CN105141141B - A kind of load multimode combination pressure regulation power supply circuit and its method of supplying power to - Google Patents
A kind of load multimode combination pressure regulation power supply circuit and its method of supplying power to Download PDFInfo
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- CN105141141B CN105141141B CN201510641457.5A CN201510641457A CN105141141B CN 105141141 B CN105141141 B CN 105141141B CN 201510641457 A CN201510641457 A CN 201510641457A CN 105141141 B CN105141141 B CN 105141141B
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Abstract
The invention discloses a kind of load multimode combination pressure regulation power supply circuits, include a transformer, a switch element, at least two loads and at least N+1 and the at most regulation component of 2N 1, wherein, transformer is with N number of tap, and N >=2；The resistance sizes and the time of its work that load is all cascaded and each loads are negatively correlated, it is connected respectively by N number of regulation component and N number of tap of transformer positioned at most first load, load positioned at most end is connect respectively with remaining regulation component, and the sequence with tapping ratio from small to large, it is seriatim connect by regulation component with the tap of transformer；The zero potential end of switch element one end and transformer connects, and the other end is connected between two loads of arbitrary neighborhood, for switching the reference potential of load.The present invention switches the connection status of load end using the combination of regulation component different working condition, reduces device, simplifies circuit, cost-effective, improves power supply quality.
Description
Technical field
The present invention relates to a kind of power supply circuit, more particularly to a kind of load multimode combination pressure regulation power supply circuit is main to use
In industrial processes, the load supplying for variation.
Background technology
In photovoltaic, electronics, microelectronic industry, polysilicon is its main raw material(s).Polysilicon be using metallic silicon as raw material,
HIGH-PURITY SILICON through a series of physics, chemical reaction purification.Since improvement Siemens process being capable of compatible electronic grade and solar energy
The production of level polysilicon with its technology maturation, is suitble to the features such as industrialization production, is the head that current production of polysilicon generally uses
Technique is selected, which needs large power supply heated constant temperature to control polycrystalline silicon rod.
Polysilicon is equivalent to the very big load group of impedance variations in entire production process, and voltage range becomes from 2000V/m
Change to 10V/m, for current range from 0~3000A, whole process voltage, curent change range are big, electrical system matching is proposed compared with
High request is divided into double diffusion at present, and 2000V/m~100V/m voltage high currents are smaller, handled by high-voltage power apparatus；
200V/m~10V/m voltages are larger with respect to low current, handled by mesolow supply unit.Therefore, stage, i.e. voltage are high in the early stage
When electric current is smaller, load the high-voltage power apparatus of access power supply circuit in parallel, in next stage, i.e., voltage with respect to low current compared with
Greatly, the mesolow supply unit of load in series access power supply circuit.
Wherein, a kind of polycrystalline reduction power supply silicon rod is simultaneously as disclosed in the patent of invention application No. is 200910058454.3
The control loop of series connection uses switch to combine reactor and realizes that the connection in series-parallel to load changes, and pass through by triggering control system
The thyristor of system control, to complete the variation of the voltage of load from high to low, shunt circuit thyristor and series loop thyristor
Different operating, complicated, devices use rate is low.For another example application No. is 201120238067.0 patent of invention disclosed in it is a kind of
The connection in series-parallel power supply circuit of varying duty is still to realize that the connection in series-parallel to load changes, and utilizes multiple crystalline substances by switching
Brake tube forms 2 parallel power regulating loops, is equivalent to the combinational circuit of the patent of invention application No. is 200910058454.3.
But due to being to be related to being flowed pressure regulation by reactance during the two parallel connection, since the presence of its reactor just determines system
When one state (S1) works, first branch load and the second branch load must be equal, if two branch circuit loads differed
Greatly, then pressure regulation will fail.
