CN105490272B - A kind of H bridge cascade multi-level active power filter device - Google Patents
A kind of H bridge cascade multi-level active power filter device Download PDFInfo
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- CN105490272B CN105490272B CN201510270423.XA CN201510270423A CN105490272B CN 105490272 B CN105490272 B CN 105490272B CN 201510270423 A CN201510270423 A CN 201510270423A CN 105490272 B CN105490272 B CN 105490272B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/20—Active power filtering [APF]
Abstract
The invention belongs to high-voltage high-power converter field more particularly to a kind of H bridge cascade multi-level active power filter device, including major loop, filter branch is soft to open circuit and tandem type unit inverter module；Wherein, the cascade H-bridge unit inverter module is mainly made of IGBT module, drive module, unit control panel, Absorption Capacitance, electrolytic capacitor and equalizing resistance；The drive module is directly welded in IGBT module；Unit control panel is connect with drive module by winding displacement, provides pwm pulse signal to IGBT；Unit control panel is connect by optical fiber with host computer, and the H bridge driving pulse instruction of host computer sending is received；The Absorption Capacitance is connected in each IGBT module DC side in parallel；The electrolytic capacitor is connected in the DC side of IGBT module in parallel；The equalizing resistance is connected in parallel with electrolytic capacitor.The structure of each H-bridge unit inverter module of the present invention is identical, easily carries out modularized design and encapsulation.
Description
Technical field
The invention belongs to high-voltage high-power converter fields more particularly to a kind of H bridge cascade multi-level active electric power to filter
Wave device device.
Background technique
Active filter compared with passive filtering have huge technical advantage, it is many country especially Japan, the U.S.,
The countries such as Germany are widely used.With the raising of manufacture of power electronic devices technique and new control strategy and topology
The it is proposed of structure, active filter technology will be popularized more.High voltage large capcity is the development of Active Power Filter-APF from now on
Trend.High pressure resistant in order to solve inverter switching device pipe in high pressure, high-power place, the low contradiction of switching frequency, traditional method is
Add transformer before active power filter device, the high pressure of system is become to the voltage class of common 380V.Such transformation
Device passes through special designing, and at high price, bulky, transformer loss is higher.It is how electric that the present invention devises a kind of H bridge tandem type
Flat active power filter device, needs not move through the transformer of special designing, and the direct linked network of device is solved in high-voltage field
Equipment loss brought by applied transformer is high, device delay time is long, cabinet body volume is big, the higher defect of equipment cost；
Simultaneously while guaranteeing switching frequency, the stress levels of switching tube are reduced.
Summary of the invention
The present invention be directed to active power filter devices to be applied to high pressure, large-power occasions, using opening up for H bridge tandem type
Flutter structure, such topological structure can direct linked network, do not need to configure dedicated transformer, have that structure is simple, is easy to module
The advantages of change, is applied to high pressure, large-power occasions to solve active power filter in the prior art, needs to configure dedicated transformation
Device, the defect that equipment cost is high and installation space is big.
