CN105512398B - Hot road analogy method and the hot road analogy method of converter valve components for using this method - Google Patents
Hot road analogy method and the hot road analogy method of converter valve components for using this method Download PDFInfo
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- CN105512398B CN105512398B CN201510903460.XA CN201510903460A CN105512398B CN 105512398 B CN105512398 B CN 105512398B CN 201510903460 A CN201510903460 A CN 201510903460A CN 105512398 B CN105512398 B CN 105512398B
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004088 simulation Methods 0.000 claims abstract description 44
- 230000017525 heat dissipation Effects 0.000 claims abstract description 27
- 238000013016 damping Methods 0.000 claims description 36
- 239000000498 cooling water Substances 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 239000000306 component Substances 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 206010039509 Scab Diseases 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
- G06F30/367—Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods
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- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The present invention provides a kind of hot road analogy method and the hot road analogy method of converter valve components using this method, hot road analogy method includes: 1) to establish the corresponding relationship of physical quantity in the physical quantity in hot road and circuit: temperature corresponding voltage, heat flow corresponding current, thermal resistance correspond to resistance；2) according to above-mentioned corresponding relationship, the thermal circuit model to analog machine is established using circuit model, comprising: according to the radiating mode to analog machine, establish the integral heat sink model to analog machine；According to the heat dissipation characteristics to each element relevant to heat dissipation in analog machine or unit, the thermal circuit model of each element or unit.The present invention establishes valve module thermal circuit model using circuit model to carry out hot road simulation, provides a kind of brand-new thinking for the simulation of hot road.
Description
Technical field
The present invention relates to a kind of hot road analogy methods, the especially hot road analogy method of direct-current transmission converter valve component, belong to
Heat dissipation design field in high voltage dc transmission technology.
Background technique
D.C. high voltage transmission (HVDC) converter valve is mainly formed using Thyristors in series form at present, and core component is brilliant
For brake tube as a kind of power semiconductor, working condition is intimately tied to the temperature of its chip (silicon), i.e. junction temperature.When junction temperature liter
Gao Shi, the dielectric properties of silicon weaken, carrier lifetime increases, fatigue resistance reduces, and correspondingly show in HVDC converter valve
It is reduced for voltage endurance capability, reverse recovery charge increases, the enhancing of Reverse recovery overshoot, service life reduction.In short, direct current transportation is changed
The junction temperature of stream valve thyristor had not only influenced the operational reliability of direct-current transmission converter valve, but also influenced its service life.
In thyristor operational process, the temperature rise of thyristor chip is mainly caused by the loss that chip itself work generates.
Therefore, generally loss is taken away equipped with special water-cooled radiator in HVDC thyristor valve, is reliably being worked with controlling junction temperature
Within range, as steady-state operation junction temperature is limited in 90 DEG C or less.Control stable state junction temperature, which relies primarily on, to be improved radiating efficiency, reduces crystalline substance
The thermal resistance and the thermal contact resistance between them of brake tube itself and radiator.
To sum up, it needs to calculate the junction temperature of thyristor in thyristor water-cooling radiator design and design of Cooling System
And prediction, currently used method mainly have test method(s), calculating method and finite element simulation.The main problem of test method(s) is thyristor
The measurement of junction temperature, it is general by measurement thyristor shell temperature, thyristor junction temperature, experimental enviroment and survey are calculated further according to heat transfer theory
The selection of warm spot is affected to result.The main problem of currently used calculating method is to calculate single thyristor and radiator,
The influence that valve module radiator structure and water route calculate thyristor junction temperature is not accounted for.The advantages of finite element simulation method is can be with
The Temperature Distribution cloud atlas of valve module, visual result are obtained, but its model is complicated, parameter obtains difficulty, and simulation result exists not
Certainty.
Summary of the invention
The present invention provides a kind of hot road analogy method and using the hot road analogy method of converter valve components of this method, it is used for
Thyristor junction temperature calculates when steady-state operation and the valve module thermal circuit model of emulation, solution prior art modeling complexity, parameter obtain
Difficult problem.
The purpose of the present invention is what is realized using following proposal:
A kind of hot road analogy method, includes the following steps:
1) corresponding relationship of physical quantity in the physical quantity in hot road and circuit: temperature corresponding voltage is established, heat flow is corresponding
Electric current, thermal resistance correspond to resistance；
2) according to above-mentioned corresponding relationship, the thermal circuit model to analog machine is established using circuit model, comprising: according to
The radiating mode of analog machine establishes the integral heat sink model to analog machine；According to relevant to heat dissipation in analog machine
The heat dissipation characteristics of each element or unit establish the thermal circuit model of each element or unit.
The corresponding relationship of physical quantity in physical quantity and circuit in hot road further include: thermal capacitance corresponds to capacitor.
