CN107395033A - Novel rectifying circuit and idle method for transformation - Google Patents
Novel rectifying circuit and idle method for transformation Download PDFInfo
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- CN107395033A CN107395033A CN201710808180.XA CN201710808180A CN107395033A CN 107395033 A CN107395033 A CN 107395033A CN 201710808180 A CN201710808180 A CN 201710808180A CN 107395033 A CN107395033 A CN 107395033A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000009466 transformation Effects 0.000 title claims description 12
- 230000001939 inductive effect Effects 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims description 77
- 230000000694 effects Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 4
- 241000272470 Circus Species 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000005868 electrolysis reaction Methods 0.000 abstract description 4
- 238000003723 Smelting Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 11
- 238000004458 analytical method Methods 0.000 description 7
- 230000001965 increasing effect Effects 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QBPPRVHXOZRESW-UHFFFAOYSA-N 1,4,7,10-tetraazacyclododecane Chemical compound C1CNCCNCCNCCN1 QBPPRVHXOZRESW-UHFFFAOYSA-N 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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- 238000007373 indentation Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
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Abstract
The present invention is a kind of rectification circuit.The quadergy stored in the resistive load or capacity load of inductive load or direct current reactor of having connected can be converted into a kind of method that can be supported active energy used by novel rectifying circuit.Be mainly used in inductive, capacity load DC power system and add in the DC power system of resistive load of direct current reactor, including big-and-middle-sized electrochemical electrolysis system, direct current smelting system, DC transmission system etc..The present invention can also apply in 12 pulsating wave system above, and application principle is identical.
Description
Technical field
The present invention is a kind of rectification circuit.Novel rectifying circuit can be by inductive load or the resistance for direct current reactor of having connected
Property load or capacity load in the quadergy stored be converted into a kind of method that can be supported active energy used.It is main
Will be applied to inductive, capacity load DC power system and add direct current reactor resistive load direct current
In the system of source, including big-and-middle-sized electrochemical electrolysis system, direct current smelting system, DC transmission system etc..This patent is ten
Two pulse wave system above can also be applied, and application principle is identical.
Background technology
Rectification circuit is a kind of power electronics electricity that alternating current can be become direct current, be made up of power electronic devices
Road.It is widely used in the every field such as industrial and agricultural production, social life, scientific experimentation.It is divided into bridge-type by structure（Including six phase stars
Shape bridge-type midpoint is not brought up, equilateral hexagon bridge-type）, double reverse-stars type, the extraction of single-phase full wave midpoint, three-phase semiwave, three-phase it is tortuous
Shape, six phase star midpoints are drawn, six phase fork-shapeds（Double indentations）Etc. a variety of rectification circuit forms（See that rectifier transformer designs hand
Volume）.It is divided into full-control type, half control type and non-phase control-type rectification circuit by using the Control Cooling difference of electronic device.Can also be by
The number of phases and output waveform classification etc..
Six pulse wave rectifier circuit systems being made up of two series connection commutation groups are compositions ten six pulse wave bridge rectifiers
The elementary cell of two pulse wave above bridge rectifiers.
The double reverse-stars type rectification of three facies tract paralleing reactors is broadly divided into using more three-phase double reverse-star rectification circuit
Circuit（Abbreviation double reverse-stars type）Cancel the double reverse-stars type rectification circuit of paralleing reactor using three-phase five-limb with transformer core
（Abbreviation pentastyle double reverse-stars type）.Electric circuit characteristic is composed in parallel by two three-plase half wave rectifier circuits, critical phased angle αL=
60°。
Bridge rectifier mainly has star or angular bridge rectifier using more.Three-phase half-controlled bridge-type rectified current
Lu Youyi important features, in order to ensure the reliable change of current of rectifier cell, star or angular half-controlled bridge are needed at inductive load both ends simultaneously
Join fly-wheel diode, and fully controlled bridge, non-phased bridge need not so be done.When half control rectifier bridge accesses inductive load, due to inductance
Electric current can not be mutated, within the controllable silicon shut-off phase, it is necessary to access fly-wheel diode at load both ends to keep the logical of inductive current
Road, dangerous overvoltage is produced at inductive load both ends during preventing that controllable silicon from turning off and controllable silicon being capable of commutation conducting.It is critical
Phased angle αL=60°。
Occasionally there is application in the three-phase half-controlled bridge-type rectification circuit past in generator excited system.But this half control with freewheeling arm
Circuit has two big shortcomings using upper with all controlled rectifier circuit ratio, first, cost height（One freewheeling arm of increase more, present IGCT valency
Lattice are 1.3 times of diode, can also be dropped later）, two be that security is poor（Uncontrollable short circuit current）, so using less.
