CN109818360A - Combination capacitor compensation device and connection method - Google Patents
Combination capacitor compensation device and connection method Download PDFInfo
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- CN109818360A CN109818360A CN201910148278.6A CN201910148278A CN109818360A CN 109818360 A CN109818360 A CN 109818360A CN 201910148278 A CN201910148278 A CN 201910148278A CN 109818360 A CN109818360 A CN 109818360A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E40/30—Reactive power compensation
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Abstract
The present invention provides a kind of combination capacitor compensation device and connection methods, are related to the technical field of inductive load high frequency high current power supply system, and capacitance compensation network includes multiple capacitance compensation branches.Capacitance compensation branch includes: a capacitor, at least three relay switches, and a pole plate of capacitor is connected with input line terminal, the first series-parallel terminal, another pole plate of capacitor is connected with output line terminal, the second series-parallel terminal.The processor of control unit is used to calculate the connection type of capacitance compensation network and controls the mode of capacitance compensation branch access system power bus, when processor calculates the connection type of capacitance compensation network and controls the mode of capacitance compensation branch access system power bus, the calculating of top-priority series capacitor quantity, thus can realize the concatenated access way of capacitor as much as possible.
Description
Technical field
The present invention relates to inductive load high frequency high current power supply system technical fields, mend more particularly, to a kind of combination capacitor
Repay device and connection method.
Background technique
When inductive load high frequency high current power supply system works, distributed inductance and load inductance meeting as present on cable
High-frequency current is caused to decline, usually usable Electric capacity compensation device is used to offset the inhibition that inductive load moves back high-frequency current,
When setting up RLC resonant network, there are many kinds of selection, the technical program is directed to a kind of by capacitor benefit capacitance compensation network
The series-parallel any combination for repaying branch is obtained closest to the equivalent capacitance value for meeting resonance requirement, while being connected as far as possible using capacitor
The capacitance compensation network that mode is set up, to reduce requirement to capacitor pressure voltage, meet Electric capacity compensation device to equipment cost and
The requirement of equipment installation.
Summary of the invention
In view of this, it is an object of the invention to the capacitance compensation nets as much as possible that mode is connected in series using capacitor
Network, to reduce the requirement to single capacitor pressure voltage.
In a first aspect, the embodiment of the invention provides a kind of combination capacitor compensation devices, including to be set to system power supply total
Capacitance compensation network and control unit on line.
Capacitance compensation network includes multiple capacitance compensation branches.
Capacitance compensation branch includes: a capacitor, at least three relay switches, and a pole plate of capacitor is connected with
Input line terminal, the first series-parallel terminal, another pole plate of capacitor are connected with output line terminal, the second series-parallel terminal,
Input line terminal with the input line of system power supply bus for connecting, and output line terminal is for the output line with system power supply bus
Connection, the first series-parallel terminal are used to connect with the second series-parallel terminal of adjacent capacitor compensation branch, the second series-parallel terminal
For being connect with the first series-parallel terminal of adjacent capacitor compensation branch.
Control unit includes processor, and processor is used to calculate the connection type of capacitance compensation network and controls capacitance compensation
The mode of branch access system power bus.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein institute
State at least three relay switches in capacitance compensation branch include: be set between capacitor and input line terminal first after
Electric appliance, the second relay being set between capacitor and output line terminal, be set to capacitor and the first series-parallel terminal it
Between third relay.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein institute
State at least three relay switches in capacitance compensation branch include: be set between capacitor and input line terminal first after
Electric appliance, the second relay being set between capacitor and output line terminal, be set to capacitor and the second series-parallel terminal it
Between third relay.
The possible embodiment of with reference to first aspect the first, the embodiment of the invention provides the third of first aspect
Possible embodiment, wherein capacitance compensation branch further includes that the first control signal connecting with the connector of control unit passes
Defeated line, the second control signal transmission line being connect with the connector of control unit, the third being connect with the connector of control unit
Signal transmssion line is controlled, processor transmits the switch state of the first relay of line traffic control by first control signal, and processor is logical
The switch state of second control signal transmission the second relay of line traffic control is crossed, processor controls signal transmssion line by third and controls
The switch state of third relay.
The third possible embodiment with reference to first aspect, the embodiment of the invention provides the 4th kind of first aspect
Possible embodiment, wherein first control signal transmission line, second control signal transmission line, third control signal transmssion line
The switch state of relay switch is controlled by the isolation method of magnetic coupling or optical coupling.
