CN105743370B - A kind of superconducting energy storage current transformer and its modulation system - Google Patents
A kind of superconducting energy storage current transformer and its modulation system Download PDFInfo
- Publication number
- CN105743370B CN105743370B CN201610187007.8A CN201610187007A CN105743370B CN 105743370 B CN105743370 B CN 105743370B CN 201610187007 A CN201610187007 A CN 201610187007A CN 105743370 B CN105743370 B CN 105743370B
- Authority
- CN
- China
- Prior art keywords
- switch
- capacitor
- inductance
- tie point
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/219—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
Abstract
A kind of superconducting energy storage current transformer and its modulation system, it is effectively improving the output electric current of current source converter, to improve the range of power output in such a way that flow increasing circuit is added in the DC terminal of current source converter.It, using rectification and the asymmetrical mode of inversion, improves the effect of flow increasing control in the modulation system in flow increasing circuit.
Description
Technical field
The present invention relates to a kind of superconducting energy storage current transformer and its modulation systems.
Background technique
Due to the particularity of electric energy itself, electric system lacks always energy stores and power control link.At present due to
The big development of system and the requirement of electricity market, electric system have increasing need for flexibly controlling the link of power.Current
Energy storage mode mainly has battery energy storage, super capacitor energy-storage and water-storage.Battery energy storage charge/discharge speed is slow, is not able to satisfy wink
When high-power exchange, and have problem of environmental pollution；Super capacitor energy-storage capacity is small, and charge and discharge number is limited；Water-storage
Then by environmental restrictions, efficiency is too low.And superconducting energy storage, due to its energy storage density height, the service life is long, free of contamination feature, especially suitable
The conjunction short time carries out high-power exchange with system.
The main circuit part of superconductive energy storage system is made of superconducting magnet, superconducting energy storage current transformer two parts.
The general running current of superconducting magnet is a big inductance all at kA grades, this charge and discharge power technology to superconducting magnet,
Current transformer is put forward new requirements.Charging and discharging currents are big, and the variation range of charging/discharging voltage stabilization and voltage is big, need simultaneously
It wants power density big and control performance is good, these contribute to the basic demand of superconducting magnet charge and discharge, especially in commercialization
It is required in miniature superconducting energy storage more urgent.
Currently used Semiconductor Converting Technology scheme is all, such as United States Patent (USP) each a set of using charging/discharging apparatus
Pub.No.US2002/0030952 " superconducting magnet charging method and device ", United States Patent (USP) 5,181,170 " superconducting magnet and its
Power supply unit ".It is above-mentioned in the prior art: achievable two functions of charging: charges when stable state to superconducting magnet and maintain magnet electricity
It flows constant；Discharge equipment, that is, chopper completes quick discharge function.The problem is that: charge and discharge not only need two sets of equipment,
And charging equipment capacity if it should keep the constant quick-charge function of completion again of magnet current is very big, as the U.S. is special
Sharp 6,157,094 " superconducting magnet and its power supply units "；Discharge equipment, US2002/0030952 " the superconducting magnet electric discharge that Fig. 1 shows
Method and device ", 10,11 be magnet part in figure, and 19 be magnet charge power supply, and other parts are discharge portion namely copped wave
Device, the electric current of superconducting magnet is directly converted to voltage by it.It directly cuts magnet current by switch 22 and 23, this makes
Switching loss it is very big, and 25 part of DC voltage need condenser capacity it is very big, thus the excitation voltage of magnet
Greatly, this not only bad for magnet stabilization, and make magnet alternating-current loss increase, improve the operating cost of magnet.
Summary of the invention
In order to overcome the shortcomings of that prior art, the present invention propose a kind of superconducting energy storage current transformer.The present invention passes through in electric current
The mode of flow increasing circuit is added in the DC terminal of source current transformer, the output electric current of current source converter is effectively improved, to mention
The high range of power output.The present invention, using rectification and the asymmetrical mode of inversion, changes in the modulation system in flow increasing circuit
It has been apt to the effect of flow increasing control.