Rectification circuit is in real work, and due to the presence of transformer reactance, two rectifier arms change in a commutation group
Mutually can not possibly instantaneously it complete, but the previous rectifier arm of rectification circuit slowly subtracts stream, the slowly flow increasing of the latter rectifier arm, occurs
The phenomenon that two rectifier arms work simultaneously, this phenomenon are also commutation phenomenon overlapping phenomenon.Such as phased angle α=0,
At the intersection point P of rectification circuit phase voltage curve, the phase voltage e of conductive rectifier arm 1a, and will be conductive rectifier arm 2
Phase voltage ebEqual, then rectifier arm 2 starts conduction, and load current starts to be shifted from rectifier arm 1 to rectifier arm 2, produces commutation.
Due to the presence of commutating reactance, commutation can not possibly be completed instantaneously, after load current is transferred to rectifier arm 2 by rectifier arm 1 completely,
Commutation terminates, the time electrical angle that rectifying and changing phase is undergone（Work period angle）Referred to as angle of overlap or angle overlap.It is whole during commutation
Voltage die phenomenon occurs in current circuit（Voltage reduces suddenly）.
In rectification circuit, IGCT utilizes the size for the phase adjusted DC voltage for controlling gate pole trigger pulse, rectification
Device exports DC voltage and the functional relation at phased angle is referred to as phase controlling characteristic.Under phase controlling, the rectifier that is uniformly coupled
The DC voltage U of outputd=Ud0COS α, wherein Ud0It is the preferable unloaded VD of non-phase controlled rectifier（V）.
Phase control rectifier circuit output DC voltage is with phased angle（Trigger delay angle）α increase and reduce, when phased angle is big
In critical phased angle αLWhen, rectifier arm starts the negative half period conduction in alternating voltage, the critical phased angle α of rectification circuitL=π/2-π/
P, wherein p are pulse number.
Typically in actual applications, the phased angle of rectification circuit is forbidden to enter critical phased angle（System enters inversion shape
State）.Specific method is：In the range of regulation required for system, coarse adjustment is provided by on-load voltage regulation rectifier transformer, by rectified current
The IGCT fine tuning on road, control Thyristor Controlled depth.
The content of the invention
Novel rectifying circuit, it is characterized in that：Including rectification circuit, idle conversion arm, load；
Wherein, rectification circuit connects with load；
Wherein, the both ends parallel reactive conversion arm of load；
Wherein, idle conversion arm is made up of controlled valve device or uncontrollable valve device；
Wherein, novel rectifying circuit uses the idle method for transformation of novel rectifying circuit.
Novel rectifying circuit, it is characterized in that：Including three-phase double reverse-star band paralleing reactor rectification circuit, two idle turn
Change arm, load or including direct current reactor；
Wherein, load and direct current reactor are composed in series series circuit；
Wherein, three-phase double reverse-star band paralleing reactor rectification circuit or with load connect, or with it is described load and direct current reactance
The series circuit connection that device is composed in series；
Wherein, each idle conversion arm in parallel of two commutation groups of three-phase double reverse-star rectification circuit；
Wherein, idle conversion arm is made up of controlled valve device or uncontrollable valve device.Fig. 1, Fig. 2 are two of which forms, are also had
Other forms.