Invention content
To solve the technical issues of above-mentioned, the present invention provides a kind of load multimode combination pressure regulation power supply circuit, including
One transformer, a switch element, at least two loads and at least N+1 and the regulation component of at most 2N-1, wherein, the change
Depressor has N number of tap, and N >=2；
The load is all cascaded and the time of the resistance sizes of each load and its work is in negative
It closes, is connect respectively by N number of regulation component with N number of tap of the transformer positioned at the most first load, positioned at most
The load at end is connect, and the sequence with tapping ratio from small to large with regulation component remaining described respectively, passes through the tune
Tap of the component seriatim with the transformer is pressed to connect；
The switch element one end is connect with the zero potential end of the transformer, and the other end is connected to arbitrary neighborhood
Between two loads, for switching the reference potential of load.
According to a kind of specific embodiment, the transformer is single-phase transformer or three-phase transformer.
According to a kind of specific embodiment, the regulation component is thyristor or IGBT.
According to a kind of specific embodiment, the switch element is thyristor or IGBT or controllable contact switch.
The present invention also provides a kind of load multimodes to combine pressure regulation method of supplying power to, including,
S1：Transformer open power supply while closure switch element, first branch electric current pass through with positioned at most first load
It is flowed into after the regulation component of connection and is located at most first load, the second branch electric current passes through the pressure regulation with the load connection positioned at most end
The load positioned at most end is flowed into after component, and through the switch element stream after first branch electric current and the second branch electric current confluence
Go back to the zero potential end of the transformer；
S2：When the series resistance being loaded between the switch element described in most first reaches first threshold and works as position
Series resistance between the switch element is loaded to described in most end reaches second threshold, then closes the switch element,
Electric current with being flowed into after the regulation component of most first load connection by being located at most first load, then from the load positioned at most end
After outflow the transformer is flowed back to by the regulation component with being connected positioned at the load of most end.
According to a kind of specific embodiment, be connected with being only operated in phase shift positioned at the regulation component of most first load connection
Or completely switched off two kinds of working conditions；Among the regulation component with being connected positioned at the load of most end, at least one, which has, moves
It is conducted, fully on and completely switched off three kinds of working conditions and at least one regulation component are only operated in phase shift conducting
Or completely switched off two kinds of working conditions.
According to a kind of specific embodiment, the switch element be thyristor or IGBT, then its be only operated in and lead completely
Logical or completely switched off two kinds of working conditions.
The beneficial effects of the present invention are：The circuit of the present invention uses the group of thyristor voltage regulation component different working condition
It closes, to switch the different connections of load end, reduces device, simplify circuit, it is cost-effective, improve power supply quality.
Description of the drawings
Fig. 1 is the implementation structure chart that present invention load multimode combines pressure regulation power supply circuit；
Fig. 2 is the current direction schematic diagram for the first stage that present invention load multimode combines pressure regulation method of supplying power to；
Fig. 3 is the current direction schematic diagram for the second stage that present invention load multimode combines pressure regulation method of supplying power to.
Specific embodiment
It is described in detail below in conjunction with the accompanying drawings.
The load multimode combination pressure regulation power supply circuit of the present invention, including a transformer, a switch element, at least
Two loads and at least N+1 and the regulation component of at most 2N-1, wherein, transformer has N number of tap, and N >=2.
With reference to present invention load multimode combination pressure regulation power supply circuit shown in FIG. 1；Wherein, transformer has 5 taps,
That is N=5,6 loads are respectively R1, R2, R3, R4, R5 and R6, and 8 regulation components are respectively D1~D8, and regulation component D1
~D8 and switch element D0 is thyristor.
Load R1, R2, R3, R4, R5 and R6 are all cascaded, and the resistance sizes each loaded and its work
Time is negatively correlated.
It connect, and the sequence with tapping ratio from small to large, leads to regulation component D1~D5 respectively positioned at most first load R1
Regulation component D1~D5 is crossed seriatim to connect with the tap of transformer.Positioned at most end load R6 respectively with remaining regulation component
D6~D8 connections, and the sequence with tapping ratio from small to large are seriatim connected by regulation component D6~D8 with the tap of transformer
It connects.
One end of switch element D0 and the zero potential end of transformer connect, and the other end be connected to arbitrary neighborhood two are negative
Between load, for switching the reference potential of load.In Fig. 1, switch element D0 is arranged between R4 and R5.