The present invention establishes valve module thermal circuit model using circuit model to carry out hot road simulation, provides for the simulation of hot road
A kind of brand-new thinking, and in this way can be directly by existing circuit simulation software (such as PSPICE simulation software), no
With other special-purpose softwares of redesign.
The present invention also provides a kind of hot road analogy methods of converter valve components, include the following steps:
1) corresponding relationship of physical quantity in the physical quantity in hot road and circuit: temperature corresponding voltage is established, heat flow is corresponding
Electric current, thermal resistance correspond to resistance；
2) according to above-mentioned corresponding relationship, the thermal circuit model of valve module: valve module thermal circuit model is established using circuit model
It is composed in series by the hot road of thyristor, the hot road of water-cooled radiator and the hot road of damping resistance；The hot Router Simulation thyristor heat dissipation of thyristor
The current source of amount and the resistance composition of simulation thyristor thermal resistance；The voltage of the hot Router Simulation radiator inlet temperature of water-cooled radiator
The resistance in source, the current-controlled voltage source of radiator cooling water temperature rise and analog radiator thermal resistance forms；The routing of damping resistance heat
Simulate the current source of damping resistance heat dissipation capacity and the resistance composition of simulation damping resistance thermal resistance.
The thyristor of two-side radiation, symmetrical configuration, the current source of the hot Router Simulation thyristor heat dissipation capacity of thyristor and two
The resistance for simulating thyristor crust thermal resistance forms T-type structure: current source anode and two resistance one end link together, current source
Cathode ground connection, the two resistance other ends are respectively used to the connection hot road of thyristor and output and input.
The hot road of water-cooled radiator is divided into left half radiator and right half radiator, left half radiator and right half radiator into
Coolant-temperature gage is identical；The electricity of the voltage source of each hot Router Simulation radiator inlet temperature of half radiator, radiator cooling water temperature rise
Current-controlled voltage source and the resistance of analog radiator thermal resistance composition: voltage source, current-controlled voltage source series connection, the anode of formation is even
The input of half radiator, cathode ground connection are connect, resistance one end connects the input of half radiator, and the other end connects the output of half radiator.
The current source of the hot Router Simulation damping resistance heat dissipation capacity of damping resistance and the resistance of simulation damping resistance thermal resistance
Composition: current source anode connects thermal circuit model input, cathode ground connection, resistance one end connection damping electricity of simulation damping resistance thermal resistance
The input of thermal resistance road, the other end connect the hot road output of damping resistance.
It is lost using thermal circuit model provided by the invention according to thyristor loss, damping circuit in the Design of Thyristor stage
And thyristor junction temperature limit value, the requirement to water-cooled radiator thermal resistance is proposed by calculation or simulation.In the operation phase, this is utilized
The thermal circuit model provided is provided, thyristor junction temperature can be predicted.
Compared to limited element analysis technique, modeling of the invention is simple.Compared to calculating method, valve module Re Lumo provided by the invention
Thyristor is placed among valve module by type, it is contemplated that the influence that valve module radiator structure and water route calculate thyristor junction temperature.
Detailed description of the invention
Fig. 1 is converter valve components thermal circuit model；Wherein: Rd --- water-cooled radiator to damping resistance thermal resistance
Rs --- water-cooled radiator is to thyristor shell thermal resistance
Rjc --- thyristor crust thermal resistance
PR --- current source, damping resistance heat dissipation capacity
Pth --- current source, thyristor heat dissipation capacity
T0 --- voltage source, component cold in-water temperature (the 1st water-cooled radiator inflow temperature)
TiL --- Voltage Control Voltage Source, the left half radiator inlet temperature (i=2,3 ... ...) of i-th of water-cooled radiator
TiR --- Voltage Control Voltage Source, the right half radiator inlet temperature (i=2,3 ... ...) of i-th of water-cooled radiator
△ tiL --- current-controlled voltage source, the left half radiator cooling water temperature rise of i-th of water-cooled radiator (i=1,2,
3 ... ...)
△ tiR --- current-controlled voltage source, the right half radiator cooling water temperature rise of i-th of water-cooled radiator (i=1,2,
3 ... ...)
It is thyristor, C be right half radiator, D is damping resistance that A, which is left half radiator, B,；
Fig. 2 is the simulation model that converter valve components thermal circuit model is established under PSPICE simulation software.
Specific embodiment
The present invention utilizes the similitude of Re Lu and circuit, establishes the corresponding pass of the physical quantity in hot road with physical quantity in circuit
System, establishes valve module thermal circuit model, using circuit model to carry out hot road simulation.Above-mentioned corresponding relationship is as shown in the table:
Temperature corresponding voltage, heat flow corresponding current, analogous circuit, thermal resistance are equivalent to the obstruction played to the conduction of temperature
Effect, is indicated with the ratio between temperature and heat flow.