With reference to first aspect, the embodiment of the invention provides the 5th kind of possible embodiments of first aspect, wherein place
Reason device further includes serial port, the setting that control unit is sent by the transmitter that the serial port of processor receives system power supply bus
Data, the setting data include the target capacitance value that system power supply bus needs to be inserted into.
Operating state data is sent to the transmitter of system power supply bus by the serial port that control unit also passes through processor
In, which includes the capacitance compensation network whether combination capacitor compensation device is arranged pass signal, finally realizes
Practical equivalent capacitance value.
With reference to first aspect, the embodiment of the invention provides the 6th kind of possible embodiments of first aspect, wherein every
Capacitor in a capacitance compensation branch is all the same.
With reference to first aspect, the embodiment of the invention provides the 7th kind of possible embodiments of first aspect, wherein more
Capacitor in a capacitance compensation branch is noninductive capacitor.
With reference to first aspect, the embodiment of the invention provides the 8th kind of possible embodiments of first aspect, wherein institute
The possible access way for stating multiple capacitance compensation branch access system power bus includes: series connection access, access in parallel, short circuit
Connection and bypass connection.
Second aspect, the embodiment of the present invention also provide a kind of connection method of combination capacitor compensation device, comprising: Duo Ge electricity
The capacitance for holding the capacitor in compensation branch is C, and the number of capacitance compensation branch is N, and target capacitance value is Cx。
The number of series arm in capacitance compensation network is Np, the capacitance compensation circuitry number in each series arm is ns,
S-th of capacitance compensation branch in p-th of series arm is Bps, BpsThe relay switch of a capacitance compensation branch is respectively
Kps1、Kps2、Kps3, the control signal transmssion line with relay switch case cooperation is respectively Sps1、Sps2、Sps3。
Calculate the quantity n of the capacitor concatenated in each series arms:
Wherein, nsIt is 1 to the largest natural number that can use between N.
Calculate the quantity N of series armp:
NpTo guarantee NpnsThe maximum integer of < N.
According to nsAnd NpCalculate the practical equivalent capacitance value C that capacitance compensation network is realizedy。
If Cy>Cx, then in the series arm of capacitance compensation network of successively capacitor that does not access of residue being connected, directly
To CyWith CxDifference minimum when stop seal in.
If Cy<Cx, then successively reduce connect in series arm in capacitance compensation network into capacitors count, until Cy
With CxDifference minimum when stop reduce.
The embodiment of the present invention brings following the utility model has the advantages that capacitance compensation net is arranged in the present apparatus in system power supply bus
Network, capacitance compensation network and system power supply bus form RLC resonant network, as the basic unit of capacitance compensation network, capacitor
Compensating branch has good expansion structure and flexibly accurate connection control method, and processor calculates the company of capacitance compensation network
When connecing mode and controlling the mode of capacitance compensation branch access system power bus, the meter of top-priority series capacitor quantity
It calculates, thus can realize the concatenated access way of capacitor as much as possible, to the resistance to of the single capacitor in capacitance compensation network
Pressure value requires purpose that is lower, and then can realizing equipment entirety small size and low cost.
Further, since combination capacitor compensation device needs often to adjust reality according to the variation of supply current and working frequency
Border equivalent capacitance value, the mode flexible and selectable of the capacitance compensation branch access system power bus of the present apparatus and control speed it is fast,
It is high to control precision, practical equivalent capacitance value can be fast implemented closest to target capacitance value, have and control simple, RLC resonance
Compensation effect is good, practical equivalent capacitance value is regulated the speed the advantages that fast and applied widely.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of combination capacitor compensation device provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of capacitance compensation branch provided in an embodiment of the present invention；
Fig. 3 is the attachment structure schematic diagram of capacitance compensation network provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of supply network provided in an embodiment of the present invention；
Fig. 5 is the connection circuit diagram of three capacitance compensation branches provided in an embodiment of the present invention；
Fig. 6 is the connection circuit diagram of three capacitance compensation branches provided in an embodiment of the present invention；
Fig. 7 is the connection circuit diagram of three capacitance compensation branches provided in an embodiment of the present invention；
Fig. 8 is the connection circuit diagram of three capacitance compensation branches provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in figure 4, system power supply bus includes input line and output line, label input line is LineH, marks output line
For LineL, supply network includes LineH, LineL, service cable and transmitter.Combination capacitor provided in an embodiment of the present invention is mended
Device is repaid to be arranged between LineH and LineL.