The technical scheme is that：
The present invention provides a kind of H bridge cascade multi-level active power filter device,
A kind of H bridge cascade multi-level active power filter device, major loop include major loop disconnecting switch (QS), main
Contactor (KM1), first fuse (FUa), second fuse (FUb), third fuse (FUc), the first arrester (FV-A),
Second arrester (FV-B), third arrester (FV-C), the first network reactor (L1), the second network reactor (L2), third
Network reactor (L3), the first bridge reactor (L4), the second bridge reactor (L5), third bridge reactor (L6), first
Voltage Hall (HVT1), second voltage Hall (HVT2), tertiary voltage Hall (HVT3), the first current Hall (HAT1), second
Current Hall (HAT2), third current Hall (HAT3), filter branch are soft to open circuit and tandem type unit inverter module；
The first fuse (FUa), second fuse (FUb), third fuse (FUc) are connected on main contactor respectively
(KM1) after, make the overcurrent protection of whole device；First arrester (FV-A), the second arrester (FV-B), third are lightning-arrest
Device (FV-C) is in parallel with first fuse (FUa), second fuse (FUb), third fuse (FUc) respectively, makees whole device
Lightning protection；First network reactor (L1), the second network reactor (L2), third network reactor (L3), respectively
It is connected on after first fuse (FUa), second fuse (FUb), third fuse (FUc)；3 the first bridge of bridge side reactance sides
Reactor (L4), the second bridge reactor (L5), third bridge reactor (L6) again respectively with the first network reactor (L1),
Two network reactors (L2), third network reactor (L3) series connection；The first voltage Hall (HVT1), second voltage Hall
(HVT2), tertiary voltage Hall (HVT3) is connected in parallel on isolating transformer primary side side respectively, is used as system voltage and samples；Described first
Current Hall (HAT1), the second current Hall (HAT2), third current Hall (HAT3) are connected in series in the first bridge side electricity respectively
After anti-device (L4), the second bridge reactor (L5), third bridge reactor (L6), it is used as bridge side current sample；Its feature exists
In：
The major loop disconnecting switch (QS) is directly connected with net side high-pressure system, is used as major loop isolation high pressure；
The soft circuit of opening is connected in parallel on the two sides main contactor (KM1), including 2 the first isolating transformers of isolating transformer
(T1), the second isolating transformer (T2), 3 soft to open that resistance first is soft to be opened resistance (R1), second soft open that resistance (R2), third is soft opens
Resistance (R3) and 1 soft open contactor (KM2)；Wherein, main contactor (KM1) is connected in series after disconnecting switch QS；First
Isolating transformer (T1), the second isolating transformer (T2) primary side be connected in the two sides main contactor (KM1) in parallel, described first is soft
Open fuse (FU1), the second soft soft fuse (FU3) that opens of fuse (FU2), third that opens is connected on the first isolating transformer respectively
(T1) secondary side, first it is soft open resistance (R1), the second soft soft resistance (R3) that opens of resistance (R2), third that opens soft is opened with first respectively again
Fuse (FU1), the second soft soft open fuse (FU3) of fuse (FU2), third that open connect, then open contactor (KM2) string with soft
Connection, the soft secondary side opened contactor (KM2) and be then connected to the second isolating transformer (T2)；
The filter branch is connected in parallel between net side reactance and the reactance of bridge side；
The filtering contactor (KM3) is connected in series in filter branch side, is used as on-off filter branch；
The tandem type unit inverter module is made of 6 H-bridge unit inverter modules, carries out 2 H-bridge unit inverter modules
It connects, the form of alternate star-like connection connects in major loop side.
Further, the tandem type unit inverter module is mainly by IGBT module, drive module, unit control panel, suction
Receive capacitor, electrolytic capacitor and equalizing resistance composition；
The drive module is directly welded in IGBT module；Unit control panel is connect with drive module by winding displacement, is given
IGBT provides pwm pulse signal；Unit control panel is connect by optical fiber with host computer, and the H bridge driving arteries and veins of host computer sending is received
Punching instruction；
The Absorption Capacitance is connected in each IGBT module DC side in parallel；The electrolytic capacitor is connected in IGBT mould in parallel
The DC side of block；The equalizing resistance is connected in parallel with electrolytic capacitor.
The beneficial effects of the invention are as follows：H bridge cascade multi-level Active Power Filter-APF of the present invention has below beneficial to effect
Fruit：
(1) present invention could apply to 660V~1260V high-pressure system, the transformer for not needing special designing is dropped
Pressure, the direct linked network of device.Device responds fast (reactive compensation response time≤7ms, harmonic compensation response time≤16ms), volume
It is small, at low cost.
(2) topological structure of H bridge cascade multi-level is used, the structure of each H-bridge unit inverter module is identical, easily carries out
Modularized design and encapsulation；Unit switch device born it is resistance to force down, switching device used is few.
(3) each H-bridge unit inverter module of the present apparatus has independent DC power supply, between each other without direct
DC side voltage-sharing is not present in electrical communication.