The structure type of superconducting energy storage current transformer of the present invention is as follows: first switch, second switch, third switch, the 4th open
It closes, the 5th switch and the 6th switch form current source converter；The anode of first switch is connected with the cathode of the 4th switch, connects
Contact is the first exchange tie point；First switch constitutes the first half-bridge of current source inverter with the 4th switch；Second switch
Anode is connected with the cathode of the 5th switch, and tie point is the second exchange tie point；Second switch and the 5th switch constitute electric current
Second half-bridge of source inventer；The anode of third switch is connected with the cathode of the 6th switch, and tie point is third exchange connection
Point；Third switch constitutes the third half-bridge of current source inverter with the 6th switch；The cathode of the cathode of first switch, second switch
It links together with the cathode of third switch, tie point is the first direct current tie point；What the anode of the 4th switch, the 5th switched
The anode of anode and the 6th switch links together, and tie point is the second direct current tie point；First exchange tie point, the first electricity
One end of sense and one end of first capacitor are connected with each other；Second exchange tie point, one end of the second inductance and the second capacitor
One end be connected with each other；One end that third exchanges tie point, one end of third inductance and third capacitor is connected with each other；First electricity
The other end of the other end of appearance, the other end of the second capacitor and third capacitor is interconnected to constitute the 4th exchange tie point；The
The other end of one inductance, the second inductance and third inductance is connected with each phase of three phase network respectively；One end of 4th capacitor with
First direct current tie point is connected；One end of 5th inductance is connected with the second direct current tie point；The other end and the 5th of 4th capacitor
The other end of inductance is interconnected to constitute third direct current tie point；One end of 4th inductance is connected with the first direct current tie point；The
One end of five capacitors is connected with the second direct current tie point；The other end of 4th inductance and the other end of the 5th capacitor are connected with each other structure
At the 4th direct current tie point；The cathode of 7th switch is connected with third direct current tie point；The anode and the 4th direct current of 7th switch
Tie point is connected；The both ends of superconducting magnet are connected with the first direct current tie point and the second direct current tie point respectively.Described first opens
Pass, second switch, third switch, the 4th switch, the 5th switch, the 6th switch and the 7th switch are inverse-impedance type switch, or
With one diode substitution of inverse conductivity type switch series connection inverse-impedance type switch.The current source converter is two level three-phases
Current source converter, or power output grade is improved using the three-phase current source current transformer of more level or multiplex.
As follows to the control method of the series current source controller of the structure type: current source converter is sweared by space
Pulse-width regulated control, the controllable three-phase high-frequency pulse current of output amplitude are measured, which passes through current transformer side
First capacitor, after the second capacitor and third capacitor, filter off higher harmonic current, and in first capacitor, the second capacitor and third
The controllable three-phase voltage of amplitude is formed on capacitor, which passes through the first inductance, the second inductance, third inductance, further
Higher harmonic current is filtered off, and carries out active and idle exchange with power grid；The modulation of current source converter uses space vector
The mode of pulsewidth modulation, switching vector selector can be divided into effective vector sum zero vector；Due to its special structure, zero vector can
To be divided into short-circuit zero vector and open circuit zero vector；Under effective vector state, the 7th switch OFF, the electric current of current source converter
For the sum of electric current in the 4th inductance, the 4th capacitor and superconducting magnet, the 4th inductance, the 4th capacitor and the electric current in superconducting magnet
Direction is the direction for flowing out the first direct current tie point, by the mobilization of electric current on the 4th inductance and the 4th capacitor, effectively
Ground improves the control fan-out capability of current source converter；Under short-circuit zero vector, the first half-bridge, the second half-bridge and third half-bridge
In the upper, lower tube of at least one half-bridge all turn on；It, which is charged and discharged, uses different operating modes: in charged state
Under, the 7th switch disconnects, and the 5th inductance is to the 4th capacitor charging, and the electric current on the 5th inductance reduces, the voltage on the 4th capacitor
Increase, the 4th inductance is to the 5th capacitor charging, and the electric current on the 4th inductance reduces, and the voltage on the 5th capacitor increases；It is discharging
Under state, the 7th is closed the switch, if the voltage on the 4th capacitor, the 5th capacitor is positive, the 7th switch conduction, the 4th capacitor and
5th capacitor charges to the 4th inductance, the 5th inductance and superconducting magnet；If the voltage on the 4th capacitor, the 5th capacitor is negative,
7th switch bears back-pressure cut-off, and superconducting magnet is by current source converter afterflow, and the 4th capacitor is to the 5th induction charging, and the 5th
Capacitor is to the 4th induction charging；Under zero vector of opening a way, the first half-bridge, the second half-bridge and third half-bridge all upper bridge arms or under
The switching tube of bridge arm or all upper and lower bridge arms is all off, the 7th closes the switch at this time, in the charge state the 4th capacitor and
Voltage on five capacitors is positive, and the 4th capacitor and the 5th capacitor charge to the 4th inductance, the 5th inductance and superconducting magnet, is discharging
Voltage under state on the 4th capacitor and the 5th capacitor is negative, the 4th capacitor and the 5th capacitor to the 4th inductance, the 5th inductance and
Superconducting magnet electric discharge.