Inductance is distributed on the service cable of LineH, LineL, distributed inductance will lead to supply current with working frequency
It increases and rapid decrease, the reduction amount by measuring supply current can calculate the numerical value of distributed inductance, according to distribution electricity
The numerical value of sense and the frequency of supply current can calculate target capacitance value, and it is single which can be sent to control by transmitter
In the processor of member；
High frequency is that capacitance compensation network composition RLC resonant network is sealed in system power supply bus for the principle of electronic compensating,
The resonance frequency of the RLC resonant network be equal to or to the greatest extent close to working frequency when, entire supply network is to power supply electricity
Source shows pure resistance characteristic, and resistance is minimum, supply current is maximum.Resistance R, the inductance L of entire supply network are humorous in network
When vibration, maximum in the network quality factor Q value of high band, the capacitor for needing to seal in is small, in the network quality factor Q value of low-frequency range
Small, the capacitor for needing to seal in is big.The voltage for accessing capacitance compensation network both ends is equal to the product of Q and supply voltage, humorous meeting
Under conditions of vibration requires, the connection method of combination capacitor compensation device should use the concatenated mode of capacitor as far as possible, to reduce to list
The requirement of a capacitor pressure voltage.
Based on above-mentioned requirements, a kind of combination capacitor compensation device provided in an embodiment of the present invention and connection method, purpose
Be: the capacitance compensation network as much as possible that mode is connected in series using capacitor wants single capacitor pressure voltage with reducing
It asks.
Embodiment one:
As shown in Figure 1, the embodiment of the invention provides a kind of combination capacitor compensation devices, including to be set to system power supply total
Capacitance compensation network and control unit on line.
Capacitance compensation network includes multiple capacitance compensation branches, and the number of the series arm in capacitance compensation network is Np,
Capacitance compensation circuitry number in each series arm is ns, s-th of capacitance compensation branch in p-th of series arm is Bps, the
BpsThe relay switch of a capacitance compensation branch is respectively Kps1、Kps2、Kps3, the control signal with relay switch case cooperation
Transmission line is respectively Sps1、Sps2、Sps3, in order to simplify statement in attached drawing 1, only illustrated with S1, S2, S3.
Capacitance compensation branch includes: a capacitor, at least three relay switches, and a pole plate of capacitor is connected with
Input line terminal, the first series-parallel terminal, another pole plate of capacitor are connected with output line terminal, the second series-parallel terminal,
Input line terminal with the input line of system power supply bus for connecting, and output line terminal is for the output line with system power supply bus
Connection, the first series-parallel terminal are used to connect with the second series-parallel terminal of adjacent capacitor compensation branch, the second series-parallel terminal
For being connect with the first series-parallel terminal of adjacent capacitor compensation branch.
One pole plate of capacitor is connected with input line terminal (H terminal), the first series-parallel terminal (MH terminal), capacitor
Another pole plate be connected with output line terminal (L terminal), the second series-parallel terminal (ML terminal).
Control unit includes processor, and processor is used to calculate the connection type of capacitance compensation network and controls capacitance compensation
The mode of branch access system power bus.
Capacitance compensation network is arranged in the present apparatus in system power supply bus, and capacitance compensation network is formed with system power supply bus
RLC resonant network, as the basic unit of capacitance compensation network, capacitance compensation branch has good expansion structure and flexibly essence
True connection control method, processor calculate the connection type of capacitance compensation network and control the confession of capacitance compensation branch access system
When the mode of electric bus, the calculating of top-priority series capacitor quantity, thus can realize capacitor series connection as much as possible
Access way, the pressure voltage of the single capacitor in capacitance compensation network is required lower, and then can realize that equipment is integrally small
The purpose of volume and low cost.
Further, since combination capacitor compensation device needs often to adjust reality according to the variation of supply current and working frequency
Border equivalent capacitance value, the mode flexible and selectable of the capacitance compensation branch access system power bus of the present apparatus and control speed it is fast,
It is high to control precision, practical equivalent capacitance value can be fast implemented closest to target capacitance value, have and control simple, RLC resonance
Compensation effect is good, practical equivalent capacitance value is regulated the speed the advantages that fast and applied widely.