Detailed description of the invention
Fig. 1 is the topological diagram of H-bridge unit inverter module of the present invention.
Fig. 2 is H bridge cascade multi-level active filter major loop figure of the present invention.
Wherein, 1-IGBT module, 2- drive module, 3- unit control panel, 4- Absorption Capacitance, 5- electrolytic capacitor, 6- are pressed
Resistance；7- filter branch, 8-H bridge unit inverter module, 9- tandem type unit inverter module, 10- is soft opens circuit.
Specific embodiment
The principle of the present invention feature is further illustrated with reference to the accompanying drawing.
H bridge tandem type electric power Active Power Filter-APF of the present invention is applied to offshore drilling platforms, system electricity
Pressure is 1140V~1260V, and the present apparatus exports electric current >=60A.
The disconnecting switch that active power filter device major loop of the present invention uses is exclusively used in offshore platform.Keep apart
Close the control system that constituent apparatus major loop is used cooperatively with vacuum contactor.Wherein disconnecting switch has dedicated switch hand
Handle, the disconnecting switch effectively can carry out electrical isolation, to guarantee in overhaul of the equipments, staff and equipment with electric system
Safety.
1 vacuum contactor KM1,2 isolating transformer T1, T2,3 soft to open fuse FU1, FU2, FU3, and 1 soft to open
Contactor KM2 and 3 it is soft open resistance R1, R2, R3 and constitute the soft of device open circuit.
The no-load voltage ratio of 2 isolating transformers T1, T2, capacity are completely the same, and fuse, contactor, the soft resistance that opens are connected in series
In the secondary side of 2 isolating transformers.It is closed disconnecting switch, the soft contactor that opens is closed, soft to open by circuit isolating transformer T1
Fuse FU1~3, it is soft to open contactor KM2, it is soft to open resistance R1~3, isolating transformer T2, to cascade H-bridge unit inversion mould
The DC side of block is pre-charged.Master controller judges DC voltage value, and charging finishes, and is closed main contactor KM1, disconnects soft
Contactor KM2 is opened, the soft start of device is realized.Meanwhile isolating transformer T1 secondary side by miniature circuit breaker QF1 and
One filter LV provides control power supply, opened point and guarantor of the secondary side of isolating transformer T2 by contactor KM2 for device
The heat dissipation centrifugal blower of dangerous connection device.
Such soft circuit of opening is using isolating transformer, and primary side is electrically completely isolated with secondary side, on high-tension side electricity
Source has carried out good filtering, and high frequency spurs is inhibited to be passed to control loop.It is soft that open device used in circuit be low pressure 380V device,
It is at low cost, device is small, save cabinet body space.
Circuit breaker Q F1 was provided as higher level's protection of control power supply, control switch for the control power-supply system of device
It carries, short-circuit protection.It is packed into filter in device control power-supply system enter line side simultaneously, the harmonic wave in filtering appts, to device
Control power-supply system provides pure direct current.
Fuse used by the present apparatus is the fastp-acting fuse of high sensitivity, fastp-acting fuse fast, efficiency with speed
High advantage.The fastp-acting fuse can provide better overload protection and more reliable short-circuit protection for the present apparatus.
For filtering out net side reactance L1, L2, L3 of Electric Network Higher Harmonic and filtering out the high frequency generated in PWM converter operation
The reactance of bridge side L4, L5, L6 of ripple current are all made of soft magnetism reactor.Soft magnetism reactor, which is compared to traditional reactor, to be had
The advantage that small, temperature rise is low, noise is small, small in size is lost.
