CN101451892B - Temperature monitoring system and method for traction converter plant - Google Patents
Temperature monitoring system and method for traction converter plant Download PDFInfo
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- CN101451892B CN101451892B CN2009100766109A CN200910076610A CN101451892B CN 101451892 B CN101451892 B CN 101451892B CN 2009100766109 A CN2009100766109 A CN 2009100766109A CN 200910076610 A CN200910076610 A CN 200910076610A CN 101451892 B CN101451892 B CN 101451892B
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Abstract
The invention provides a temperature monitoring system and method for a pulling deflector. The pulling deflector comprises a pulse rectifier and inverter; the temperature monitoring system comprises the following steps: setting in the above pulse rectifier power module on the first temperature monitoring device, set in the above power inverter module of the second temperature monitoring device; temperature monitoring device described in the first and second temperature monitoring devices were described pulse rectifier according to the power module and the inverter power module heat different, have different pre-set temperature of the security value. The converter described in the use of traction devices and methods of temperature monitoring system can effectively change the flow of the traction of various electrical devices for temperature monitoring equipment to improve the operation of traction converter device reliability.
Description
Technical field
The present invention relates to vehicle towed converter plant technical field, particularly a kind of temperature monitoring system of traction converter plant and method.
Background technology
At present, along with the fast development of track traffic, various electric locomotives or diesel locomotive etc. generally adopt powerful traction converter plant, for example igbt (Insulate Gate BipolarTransistor, IGBT) traction convertor.
Traction converter plant generally is made of main circuit equipments such as pulsed rectifier, DC filtering circuit, inverter, vacuum A.C. contactor and control circuit equipment such as non-contact controlling device, control power supply, the said equipment all is assembled in the casing, to reduce occupation space after the device assembles.Though such equipment disposition can satisfy lightweight and compact conformation requirement, but during equipment operation, because the heat flux in the unit volume increases, make the equipment cooling problem more outstanding, therefore, traction converter plant needs cooling system to cool off with temperature monitoring system to carry out temperature monitoring usually.
In general; the temperature monitoring system of traction converter plant is the main heating part at traction converter plant; for example; temperature detection and control device are set on the power model of pulsed rectifier, the power model of inverter or on their heating radiator and set unified temperature safety value; when the actual temperature when equipment operation surpasses the safety value of setting; the main circuit of automatic cutout traction converter plant plays the effect of overheat protector, to guarantee the safety of equipment operation.
Yet, for present traction converter plant, the said temperature monitoring system can not be in full force and effect each electric equipment in the traction converter plant monitor, after the power model of pulsed rectifier was crossed cause thermal damage sometimes, the power model of inverter was normal; Secondly, too high and damage even the power model of the power model of pulsed rectifier and inverter, still has other electric equipment Yin Wendu by overheat protector, thus influence the reliability of traction converter plant.
Summary of the invention
The problem that the present invention solves provides a kind of temperature monitoring system and method for traction converter plant, can effectively carry out temperature monitoring to each electric equipment in the traction converter plant, improves the traction converter plant reliability of operation.
For addressing the above problem, the invention provides a kind of temperature monitoring system of traction converter plant, described traction converter plant comprises pulsed rectifier and inverter, described temperature monitoring system comprises:
Be arranged at first device for detecting temperature on the power model of described pulsed rectifier,
Be arranged at second device for detecting temperature on the power model of described inverter;
Described first device for detecting temperature and second device for detecting temperature according to the different heat amount of the power model of the power model of described pulsed rectifier and inverter, have different preset temperature safety values respectively.
Described first device for detecting temperature comprises: first temperature relay and described first temperature relay is fixed in the installing component of heating surface of the power model of pulsed rectifier.
Described second device for detecting temperature comprises: second temperature relay and described second temperature relay is fixed in the installing component of heating surface of the power model of inverter.
Described installing component comprises: packing ring, insulcrete and gib screw, described silicone rubber gasket between insulcrete and first temperature relay or second temperature relay, described gib screw be connected in the power model of the heating surface of power model of described pulsed rectifier or inverter heating surface, described insulcrete, packing ring and first temperature relay or second temperature relay are fixed.