Detailed description of the invention
Fig. 1 is the schematic diagram of prior art United States Patent (USP) US2002/0030952；
Fig. 2 is the circuit topological structure figure of the embodiment of the present invention；
Fig. 3 is the equivalent circuit diagram under the effective vector effect of the embodiment of the present invention；
Fig. 4 is the equivalent circuit diagram under the effect of charged state of embodiment of the present invention zero vector；
Fig. 5 is when the 4th capacitor of the embodiment of the present invention and the 5th capacitance voltage are greater than zero under the effect of discharge condition zero vector
Equivalent circuit diagram；
Fig. 6 be the 4th capacitor of the embodiment of the present invention and the 5th capacitance voltage less than zero when the effect of discharge condition zero vector under
Equivalent circuit diagram；
Fig. 7 is the equivalent circuit diagram that the embodiment of the present invention is opened a way under zero vector effect.
Specific embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 2 is the topological structure of the embodiment of the present invention.As shown in Fig. 2, the structure of the embodiment of the present invention is as follows: first opens
It closes S1, second switch S2, third switch S3, the 4th switch S4, the 5th switch S5 and the 6th switch S6 and forms current source converter
CSC；The anode of first switch S1 is connected with the cathode of the 4th switch S4, and tie point is the first exchange tie point PA1；First opens
Close the first half-bridge HB1 that S1 and the 4th switch S4 constitutes current source converter CSC；The anode of second switch S2 and the 5th switch S5
Cathode be connected, tie point be second exchange tie point PA2；Second switch S2 and the 5th switch S5 constitutes current source inverter
The second half-bridge HB2 of CSC；The anode of third switch S3 is connected with the cathode of the 6th switch S6, and tie point is that third exchange connects
Contact PA3；Third switch S3 and the 6th switch S6 constitutes the third half-bridge HB3 of current source converter CSC；The yin of first switch S1
The cathode of pole, the cathode of second switch S2 and third switch S3 links together, and tie point is the first direct current tie point PD1；
Anode, the anode of the 5th switch S5 and the anode of the 6th switch S6 of 4th switch S4 links together, tie point second
Direct current tie point PD2；First exchange tie point PA1, one end of the first inductance L1 and one end of first capacitor C1 are connected with each other；
Second exchange tie point PA2, one end of the second inductance L2 and one end of the second capacitor C2 are connected with each other；Third exchanges tie point
One end of PA3, one end of third inductance L3 and third capacitor C3 are connected with each other；The other end of first capacitor C1, the second capacitor
The other end of C2 and the other end of third capacitor C3 are interconnected to constitute the 4th exchange tie point PA4；First inductance L1, second
The other end of inductance L2 and third inductance L3 are connected with each phase of three phase network respectively；One end of 4th capacitor C4 is straight with first
Tie point PD1 is flowed to be connected；One end of 5th inductance L5 is connected with the second direct current tie point PD2；The 4th capacitor C4 other end and
The other end of five inductance L5 is interconnected to constitute third direct current tie point PD3；One end of 4th inductance L4 is connect with the first direct current
Point PD1 is connected；One end of 5th capacitor C5 is connected with the second direct current tie point PD2；The other end of 4th inductance L4 and the 5th electricity
The other end for holding C5 is interconnected to constitute the 4th direct current tie point PD4；The cathode and third direct current tie point PD3 of 7th switch S7
It is connected；The anode of 7th switch S7 is connected with the 4th direct current tie point PD4；The both ends of superconducting magnet SC connect with the first direct current respectively
Contact PD1 and the second direct current tie point PD2 is connected.The first switch S1, second switch S2, third switch S3, the 4th switch
S4, the 5th switch S5, the 6th switch S6 and the 7th switch S7 are inverse-impedance type switch, or with series connection one two, inverse conductivity type switch
The pole pipe substitution inverse-impedance type switch.The current source converter CSC is two level three-phase current source current transformers, or is used
The three-phase current source current transformer of more level or multiplex improves power output grade.
