CN105391321A - Ultra-large current source - Google Patents
Ultra-large current source Download PDFInfo
- Publication number
- CN105391321A CN105391321A CN201510952591.7A CN201510952591A CN105391321A CN 105391321 A CN105391321 A CN 105391321A CN 201510952591 A CN201510952591 A CN 201510952591A CN 105391321 A CN105391321 A CN 105391321A
- Authority
- CN
- China
- Prior art keywords
- current source
- module
- super
- large current
- 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.)
- Pending
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
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/0077—Plural converter units whose outputs are connected in series
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
The invention relates to an ultra-large current source. The ultra-large current source comprises a transformer, at least one AC/DC module and a plurality of DC/DC modules, wherein the at least one AC/DC module is connected with the transformer and is used for converting AC electric energy provided by the transformer into DC electric energy, and the DC/DC modules are used for converting the DC electric energy into DC electric energy and providing the DC electric energy for a load. The ultra-large current source provided by the invention remarkably improves performances of a current source and has the advantages that a modular structure is provided, online maintenance time can be shortened, multiple spare parts can be prepared, fault time of the current source is integrally reduced, the interchangeability is good, the current output requirement can be met by flexibly adding modules as required, installation, correction, debugging and maintenance are greatly convenient, and the like.
Description
Technical field
The present invention relates to a kind of super-large current source.
Background technology
Need in the field in super-large current source DC transmission system, RHVC, ups power, High-accuracy direct current welding machine, Fine electrolytic plating, Digit Control Machine Tool, accelerator operation, imaging of medical, meticulous smelting, photovoltaic industry etc. are various, current source can export super-large current by high-accuracy stable, is device security reliability service, product high-quality output, obtains the basic assurance of various more precise information.
At present, provide the mode of the current source of super-large current usually to have two kinds: 1, alternating current directly adds the thyristor of large gauge, realized the precise and stable output of super-large current by the angle of flow controlling thyristor; 2, alternating current becomes Rectified alternating current by rectifier diode, and then electric energy is through switching tube supply load, is provided the precise and stable output of super-large current by the time that turns on and off of control switch pipe.
But above two kinds of implementations are all subject to the restriction of semiconductor device specification, and concrete reason is as follows:
First, in mode 1, due to the self character of thyristor, turn on and off the cycle that the time relies on alternating current completely.Same in mode 2, when the current capacity of switching tube reaches the capacity of satisfying the demand, the speed that turns on and off of switching tube drops to below 8KHz.Such switch control rule speed can introduce the ripple of lower frequency in electric current, and these frequency contents of filtering need the LC filter of very large time constant, therefore, adds the volume of current source, limits the application scenario of this type of current source.
Secondly, when needing rated current to exceed the capacity of single semiconductor device, semiconductor switching device when needing in parallel.Switching device in parallel is had higher requirement to drive circuit, needs element to increase, circuit is more complicated, could meet the driving requirement of switching tube.And element increases, the more complicated stability that directly results in whole system of circuit declines, limit the scope of application of this type of current source and power supply.
Again, the current source of above two kinds of modes is all realize electric current with complete machine form to export, and just needs all to shut down, until complete overhaul completes use of could again starting shooting once fault; And machine volume is huge, multi-person synergy is often needed to keep in repair, higher to maintenance maintenance personnel requirement.All this kind, seriously constrain the use of this type of power supply in uninterrupted power supply occasion.
Summary of the invention
In order to solve above-mentioned prior art Problems existing, the present invention aims to provide the super-large current source of a kind of high stability, high accuracy, low ripple, and to use the form of power module parallel connection, the high-quality realizing super-large current exports.