Described traction converter plant also comprises resistance, sensor, the control box of the canyon of the installation side that is positioned at power model, and described temperature monitoring system also comprises the 3rd device for detecting temperature, and described the 3rd temperature-detecting device is positioned at described canyon.
Described the 3rd device for detecting temperature and first device for detecting temperature and/or second device for detecting temperature are connected in parallel.
The power model of described pulsed rectifier and the power model of inverter are provided with heating radiator, and then described first temperature relay or second temperature relay are fixedlyed connected with described heating radiator, and described heating surface is the radiating surface of described heating radiator.
Accordingly, the present invention also provides a kind of temperature monitoring method of traction converter plant, comprising:
Obtain the maximum temperature that each electric equipment normal running conditions is born down in the described traction converter plant respectively;
Described each maximum temperature is made as the temperature safety value of described each electric equipment correspondence respectively;
Monitor the actual temperature of described each electric equipment respectively;
Whether the actual temperature of judging described each electric equipment respectively arrives corresponding temperature safety value;
If then disconnect the main circuit of traction converter plant.
Described each electric equipment comprises: resistance, sensor, control box in pulsed rectifier, inverter and the canyon.
Compared with prior art, technique scheme has the following advantages:
Described temperature monitoring system and method; set different temperature safety values at the power model of pulsed rectifier and the power model of inverter; and temperature monitoring system of the prior art only has a unified temperature safety value; technique scheme is monitored the actual temperature of the power model of the power model of pulsed rectifier and inverter respectively; compare and judge according to the temperature safety value corresponding of actual temperature separately with it; when actual temperature is higher than corresponding temperature safety value; the main circuit that promptly disconnects traction converter plant carries out overheating protection; like this; can carry out overheating protection according to the different heat amount difference of different capacity module, thereby improve the reliability of equipment operation.
Description of drawings
Shown in accompanying drawing, above-mentioned and other purpose, feature and advantage of the present invention will be more clear.Reference numeral identical in whole accompanying drawings is indicated identical part.Painstakingly do not draw accompanying drawing, focus on illustrating purport of the present invention by physical size equal proportion convergent-divergent.
Fig. 1 is the inner cooling system synoptic diagram of traction converter plant among the embodiment one;
Fig. 2 is the temperature monitoring system and the external refrigeration system schematic of traction converter plant among the embodiment one;
Fig. 3 is the decomposition texture synoptic diagram of first device for detecting temperature described in the embodiment one;
Fig. 4 is the inner cooling system of traction converter plant among the embodiment two and the synoptic diagram of temperature monitoring system.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
Set forth a lot of details in the following description so that fully understand the present invention, implement but the present invention can also adopt other to be different from alternate manner described here, so the present invention has not been subjected to the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with synoptic diagram, when the embodiment of the invention is described in detail in detail; for ease of explanation; the sectional view of indication device structure can be disobeyed general ratio and be done local the amplification, and described synoptic diagram is example, and it should not limit the scope of protection of the invention at this.The three dimensions size that in actual fabrication, should comprise in addition, length, width and the degree of depth.
Be outstanding characteristics of the present invention, do not provide in the accompanying drawing and the inevitable directly related part of inventive point of the present invention, for example, the casing at traction converter plant place, locomotive car body, Intelligent Power Module or IGBT module, diode, buffer condenser, buffer resistance device, gate pole interface card, laminate bus or low-inductance bus, balancing resistor and filter capacitor etc.
At present, traction converter plant generally is made of main circuit equipments such as pulsed rectifier, DC filtering circuit, inverter, vacuum A.C. contactor and control circuit equipment such as non-contact controlling device, control power supply, the said equipment all is assembled in the casing, to reduce occupation space after the device assembles.Though such equipment disposition can satisfy lightweight and compact conformation requirement, but during equipment operation, because the heat flux in the unit volume increases, make the equipment cooling problem more outstanding, therefore, traction converter plant needs cooling system to cool off with temperature monitoring system to carry out temperature monitoring usually.
In general; the temperature monitoring system of traction converter plant is the main heating part at traction converter plant; for example; temperature detection and control device are set on the power model of pulsed rectifier, the power model of inverter or on their heating radiator and set unified temperature safety value; when the actual temperature when equipment operation surpasses the safety value of setting; the main circuit of automatic cutout traction converter plant plays the effect of overheat protector, to guarantee the safety of equipment operation.