Fig. 3 is the equivalent circuit diagram under the effective vector effect of the embodiment of the present invention.Under the effect of effective vector, current source becomes
The capacitor for flowing device exchange side forms equivalent voltage source V in DC sidepn, under effective vector state, the 7th switch S7 shutdown, electric current
The electric current of source current transformer CSC is the sum of electric current on the 4th inductance L4, the 4th capacitor C4 and superconducting magnet SC, the 4th inductance L4, the
Sense of current on four capacitor C4 and superconducting magnet SC is to flow out the direction of the first direct current tie point PD1, passes through the 4th electricity
The mobilization for feeling electric current on L4 and the 4th capacitor C4, effectively improves the power output capacity of current source converter CSC.
Fig. 4 is the equivalent circuit diagram under the effect of charged state of embodiment of the present invention zero vector.Under short-circuit zero vector, first
The upper, lower tube of at least one half-bridge all turns in half-bridge HB1, the second half-bridge HB2 and third half-bridge HB3, ignores switching tube
Pressure drop, the DC terminal of current source converter CSC can be equivalent to a conducting wire；In the charge state, the 7th switch S7 is disconnected, the
Five inductance L5 charge to the 4th capacitor C4, and the electric current on the 5th inductance L5 reduces, and the voltage on the 4th capacitor C4 increases, the 4th electricity
Sense L4 charges to the 5th capacitor C5, and the electric current on the 4th inductance L4 reduces, and the voltage on the 5th capacitor C5 increases.
Fig. 5 is when the 4th capacitor of the embodiment of the present invention and the 5th capacitance voltage are greater than zero under the effect of discharge condition zero vector
Equivalent circuit diagram.In the discharged condition, the 7th switch S7 is closed, if the voltage on the 4th capacitor C4, the 5th capacitor C5 is positive,
I.e. identical as polarity marked in Fig. 5, the 7th switch S7 is connected at this time, ignores the switch tube voltage drop of the 7th switch S7, can be with
It is equivalent to a conducting wire, the 4th capacitor C4 and the 5th capacitor C5 are to the 4th inductance L4, the 5th inductance L5 and superconducting magnet SC
Charging.
Fig. 6 be the 4th capacitor of the embodiment of the present invention and the 5th capacitance voltage less than zero when the effect of discharge condition zero vector under
Equivalent circuit diagram.In the discharged condition, the 7th switch S7 is closed, if the voltage on the 4th capacitor C4, the 5th capacitor C5 is negative,
I.e. with polarity marked in Fig. 6 on the contrary, the 7th switch (S7) bears back-pressure cut-off, superconducting magnet SC is become by the first current source
Device CSC afterflow is flowed, the 4th capacitor C4 charges to the 5th inductance L5, and the 5th capacitor C5 charges to the 4th inductance L4.