Embodiment two:
As shown in Figure 1-3, present embodiments providing a kind of preferred embodiment of combination capacitor compensation device, including setting
In capacitance compensation network and control unit in system power supply bus.
Capacitance compensation network includes multiple capacitance compensation branches, and the number of the series arm in capacitance compensation network is Np,
Capacitance compensation circuitry number in each series arm is ns, s-th of capacitance compensation branch in p-th of series arm is Bps, the
BpsThe relay switch of a capacitance compensation branch is respectively Kps1、Kps2、Kps3, the control signal with relay switch case cooperation
Transmission line is respectively Sps1、Sps2、SpsIn order to simplify statement in 3, attached drawing 1-2, only illustrated with S1, S2, S3.
Capacitance compensation branch includes: a capacitor, at least three relay switches, the electricity in each capacitance compensation branch
Container is all the same, and the capacitor is noninductive capacitor, and a pole plate of capacitor is connected with input line terminal, the first series-parallel end
Son, another pole plate of capacitor are connected with output line terminal, the second series-parallel terminal, and input line terminal is used for and system power supply
The input line of bus connects, and for connecting with the output line of system power supply bus, the first series-parallel terminal is used for output line terminal
It is connect with the second series-parallel terminal of adjacent capacitor compensation branch, the second series-parallel terminal is used for and adjacent capacitor compensation branch
First series-parallel terminal connection.
One pole plate of capacitor is connected with input line terminal (H terminal), the first series-parallel terminal (MH terminal), capacitor
Another pole plate be connected with output line terminal (L terminal), the second series-parallel terminal (ML terminal).
At least three relay switches in the capacitance compensation branch include: be set to capacitor and input line terminal it
Between the first relay, the second relay being set between capacitor and output line terminal, be set to capacitor and first string
Third relay between terminal in parallel, first control signal transmission line, second control signal transmission line, third control signal pass
Defeated line controls the switch state of relay switch by the isolation method of magnetic coupling or optical coupling.
One pole plate of capacitor is connected with input line terminal (H terminal), the first series-parallel terminal (MH terminal), capacitor
Another pole plate be connected with output line terminal (L terminal), the second series-parallel terminal (ML terminal).
Capacitance compensation branch further includes that the first control signal transmission line connecting with the connector of control unit and control are single
The second control signal transmission line of the connector connection of member, the third control signal transmission being connect with the connector of control unit
Line, processor transmit the switch state of the first relay of line traffic control by first control signal, and processor passes through the second control letter
The switch state of number transmission line traffic control the second relay, processor control signal transmssion line control third relay by third
Switch state.
Control unit includes processor, and processor is used to calculate the connection type of capacitance compensation network and controls capacitance compensation
The mode of branch access system power bus.
Processor further includes serial port, and control unit receives the transmitter of system power supply bus by the serial port of processor
The setting data of transmission, the setting data include the target capacitance value that system power supply bus needs to be inserted into, and control unit is also logical
Operating state data is sent in the transmitter of system power supply bus by the serial port for crossing processor, which includes
The practical equivalent capacitance value for the capacitance compensation network that whether combination capacitor compensation device be arranged pass signal, finally realizes.
Embodiment three:
The embodiment of the present invention also provides a kind of connection method of combination capacitor compensation device, comprising: multiple capacitance compensation branch
The capacitance of capacitor in road is C, and the number of capacitance compensation branch is N, and target capacitance value is Cx。
As shown in figure 3, the number of the series arm in capacitance compensation network is Np, capacitance compensation in each series arm
Circuitry number is ns, s-th of capacitance compensation branch in p-th of series arm is Bps, BpsThe relay of a capacitance compensation branch
Switch is respectively Kps1、Kps2、Kps3, the control signal transmssion line with relay switch case cooperation is respectively Sps1、Sps2、
Sps3。
Calculate the quantity n of the capacitor concatenated in each series arms:
Wherein, nsIt is 1 to the largest natural number that can use between N.
Calculate the quantity N of series armp:
NpTo guarantee NpnsThe maximum integer of < N.
According to nsAnd NpCalculate the practical equivalent capacitance value C that capacitance compensation network is realizedy。
If Cy>Cx, then in the series arm of capacitance compensation network of successively capacitor that does not access of residue being connected, directly
To CyWith CxDifference minimum when stop seal in.
