the three-phase four-wire system alternating current of generation different frequency, again through after inductance L 1～L4, C5～C10, the filtering of R2～R4 in the end filter 5, output three-phase four-wire system sinusoidal ac.When controller detects C3 voltage when low, disconnect T8, C3, C4 be by R1 current-limiting charge (being usually used in first start), when controller detection C3 voltage is higher, closed T8, C3, the C4 not current limliting (being usually used in running) of charging
The buck functionality of pump pressure device is made of circuit L12～L14, T11～T16, C1, C2, and this moment, T7 did not apply control signal, was operated in the diode state, constituted current conductive path, and L plays the secondary buck effect, and CH1～CH3 plays the auxiliary energy storage effect.Take turns conducting by regulating T11, T13, T15, make frequency and duty ratio low more, then the voltage on the C1 is low more, thereby realizes the DC decompression function.
Claims (1)
1. static electric power bidirectional reversible buck converter plant, form by rectifier, filter, drive circuit, protective circuit and controller, it is characterized in that, front end filter (1) connects inverter (4) through controlled chopper (2), pump pressure device (3), and inverter (4) joins with back end filter (5); The end of front end filter (1) connects with an end of the igbt (T7) of controlled chopper (2), another terminating diode (D1) of igbt (T7) and inductance (L), the end of three inductance (L12) of the other end of inductance (L) and electric capacity (C1) and pump pressure device (3), (L13), (L14) joins, (C1) and (C2) two capacitance series; The other end of three inductance (L12) of pump pressure device (3), (L13), (L14) links with the contact of six igbts (T11), (T12), (T13), (T14), (T15), (T16) respectively, the collector electrode of igbt (T15) is connected to resistance (R1) end in parallel with switch (T8), another termination capacitor (C3), (C4) that resistance (R1) is in parallel with switch (T8); The igbt (T21) of inverter (4) and (T22) and pump pressure device (3) electric capacity (C3), (C4) join, eight igbts (T21) of inverter (4), (T22), (T23), (T24), (T25), (T26), (T27) and (T28) respectively with filter (5) in four inductance (L1), (L2), (L3) and (L4) join.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201659290U CN201008129Y (en) | 2006-12-05 | 2006-12-05 | Static electric power bidirectional reversible up-down voltage frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201659290U CN201008129Y (en) | 2006-12-05 | 2006-12-05 | Static electric power bidirectional reversible up-down voltage frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201008129Y true CN201008129Y (en) | 2008-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNU2006201659290U Expired - Lifetime CN201008129Y (en) | 2006-12-05 | 2006-12-05 | Static electric power bidirectional reversible up-down voltage frequency converter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064711A (en) * | 2010-11-29 | 2011-05-18 | 保定天威集团有限公司 | High-power grade full-power wind power grid connected converter for synchronizing generator |
| CN102780409A (en) * | 2012-07-20 | 2012-11-14 | 上海交通大学 | Unity-power-factor buck-boost circuit |
| CN102790568A (en) * | 2012-08-01 | 2012-11-21 | 北京海斯德电机技术有限公司 | Soft start control system for high-speed brushless DC motor |
| CN102882468A (en) * | 2012-09-26 | 2013-01-16 | 达航工业股份有限公司 | Motor frequency conversion equipment, driving device and control circuit |
| CN105141168A (en) * | 2014-05-28 | 2015-12-09 | 株洲变流技术国家工程研究中心有限公司 | Multifunctional converter device with wide adaptation range |
| EP3078110A1 (en) * | 2013-12-05 | 2016-10-12 | Renault S.A.S. | Improved device for reversible charging for an electric vehicle |
| CN109256941A (en) * | 2018-10-12 | 2019-01-22 | 四川长虹电器股份有限公司 | A kind of software control system and method for inverter soft start |
-
2006
- 2006-12-05 CN CNU2006201659290U patent/CN201008129Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064711A (en) * | 2010-11-29 | 2011-05-18 | 保定天威集团有限公司 | High-power grade full-power wind power grid connected converter for synchronizing generator |
| CN102780409A (en) * | 2012-07-20 | 2012-11-14 | 上海交通大学 | Unity-power-factor buck-boost circuit |
| CN102780409B (en) * | 2012-07-20 | 2014-10-15 | 上海交通大学 | Unity-power-factor buck-boost circuit |
| CN102790568A (en) * | 2012-08-01 | 2012-11-21 | 北京海斯德电机技术有限公司 | Soft start control system for high-speed brushless DC motor |
| CN102790568B (en) * | 2012-08-01 | 2014-10-15 | 北京海斯德电机技术有限公司 | Soft start control system for high-speed brushless DC motor |
| CN102882468A (en) * | 2012-09-26 | 2013-01-16 | 达航工业股份有限公司 | Motor frequency conversion equipment, driving device and control circuit |
| EP3078110A1 (en) * | 2013-12-05 | 2016-10-12 | Renault S.A.S. | Improved device for reversible charging for an electric vehicle |
| CN105141168A (en) * | 2014-05-28 | 2015-12-09 | 株洲变流技术国家工程研究中心有限公司 | Multifunctional converter device with wide adaptation range |
| CN105141168B (en) * | 2014-05-28 | 2017-11-14 | 株洲变流技术国家工程研究中心有限公司 | A kind of multi-functional converter device of wide accommodation |
| CN109256941A (en) * | 2018-10-12 | 2019-01-22 | 四川长虹电器股份有限公司 | A kind of software control system and method for inverter soft start |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HARBIN NEW ENERGY TECHNOLOGY CO., LTD. Assignor: Harbin Dongan Engine (Group) Co., Ltd. Contract fulfillment period: 2008.8.15 to 2018.8.6 Contract record no.: 2009230000040 Denomination of utility model: Static electric power bidirectional reversible up-down voltage frequency converter Granted publication date: 20080116 License type: Exclusive license Record date: 20091027 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.15 TO 2018.8.6; CHANGE OF CONTRACT Name of requester: HARBIN NEW ENERGY SCIENCE AND TECHNOLOGY CO., LTD. Effective date: 20091027 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080116 |
|
| EXPY | Termination of patent right or utility model |