CN109445511A - A kind of 10 kilovolts of thyristor controlled series compensation power regulating systems - Google Patents
A kind of 10 kilovolts of thyristor controlled series compensation power regulating systems Download PDFInfo
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- CN109445511A CN109445511A CN201811442437.5A CN201811442437A CN109445511A CN 109445511 A CN109445511 A CN 109445511A CN 201811442437 A CN201811442437 A CN 201811442437A CN 109445511 A CN109445511 A CN 109445511A
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- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 230000005611 electricity Effects 0.000 claims abstract description 5
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- 230000001186 cumulative effect Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
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Abstract
The invention belongs to power electronics field, in particular to a kind of 10 kilovolts of thyristor controlled series compensation power regulating systems, specifically grouping have grade is adjusted and thyristor continuously adjusts between two-stage synthesis regulating circuit in the application of 10KV thyristor alternating-current regulating circuit.It is to have grade to adjust by the multistage of constant power grade to constitute with a set of continuous voltage regulating circuit, adds a voltage adjustment cabinet to form in vitro by multiple switch cabinet connecting and disconnecting segmentally heating；The multiple branches of system point, the corresponding one group of load calandria of each branch；For voltage-adjusting unit by switches, the branch that being coupled with need to access carries out voltage adjustment；After this branch has arrived total pressure output, voltage adjuster changing-over to next branch continues voltage adjustment；The configuration of the appearances such as six tributary capacities realizes that output power is continuously adjusted from 0 to seamless maximum value.It is simple with structure, reasonable feature is designed, can directly take electricity in the power grid of 10KV, the pressure regulation requirement that power is megawatt is completed, makes output voltage continuously smooth pressure regulation.
Description
Technical field
The invention belongs to power electronics field, in particular to a kind of 10 kilovolts of thyristor controlled series compensation power regulating systems,
The synthesis regulating circuit for having grade adjusting and thyristor to continuously adjust between two-stage is specifically grouped in 10 kilovolts of thyristor alternating-current tune
The application of volt circuit.
Background technique
High-power electric boiler power is very big, and low-voltage power supply is no longer satisfied requirement, it is desirable that using 10 kilovolts of power supplies.One
As take the heater of multiple power grades to be segmented investment mode change heating power, heating power be it is interrupted, segmentation has
Grade mode controls to adjust that precision is low, is not able to satisfy the temperature control requirement of high precision, high power CW voltage-regulating technique is high power
The key technology of electrically heated boiler.
Summary of the invention
Place in view of the above-mentioned deficiencies in the prior art, the invention proposes a kind of 10 kilovolts of thyristor controlled series compensation power
Regulating system, it is a kind of by continuous voltage regulating circuit continuous voltage regulating between grade its purpose is to provide, so that output voltage be made to connect
Continue smooth pressure regulation, the regulating system of the regulating effect of available very smooth.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of 10 kilovolts of thyristor controlled series compensation power regulating systems are that have grade to adjust with a set of continuous tune by the multistage of constant power grade
Volt circuit is constituted, and is a kind of high-tension high-power regulating circuit, directly takes electricity in the power grid of 10KV, completes what power was megawatt
Pressure regulation requirement；Specifically a voltage adjustment cabinet is added to form in vitro by multiple switch cabinet connecting and disconnecting segmentally heating；System point
Multiple branches, the corresponding one group of load calandria of each branch；Voltage-adjusting unit is connected respectively to needs and is connect by switches
Then the branch entered carries out voltage adjustment；After this branch has arrived total pressure output, voltage adjuster changing-over is to next
Road continues voltage adjustment；The appearances such as the capacity of six branches configuration, to realize output power from 0 to maximum value
It is seamless to continuously adjust.
The power grid of the 10KV is separately connected six tunnels by branch auto by pass switch ZK1-ZK6 and loads calandria JR1-
JR6, the one of thyristor valve SCRF drag one end of six reversing switch ZK1'-ZK6' to connect with branch auto by pass switch ZK1-ZK6,
It is connect after other end is in parallel with thyristor valve SCRF, the other end of thyristor valve SCRF is connect with SCRF switch ZKC, and SCRF is opened
The other end for closing ZKC is connect with 10KV net side power supply.
The six tunnels load calandria JR1-JR6 power is identical.
It is as follows that the regulating system increases power adjustment procedure: initial all killer switches disconnect, the switch of SCRF first
ZKC, one drag six reversing switch ZK1' to be closed, and thyristor valve SCRF is in off state；Then the thyristor valve SCRF angle of flow is opened
Begin to increase, the voltage loaded on calandria JR1 is gradually increased since 0；When thyristor valve SCRF is connected entirely, branch is automatically other
Way switch ZK1 closure, load calandria have obtained 1/6 power；Continuously smooth between from 0 to 1/6 is realized to adjust；One drags six
Reversing switch ZK1' is disconnected, and one drags six reversing switch ZK2' to be closed, and thyristor valve SCRF is gradually increased since off state to be led
Current flow angle, the voltage loaded on calandria JR2 are gradually increased since 0, and bearing power is gradually continuously enlarged to 2/6, immediately from 1/6
Branch auto by pass switch ZK2 closure；Investment process on the road of remaining and so on, to realize from zero to maximum, six
The power continuously smooth that branch is all turned on is adjusted.