If Cy<Cx, then successively reduce connect in series arm in capacitance compensation network into capacitors count, until Cy
With CxDifference minimum when stop reduce.
Processor calculates the connection type of capacitance compensation network and controls capacitance compensation branch access system power bus
When mode, the calculating of top-priority series capacitor quantity, thus can realize the concatenated access side of capacitor as much as possible
Formula, requires the pressure voltage of the single capacitor in capacitance compensation network lower, and then can realize equipment entirety small size and low
The purpose of cost.
Example IV:
As shown in figure 5, it includes showing for three capacitance compensation branches that the embodiment of the present invention, which specifically lists capacitance compensation network,
Example, the specific connection method of three capacitance compensation branches in the present embodiment are as follows: K11, K12, K13, K21, K22, K23, K31,
K32, K33 closure, capacitor are bypassed, LineH and LineL short circuit connection.
The practical equivalent capacity of capacitance compensation network is 0uF in the present embodiment.
Embodiment five:
As shown in fig. 6, it includes showing for three capacitance compensation branches that the embodiment of the present invention, which specifically lists capacitance compensation network,
, the specific connection method of three capacitance compensation branches in the present embodiment are as follows: K11, K12, K21, K22, K31, K32 closure,
K13, K23, K23 are disconnected, C1, C2, C3 parallel connection method.
The practical equivalent capacity of capacitance compensation network is 3C in the present embodiment.
Embodiment six:
As shown in fig. 7, it includes showing for three capacitance compensation branches that the embodiment of the present invention, which specifically lists capacitance compensation network,
, the specific connection method of three capacitance compensation branches in the present embodiment are as follows: K11, K21, K22, K32, K33 are disconnected, K12,
K13, K23, K31 closure, C1, C2, C3 tandem-type connection.
The practical equivalent capacity of capacitance compensation network is 1/3C in the present embodiment.
Embodiment seven
As shown in figure 8, it includes showing for three capacitance compensation branches that the embodiment of the present invention, which specifically lists capacitance compensation network,
, the specific connection method of three capacitance compensation branches in the present embodiment are as follows: K11, K22, K23, K33 are disconnected, K12, K13,
K21, K31, K32 closure, C1, C2 series connection, with C3 parallel connection method.
The practical equivalent capacity of capacitance compensation network is 3/2C in the present embodiment.
Unless specifically stated otherwise, the opposite step of the component and step that otherwise illustrate in these embodiments, digital table
It is not limit the scope of the invention up to formula and numerical value.
The technical effect and preceding method embodiment phase of device provided by the embodiment of the present invention, realization principle and generation
Together, to briefly describe, Installation practice part does not refer to place, can refer to corresponding contents in preceding method embodiment.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
It with the specific work process of device, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In all examples being illustrated and described herein, any occurrence should be construed as merely illustratively, without
It is as limitation, therefore, other examples of exemplary embodiment can have different values.
The flow chart and block diagram in the drawings show the system of multiple embodiments according to the present invention, method and computer journeys
The architecture, function and operation in the cards of sequence product.In this regard, each box in flowchart or block diagram can generation
A part of one module, section or code of table, a part of the module, section or code include one or more use
The executable instruction of the logic function as defined in realizing.It should also be noted that in some implementations as replacements, being marked in box
The function of note can also occur in a different order than that indicated in the drawings.For example, two continuous boxes can actually base
Originally it is performed in parallel, they can also be executed in the opposite order sometimes, and this depends on the function involved.It is also noted that
It is the combination of each box in block diagram and or flow chart and the box in block diagram and or flow chart, can uses and execute rule
The dedicated hardware based system of fixed function or movement is realized, or can use the group of specialized hardware and computer instruction
It closes to realize.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or components can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be through some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the executable non-volatile computer-readable storage medium of a processor.Based on this understanding, of the invention
Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) executes each embodiment institute of the present invention
State all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can be with
Store the medium of program code.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of combination capacitor compensation device, including the capacitance compensation network being set in system power supply bus and control unit,
It is characterized by:
Capacitance compensation network includes multiple capacitance compensation branches；
Capacitance compensation branch includes: a capacitor, at least three relay switches, and a pole plate of capacitor is connected with input
Line terminals, the first series-parallel terminal, another pole plate of capacitor are connected with output line terminal, the second series-parallel terminal, input
For connecting with the input line of system power supply bus, output line terminal is used to connect with the output line of system power supply bus line terminals
It connects, the first series-parallel terminal is used to connect with the second series-parallel terminal of adjacent capacitor compensation branch；
Control unit includes processor, and processor is used to calculate the connection type of capacitance compensation network and controls capacitance compensation branch
The mode of access system power bus.