The present apparatus is in parallel in the reactance of major loop net side and the reactance of bridge side to be added LCL filter branch, by the normal of contactor KM3
Open the on-off of contact control filter branch.LCL filter branch is used to filter out the higher hamonic wave of switching tube in inversion unit, prevents out
The higher hamonic wave for closing pipe injects power grid.LCL filter branch, net side reactance and the reactance of bridge side have collectively constituted the filtering system of device
The cascade H-bridge unit inverter module of the present apparatus is mainly by IGBT module, Absorption Capacitance, electrolytic capacitor, equal piezoelectricity
Resistance composition, as shown in Figure 1.Module uses powerful IGBT, and the drive module of IGBT is directly welded in IGBT module.H bridge
Unit control panel inside unit inverter module is connect with drive module by winding displacement, provides pwm pulse signal to IGBT.Unit
Control panel is connect by optical fiber with host computer, and the H bridge driving pulse instruction of host computer sending is received.
Absorption Capacitance inside unit inverter module eliminates the point due to caused by the stray inductance of busbar for protecting IGBT
Peak voltage.Electrolytic capacitor plays the role of DC support.Equalizing resistance is solved since capacitor connects bring since capacitor holds
Amount and insulation resistance difference and caused by voltage unevenness problem.
The power cabinet of the present apparatus carries out the two H-bridge unit inverter module series connection of every phase, the structure that alternate star connects.Each H bridge
Unit inverter module all has independent DC power supply, and between each other without direct electrical communication, voltage-sharing is not present.By
PWM modulation can export three+Ud, 0 ,-Ud level.The 2 H bridge series connection of every phase, every phase can export 2N+1=5 electricity in the present apparatus
It is flat.
Have using such cascade structure and small, at low cost, transformerless ferromagnetic nonlinear problem and occupied area is lost
It is small.Main circuit structure is simple, does not need clamps, and controller design is simple, required when voltage of the output phase with level number
The switching device minimum number wanted.
Claims (2)
1. a kind of H bridge cascade multi-level active power filter device, major loop includes major loop disconnecting switch (QS), and master connects
Tentaculum (KM1), first fuse (FUa), second fuse (FUb), third fuse (FUc), the first arrester (FV-A),
Two arresters (FV-B), third arrester (FV-C), the first network reactor (L1), the second network reactor (L2), third net
Reactor (L3), the first bridge reactor (L4), the second bridge reactor (L5), third bridge reactor (L6), the first electricity
Press Hall (HVT1), second voltage Hall (HVT2), tertiary voltage Hall (HVT3), the first current Hall (HAT1), the second electricity
Hall (HAT2), third current Hall (HAT3) are flowed, filter branch is soft to open circuit and tandem type unit inverter module；
The first fuse (FUa), second fuse (FUb), third fuse (FUc) are connected on main contactor respectively
(KM1) after, make the overcurrent protection of whole device；First arrester (FV-A), the second arrester (FV-B), third are lightning-arrest
Device (FV-C) is in parallel with first fuse (FUa), second fuse (FUb), third fuse (FUc) respectively, makees whole device
Lightning protection；First network reactor (L1), the second network reactor (L2), third network reactor (L3), respectively
It is connected on after first fuse (FUa), second fuse (FUb), third fuse (FUc)；3 the first bridge of bridge side reactance sides
Reactor (L4), the second bridge reactor (L5), third bridge reactor (L6) again respectively with the first network reactor (L1),
Two network reactors (L2), third network reactor (L3) series connection；The first voltage Hall (HVT1), second voltage Hall
(HVT2), tertiary voltage Hall (HVT3) is connected in parallel on isolating transformer primary side side respectively, is used as system voltage and samples；Described first
Current Hall (HAT1), the second current Hall (HAT2), third current Hall (HAT3) are connected in series in the first bridge side electricity respectively
After anti-device (L4), the second bridge reactor (L5), third bridge reactor (L6), it is used as bridge side current sample；
It is characterized in that：
The major loop disconnecting switch (QS) is directly connected with net side high-pressure system, is used as major loop isolation high pressure；
The soft circuit of opening is connected in parallel on the two sides main contactor (KM1), including 2 the first isolating transformers of isolating transformer (T1),
Second isolating transformer (T2), 3 soft to open that resistance first is soft to be opened resistance (R1), second soft open that resistance (R2), third is soft opens resistance
(R3) and 1 soft is opened contactor (KM2)；Wherein, main contactor (KM1) is connected in series after disconnecting switch QS；First isolation
Transformer (T1), the second isolating transformer (T2) primary side be connected in the two sides main contactor (KM1) in parallel, described first it is soft open it is molten
Disconnected device (FU1), the second soft soft fuse (FU3) that opens of fuse (FU2), third that opens are connected on the first isolating transformer (T1) respectively
Secondary side, first it is soft open resistance (R1), the second soft soft resistance (R3) that opens of resistance (R2), third that opens soft opens fusing with first respectively again
Device (FU1), the second soft soft open fuse (FU3) of fuse (FU2), third that open connect, then connect with the soft contactor (KM2) that opens,
The soft secondary side opened contactor (KM2) and be then connected to the second isolating transformer (T2)；
The filter branch is connected in parallel between net side reactance and the reactance of bridge side；
Filtering contactor (KM3) is connected in series in filter branch side, is used as on-off filter branch；
The tandem type unit inverter module is made of 6 H-bridge unit inverter modules, carries out 2 H-bridge unit inverter module strings
Join, the form of alternate star-like connection connects in major loop side.