Yet, for present traction converter plant, the said temperature monitoring system can not be in full force and effect each electric equipment in the traction converter plant monitor, after the power model of pulsed rectifier was crossed cause thermal damage sometimes, the power model of inverter was but still normal; Secondly, too high and damage even the power model of the power model of pulsed rectifier and inverter, still has other electric equipment Yin Wendu by overheat protector, thus influence the reliability of traction converter plant.
The inventor discovers, why sometimes after the power model of pulsed rectifier is crossed cause thermal damage, the power model of inverter is but still normal, be because each electric equipment thermal value difference of traction converter plant, and the temperature that its operate as normal is born is also different, but traditional temperature monitoring system is only all set identical temperature safety value to all electric equipments, therefore the electric equipment that causes has burnt out and the electric equipment that has does not also reach the temperature safety value, has influenced the reliability of traction converter plant.
Based on this, embodiments of the invention provide a kind of temperature monitoring system and method for traction converter plant, set separately temperature safety value respectively at the power model of the power model of pulsed rectifier and inverter, can effectively carry out temperature monitoring, improve the traction converter plant reliability of operation each electric equipment in the traction converter plant.
Describe an embodiment of temperature monitoring system of the present invention in detail below in conjunction with accompanying drawing.
Embodiment one
Fig. 1 is the inner cooling system synoptic diagram of traction converter plant in the present embodiment; Fig. 2 is the temperature monitoring system and the external refrigeration system schematic of traction converter plant in the present embodiment.
Described traction converter plant is arranged in the casing of a sealing, comprising:
Be positioned at the power cell of described casing central authorities, be positioned at the cold unit of described casing side, and the cooling system that comprises external refrigeration system and inner cooling system, also be useful on the temperature monitoring system that traction converter plant is carried out temperature monitoring.
Shown in seeing figures.1.and.2, described external refrigeration system is arranged near the described power cell, by carrying out heat interchange with the casing external world described power cell is dispelled the heat; Described inner cooling system, be arranged on described near the cold unit, by carrying out heat interchange to cold unit heat radiation in described with described external refrigeration system.
Described power cell comprises: pulsed rectifier power model and inverter power module, this part also is the main heating part of traction converter plant.
Wherein, described pulsed rectifier power model and inverter power module comprise: Intelligent Power Module (IPM, Intelligent Power Module) or IGBT module, diode, buffer condenser, buffer resistance device, gate pole interface card, laminate bus or low-inductance bus, balancing resistor and filter capacitor.
Interior cold unit comprises: resistance, sensor, control box.In described cold unit be meant in the traction converter plant, by the electric equipment of inner cold gas system cooling.
The configuration of the electric equipment of above-mentioned power cell and interior cold unit for example is: adopt single-phase voltage bikini pwm pulse rectifier and three-phase voltage bikini PWM inverter, comprise in the casing U phase, V phase pulsed rectifier power model and U mutually, V phase, W phase inverter power module; Pulsed rectifier power model and inverter power module are arranged on the central authorities of casing, so that the centralized configuration power-supply device; Resistance in the interior cold unit, sensor, control box etc. are dispersed in the ad-hoc location in the casing.Vacuum contactor, relay unit and non-contact controlling device etc. are disposed at the casing front side, check so that concentrate.
As shown in Figure 2, in the present embodiment, the temperature monitoring system of described traction converter plant comprises:
Be arranged at first device for detecting temperature on the power model of described pulsed rectifier,
Be arranged at second device for detecting temperature on the power model of described inverter;
Described first device for detecting temperature and second device for detecting temperature according to the different heat amount of the power model of the power model of described pulsed rectifier and inverter, have different preset temperature safety values respectively.
Exactly because the power model thermal value of the power model of the pulsed rectifier of traction converter plant and inverter is different, and the maximum temperature of being born during their operate as normal is also different, therefore can described maximum temperature respectively as separately temperature safety value.
Described first device for detecting temperature comprises: first temperature relay and described temperature relay is fixed in the installing component of heating surface of the power model of pulsed rectifier.
Described second device for detecting temperature comprises: second temperature relay and described temperature relay is fixed in the installing component of heating surface of the power model of inverter.