Novel rectifying circuit, it is characterized in that：Including three-phase five-limb double reverse-stars type without paralleing reactor rectification circuit, one
Individual or two idle conversion arms, load or including direct current reactor；
Wherein, load and direct current reactor are composed in series series circuit；
Wherein, three-phase five-limb double reverse-stars type without paralleing reactor rectification circuit or with load connect, or with it is described load and
The series circuit connection that direct current reactor is composed in series；
Wherein, three-phase five-limb double reverse-stars type is each one idle turn in parallel without two commutation groups of paralleing reactor rectification circuit
Two commutation groups for changing arm or three-phase five-limb double reverse-stars type without paralleing reactor rectification circuit are common in parallel one idle turn
Change arm；
Wherein, idle conversion arm is by controlled valve device or uncontrollable valve device.Fig. 3, Fig. 4 are two of which forms, also have other
Form.
Novel rectifying circuit, it is characterized in that：Including full control or half control or non-phased three-phase bridge rectifier circuit, idle conversion
Arm, load or including direct current reactor；
Wherein, load and direct current reactor are composed in series series circuit；
Wherein, control or half control or non-phased three-phase bridge rectifier circuit or connected entirely with load, or with the load and direct current
The series circuit connection that anti-device is composed in series；
Wherein, the both ends parallel reactive conversion arm of the both ends of load or the load and direct current reactor series circuit；
Wherein, idle conversion arm is made up of controlled valve device or uncontrollable valve device.Fig. 5, Fig. 6, Fig. 7 are wherein three kinds of forms,
Also other forms.
Novel rectifying circuit, it is characterized in that：Including six phase star neutral points draw rectification circuit, idle conversion arm, load,
Or including direct current reactor；
Wherein, load and direct current reactor are composed in series series circuit；
Wherein, six phase neutral points are drawn rectification circuit or connected with load, or are composed in series with the load and direct current reactor
Series circuit connection；
Wherein, the both ends parallel reactive conversion arm of the both ends of load or the load and direct current reactor series circuit；
Wherein, idle conversion arm is made up of controlled valve device or uncontrollable valve device.Fig. 8 is one form of which, also has other
Form.
Novel rectifying circuit, it is characterized in that：Including full control or half control or non-phased single phase bridge type rectifier circu, idle conversion
Arm, load or including direct current reactor；
Wherein, load and direct current reactor are composed in series series circuit；
Wherein, control or half control or non-phased single phase bridge type rectifier circu or connected entirely with load, or with the load and direct current
The series circuit connection that anti-device is composed in series；
Wherein, the both ends parallel reactive conversion arm of the both ends of load or the load and direct current reactor series circuit；
Wherein, idle conversion arm is made up of controlled valve device or uncontrollable valve device.
Novel rectifying circuit, it is characterized in that：Including single-phase full wave midpoint draw circuit, it is idle conversion arm, load or including
Direct current reactor；
Wherein, load and direct current reactor are composed in series series circuit；
Wherein, single-phase full wave midpoint is drawn circuit or connected with load, or be composed in series with the load and direct current reactor
Series circuit connects；
Wherein, the both ends parallel reactive conversion arm of the both ends of load or the load and direct current reactor series circuit；
Wherein, idle conversion arm is made up of controlled valve device or uncontrollable valve device.
Novel rectifying circuit is idle method for transformation, it is characterized in that：In full control or one commutation group of half control novel rectifying circuit
Two conductive rectifier arm is at the commutation point of phase voltage intersections of complex curve successively, the phase voltage of conductive rectifier arm 1, and will
The phase voltage of rectifier arm 2 that will be conductive is equal, and rectifier arm 2 that will be conductive controls phased angle α to be more than critical phased angle αL, allow whole
Stream device enters moment inversion working condition, the electrical angle ξ of inversion work period angle operating timen=α-αL；Turned off in rectifier arm 2
Electrical angle ξnPeriod, rectification circuit are unable to catastrophe characteristicses using inductive load or capacity load electric current, voltage, pass through idle turn
Change arm to the short circuit effect of load the quadergy stored in load, the self-loopa between idle conversion arm and load, turning into has
Function amount.