A kind of super-large current source of the present invention, it comprises:
One transformer;
At least one AC/DC module be connected with described transformer, it is for being converted to direct current energy by the AC energy provided by described transformer; And
Multiple for described direct current energy being converted to direct current and being provided to the DC/DC module of a load, each described DC/DC module has and the positive input terminal of described AC/DC model calling and negative input end and the positive output end be connected with described load and negative output terminal, and comprises:
One switch mosfet pipe, its drain electrode is connected with described positive input terminal;
One fly-wheel diode, its negative pole is connected with the source electrode of described switch mosfet pipe, and its positive pole is connected with described negative input end;
One afterflow inductance, its one end is connected with the source electrode of described switch mosfet pipe;
One High frequency filter unit, between the other end that its one end is connected to described afterflow inductance and described positive output end, its other end is connected between described negative input end and negative output terminal;
One current sample transducer, it measures the described direct current that described positive output end exports, and is converted into corresponding voltage signal;
The one AD sampling unit be connected with described current sample transducer, it receives described voltage signal, and is converted into digital signal; And
One control card be connected with described AD sampling unit, it receives described digital signal and after carrying out PID calculating to it, the grid to described switch mosfet pipe exports pwm control signal.
In above-mentioned super-large current source, with the described AC/DC module of multiple described DC/DC model calling while of comprising one.
In above-mentioned super-large current source, comprise multiple respectively with the described AC/DC module of DC/DC model calling described in each.
In above-mentioned super-large current source, described multiple DC/DC block configuration is mutually transmit the synchronous triggering signal exporting described pwm control signal for triggering described control card.
In above-mentioned super-large current source, described current sample transducer is isolated current sensor.
In above-mentioned super-large current source, described High frequency filter unit comprises the filter capacitor and filter resistance that are connected in parallel.
In above-mentioned super-large current source, described AC/DC module comprises and is connected to semiconductor rectifier unit between described transformer and DC/DC module and filter circuit in turn.
In above-mentioned super-large current source, described semiconductor rectifier unit comprises: half-wave rectifying circuit, full-wave rectifying circuit, bridge rectifier, uncontrollable rectifier circuit, half-controlled rectifier circuit or all controlled rectifier circuit.
In above-mentioned super-large current source, described filter circuit comprises: monomer electric capacity or capacitance group.
Owing to have employed above-mentioned technical solution, the present invention, according to Norton theorem, achieves current source parallel connection and uses.Specifically, compared with prior art, the present invention adopts independently small electric stream source module, namely, for exporting the DC/DC module of direct current to load, parallel connection realizes super-large current and exports, therefore, there is very large practical advantages: first, DC/DC module small volume, lighter in weight, a people can move substantially, can change by individual module during fault, reduce complete machine downtime; Meanwhile, little DC/DC module can have comparatively sufficient stock, provides the comparatively sufficient inspection and maintenance time to investigation fault.Secondly, because the output current of every platform DC/DC module is less, wherein the capacity of switch mosfet pipe is less, single tube work can be realized, and succinct drive circuit can be adopted, meanwhile, the switching frequency of the switch mosfet pipe of low capacity can be used in 20kHz and more than, for follow-up filtering miniaturization is laid a good foundation.Again, DC/DC wired in parallel is compared switching semiconductor and is connected in parallel on thermal losses discharge aspect and breaks the whole up into parts, and is more conducive to realizing.In a word, the present invention significantly improves the performance of current source (such as, long-time stability: < 30ppm/24h), and there is modular construction, the on-line maintenance time can be shortened, more spare part can be laid in, overall reduce current source fault time, interchangeability good, can increase flexibly as required module to meet electric current and export needs and to install, calibration, debugging, safeguard the advantages such as all very convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment in a kind of super-large current of the present invention source;
Fig. 2 is the structural representation of the another kind of embodiment in a kind of super-large current of the present invention source;
Fig. 3 is the internal structure schematic diagram of AC/DC module in the present invention;
Fig. 4 is the internal structure schematic diagram of DC/DC module in the present invention.
Embodiment
Below in conjunction with accompanying drawing, provide preferred embodiment of the present invention, and be described in detail.
As shown in Figure 1, 2, the present invention, i.e. a kind of super-large current source, it comprises:
Transformer T;
At least one AC/DC module 1 be connected with transformer T, it is for being converted to direct current energy by the AC energy provided by transformer T; And
Multiple DC/DC module 2 be connected with AC/DC module 1, it is for being converted to direct current by direct current energy and being provided to load 3 (this load 3 can be the forms such as resistive load, inductive load, capacitive load).