Fig. 7 is the equivalent circuit diagram that the embodiment of the present invention is opened a way under zero vector effect.Under zero vector of opening a way, the first half-bridge
The switching tube of all upper bridge arms or lower bridge arm or all upper and lower bridge arms of HB1, the second half-bridge HB2 and third half-bridge HB3 is all disconnected
It opens, the 7th switch S7 is connected at this time, ignores the switch tube voltage drop of the 7th switch S7, can be equivalent to a conducting wire, filled
Voltage under electricity condition on the 4th capacitor C4 and the 5th capacitor C5 is positive, identical as polarity marked in figure, the 4th capacitor C4
With the 5th capacitor C5 to the 4th inductance L4, the 5th inductance L5 and superconducting magnet SC charge, in the discharged condition the 4th capacitor C4 and
Voltage on 5th capacitor C5 is negative, with polarity marked in figure on the contrary, the 4th capacitor C4 and the 5th capacitor C5 is to the 4th electricity
Feel L4, the 5th inductance L5 and superconducting magnet SC electric discharge.
Claims (1)
1. a kind of superconducting energy storage current transformer, which is characterized in that in the superconducting energy storage current transformer: first switch (S1), second open
It closes (S2), third switch (S3), the 4th switch (S4), the 5th switch (S5) and the 6th switch (S6) and forms current source converter
(CSC)；The anode of first switch (S1) is connected with the cathode of the 4th switch (S4), and tie point is the first exchange tie point
(PA1)；First switch (S1) constitutes first half-bridge (HB1) of current source converter (CSC) with the 4th switch (S4)；Second switch
(S2) anode is connected with the cathode of the 5th switch (S5), and tie point is the second exchange tie point (PA2)；Second switch (S2)
Second half-bridge (HB2) of current source converter (CSC) is constituted with the 5th switch (S5)；The anode of third switch (S3) is opened with the 6th
The cathode for closing (S6) is connected, and tie point is that third exchanges tie point (PA3)；Third switchs (S3) and constitutes with the 6th switch (S6)
The third half-bridge (HB3) of current source converter (CSC)；The cathode and third of the cathode of first switch (S1), second switch (S2)
The cathode of switch (S3) links together, and tie point is the first direct current tie point (PD1)；The anode of 4th switch (S4), the
The anode of the anode of five switches (S5) and the 6th switch (S6) links together, and tie point is the second direct current tie point (PD2)；
One end of first exchange tie point (PA1), one end of the first inductance (L1) and first capacitor (C1) is connected with each other；Second exchange
One end of tie point (PA2), one end of the second inductance (L2) and the second capacitor (C2) is connected with each other；Third exchanges tie point
(PA3), one end of third inductance (L3) and one end of third capacitor (C3) are connected with each other；The other end of first capacitor (C1),
The other end of second capacitor (C2) and the other end of third capacitor (C3) are interconnected to constitute the 4th exchange tie point (PA4)；
The other end of first inductance (L1), the second inductance (L2) and third inductance (L3) is connected with each phase of three phase network respectively；The
One end of four capacitors (C4) is connected with the first direct current tie point (PD1)；One end of 5th inductance (L5) and the second direct current tie point
(PD2) it is connected；The other end of 4th capacitor (C4) and the other end of the 5th inductance (L5) are connected with each other, and constitute the connection of third direct current
Point (PD3)；One end of 4th inductance (L4) is connected with the first direct current tie point (PD1)；One end and second of 5th capacitor (C5)
Direct current tie point (PD2) is connected；The other end of the other end of 4th inductance (L4) and the 5th capacitor (C5) is connected with each other, and constitutes the
Four direct current tie points (PD4)；The cathode of 7th switch (S7) is connected with third direct current tie point (PD3)；7th switch (S7)
Anode is connected with the 4th direct current tie point (PD4)；The both ends of superconducting magnet (SC) respectively with the first direct current tie point (PD1) and
Two direct current tie points (PD2) are connected；The first switch (S1), second switch (S2), third switch (S3), the 4th switch
(S4), the 5th switch (S5), the 6th switch (S6) and the 7th switch (S7) are that inverse-impedance type switchs, or with inverse conductivity type switch series
Join diode substitution inverse-impedance type switch；The current source converter (CSC) is the change of two level three-phase current sources
Device is flowed, or power output grade is improved using the three-phase current source current transformer of more level or multiplex；
It is as follows to the control method of the superconducting energy storage current transformer:
Current source converter (CSC) is adjusted by space vector pulse width and is controlled, the controllable three-phase high-frequency pulse current of output amplitude,
After the three-phase high-frequency pulse current is by the first capacitor (C1) of current transformer side, the second capacitor (C2) and third capacitor (C3), filter
Higher harmonic current is removed, and forms three of amplitude controllably on first capacitor (C1), the second capacitor (C2) and third capacitor (C3)
Phase voltage, the three-phase voltage pass through the first inductance (L1), the second inductance (L2), third inductance (L3), and it is humorous further to filter off high order
Wave electric current, and active and idle exchange is carried out with power grid；The modulation of current source converter (CSC) uses space vector pulse width tune
The mode of system, switching vector selector are divided into effective vector sum zero vector, and zero vector is divided into short-circuit zero vector and open circuit zero vector；?