2. a kind of H bridge cascade multi-level active power filter device according to claim 1, it is characterised in that：
The tandem type unit inverter module is mainly by IGBT module, drive module, unit control panel, Absorption Capacitance, electrolysis electricity
Hold and equalizing resistance forms；
The drive module is directly welded in IGBT module；Unit control panel is connect with drive module by winding displacement, and IGBT is given
Pwm pulse signal is provided；Unit control panel is connect by optical fiber with host computer, and the H bridge driving pulse for receiving host computer sending refers to
It enables；
The Absorption Capacitance is connected in each IGBT module DC side in parallel；The electrolytic capacitor is connected in IGBT module in parallel
DC side；The equalizing resistance is connected in parallel with electrolytic capacitor.
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| CN201510270423.XA CN105490272B (en) | 2015-05-25 | 2015-05-25 | A kind of H bridge cascade multi-level active power filter device |
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| CN105490272B true CN105490272B (en) | 2018-11-23 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202210760U (en) * | 2011-09-09 | 2012-05-02 | 北京索英电气技术有限公司 | Soft starting circuit of current transformer |
| CN204118749U (en) * | 2014-08-30 | 2015-01-21 | 唐山开诚电控设备集团有限公司 | The static chain type reactive generating device of mine flameproof and intrinsic safety type |
| CN204794084U (en) * | 2015-05-25 | 2015-11-18 | 廊坊英博电气有限公司 | Many level of H bridge tandem type active power filter device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202210760U (en) * | 2011-09-09 | 2012-05-02 | 北京索英电气技术有限公司 | Soft starting circuit of current transformer |
| CN204118749U (en) * | 2014-08-30 | 2015-01-21 | 唐山开诚电控设备集团有限公司 | The static chain type reactive generating device of mine flameproof and intrinsic safety type |
| CN204794084U (en) * | 2015-05-25 | 2015-11-18 | 廊坊英博电气有限公司 | Many level of H bridge tandem type active power filter device |
Non-Patent Citations (1)
| Title |
|---|
| H 桥级联型并联有源电力滤波器的研究;刘鸷;《中国优秀硕士学位论文全文数据库》;20140315;全文 * |
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Effective date of registration: 20201013 Address after: 065001 No. 68 Lotus Road, Langfang Development Zone, Hebei, China Patentee after: LANGFANG IN-POWER ELECTRIC Co.,Ltd. Patentee after: BEIJING IN-POWER ELECTRIC Co.,Ltd. Address before: 065001 No. 68 Lotus Road, Langfang Development Zone, Hebei, China Patentee before: LANGFANG IN-POWER ELECTRIC Co.,Ltd. Patentee before: BEIJING IN-POWER ELECTRIC Co.,Ltd. Patentee before: BEIJING IN-POWER NEW ENERGY Co.,Ltd. |