Two kinds of different versions of the present invention are respectively at Fig. 1, Fig. 2.Wherein, Fig. 1 shows concentrated direct current supply form, that is, the quantity of AC/DC module 1 is 1, and this AC/DC module 1 is connected with multiple DC/DC module 2 simultaneously; Due to AC/DC technology maturation, thus make integral device compacter; Fig. 2 shows distributing direct current supply form, that is, the quantity of AC/DC module 1 is multiple, each DC/DC module 2 is powered by an AC/DC module 1, direct current can be realized like this and export electric isolution, reduce the capacity of AC/DC module 1 simultaneously, thus reduce the capacity of device.Two kinds of structures respectively have superiority, but can realize the output of overall high stability super-large current.
In the present invention, electrical network electric energy is become suitable voltage form for subsequent conditioning circuit by transformer T, that is, realize the suitable transform of electric pressure, completes the capacity requirement of follow-up transformation of electrical energy simultaneously.Specifically, the electric current that current source of the present invention exports is very large, at least can reach 2000A, can reach electric current large arbitrarily in theory, so adopt three-phase transformer (380V) to power as transformer T in the present invention.If power output is less and output current is also less, can consider to adopt single-phase transformer (220V) power supply; If power output is comparatively large and output voltage is higher, then need by more high-grade transformer-supplied.Concrete supply power mode can be determined according to the product of output dc voltage and output direct current.
In the present invention, the circuit form of AC/DC module 1 is ripe circuit topology, as shown in Figure 3, AC/DC module 1 comprises: be connected to the semiconductor rectifier unit 11 between transformer T and DC/DC module 2 and filter circuit 12 in turn, wherein, semiconductor rectifier unit 11 can comprise half-wave rectifying circuit, full-wave rectifying circuit, bridge rectifier, uncontrollable rectifier circuit, half-controlled rectifier circuit or all controlled rectifier circuit, and in figure 3, semiconductor rectifier unit 11 comprises rectifier bridge D1; Filter circuit 12 can comprise monomer electric capacity or capacitance group, and in figure 3, filter circuit 12 comprises monomer electric capacity C1.In AC/DC module 1, semiconductor rectifier unit 11 is the electrical energy form of single direction voltage for the voltage transformation of the positive and negative both direction by alternating current, becomes unidirectional pulsating voltage electrical energy form through the alternating current AC of over commutation; Monomer electric capacity C in filter circuit 12 has energy storage effect, therefore electric energy can be absorbed in the moment that pulsating voltage is high, electric energy is released in the moment that pulsating voltage is low, choose suitable electric capacity or capacitance group can make the ripple amplitude of one direction voltage at tolerance interval, namely, finishing smooth pulsating voltage, final output dc voltage DC.
In the present invention, DC/DC module 2 can adopt various topological structures form, comprise: step-down form, boost version, buck form, these the three kinds multi-form electric currents that can meet current source export, but require different to the power supply capacity of AC/DC module 1, and the semiconductor device requirement of withstand voltage of DC/DC module 2 inside is had any different, in addition, the control complexity of semiconductor switch device is also different.In a word, step-down form most convenient, modular structure is the simplest; Boost version takes second place, and buck form is taken second place again, but the DC/DC module of buck form can be docked with AC/DC module more neatly.
Specifically, as shown in Figure 4, in the embodiment shown in Fig. 1,2, for realizing facilitating each DC/DC module 1 to select the BUCK circuit form of step-down form, it has the positive input terminal and negative input end that are connected with AC/DC module 1 and the positive output end be connected with load 3 and negative output terminal, and comprises:
Switch mosfet pipe M, its drain electrode is connected with positive input terminal;
Sustained diode 2, its negative pole is connected with the source electrode of switch mosfet pipe M, and its positive pole is connected with negative input end;
Afterflow inductance L, its one end is connected with the source electrode of switch mosfet pipe M;
High frequency filter unit 21, between the other end that its one end is connected to afterflow inductance L and positive output end, its other end is connected between negative input end and negative output terminal;
Current sample transducer DCCT, it measures the direct current that positive output end exports, and is proportionally converted into corresponding voltage signal;
The AD sampling unit 22 be connected with current sample transducer DCCT, its receiver voltage signal, and be converted into digital signal; And
The control card 23 be connected with AD sampling unit 22, its receiving digital signals after carrying out PID calculating to it, the grid to switch mosfet pipe M exports pwm control signal.