Novel rectifying circuit is idle method for transformation, it is characterized in that：Novel rectifying circuit rectification circuit voltage during commutation
Bust, rectification circuit are unable to catastrophe characteristicses using inductive load or capacity load electric current, voltage, by idle conversion arm to negative
The quadergy stored in load the self-loopa between idle conversion arm and load, is turned into active energy by the short circuit effect of load；
This paper nouns are using the establishment of power electronics association of China Institute of Electrical Engineering Technology《Power electronic equipment designs and using hand
Volume》.
The series circuit that resistive load and direct current reactor are composed in series can also be considered as inductive load.
Phase control rectifier circuit is exactly control rectifying circuit.Phase control rectifier circuit is exactly controlled rectification circuit.
The controlled valve device for forming rectifier arm and idle conversion arm is its conducting direction, and its current path is that bistable is controllable
A kind of power electronic devices, as turn-off thyristor, insulated gate bipolar transistor IGBT, triode thyristor, by crystalline substance can be turned off
Bidirectional thyristor that brake tube is formed etc..The uncontrollable valve device for forming rectifier arm and idle conversion arm is in conducting direction, is not required to
Apply any control signal can conducting electric current a kind of reverse blocking power electronics valve device, such as common rectifying tube, various types of
Diode etc..
When it is idle conversion arm be made up of controlled valve device, be to direct current just connecing or reversal connection apparent capacity load or inductive
The property of load needs, and guarantee is in forward voltage state when off, ensures the course of discharge of capacity load.When idle turn
Change arm by uncontrollable valve device（Diode）It is reversal connection to DC voltage during composition, the negative pole of idle conversion arm can connect direct current
The positive pole of electricity.It is idle conversion arm in actual applications, can with series inductance, electric capacity or resistance with control rectification circuit electric discharge spy
Property.
When need control load discharge characteristic when, it is idle conversion arm be either made up of controlled valve device or series inductance,
Electric capacity, resistance element one of which or both or three, or i.e. be made up of controlled valve device but series inductance, electric capacity,
Resistance element one of which or both or three.
Inventor is had found in three-phase double reverse-star band paralleing reactor rectification circuit, once increasing idle turn at load both ends
Change arm, the critical phased angle α of rectification circuitL=π/6.As utilized this feature, idle turn in the increase of load both ends by IGCT control
Change arm, when needing to carry out phase control to load, turn off idle conversion arm, then circuit keeps its original control characteristic.When need
When wanting, using gate pole trigger pulse is controlled, recover idle conversion arm electric conductivity, allow the critical phased angle α of rectifier armL=π/6.When
During its limiting case, it is not necessary to which during rectifier arm phase control, idle conversion arm can be made up of uncontrollable valve device.Other rectifications
Circuit is similarly.Circuit, single-phase half-controlled bridge-type rectification circuit are drawn at single-phase full wave midpoint, single-phase full-controlled bridge rectification circuit, is had
One common feature, once increasing idle conversion arm at load both ends（Short-circuit arm）When its rectification circuit critical phased angle αL=0 °,
α ＞ αLWhen rectification circuit at inverter operation, huge change occurs for control characteristic after the increase of these three circuits is idle conversion arm.
General principle is：Each cycle, or when one cycle in interval will allow the rectifier arm to be operated in one section of inverter mode, profit
With time period, the quadergy stored in inductive load by idle conversion arm short circuit, converted idle between arm and load
Self-loopa, turn into active energy.I.e. manual control rectification circuit enters inverter mode, by idle conversion arm big inductive load
The quadergy of upper storage is discharged as used in load, and is discharged within the specified period.