The regulating system drop power adjustment procedure is as follows: assuming that original state is that two branches, branch has had been put into
Auto by pass switch ZK1, branch auto by pass switch ZK2 are closed；Thyristor valve SCRF first is in fully conducting state, so
Latter that six reversing switch ZK2' is dragged to be closed, and then branch auto by pass switch ZK2 is disconnected；The angle of flow of thyristor valve SCRF from
Standard-sized sheet is gradually reduced, and output power continuously becomes smaller, until thyristor valve SCRF ends；Drag six reversing switch ZK2' disconnected with latter
It opens, realizes continuously adjusting from 2/6 power to 1/6 power；Disconnection process of remaining branch and so on, to realize from most
Big to arrive minimum, the power continuously smooth that six branches are all turned on full cut-off is adjusted.
The present invention has the following advantages and beneficial effects:
The present invention has grade adjusting to constitute with a set of continuous voltage regulating circuit by the multistage of constant power grade, is a kind of high-tension high-power
Regulating circuit has structure simple, designs reasonable feature.Electricity can be directly taken in the power grid of 10KV, completing power is million
Watt pressure regulation requirement.By continuous voltage regulating circuit between grade continuous voltage regulating, to make output voltage continuously smooth pressure regulation, and can be with
Obtain the regulating effect of very smooth.
Detailed description of the invention
Understand for the ease of those of ordinary skill in the art and implement the present invention, with reference to the accompanying drawing and specific embodiment
The present invention is described in further detail, and the following examples are intended to illustrate the invention, it is to be understood that protection model of the invention
It encloses and is not limited by the specific implementation.
Fig. 1 is circuit connection block diagram of the present invention.
In figure: automatic citrcuit bearker ZKM, disconnecting switch GLK, branch auto by pass switch ZK1- ZK 6, thyristor valve
SCRF, one drags six reversing switch ZK1'-ZK6', SCRF switch ZKC, 10KV thyristor valve SCRF, loads calandria JR1-JR6.
Specific embodiment
The present invention is a kind of 10 kilovolts of thyristor controlled series compensation power regulating systems, as shown in Figure 1, Fig. 1 is that circuit of the present invention connects
Block diagram is connect, it is that a kind of high voltage is big that the present invention has grade adjusting to constitute with a set of continuous voltage regulating circuit by the multistage of constant power grade
Power regulation circuit, directly takes electricity in the power grid of 10KV, completes the pressure regulation requirement that power is megawatt.It is connected by multiple switch cabinet
Add a voltage adjustment cabinet composition in vitro with segmentally heating is disconnected.The multiple branches of system point, the corresponding one group of load of each branch add
Hot body.Voltage-adjusting unit is connected respectively to the branch for needing to access by switches, then carries out voltage adjustment.When this
After branch has arrived total pressure output, voltage adjuster changing-over to next branch continues voltage adjustment.Six branches
The configuration of the appearances such as capacity continuously adjusts in this way, realizing output power from 0 to seamless maximum value.
The present invention is to be separately connected six tunnels by branch auto by pass switch ZK1-ZK6 by the power grid of 10KV to load calandria
JR1-JR6, it is identical that six tunnels load calandria JR1-JR6 power.The one of thyristor valve SCRF drags six reversing switch ZK1'-ZK6''s
One end is connect with branch auto by pass switch ZK1-ZK6, is connect after other end is in parallel with thyristor valve SCRF, thyristor valve
The other end of SCRF is connect with SCRF switch ZKC, and the other end of SCRF switch ZKC is connect with 10KV net side power supply.
It is as follows that the present invention increases power adjustment procedure:
Initial all killer switches disconnect, and SCRF switch ZKC first, one drag six reversing switch ZK1' to be closed, thyristor valve
SCRF is in off state.Then the thyristor valve SCRF angle of flow starts to increase, and loads the voltage on calandria JR1 since 0
It is gradually increased.When thyristor valve SCRF is connected entirely, branch auto by pass switch ZK1 closure, load calandria has obtained 1/6
Power.Continuously smooth between from 0 to 1/6 is realized to adjust.One drags six reversing switch ZK1' to disconnect, and one drags six reversing switch ZK2'
Closure, thyristor valve SCRF are gradually increased the angle of flow since off state, load the voltage on calandria JR2 since 0 by
Cumulative big, bearing power is gradually continuously enlarged from 1/6 to 2/6, and and then branch auto by pass switch ZK2 is closed.The road of remaining
Investment process and so on, to realize from zero to maximum, the power continuously smooth that six branches are all turned on is adjusted.