Described heating surface is the outside surface of the semiconductor components and devices of power model.Preferably, power model is provided with heating radiator, and then described heating surface is the radiating surface of described heating radiator.
Fig. 3 is the described first device for detecting temperature synoptic diagram, as shown in Figure 3, first device for detecting temperature comprises: first temperature relay and described temperature relay is fixed in the installing component of heating surface of the power model of pulsed rectifier, this heating surface is to the radiating surface of heating radiator (not shown), also the i.e. outside surface of evaporation part among the figure.
As shown in Figure 3, described installing component comprises: packing ring (for example silicone rubber gasket), insulcrete and gib screw, described packing ring between the insulcrete and first temperature relay, described gib screw be connected in the power model (not shown) of described pulsed rectifier heating surface (i.e. the outside surface of evaporation part among the figure), described insulcrete, packing ring and first temperature relay are fixed.
This first device for detecting temperature adopts airtight construction, does not need internal maintenance and inspection.In the time of need taking off first temperature relay for carrying out temperature safety value affirmation etc., can unload lower gasket and insulcrete, can make things convenient for greatly and install and operation by unclamping screw.
The The Nomenclature Composition and Structure of Complexes of described second device for detecting temperature and described first device for detecting temperature are similar, and difference is, the temperature safety value difference of overheating protection also promptly takes place the operating temperature difference of both temperature relays.
In the present embodiment, the temperature monitoring method of described traction convertor adopts described temperature monitoring system to carry out temperature monitoring, and this method comprises:
Obtain the following maximum temperature of being born of power model normal running conditions of the power model and the inverter of pulsed rectifier in the described traction converter plant respectively;
Described each maximum temperature is made as the temperature safety value of the power model correspondence of the power model of described pulsed rectifier and inverter respectively;
Monitor the actual temperature of the power model of the power model of described pulsed rectifier and inverter respectively;
Whether the actual temperature of judging the power model of the power model of described pulsed rectifier and inverter respectively arrives corresponding temperature safety value;
If then temperature relay disconnects the main circuit of traction converter plant.
Above-described temperature monitoring system and method; set different temperature safety values at the power model of pulsed rectifier and the power model of inverter; monitor the actual temperature of the power model of the power model of pulsed rectifier and inverter respectively; compare and judge according to the temperature safety value corresponding of actual temperature separately with it; when actual temperature is higher than corresponding temperature safety value; the main circuit that promptly disconnects traction converter plant carries out overheating protection, thereby improves the reliability of equipment operation.
Cooling system essence is to adopt air-cooled principle in the present embodiment.Have air inlet and air outlet on the described cabinet exterior, as shown in Figure 1,
Described inner cooling systemComprise: auxilliary fan blower, air channel and hot tube heat exchanger.Wherein,
Described auxilliary fan blower, be positioned at the upstream of described cold unit, be used for cold unit delivery air in described, described air-flow brings to the heat of interior cold unit the heating end of described hot tube heat exchanger, the car side of power model is provided with main blower, described main blower for example is the bilobed wheel electric blower, blows to power model.
Described air channel is communicated with the heating end and the auxilliary fan blower of described heat-pipe radiator, is used for the air-flow of the heating end of the described hot tube heat exchanger of flowing through is carried back auxilliary fan blower.
Described hot tube heat exchanger, its heating end is positioned at the downstream of described cold unit, and its radiating end is arranged in described external refrigeration system.
As shown in Figure 2,
Described external refrigeration systemComprise: part flow arrangement, main blower and air exhaust passage.Wherein,
Described part flow arrangement is positioned at the air inlet downstream, is used for airflow diversion that air inlet is entered radiating end and the main blower to described hot tube heat exchanger,
Described main blower is positioned at described power cell upstream, is used for to described power cell input air-flow,
Described air exhaust passage is positioned at the downstream of described power cell, is used for the air-flow of the described power cell of flowing through is delivered to exhaust outlet.
So-called upstream, downstream are the flow directions of time air-supply air-flow of working according to cooling system.
Introduce the principle of work of cooling system in the above-mentioned traction converter plant below.