The inductance value angle analysis in electrolytic cell is pressed, as it can be assumed that the DC current in electrolytic cell is certain value, example
Such as Id=25000A, it is certain value that can be approximately considered load inductance in the electrical angle of a rectifier arm working time, unit time
Energy be equal（The contingencies such as aluminium electrolysis anode effect make an exception）.The electrical angle of load undergone working time is decomposed
Into the electrical angle of a rectifier arm working time（Operating time）Such as 120 °（Under the normal commutation state of rectification circuit）, a rectification
For the electrical angle of arm working time loaded work piece cycle angle ξ, this work period can be decomposed into the rectification work period by we
Angle ξz, and inversion work period angle ξn, the inversion work period, angle was ξnAccount for rectifier arm work period angle ξ percentage
It is ξ %.Inversion work period angle is added up to also to be ξ as in the same way, loaded a cyclen, account for a cycle total work period
Angle ξ percentage is also ξ %.Again in the same way, ξ is also at whole rectification overall process load total inversion work period anglen,
The percentage for accounting for total work period angle ξ is also ξ %, here it is the percentage that load inversion is released energy, that is, bears
Carry the percentage of off-energy.
So that three-phase bridge rectifier circuit is used for chemical industry electrolysis as an example, illustrate inversion work period angle ξnThe principle of energy-conservation.Press
Moment inversion this phenomenon in the switching process of rectification circuit is set out analysis, and each rectifier arm operating time is 120 °.Do not having
In the case of having idle conversion arm, each rectifier arm is electric tank working duration（Electrical angle）For 120 °.When IGCT allows by force
Phased angle αL=70 ° are more than critical phased angle αL=60 °, allow rectification circuit to enter inversion working condition and keep 10 ° of electrical angle
（ξn, also cry loss of voltage angle）, quadergy in inductive load is now stored in the form of short circuit in load and idle
Circulated between conversion arm, electric current is constant in holding electrolytic cell, and quadergy is converted into active energy.It is artificial to form inversion work week
Phase angle ξn=10 °, then 10 ° of system/120 ° × 100%=8.33%, it is negative using perception that now system, which has 8.33% work electrical angle,
Quadergy in load is load supplying.Analyzed more than, novel rectifying circuit uses idle method for transformation, reached
Energy-saving effect is very significant.
Three-phase thyristor bridge rectification circuit and the inverter circuit docking of this patent, are exactly the one of existing DC transmission system
Individual basic inverter unit, idle conversion arm must be made up of controlled valve device.When DC transmission system rectified current trackside is phased
Or transient voltage bust during commutation, now super-pressure extra high voltage line is capacitive load, has moment to keep the constant ability of voltage,
Rectified current trackside becomes inverter circuit, moment inversion phenomena occurs, and inverter circuit side becomes rectification circuit, moment rectification occurs and shows
As（We can be this phenomenon convertor circuit moment inverse operation phenomenon）, to be transmitted electricity to Generation Side, energy loss is minor matter,
There is significant impact to generator.We convert arm in rectification circuit dress controllable powerless, allow inverter circuit side energy not to rectification
Side is transmitted, and eliminates the moment inverse operation phenomenon of convertor circuit, and phased angle is higher to the control efficiency of DC voltage.Direct current is defeated
Only need a set of idle conversion arm in electric system principle, but rectification circuit and inverter circuit be such as apart from remote, with a set of line loss
It is too big and unfavorable to tidal control.
When needing to recover common rectification circuit from commutation rectification circuit, idle conversion arm must be by controlled valve device structure
Into.
Three-phase half-controlled bridge-type band is idle to convert arm rectification circuit（Idle conversion arm half-controlled bridge）Continue with three-phase half-controlled bridge-type band
Flow arm rectification circuit（Freewheeling arm half-controlled bridge）Difference：
First, converting the idle conversion arm of arm half-controlled bridge can be made up of IGCT.In DC transmission system, it connects with inverter circuit
When connecing, idle conversion arm must be made up of IGCT.In addition, its control characteristic does not have the whole of change after idle conversion arm is increased
Current circuit, such as its α of freewheeling arm half-controlled bridgeL=60 °, it is necessary to turn off idle conversion arm to rectification circuit when being worked using a principal arm
Energy is put aside, conversion arm is opened when phase principal arm works successively and is forced into inversion working condition and releases energy, so repeatedly, this
Shi Bixu forms conversion arm with IGCT.
2nd, idle conversion arm half-controlled bridge can apply to convertor circuit, capacitive load.Freewheeling arm half control bridges capacitive load
Directly into discharge circuit.