In above-mentioned DC/DC module 2, be in standard-sized sheet when switch mosfet pipe M works and lead to and full off state, reduce the power consumption of switch mosfet pipe M with this.When switch mosfet pipe M opens, electric energy flows into afterflow inductance L from DC bus, controls the service time of switch mosfet pipe M, makes the electric current in afterflow inductance L rise within set point; Then switch mosfet pipe M turns off, and utilizes the principle that inductive current can not suddenly change, the loop that the electric energy be stored in afterflow inductance L is consisted of load 3 and sustained diode 2 electric energy transfer in load 3.Because afterflow inductance L generally adopts the inductance with magnetic core, there is the saturation problem of magnetic core magnetic induction, therefore, switch mosfet pipe M service time can not set arbitrarily, to determine that it opens the maximum of turn-off time according to voltage on the magnetic flux density of core material and DC bus-bar voltage and load 3, then backwards calculation obtains needing the frequency of the pwm control signal be added on the grid of switch mosfet pipe M and duty ratio (detailed design can referring to pertinent texts and document, it is prior art, so place repeats no more).After the frequency determining pwm control signal, the signal that control card 23 obtains from current sample transducer DCCT according to AD sampling unit 22 carries out PID calculating, and provide the duty ratio value of pwm control signal, thus switch mosfet pipe M is driven by pwm control signal, control the flow direction of electric energy, complete high stability electric current and export.Whole like this circuit structure just defines the feedback control system of closed loop.
Simultaneously, under switch mosfet pipe M is operated in high frequency state, the electric current exported can with the switching harmonics of high frequency, and affect final output accuracy, so have employed High frequency filter unit 21 in DC/DC module 2, the switching frequency composition in filtering electric current, makes it to be reduced to and section can accept scope, specifically, this High frequency filter unit 21 comprises the filter capacitor C2 and filter resistance R that are connected in parallel.
As can be seen here, suitably regulate the value of filter resistance R and filter capacitor C2 according to load 3 and regulate the pid parameter of FEEDBACK CONTROL, just can obtain the closed-loop stabilization system of function admirable, thus obtain satisfactory current source module, complete high stability and the output of high-precision electric current.
In addition, above-mentioned control card 23 is except for generating except pwm control signal, the functions such as switching on and shutting down, current settings, failure logging, intercard communication be synchronous can also be completed simultaneously, wherein for intercard communication synchronizing function, specifically, multiple DC/DC module 2 is configured to mutually transmit the synchronous triggering signal exporting pwm control signal for trigging control card 23.The working method of synchronous triggering signal has 2 kinds: a, parallel synchronous, first DC/DC module is as the person of sending of synchronous triggering signal, while the work of PWM ripple, send to n-1 DC/DC module below, take this signal as the triggering signal of the pwm control signal of each DC/DC module; B, serial synchronous, first DC/DC module is as the person of sending of synchronous triggering signal, second DC/DC module is sent to while the work of PWM ripple, second DC/DC module sends to the 3rd DC/DC module while the work of PWM ripple, thus successively synchronizing signal is delivered to the n-th DC/DC module.By using synchronous triggering signal, the beat low-frequency ripple that the switching frequency between DC/DC module causes can be reduced.