Described cooling system is divided into inner cooling system and the two large divisions of external refrigeration system, and the former is mainly so-called interior cold unit cooling such as resistance, sensor, control box, cooling, and the latter is mainly power cell cooling, cooling.The external world of external refrigeration system and casing directly carries out heat interchange, and this two big cooling system of inner cooling system and external refrigeration system carries out heat interchange by hot tube heat exchanger.Fig. 1 and Fig. 2 illustrate described inner cooling system and external refrigeration system respectively.
In inner cooling system, in the resistance of auxilliary fan blower in being dispersed in confined chamber, sensor, control box etc. are so-called dry in cold unit, air-flow makes heat be reached the heating end of hot tube heat exchanger, reaches radiating end again by heating end, and is taken away by the external refrigeration system; Independently will the flow through air-flow of heating end of described hot tube heat exchanger of air channel is carried back auxilliary fan blower, cold unit in being blowed to by auxilliary fan blower round-robin then.Air in inner cooling system is recycled, and does not have the outer air-flow of casing to enter, and has so just significantly reduced the dust stratification in the casing, also can effectively heat be taken away.
Externally in the cooling system, the air that is entered in the casing by air inlet is divided into two parts by the part flow arrangement in downstream, and a part flows to the radiating end of hot tube heat exchanger, takes away the heat in the inner cooling system, and then enters main blower; Another part air then directly enters main blower, blows to main heating part power cell by main blower, for example is pulsed rectifier power model and inverter power module, takes the heat of power cell out of casing by air outlet.
As seen, above-mentioned traction converter plant passes through allocating power unit and the interior cold unit position in casing on the whole, dispel the heat by internal respectively cold unit of inner cooling system and external refrigeration system and power cell, and the outer air of casing that do not have in the inner cooling system flows into, only carry out heat interchange to cold unit heat radiation in described with the external refrigeration system, the external refrigeration system directly dispels the heat to power cell, so, no matter to the power cell of concentrating relatively is set, the resistance of relative dispersion still is set, sensor, cold unit in control box etc. are so-called, can dispel the heat on the whole, the temperature rise of control apparatus equipment, and, owing to do not have entering of outside air in the inner cooling system, can avoid the problem of dirt accumulation, thereby improve the traction converter plant reliability of operation.
Preferably, described air inlet place also has air strainer, and outside air earlier enters part flow arrangement again through behind the air strainer, and air strainer stays on the filtrator dust in air and impurity to purify air, and further prevents gathering of dust in the casing.
Preferably, described external refrigeration system also comprises the heating radiator that is connected with the heating part of described power cell, is used for to described power cell heating part release heat.The heating part of described power cell is pulsed rectifier power model and inverter power module, for example, Intelligent Power Module or IGBT module, diode, buffer condenser, buffer resistance device, gate pole interface card, laminate bus or low-inductance bus, balancing resistor and filter capacitor etc.Heating radiator can make the heat of heating part fully discharge, so that taken away by air-flow, improves radiating efficiency.
Described heating radiator can be heat pipe cooling device, and is preferred, and described heating radiator adopts fluidization cooler (or temperature-uniforming plate).This fluidization cooler adopts the enhance heat mode of the direct contact element of memory control cold containers outer wall, can effectively improve IPM (or IGBT) and disconnect performance (reducing main circuit distribution inductance), the intensifier cooling performance, reduces volume, reduces weight.The direct contact element of evaporation part outside wall surface, the element heat transferred that outside wall surface absorbs is used for internal refrigeration storage agent boiling behind internal face, and the steam that boiling produces is directly oriented to the condensation part of the heat radiator composition of One's name is legion.Steam is emitted the latent heat of vaporization and liquefaction, flows back to the evaporation part under action of gravity.Above-mentioned circulation can realize being higher than the cooling performance of several times of heat pipe cooling devices, thereby effectively reduces quality.In the described fluidization cooler, cold-producing medium is selected the replacement fluorine Leon for use, belongs to the non-Freon series coolant, and is both efficient, can avoid environment damage again.
In the foregoing description, vacuum contactor, relay unit and non-contact controlling device etc. are positioned at the check surface side of casing, in fact cold unit in they also can be used as, dispelled the heat by inner cooling system, also promptly interior cold unit also comprises: vacuum contactor, relay unit and non-contact controlling device.Though above-mentioned electric equipment is scattered in different position, casing side, all can be, independently the inner cooling system formed of air channel and hot tube heat exchanger dispels the heat by auxilliary fan blower, its radiating principle is identical with embodiment one, does not repeat them here.