In the present invention, transformer can be single-phase transformer or three-phase transformer, regulation component can be selected thyristor or
Thyristor or IGBT or controllable contact switch can be selected in IGBT, switch element.
The present invention also provides a kind of method of supplying power to based on above-mentioned load multimode combination pressure regulation power supply circuit, wherein sheet
There are two stages, i.e. first stage S1 and second stage S2 for method of supplying power to tool in invention.
Wherein, only it is operated in phase shift on or fully off with the regulation component D1~D5 being connect positioned at most first load R1
Two kinds of working conditions.Among the regulation component being connect with positioned at the load R6 of most end, at least one regulation component, which has, moves
It is conducted, fully on and completely switched off three kinds of working conditions and at least one regulation component are only operated in phase shift conducting
Or completely switched off two kinds of working conditions.Switch element be thyristor or IGBT, then its be only operated in fully on or completely switched off
Two kinds of working conditions.
Specifically, since alternating current is generally sinusoidal waveform, positive half cycle accounts for 180 degree, and negative half period accounts for 180 degree.Pass through control
Thyristor and when alternating current pass through the thyristor when, make to start to lead at its unspecified angle in the 0-180 degree of alternating current
It is logical.Such as when positive half cycle is added to silicon-controlled anode, when AC current angle is 30 degree, one is added to the control pole of thyristor
Trigger pulse, then thyristor can only be by remaining 150 degree of electric current, so as to fulfill output voltage continuous variable.
With reference to the current direction signal of the first stage of present invention load multimode combination pressure regulation method of supplying power to shown in Fig. 2
Figure；Wherein, first stage S1：Transformer open power supply while closure switch element D0, first branch electric current respectively pass through with
After regulation component D1~D5 of most first load R1 connections, flow into and be located at most first load R1.The second branch electric current passes through
With after regulation component D6~D8 that the load R6 of most end is connect, flowing into the load R6 positioned at most end, and first branch electricity
The zero potential end of transformer is flowed back to after stream and the second branch path electric current confluence through switch element D0.
Wherein, the angle of flow of regulation component D1~D5 works according to the demand phase shift lamination of load R1~R4, brilliant lock
The angle of flow of tube assembly D6~D8 works according to the demand phase shift lamination of load R5 and R6, and first branch electric current is through thyristor
After component D1~D5 laminations, again pass through R1, R2, R3, R4, D0 and eventually pass back to transformer, the second branch electric current is through flowing into thyristor
After component D6~D8 laminations, again pass through R6, R5, D0 and eventually pass back to transformer, reached load R1~R4 composition a part with
It loads R5 and loads the purpose of another part independent operating of R6 compositions.
With reference to the current direction signal of the second stage of present invention load multimode combination pressure regulation method of supplying power to shown in Fig. 3
Figure；Wherein, second stage S2：It is when reaching first threshold positioned at most first load R1 to the voltage between switch element D0, i.e., negative
When the series resistance of load R1~R4 reaches first threshold, and as the load R6 positioned at most end to the series electrical between switch element D0
Resistance reaches second threshold, i.e., when load R5 reaches second threshold with the voltage for loading R6, then turns off the switch element D0.
After turning off the switch element D0, electric current flows into the regulation component D2~D5 laminations being connect with positioned at most first load R1
Afterwards, it then flows into positioned at most first load R1, and from after the load R6 of most end outflows, is flowing into and the load R6 positioned at most end
The regulation component D6 of connection flows back to transformer by regulation component D6.