Under effective vector state, the 7th switch (S7) shutdown, the electric current of current source converter (CSC) is the 4th inductance (L4), the 4th electricity
Hold the sum of electric current, the electricity in the 4th inductance (L4), the 4th capacitor (C4) and superconducting magnet (SC) in (C4) and superconducting magnet (SC)
The direction of stream is the direction for flowing out the first direct current tie point (PD1), is powered on by the 4th inductance (L4) and the 4th capacitor (C4)
The mobilization of stream improves the control fan-out capability of current source converter (CSC)；Under short-circuit zero vector, the first half-bridge
(HB1), the upper, lower tube of at least one half-bridge all turns in the second half-bridge (HB2) and third half-bridge (HB3)；Its charge and
Electric discharge uses different operating modes: in the charge state, the 7th switch (S7) disconnects, and the 5th inductance (L5) is to the 4th capacitor
(C4) it charges, the electric current on the 5th inductance (L5) reduces, and the voltage on the 4th capacitor (C4) increases, and the 4th inductance (L4) is to the 5th
Capacitor (C5) charges, and the electric current on the 4th inductance (L4) reduces, and the voltage on the 5th capacitor (C5) increases；In the discharged condition,
7th switch (S7) closure, if the voltage on the 4th capacitor (C4), the 5th capacitor (C5) is positive, the 7th switch (S7) conducting,
4th capacitor (C4) and the 5th capacitor (C5) charge to the 4th inductance (L4), the 5th inductance (L5) and superconducting magnet (SC)；If
Voltage on 4th capacitor (C4), the 5th capacitor (C5) is negative, and the 7th switch (S7) bears back-pressure cut-off, and superconducting magnet (SC) is logical
Overcurrent source current transformer (CSC) afterflow, the 4th capacitor (C4) charge to the 5th inductance (L5), and the 5th capacitor (C5) is to the 4th inductance
(L4) it charges；Under zero vector of opening a way, all upper bridges of the first half-bridge (HB1), the second half-bridge (HB2) and third half-bridge (HB3)
The switching tube of arm or lower bridge arm or all upper and lower bridge arms is all off, at this time the 7th switch (S7) closure, and in the charge state the
Voltage on four capacitors (C4) and the 5th capacitor (C5) is positive, and the 4th capacitor (C4) and the 5th capacitor (C5) are to the 4th inductance
(L4), the 5th inductance (L5) and superconducting magnet (SC) charging, in the discharged condition on the 4th capacitor (C4) and the 5th capacitor (C5)
Voltage be negative, the 4th capacitor (C4) and the 5th capacitor (C5) are to the 4th inductance (L4), the 5th inductance (L5) and superconducting magnet
(SC) it discharges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610187007.8A CN105743370B (en) | 2016-03-29 | 2016-03-29 | A kind of superconducting energy storage current transformer and its modulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610187007.8A CN105743370B (en) | 2016-03-29 | 2016-03-29 | A kind of superconducting energy storage current transformer and its modulation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105743370A CN105743370A (en) | 2016-07-06 |
| CN105743370B true CN105743370B (en) | 2019-05-03 |
Family
ID=56252333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610187007.8A Expired - Fee Related CN105743370B (en) | 2016-03-29 | 2016-03-29 | A kind of superconducting energy storage current transformer and its modulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105743370B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108183700B (en) * | 2018-01-23 | 2021-01-05 | 山东理工大学 | Multi-module mode superconducting energy storage repetition frequency pulse power supply |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10174441A (en) * | 1996-12-16 | 1998-06-26 | Toshiba Corp | Current form conversion device |