In above-mentioned DC/DC module 2, current sample transducer DCCT is isolated current sensor, and it utilizes magnetic balance principle to realize isolation measurement electric current.Current sample transducer DCCT plays the part of the sampled part of whole FEEDBACK CONTROL, and sampled part only provides a signal to compare with the reference Setting signal of high stable in whole feedback control system, generates pid algorithm result.If sampled signal has deviation to feed back, DC/DC module is to correct complete machine deviation that sampling deviation causes as feedback control system.So the current sensor of current sampling tracking accuracy within 5ppm must be selected just to complete, and whole current source is stabilized in 20-30ppm magnitude.At present, this type of current sensor can adopt the Realization of Product of IT series of Sinap-DCCT series, LEM company.This current sensor has the high and highly sensitive feature of precision, 20uA electric current can be detected, and long-time stability are at 10ppm, and the accuracy of detection of other current sensors and stability all will be more than low 2 orders of magnitude.The concrete structure of this type of current sensor can (application number: 201410355923.9), this current sensor comprises the high magnetic conduction transformer unit of high permeability magnetic core coiling, pumping signal generating unit, direct current signal detecting unit, direct current signal processing unit, restore circuit unit, AC signal processing unit and power amplification unit etc. as Chinese invention patent application " a kind of alterating and direct current flow sensor ".When tested electric current produces magnetic flux as the former limit of high magnetic conduction transformer unit on the magnetic core of high magnetic permeability, direct current signal detecting unit detects the magnetic flux deflection on magnetic core, on magnetic core produce a contrary equivalent magnetic-flow by power amplification unit by the secondary of high magnetic conduction transformer unit with this signal, then can produce an ampere-turn on the secondary winding and be in reverse to the ampere-turn of primary current and numerical value is equal.Obtain secondary current by the resistance of connecting with secondary coil, thus know the current value on former limit.Because high magnetic conduction transformer unit uses high permeability magnetic core, therefore, after the magnetic flux that primary and secondary electric current produces is offset, remaining remaining magnetic flux is very little, thus ensure that the precision that DCCT measures and accuracy.
As can be seen here, DC/DC module 2 uses according to the output current parallel connection of single module, and output current receives the super-large current value that load 3 just can obtain needed for load 3.If adopt traditional power supply making pattern to propose quite high capacity requirement by the device of power source internal, such as, semiconductor switch device wants the electric current that can bear thousands of A, and the semiconductor device of current capacity like this can only accomplish a few kHz in switching speed on market, thus very high request is proposed to filter circuit below, the more low filter inductance volume more needed of frequency is larger, just can not realize the task that smaller size smaller completes high-performance current output thus.And the present invention is conceived to this just, break the whole up into parts, with the device of general conventional current capacity, the similar mode played with building blocks, the high-quality realizing final super-large current exports.
In sum, ingehious design of the present invention and reasonable employment, super-large current is broken the whole up into parts to be provided to load by multiple DC/DC module, and the stability in total current source and precision all reach tens ppm magnitudes, even better; The present invention is suitable for super-large current and the higher power supply occasion of current stability, requirement, such as, be applied to: the machine ages, crystal growth, precision ECM, sensor test, accelerator magnet power supply, over-current detection, motion precise hard_drawn tuhes etc. of power electronic equipment.
Above-described, be only preferred embodiment of the present invention, and be not used to limit scope of the present invention, the above embodiment of the present invention can also make a variety of changes.Namely every claims according to the present patent application and description are done simple, equivalence change and modify, and all fall into the claims of patent of the present invention.The not detailed description of the present invention be routine techniques content.
Claims (9)
1. a super-large current source, is characterized in that, described current source comprises:
One transformer;
At least one AC/DC module be connected with described transformer, it is for being converted to direct current energy by the AC energy provided by described transformer; And
Multiple for described direct current energy being converted to direct current and being provided to the DC/DC module of a load, each described DC/DC module has and the positive input terminal of described AC/DC model calling and negative input end and the positive output end be connected with described load and negative output terminal, and comprises:
One switch mosfet pipe, its drain electrode is connected with described positive input terminal;
One fly-wheel diode, its negative pole is connected with the source electrode of described switch mosfet pipe, and its positive pole is connected with described negative input end;
One afterflow inductance, its one end is connected with the source electrode of described switch mosfet pipe;
One High frequency filter unit, between the other end that its one end is connected to described afterflow inductance and described positive output end, its other end is connected between described negative input end and negative output terminal;
One current sample transducer, it measures the described direct current that described positive output end exports, and is converted into corresponding voltage signal;
The one AD sampling unit be connected with described current sample transducer, it receives described voltage signal, and is converted into digital signal; And
One control card be connected with described AD sampling unit, it receives described digital signal and after carrying out PID calculating to it, the grid to described switch mosfet pipe exports pwm control signal.