Method of the invention is applied to below in the heat dissipation design of direct-current transmission converter valve component, in conjunction with attached drawing 1, attached drawing
2, the present invention is further described.
For direct-current transmission converter valve component, first according to the radiating mode of valve module, the overall thermal road of valve module is established
Model configuration, i.e. valve module thermal circuit model；Then the hot road of each element relevant to heat dissipation or unit in valve module is resettled
Model configuration, i.e., the thermal circuit model of each element or unit.It is of course also possible to initially set up element or unit thermal circuit model, then build
Vertical overall model.
Valve module thermal circuit model is composed in series by the hot road of several thyristors, the hot road of water-cooled radiator and the hot road of damping resistance.
The current source of the hot Router Simulation thyristor heat dissipation capacity of thyristor and the resistance composition of simulation thyristor thermal resistance, for double
Face heat dissipation, the thyristor of symmetrical configuration, the current source of the hot Router Simulation thyristor heat dissipation capacity of thyristor and two simulation thyristors
The resistance for the thermal resistance that crusts is constituted.
The hot road of water-cooled radiator is divided into two parts, first is that left half radiator, first is that right half radiator, the routing of half radiator heat
The electric current of the voltage source (voltage source also includes Voltage Control Voltage Source) of analog radiator inflow temperature, radiator cooling water temperature rise
Control the resistance composition of voltage source and analog radiator thermal resistance.Left half radiator is identical with right half radiator inlet temperature.
The current source of the hot Router Simulation damping resistance heat dissipation capacity of damping resistance and the resistance composition of simulation damping resistance thermal resistance.
If Fig. 1 is by taking the hot road of the valve module that three-level Thyristors in series forms as an example, valve module water route is series connection.Water route series winding
The valve module thermal circuit model of three-level Thyristors in series composition includes: the hot road of thyristor, the hot road of water-cooled radiator and damping resistance heat
Road.It shares 3 thyristors and 4 radiator tandems crimps, damping resistance is inserted into water-cooled radiator.
The current source P of the hot Router Simulation thyristor heat dissipation capacity of thyristor and the resistance Rjc composition of simulation thyristor thermal resistance, it is right
In two-side radiation, the thyristor of symmetrical configuration, the current source P of the hot Router Simulation thyristor heat dissipation capacity of thyristor and two simulations are brilliant
The resistance Rjc of brake tube crust thermal resistance constitutes T-type structure: current source P anode and two one end resistance Rjc link together, electric current
Source cathode ground connection, the two resistance Rjc other ends are respectively used to the connection hot road of thyristor and output and input.J indicates thyristor number.
The hot road of water-cooled radiator is divided into two parts, first is that left half radiator, first is that right half radiator, half radiator heat
The electric current control of voltage source (or Voltage Control Voltage Source) tiL, radiator cooling water temperature rise of Router Simulation radiator inlet temperature
The voltage source △ tiL processed and resistance Rs of analog radiator thermal resistance composition, left half radiator are identical with right half radiator inlet temperature.
I indicates that radiator number, radiator number are followed successively by 1,2 since the left side in above-mentioned tiL and △ tiL ..., and L indicates that left half dissipates
Hot device, R indicate right half radiator.
Voltage source tiL, current-controlled voltage source △ tiL series connection, the positive link model input of formation, cathode ground connection, electricity
The hot road input of the one end Rs connection radiator is hindered, the Rs other end connects the hot road output of radiator.
The current source PR of the hot Router Simulation damping resistance heat dissipation capacity of the damping resistance and resistance Rd of simulation damping resistance thermal resistance
Composition: current source PR anode connects the hot road input of damping resistance, and cathode ground connection, it is defeated that the one end resistance Rd connects the hot road of damping resistance
Enter, the Rd other end connects the hot road output of damping resistance.
Attached drawing 2 is the simulation model that the present embodiment is established in PSPICE.
Cooling water is entered by #1 radiator, is flowed out by #2 radiator, does not consider heat dissipation of the cooling water along water pipe, #1 radiator
Leaving water temperature is #3 radiator inlet temperature, and #3 radiator outlet temperature is that #4 radiator enters coolant-temperature gage, #4 radiator outlet temperature
Degree is that #2 radiator enters coolant-temperature gage.Its inflow temperature is simulated with constant pressure source for #1 radiator, other voltage-controlled systems of radiator electricity consumption
Voltage source simulates its inflow temperature, with cooling water temperature rise in current-controlled voltage source analog radiator.