| CN101872965A (en) * | 2010-06-18 | 2010-10-27 | 中国科学院电工研究所 | Current-limiting energy storage circuit and control method thereof |
| CN103825457A (en) * | 2014-02-24 | 2014-05-28 | 华南理工大学 | Quasi-Z-source DC-DC boost converter circuit |
| CN104113262A (en) * | 2013-10-16 | 2014-10-22 | 广东美的制冷设备有限公司 | Variable frequency air-conditioner and motor control system based on Z-source converter |
-
2016
- 2016-03-29 CN CN201610187007.8A patent/CN105743370B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10174441A (en) * | 1996-12-16 | 1998-06-26 | Toshiba Corp | Current form conversion device |
| CN101872965A (en) * | 2010-06-18 | 2010-10-27 | 中国科学院电工研究所 | Current-limiting energy storage circuit and control method thereof |
| CN104113262A (en) * | 2013-10-16 | 2014-10-22 | 广东美的制冷设备有限公司 | Variable frequency air-conditioner and motor control system based on Z-source converter |
| CN103825457A (en) * | 2014-02-24 | 2014-05-28 | 华南理工大学 | Quasi-Z-source DC-DC boost converter circuit |
Non-Patent Citations (2)
| Title |
|---|
| "Z-源变流器关键技术的研究";丁新平;《中国博士学位论文全文数据库工程科技II辑，2008年第4期》;20080415;126-127页 * |
| "电流型超导储能变流器关键技术研究";李君;《中国博士学位论文全文数据库工程科技II辑，2006年第8期》;20060815;15页，23页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105743370A (en) | 2016-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10483788B2 (en) | Charging method for sub-module based hybrid converter | |
| WO2017181927A1 (en) | Direct current switch-off device and control method thereof | |
| CN109391166A (en) | A kind of translation circuit, control method and power supply unit | |
| CN102522882B (en) | Protection circuit of converter power component | |
| CN103066587B (en) | A kind of Optimal Configuration Method of modular multi-level flexible direct current system | |
| US20110242855A1 (en) | Power Converter | |
| CN104702114A (en) | Switch capacitance access high frequency bi-directional DC (direct current) transformer and control method thereof | |
| CN110601525B (en) | Integrated vehicle-mounted charging conversion system of new energy automobile | |
| CN209448659U (en) | A kind of more DC port inverters | |
| CN108155825A (en) | Isolated form Modular multilevel converter | |
| CN106169885B (en) | A kind of switch of tandem type six multi-electrical level inverter | |
| CN109755960A (en) | A kind of nine electrical level inverter topological structure of single-phase grid-connected switching capacity | |
| CN108173442A (en) | Isolated form Modular multilevel converter based on High Frequency Link technology | |
| CN210430911U (en) | Direct current breaker | |
| CN101707367B (en) | Superconducting current-limiting energy storage circuit | |
| CN110266191A (en) | A kind of Sofe Switch type two-way series controlled resonant converter and its permanent gain control method | |
| CN208571618U (en) | A kind of battery energy storage system of Multiple coil resonance separate current control | |
| CN105743370B (en) | A kind of superconducting energy storage current transformer and its modulation system | |
| CN206117540U (en) | Switch accurate Z source dc -to -ac converter of type high -gain that steps up | |
| CN102437743B (en) | Boost conversion circuit, solar inverter and control method thereof | |
| CN204906215U (en) | MMC module circuit with ability is blocked to direct current side trouble | |
| CN207124475U (en) | Energy-storage system | |
| CN100571004C (en) | A kind of control method of charging and discharging currents of adjuster for superconducting magnet | |
| CN204696955U (en) | A kind of photovoltaic DC-to-AC converter adopting transformer auxiliary resonance | |
| CN113726162A (en) | Series network type transformer based on voltage reduction type public direct current bus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190503 |