2. super-large current source according to claim 1, is characterized in that, with the described AC/DC module of multiple described DC/DC model calling while that described current source comprising one.
3. super-large current source according to claim 1, is characterized in that, described current source comprise multiple respectively with the described AC/DC module of DC/DC model calling described in each.
4. the super-large current source according to claim 1,2 or 3, is characterized in that, described multiple DC/DC block configuration is mutually transmit the synchronous triggering signal exporting described pwm control signal for triggering described control card.
5. the super-large current source according to claim 1,2 or 3, is characterized in that, described current sample transducer is isolated current sensor.
6. the super-large current source according to claim 1,2 or 3, is characterized in that, described High frequency filter unit comprises the filter capacitor and filter resistance that are connected in parallel.
7. the super-large current source according to claim 1,2 or 3, is characterized in that, described AC/DC module comprises and is connected to semiconductor rectifier unit between described transformer and DC/DC module and filter circuit in turn.
8. super-large current source according to claim 7, is characterized in that, described semiconductor rectifier unit comprises: half-wave rectifying circuit, full-wave rectifying circuit, bridge rectifier, uncontrollable rectifier circuit, half-controlled rectifier circuit or all controlled rectifier circuit.
9. super-large current source according to claim 7, is characterized in that, described filter circuit comprises: monomer electric capacity or capacitance group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510952591.7A CN105391321A (en) | 2015-12-16 | 2015-12-16 | Ultra-large current source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510952591.7A CN105391321A (en) | 2015-12-16 | 2015-12-16 | Ultra-large current source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105391321A true CN105391321A (en) | 2016-03-09 |
Family
ID=55423234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510952591.7A Pending CN105391321A (en) | 2015-12-16 | 2015-12-16 | Ultra-large current source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105391321A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846518A (en) * | 2016-06-23 | 2016-08-10 | 珠海泰坦新动力电子有限公司 | Stage-limiting-free high-voltage charging and discharging serial and parallel connection balancing circuit |
| TWI661643B (en) * | 2018-06-27 | 2019-06-01 | 加百裕工業股份有限公司 | Parallel battery management system and method |
| TWI830419B (en) * | 2020-05-06 | 2024-01-21 | 美商瓦特洛威電子製造公司 | Power converter system, control system comprising the same and method of converting power |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051186A (en) * | 2012-12-29 | 2013-04-17 | 东南大学 | Fast transient response digital switch converter and control method of fast transient response digital switch converter |
| CN103178523A (en) * | 2013-04-16 | 2013-06-26 | 四川英杰电气股份有限公司 | Large-current power supply loop |
| CN103208924A (en) * | 2013-04-18 | 2013-07-17 | 东软飞利浦医疗设备系统有限责任公司 | Kilovolt (KV) control method and system adopting digital technique |
| CN103722284A (en) * | 2013-12-30 | 2014-04-16 | 江苏博大数控成套设备有限公司 | Staggered parallel-connection plasma cutting power source |
| CN103887788A (en) * | 2014-03-25 | 2014-06-25 | 华中科技大学 | Multiport DC-DC autotransformer and application thereof |
| CN104617659A (en) * | 2015-03-02 | 2015-05-13 | 北京华盛源通科技有限公司 | Modularized multi-machine parallel-connection high-power two-way intelligent power supply control system and control method |
| CN104702104A (en) * | 2013-12-10 | 2015-06-10 | 展讯通信（上海）有限公司 | DC-DC (direct current-direct current) conversion device |
| CN104868755A (en) * | 2015-06-12 | 2015-08-26 | 江苏同芯电气科技有限公司 | High-power bidirectional multi-way direct-current simulation power supply |
-
2015
- 2015-12-16 CN CN201510952591.7A patent/CN105391321A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051186A (en) * | 2012-12-29 | 2013-04-17 | 东南大学 | Fast transient response digital switch converter and control method of fast transient response digital switch converter |