2. combination capacitor compensation device according to claim 1, which is characterized in that in the capacitance compensation branch at least
Three relay switches include:
The first relay being set between capacitor and input line terminal, be set between capacitor and output line terminal
Two relays, the third relay being set between capacitor and the first series-parallel terminal.
3. combination capacitor compensation device according to claim 1, which is characterized in that in the capacitance compensation branch at least
Three relay switches include:
The first relay being set between capacitor and input line terminal, be set between capacitor and output line terminal
Two relays, the third relay being set between capacitor and the second series-parallel terminal.
4. combination capacitor compensation device according to claim 2, which is characterized in that capacitance compensation branch further includes and controls
The first control signal transmission line of the connector connection of unit, the second control signal transmission being connect with the connector of control unit
Line, the third connecting with the connector of control unit control signal transmssion line, and processor transmits line traffic control by first control signal
The switch state of the first relay is made, processor transmits the switch state of the second relay of line traffic control by second control signal,
Processor controls the switch state that signal transmssion line controls third relay by third.
5. combination capacitor compensation device according to claim 4, which is characterized in that first control signal transmission line, second
It controls signal transmssion line, third control signal transmssion line and relay switch is controlled by the isolation method of magnetic coupling or optical coupling
Switch state.
6. combination capacitor compensation device according to claim 1, which is characterized in that processor further includes serial port, control
The setting data that unit is sent by the transmitter that the serial port of processor receives system power supply bus, the setting data include
System power supply bus needs the target capacitance value being inserted into；
Operating state data is sent in the transmitter of system power supply bus by the serial port that control unit also passes through processor, should
Operating state data includes the reality of capacitance compensation network whether combination capacitor compensation device is arranged pass signal, finally realizes
Equivalent capacitance value.
7. combination capacitor compensation device according to claim 1, which is characterized in that the capacitor in each capacitance compensation branch
Device is all the same.
8. combination capacitor compensation device according to claim 1, which is characterized in that the capacitor in multiple capacitance compensation branches
Device is noninductive capacitor.
9. combination capacitor compensation device according to claim 1, which is characterized in that the multiple capacitance compensation branch access
The mode that enters of system power supply bus includes: series connection access, access in parallel, short circuit connection and bypass connection.
10. a kind of connection method of combination capacitor compensation device, which is characterized in that be applied to such as any one of claim 1 to 9 institute
In the processor for the combination capacitor compensation device stated；
The described method includes:
The capacitance of capacitor in multiple capacitance compensation branches is C, and the number of capacitance compensation branch is N, target capacitance value
For Cx；
The number of series arm in capacitance compensation network is Np, the capacitance compensation circuitry number in each series arm is ns, pth
S-th of capacitance compensation branch in a series arm is Bps, BpsThe relay switch of a capacitance compensation branch is respectively Kps1、
Kps2、Kps3, the control signal transmssion line with the cooperation of relay switch case is respectively Sps1、Sps2、Sps3；
Calculate the quantity n of the capacitor concatenated in each series arms:
Wherein, nsIt is 1 to the largest natural number that can use between N；
Calculate the quantity N of series armp:
NpTo guarantee NpnsThe maximum integer of < N；
According to nsAnd NpCalculate the practical equivalent capacitance value C that capacitance compensation network is realizedy；
If Cy>Cx, then in the series arm of capacitance compensation network of successively capacitor that does not access of residue being connected, until Cy
With CxDifference minimum when stop seal in；
If Cy<Cx, then successively reduce connect in series arm in capacitance compensation network into capacitors count, until CyWith Cx's
Stop reducing when difference minimum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910148278.6A CN109818360B (en) | 2019-02-27 | 2019-02-27 | Combined capacitance compensation device and connection method |
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| CN111695319A (en) * | 2020-06-05 | 2020-09-22 | 苏州浪潮智能科技有限公司 | Method and equipment for compensating inductance of series loop of connector in real time |
| CN111856182A (en) * | 2020-07-15 | 2020-10-30 | 国网青海省电力公司电力科学研究院 | Capacitor tower |
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