It is as follows that power adjustment procedure drops in the present invention:
Assuming that original state is that two branches have had been put into, branch auto by pass switch ZK1, branch auto by pass switch ZK2
It is closed.Thyristor valve SCRF first is in fully conducting state, then one six reversing switch ZK2' is dragged to be closed, and then branch
Auto by pass switch ZK2 is disconnected.The angle of flow of thyristor valve SCRF is gradually reduced from standard-sized sheet, and output power continuously becomes smaller, until
Thyristor valve SCRF cut-off.It drags six reversing switch ZK2' to disconnect with latter, realizes the continuous tune from 2/6 power to 1/6 power
Section.Disconnection process of remaining branch and so on, to realize that six branches are all turned on full cut-off from minimum is up to
Power continuously smooth is adjusted.
Claims (5)
1. a kind of 10 kilovolts of thyristor controlled series compensation power regulating systems, it is characterized in that: thering is grade adjusting to match by the multistage of constant power grade
A set of continuous voltage regulating circuit is constituted, and is a kind of high-tension high-power regulating circuit, and electricity is directly taken in the power grid of 10KV, completes function
Rate be megawatt pressure regulation requirement；A voltage adjustment cabinet group is specifically added by multiple switch cabinet connecting and disconnecting segmentally heating in vitro
At；The multiple branches of system point, the corresponding one group of load calandria of each branch；Voltage-adjusting unit is connected respectively by switches
It is connected to the branch for needing to access, then carries out voltage adjustment；After this branch has arrived total pressure output, voltage adjuster changing-over
To next branch, continue voltage adjustment；The appearances such as the capacity of six branches configuration, to realize output power from 0 to most
Seamless between big value continuously adjusts.
2. a kind of 10 kilovolts of thyristor controlled series compensation power regulating systems according to claim 1, it is characterized in that: the 10KV
Power grid by branch auto by pass switch ZK1-ZK6 be separately connected six tunnels load calandria JR1-JR6, the one of thyristor valve SCRF
Drag one end of six reversing switch ZK1'-ZK6' to connect with branch auto by pass switch ZK1-ZK6, after other end is in parallel with brilliant lock
The other end of pipe valve SCRF connection, thyristor valve SCRF is connect with SCRF switch ZKC, the other end and 10KV of SCRF switch ZKC
The connection of net side power supply.
3. a kind of 10 kilovolts of thyristor controlled series compensation power regulating systems according to claim 2, it is characterized in that: six tunnel is negative
It is identical to carry calandria JR1-JR6 power.
4. a kind of 10 kilovolts of thyristor controlled series compensation power regulating systems according to claim 1, it is characterized in that: the adjusting is
It is as follows that system increases power adjustment procedure:
Initial all killer switches disconnect, and SCRF switch ZKC first, one drag six reversing switch ZK1' to be closed, thyristor valve
SCRF is in off state；Then the thyristor valve SCRF angle of flow starts to increase, and loads the voltage on calandria JR1 since 0
It is gradually increased；When thyristor valve SCRF is connected entirely, branch auto by pass switch ZK1 closure, load calandria has obtained 1/6
Power；Continuously smooth between from 0 to 1/6 is realized to adjust；One drags six reversing switch ZK1' to disconnect, and one drags six reversing switch ZK2'
Closure, thyristor valve SCRF are gradually increased the angle of flow since off state, load the voltage on calandria JR2 since 0 by
Cumulative big, bearing power is gradually continuously enlarged from 1/6 to 2/6, and and then branch auto by pass switch ZK2 is closed；The road of remaining
Investment process and so on, to realize from zero to maximum, the power continuously smooth that six branches are all turned on is adjusted.
5. a kind of 10 kilovolts of thyristor controlled series compensation power regulating systems according to claim 1, it is characterized in that: the adjusting is
System drop power adjustment procedure is as follows:
Assuming that original state is that two branches have had been put into, branch auto by pass switch ZK1, branch auto by pass switch ZK2
It is closed；Thyristor valve SCRF first is in fully conducting state, then one six reversing switch ZK2' is dragged to be closed, and then branch
Auto by pass switch ZK2 is disconnected；The angle of flow of thyristor valve SCRF is gradually reduced from standard-sized sheet, and output power continuously becomes smaller, until
Thyristor valve SCRF cut-off；It drags six reversing switch ZK2' to disconnect with latter, realizes the continuous tune from 2/6 power to 1/6 power
Section；Disconnection process of remaining branch and so on, to realize that six branches are all turned on full cut-off from minimum is up to
Power continuously smooth is adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811442437.5A CN109445511B (en) | 2018-11-29 | 2018-11-29 | 10 kilovolt thyristor valve group power regulating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811442437.5A CN109445511B (en) | 2018-11-29 | 2018-11-29 | 10 kilovolt thyristor valve group power regulating system |
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| CN109445511B CN109445511B (en) | 2024-03-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112965364A (en) * | 2021-02-08 | 2021-06-15 | 南京工业大学 | Modeling and iPID (induced draft identification) method for aerodynamic thermal ground simulation system of hypersonic aircraft |
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