3rd, technical problem to be solved is different.One is to reach energy-saving effect using idle method for transformation, one be
It can allow rectification circuit commutation during commutation.
4th, it is technical method difference.Novel rectifying circuit needs to use the idle method for transformation of novel rectifying circuit.
5th, it is with little or no by the idle conversion arm manual control inversion phase to be one, and one is uncontrollable.
6th, it is idle conversion arm semi-controlled bridge rectifier circuit IGCT reversed peak under the conditions of identical load and DC voltage
Voltage double left and right.
Novel bridge type convertor circuit beneficial effect is：Eliminate the moment inverse operation of convertor circuit, improve yield, system peace
Entirely, energy-conservation etc..
Brief description of the drawings
Fig. 1 is novel rectifying circuit electrical schematic diagram.
Fig. 2 is novel rectifying circuit electrical schematic diagram.
Fig. 3 is novel rectifying circuit electrical schematic diagram.
Fig. 4 is novel rectifying circuit electrical schematic diagram.
Fig. 5 is novel rectifying circuit electrical schematic diagram.
Fig. 6 is novel rectifying circuit electrical schematic diagram.
Fig. 7 is novel rectifying circuit electrical schematic diagram.
Fig. 8 is novel rectifying circuit electrical schematic diagram.
Fig. 9 is novel rectifying circuit electrical schematic diagram.
Figure 10 is novel rectifying circuit electrical schematic diagram.
Figure 11 is novel rectifying circuit electrical schematic diagram.
Wherein,
1 is the rectifier arm of rectification circuit.
2 be idle conversion arm.
3 be load.
4 be direct current reactor.
5 be valve side winding.
Embodiment
Because rectification circuit form is too many, specific embodiment this patent is not listed all, as long as utilizing rectification circuit
Novel rectifying circuit is idle method for transformation, and any rectification circuit released with reference to rectifier industry technology personnel common knowledge
Structure is all the protection domain of this patent, such as 12 pulsating wave above rectification circuit, cophase counter parallel connection rectifying circuit, with idle conversion
Other rectification circuit forms of arm etc..
Example 1, certain enterprise, 15000 tons of electrolytic zinc projects, DC current 25000A, DC voltage 245V -350V.Tank voltage
3.3V, every 50 pieces of groove minus plate.Thyristor Three-phase full-controlled bridge rectification circuit band is idle conversion arm, cophase counter parallel connection.
The novel rectifying transformers of ZHSSPZ -10000/35, transformer high-voltage voltage 35KV, transformer low voltage voltage 198V -290V, just
Demodulate 27 grades of pressure, range of regulation 70%Udn -105%Udn.
1st, problem, this example use the novel rectifying transformers of ZHSSPZ -10000/35 to simplify the analysis, this transformer
Feature is in range of regulation internal impedance voltage value near certain certain value, and impedance value diversity is small compared with traditional transformer.Directly
The electrolytic cell of stream output loop can consider reactance Xd=∞.
2nd, transformer impedance drop percentage：
The minimum tap of impedance voltage（Low voltage highest）Uk=6.41%.
The specified tap of impedance voltage（Low voltage middle gear）Uk=6.49%.
The maximum tap of impedance voltage（Low voltage is minimum）Uk=5.65%.
Problem to simplify the analysis, this example impedance voltage value average 6.18%.
3rd, the idle conversion arm of Thyristor Three-phase full-controlled bridge rectification circuit band, structural representation are shown in as Fig. 5, cophase counter parallel connection are whole
Current circuit design parameter：
Because of cophase counter parallel connection, so totally ten two principal arm IGBT：ZPA- 3300/12, per 4 common rectifying tube parallel connections of arm.Every general
Logical rectifying tube on-state average current 3300A, repetitive peak reverse voltage 1200V.
One energy-saving safe arm uses common rectifying tube：Temporarily it is designed as ZPX- 6000/14, per 14 common rectifying tubes of arm
It is in parallel.Every common rectifying tube on-state average current 6000A, repetitive peak reverse voltage 1400V.