It is a specific embodiment of the invention above, thinking of the invention is the similitude using Re Lu and circuit, builds
The corresponding relationship of physical quantity in physical quantity and circuit in Li Relu, to establish valve module Re Lumo using circuit model
Type, to carry out hot road simulation.In addition to the direct-current transmission converter valve being applied in above-described embodiment, additionally it is possible to be led for other electric power
The device or equipment of domain or other field.Moreover, the enlightenment provided according to above embodiments, those skilled in the art can also be
When designing the thermal circuit model of specific element or unit, by the way of unlike the embodiments above, such as ignore it is certain because
Corresponding simplified model when plain.
Under the thinking that the present invention provides, to above-mentioned implementation by the way of being readily apparent that those skilled in the art
Technological means in example is converted, is replaced, is modified, and is played the role of and the basic phase of relevant art means in the present invention
Goal of the invention that is same, realizing is also essentially identical, and the technical solution formed in this way is to be finely adjusted to be formed to above-described embodiment, this
Kind technical solution is still fallen in protection scope of the present invention.
Claims (6)
1. a kind of hot road analogy method, characterized by the following steps:
1) corresponding relationship of physical quantity in the physical quantity in hot road and circuit: temperature corresponding voltage is established, heat flow corresponding current,
Thermal resistance corresponds to resistance；
2) according to above-mentioned corresponding relationship, the thermal circuit model to analog machine is established using circuit model, comprising: according to wait simulate
The radiating mode of equipment establishes the integral heat sink model to analog machine；According to relevant each to heat dissipation in analog machine
The heat dissipation characteristics of element or unit establish the thermal circuit model of each element or unit.
2. hot road analogy method according to claim 1, which is characterized in that physical quantity in the physical quantity and circuit in hot road
Corresponding relationship further include: thermal capacitance corresponds to capacitor.
3. a kind of hot road analogy method of converter valve components, which comprises the steps of:
1) corresponding relationship of physical quantity in the physical quantity in hot road and circuit: temperature corresponding voltage is established, heat flow corresponding current,
Thermal resistance corresponds to resistance；
2) according to above-mentioned corresponding relationship, the thermal circuit model of valve module is established using circuit model: valve module thermal circuit model is by crystalline substance
The hot road of brake tube, the hot road of water-cooled radiator and the hot road of damping resistance are composed in series；The hot Router Simulation thyristor heat dissipation capacity of thyristor
The resistance composition of current source and simulation thyristor thermal resistance；The voltage source of the hot Router Simulation radiator inlet temperature of water-cooled radiator,
The current-controlled voltage source of radiator cooling water temperature rise and the resistance composition of analog radiator thermal resistance；The hot Router Simulation of damping resistance
The current source of damping resistance heat dissipation capacity and the resistance composition of simulation damping resistance thermal resistance.
4. according to the hot road analogy method of converter valve components described in right 3, which is characterized in that the crystalline substance of two-side radiation, symmetrical configuration
The resistance of brake tube, the current source of the hot Router Simulation thyristor heat dissipation capacity of thyristor and two simulation thyristor crust thermal resistances forms T
Type structure: current source anode and two resistance one end link together, and current source negative pole ground connection, the two resistance other ends are respectively used to
The connection hot road of thyristor is output and input.
5. according to the hot road analogy method of converter valve components described in right 3, which is characterized in that the hot road of water-cooled radiator is divided into
Left half radiator and right half radiator, left half radiator are identical with right half radiator inlet temperature；Each half radiator heat routing
The voltage source of analog radiator inflow temperature, the current-controlled voltage source of radiator cooling water temperature rise and analog radiator thermal resistance
Resistance composition: voltage source, current-controlled voltage source series connection, the anode connection half radiator input of formation, cathode ground connection, resistance one
End connection half radiator input, the other end connect the output of half radiator.
6. according to the hot road analogy method of converter valve components described in right 3, which is characterized in that the hot Router Simulation of damping resistance
The resistance composition of the current source of damping resistance heat dissipation capacity and simulation damping resistance thermal resistance: it is defeated that current source anode connects thermal circuit model
Enter, cathode ground connection, the hot road input of resistance one end connection damping resistance of simulation damping resistance thermal resistance, the other end connects damping resistance
Hot road output.
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| CN106950851B (en) * | 2017-03-15 | 2020-12-04 | 平高集团有限公司 | Thyristor simulation device and thyristor semi-physical simulation platform |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103324215A (en) * | 2013-05-17 | 2013-09-25 | 郑州华力信息技术有限公司 | Method for setting up thermal circuit model used for transformer load intelligent management system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103324215A (en) * | 2013-05-17 | 2013-09-25 | 郑州华力信息技术有限公司 | Method for setting up thermal circuit model used for transformer load intelligent management system |
Non-Patent Citations (2)
| Title |
|---|
| 有内热源时稳定导热的电模拟计算;黄晓齐;《贵州工业大学学报:自然科学版》;19841231;第1-13页 * |
| 集成电路热模拟模型和算法;叶铭，等;《浙江大学学报》;19870131;第21卷(第1期);第1-7页 * |
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