Wherein, switch element D0 is made to be in completely switched off working condition first, has been in regulation component D1, D7, D8
The working condition of full cut-off, regulation component D4 and D5 are in the working condition of phase shift lamination conducting, and regulation component D6 is in complete
The working condition of conducting, in next step when load R1~R6 resistance further decline, then regulation component D3 and D4 is made to be in phase shift
Lamination conducting working condition, then in next step when load R1~R6 resistance further decline, then make regulation component D2 and D3
Working condition in the conducting of phase shift lamination.In above process, can according to the resistance sizes for loading R1~R6 and finally
State adjusts the angle of flow of regulation component D2~D5 and carries out phase shift stack process accordingly, and electric current is by regulation component D2~D5
Outflow is last through overload R1, R2, R3, R4, R5, R6, D6, returns to transformer T1 using D6, has reached load R1~R4 groups
Into a part with load R5 and load R6 form another part series operation purpose.
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can disclose in the present invention
Various solutions are found out under the inspiration of content, and these solutions also belong to disclosure of the invention range and fall into this hair
Within bright protection domain.It will be understood by those skilled in the art that description of the invention and its attached drawing are illustrative and are not
Form limitations on claims.Protection scope of the present invention is limited by claim and its equivalent.
Claims (3)
1. a kind of method of supplying power to for loading multimode combination pressure regulation power supply circuit, the load multimode combination pressure regulation power supply circuit
Including a transformer, a switch element, at least two loads and at least N+1 and the regulation component of at most 2N-1, wherein, institute
Stating transformer has N number of tap, and N >=2；The load is all cascaded and the resistance sizes of each load
It is negatively correlated with the time of its work, pass through N number of regulation component and the transformer respectively positioned at the most first load
The connection of N number of tap, the load positioned at most end connect, and with tapping ratio by as low as respectively with regulation component remaining described
Big sequence is connect by tap of the regulation component seriatim with the transformer；The switch element one end and institute
The zero potential end connection of transformer is stated, the other end is connected between two loads of arbitrary neighborhood, is loaded for switching
Reference potential；It is characterized by comprising the following steps
S1：Closure switch element while transformer opens power supply, first branch electric current with positioned at most first load by connecting
Regulation component after flow into be located at most first load, the second branch electric current pass through and positioned at most end load connection regulation component
The load positioned at most end is flowed into afterwards, and first branch electric current through the switch element after the second branch electric current confluence with flowing back to institute
State the zero potential end of transformer；
S2：When the series resistance being loaded between the switch element described in most first reaches first threshold and when being located at most
The series resistance being loaded between the switch element at end reaches second threshold, then closes the switch element, electric current
By being located at most first load, then flow out from the load positioned at most end with being flowed into after the regulation component of most first load connection
Afterwards the transformer is flowed back to by the regulation component with being connected positioned at the load of most end.
2. method of supplying power to as described in claim 1, which is characterized in that with the regulation component work positioned at most first load connection
Make in two kinds of working conditions of phase shift on or fully off；Among the regulation component with being connected positioned at the load of most end, at least
There are one have phase shift conducting, fully on and completely switched off three kinds of working conditions and at least one regulation component work
Make in two kinds of working conditions of phase shift on or fully off.
3. method of supplying power to as described in claim 1, which is characterized in that the switch element is thyristor or IGBT, then it is only
It is operated in fully on or completely switched off two kinds of working conditions.
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| CN108134386A (en) * | 2018-01-04 | 2018-06-08 | 江苏绿国新能源科技有限公司 | A kind of distributed energy sale of electricity control device |
| CN116707321B (en) * | 2023-08-08 | 2023-10-13 | 四川英杰电气股份有限公司 | Polycrystalline silicon reduction power supply and control method thereof |
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| CN101498945B (en) * | 2009-02-27 | 2011-01-19 | 四川英杰电气有限公司 | Control circuit for parallel and series connection of polysilicon reduction power supply silicon rod |
| CN202107539U (en) * | 2011-07-07 | 2012-01-11 | 四川英杰电气股份有限公司 | Series-parallel connection supply circuit for changeable loads |
| CN104714443B (en) * | 2014-12-30 | 2017-08-15 | 北京京仪椿树整流器有限责任公司 | A kind of polycrystalline reduction Power Regulation power supply and its electric control system |
| CN204947904U (en) * | 2015-09-30 | 2016-01-06 | 四川英杰电气股份有限公司 | A kind of load multimode combination pressure regulation power supply circuits |
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