| CN103178523A (en) * | 2013-04-16 | 2013-06-26 | 四川英杰电气股份有限公司 | Large-current power supply loop |
| CN103208924A (en) * | 2013-04-18 | 2013-07-17 | 东软飞利浦医疗设备系统有限责任公司 | Kilovolt (KV) control method and system adopting digital technique |
| CN104702104A (en) * | 2013-12-10 | 2015-06-10 | 展讯通信（上海）有限公司 | DC-DC (direct current-direct current) conversion device |
| CN103722284A (en) * | 2013-12-30 | 2014-04-16 | 江苏博大数控成套设备有限公司 | Staggered parallel-connection plasma cutting power source |
| CN103887788A (en) * | 2014-03-25 | 2014-06-25 | 华中科技大学 | Multiport DC-DC autotransformer and application thereof |
| CN104617659A (en) * | 2015-03-02 | 2015-05-13 | 北京华盛源通科技有限公司 | Modularized multi-machine parallel-connection high-power two-way intelligent power supply control system and control method |
| CN104868755A (en) * | 2015-06-12 | 2015-08-26 | 江苏同芯电气科技有限公司 | High-power bidirectional multi-way direct-current simulation power supply |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846518A (en) * | 2016-06-23 | 2016-08-10 | 珠海泰坦新动力电子有限公司 | Stage-limiting-free high-voltage charging and discharging serial and parallel connection balancing circuit |
| TWI661643B (en) * | 2018-06-27 | 2019-06-01 | 加百裕工業股份有限公司 | Parallel battery management system and method |
| TWI830419B (en) * | 2020-05-06 | 2024-01-21 | 美商瓦特洛威電子製造公司 | Power converter system, control system comprising the same and method of converting power |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107733245B (en) | A kind of efficient amplitude modulation perseverance high-frequency electric dust removal power circuit | |
| CN104375039B (en) | Testing system for isolation type direct-current transformer | |
| CN101325367A (en) | Circuit for correcting part active power factor | |
| CN108736727A (en) | Power supply changeover device and its control method | |
| CN102647151A (en) | Cascade speed regulating device for current zero-crossing speed measurement for hardware detection | |
| CN108551268A (en) | 24 Pulses Rectifiers and design method of DC side passive harmonic suppressing method | |
| CN105391321A (en) | Ultra-large current source | |
| CN107947623B (en) | The multi-modal autonomous progress control method of two-way AC/DC converter under the conditions of a kind of laod unbalance | |
| CN101266265B (en) | Method for detecting high voltage frequency converter electric network voltage phase | |
| CN201584790U (en) | Low-voltage dynamic reactive power compensation device | |
| CN108023411A (en) | A kind of single-phase contactless power supply system with power factor emendation function | |
| CN204696771U (en) | The electric supply installation of high pressure electric line on-line monitoring equipment and system | |
| CN106357199B (en) | Electrical machine energy-saving control system and power-economizing method | |
| CN203026940U (en) | Automatic-compensation device detector for arc suppression coil | |
| CN205753433U (en) | It is applied to the device administering three-phase imbalance of low-voltage distribution network | |
| CN102291018A (en) | Single-phase rectifier with APFC (active power factor correction) circuit and alternating-current input voltage amplitude detection method thereof | |
| CN207746524U (en) | Percussion welder control system | |
| CN116760297A (en) | Direct-current voltage source for checking extra-high voltage direct-current transformer and design method thereof | |
| CN203747682U (en) | Device of single-phase AC-DC conversion power supply | |
| CN102097955A (en) | Voltage source for high-voltage direct current transmission converter valve running test | |
| CN203951366U (en) | A kind of power supply for power information acquisition terminal | |
| CN108123625B (en) | A kind of 500KA aluminium electroloysis power-supply rectifying and Fuzzy control system | |
| CN104167728B (en) | Compensation device and compensation method for transmission power angle between micro-grid and large grid | |
| CN109755945B (en) | Magnetically controlled reactor based on pulse current control | |
| CN208094447U (en) | Mining 127V AC powers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160309 |
|
| WD01 | Invention patent application deemed withdrawn after publication |