4th, Energy-saving Data is analyzed：
To simplify the analysis, rectification circuit inversion work period angle ξn° 15 ° are taken as, by the Analysis of electric performance in electrolytic cell, because
DC current in electrolytic cell is certain value, Id=25000A, can be approximately considered a rectifier arm operating time in a cycle
Interior inductance is certain value, and the energy of unit time is equal, and the discharge energy of unit time inductance is equal to rechargeable energy.Commutation
The percentage that angle accounts for a rectifier arm operating time is exactly the energy consumption percentage saved.
Set out analysis by moment inversion this phenomenon in the switching process of rectification circuit, each rectifier arm operating time is
120°.In the case where there is idle conversion arm, each rectifier arm is a length of 120 ° -15 °=105 ° when being electric tank working.This patent
Novel rectifying circuit altogether power cost saving：15/120 × 100%=12.5%.
Claims (9)
1. novel rectifying circuit, it is characterized in that：Including rectification circuit, idle conversion arm, load；
Wherein, rectification circuit connects with load；
Wherein, the both ends parallel reactive conversion arm of load；
Wherein, idle conversion arm is made up of controlled valve device or uncontrollable valve device；
Wherein, novel rectifying circuit uses the idle method for transformation of novel rectifying circuit.
2. novel rectifying circuit as claimed in claim 1, it is characterized in that：Including three-phase double reverse-star band paralleing reactor rectification
Circuit, two idle conversion arms, load or including direct current reactor；
Wherein, load and direct current reactor are composed in series series circuit；
Wherein, three-phase double reverse-star band paralleing reactor rectification circuit or with load connect, or with it is described load and direct current reactance
The series circuit connection that device is composed in series；
Wherein, each idle conversion arm in parallel of two commutation groups of three-phase double reverse-star rectification circuit；
Wherein, idle conversion arm is made up of controlled valve device or uncontrollable valve device.
3. novel rectifying circuit as claimed in claim 1, it is characterized in that：Including three-phase five-limb double reverse-stars type without balance electricity
Anti- device rectification circuit, one or two is idle conversion arm, load or including direct current reactor；
Wherein, load and direct current reactor are composed in series series circuit；
Wherein, three-phase five-limb double reverse-stars type without paralleing reactor rectification circuit or with load connect, or with it is described load and
The series circuit connection that direct current reactor is composed in series；
Wherein, three-phase five-limb double reverse-stars type is each one idle turn in parallel without two commutation groups of paralleing reactor rectification circuit
Two commutation groups for changing arm or three-phase five-limb double reverse-stars type without paralleing reactor rectification circuit are common in parallel one idle turn
Change arm；
Wherein, idle conversion arm is by controlled valve device or uncontrollable valve device.
4. novel rectifying circuit as claimed in claim 1, it is characterized in that：It is whole including three-phase fully-controlled or half control or non-phased bridge-type
Current circuit, idle conversion arm, load or including direct current reactor；
Wherein, load and direct current reactor are composed in series series circuit；
Wherein, the three-phase fully-controlled or half control or non-phased bridge rectifier or with load connect, or with it is described load and directly
The series circuit connection that stream reactor is composed in series；
Wherein, the both ends parallel reactive conversion arm of the both ends of load or the load and direct current reactor series circuit；
Wherein, idle conversion arm is made up of controlled valve device or uncontrollable valve device.
5. novel rectifying circuit as claimed in claim 1, it is characterized in that：Including six phase star neutral points draw rectification circuit,
Idle conversion arm, load or including direct current reactor；
Wherein, load and direct current reactor are composed in series series circuit；
Wherein, six phase neutral points are drawn rectification circuit or connected with load, or are composed in series with the load and direct current reactor
Series circuit connection；
Wherein, the both ends parallel reactive conversion arm of the both ends of load or the load and direct current reactor series circuit；
Wherein, idle conversion arm is made up of controlled valve device or uncontrollable valve device.
6. novel rectifying circuit as claimed in claim 1, it is characterized in that：It is whole including full control or half control or non-phased single-phase bridge
Current circuit, idle conversion arm, load or including direct current reactor；
Wherein, load and direct current reactor are composed in series series circuit；
Wherein, the full control or half control or non-phased single phase bridge type rectifier circu or connected with load, or with the load and directly
The series circuit connection that stream reactor is composed in series；
Wherein, the both ends parallel reactive conversion arm of the both ends of load or the load and direct current reactor series circuit；
Wherein, idle conversion arm is made up of controlled valve device or uncontrollable valve device.
7. novel rectifying circuit as claimed in claim 1, it is characterized in that：Including single-phase full wave midpoint draw circuit, idle turn
Change arm, load or including direct current reactor；
Wherein, load and direct current reactor are composed in series series circuit；
Wherein, single-phase full wave midpoint is drawn circuit or connected with load, or be composed in series with the load and direct current reactor
Series circuit connects；
Wherein, the both ends parallel reactive conversion arm of the both ends of load or the load and direct current reactor series circuit；
Wherein, idle conversion arm is made up of controlled valve device or uncontrollable valve device.
8. novel rectifying circuit is idle method for transformation, it is characterized in that：In full control or one commutation group of half-controlled rectifier circuit two according to
Secondary conductive rectifier arm is at the commutation point of phase voltage intersections of complex curve, the phase voltage of conductive rectifier arm 1, and will be conductive
Rectifier arm 2 phase voltage it is equal, will conductive rectifier arm 2 control phased angle α to be more than critical phased angle αL, rectifier entrance
Moment inversion working condition, the electrical angle ξ of inversion work period angle operating timen=α-αL；Turned off in commutation phase and rectifier arm 2
Electrical angle ξnPeriod, rectification circuit is unable to catastrophe characteristicses using inductive load or capacity load electric current, voltage, by idle
Arm is converted to the short circuit effect of load the quadergy stored in load, the self-loopa between idle conversion arm and load, is turned into
Active energy.
9. novel rectifying circuit is idle method for transformation, it is characterized in that：Novel rectifying circuit rectification circuit voltage during commutation is dashed forward
Drop, novel rectifying circuit are unable to catastrophe characteristicses using inductive load or capacity load electric current, voltage, pass through idle conversion arm pair
The quadergy stored in load the self-loopa between idle conversion arm and load, is turned into active energy by the short circuit effect of load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710808180.XA CN107395033A (en) | 2017-09-09 | 2017-09-09 | Novel rectifying circuit and idle method for transformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710808180.XA CN107395033A (en) | 2017-09-09 | 2017-09-09 | Novel rectifying circuit and idle method for transformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107395033A true CN107395033A (en) | 2017-11-24 |
Family
ID=60349566
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710808180.XA Pending CN107395033A (en) | 2017-09-09 | 2017-09-09 | Novel rectifying circuit and idle method for transformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107395033A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707898A (en) * | 2020-07-14 | 2020-09-25 | 中车大连机车车辆有限公司 | Load testing method of train power supply system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87106609A (en) * | 1987-09-29 | 1988-05-18 | 黄定元 | Semi-controlled three-phase bridge rectifier circuit not out of control |
| CN1845448A (en) * | 2006-04-20 | 2006-10-11 | 李荟敏 | Brushless DC motor control circuit and its power module |
| CN101345508A (en) * | 2008-04-30 | 2009-01-14 | 中国电力科学研究院 | Controllable afterflow method and excitation system of magnetic controlled shunt reactor |
-
2017
- 2017-09-09 CN CN201710808180.XA patent/CN107395033A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87106609A (en) * | 1987-09-29 | 1988-05-18 | 黄定元 | Semi-controlled three-phase bridge rectifier circuit not out of control |
| CN1845448A (en) * | 2006-04-20 | 2006-10-11 | 李荟敏 | Brushless DC motor control circuit and its power module |
| CN101345508A (en) * | 2008-04-30 | 2009-01-14 | 中国电力科学研究院 | Controllable afterflow method and excitation system of magnetic controlled shunt reactor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707898A (en) * | 2020-07-14 | 2020-09-25 | 中车大连机车车辆有限公司 | Load testing method of train power supply system |
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Application publication date: 20171124 |