Be connected in parallel device for detecting temperature in the canyon of the device for detecting temperature of pulsed rectifier and inverter, can further improve reliability, specifically in following examples, illustrate.
Embodiment two
Fig. 4 is the inner cooling system of traction converter plant in the present embodiment and the synoptic diagram of temperature monitoring system.
As shown in Figure 4, for present traction converter plant, its heating part not only has the power model of pulsed rectifier and the power model of inverter, and electric equipment in addition, for example resistance, sensor, control box, vacuum contactor, relay unit and non-contact controlling device (not shown) etc. also can be sent bigger heat, and auxiliary blower cools off resistance, sensor, control box etc.
For preventing that described auxiliary blower fault from causing that the interior temperature of confined chamber (canyon) of the semiconductor element mounting side of power model rises, thereby cause the electric equipment misoperation, the 3rd device for detecting temperature can be set, thereby further improve the reliability of traction converter plant.
As shown in Figure 4, the difference of present embodiment and embodiment one is, described traction converter plant also comprises (being the installation side of semiconductor element) resistance, sensor, the control box of the canyon that is positioned at described power model installation side, then temperature monitoring system described in the present embodiment also comprises the 3rd device for detecting temperature, and described the 3rd device for detecting temperature is positioned at described canyon.
The The Nomenclature Composition and Structure of Complexes of first, second device for detecting temperature among described the 3rd device for detecting temperature and the embodiment one is identical; comprise that second temperature relay and the installing component difference that described second temperature relay is fixing are; the temperature safety value difference of overheating protection also promptly takes place in the operating temperature difference of temperature relay.
The thermal value of the electric equipment in the temperature safety value of the 3rd device for detecting temperature and the described canyon is relevant.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.
Though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention.Any those of ordinary skill in the art, do not breaking away under the technical solution of the present invention scope situation, all can utilize the method and the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, all still belongs in the scope of technical solution of the present invention protection any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (10)
1. the temperature monitoring system of a traction converter plant, described traction converter plant comprises pulsed rectifier and inverter, it is characterized in that, described temperature monitoring system comprises:
Be arranged at first device for detecting temperature on the power model of described pulsed rectifier,
Be arranged at second device for detecting temperature on the power model of described inverter;
Described first device for detecting temperature and second device for detecting temperature according to the different heat amount of the power model of the power model of described pulsed rectifier and inverter, have different preset temperature safety values respectively.
2. the temperature monitoring system of traction converter plant according to claim 1, it is characterized in that described first device for detecting temperature comprises: first temperature relay and described first temperature relay is fixed in the installing component of heating surface of the power model of pulsed rectifier.
3. the temperature monitoring system of traction converter plant according to claim 1, it is characterized in that described second device for detecting temperature comprises: second temperature relay and described second temperature relay is fixed in the installing component of heating surface of the power model of inverter.
4. the temperature monitoring system of traction converter plant according to claim 2, it is characterized in that, described installing component comprises: packing ring, insulcrete and gib screw, described packing ring between the insulcrete and first temperature relay, described gib screw be connected in the power model of described pulsed rectifier heating surface, described insulcrete, packing ring and first temperature relay are fixed.
5. the temperature monitoring system of traction converter plant according to claim 3, it is characterized in that, described installing component comprises: packing ring, insulcrete and gib screw, described packing ring between the insulcrete and second temperature relay, described gib screw be connected in the power model of described inverter heating surface, described insulcrete, packing ring and second temperature relay are fixed.
6. the temperature monitoring system of traction converter plant according to claim 1, it is characterized in that, described traction converter plant also comprises resistance, sensor, the control box of the canyon of the installation side that is positioned at power model, described temperature monitoring system also comprises the 3rd device for detecting temperature, and described the 3rd temperature-detecting device is positioned at described canyon.
7. the temperature monitoring system of traction converter plant according to claim 6 is characterized in that, described the 3rd device for detecting temperature and first device for detecting temperature and/or second device for detecting temperature are connected in parallel.
8. the temperature monitoring system of traction converter plant according to claim 2, it is characterized in that, the power model of described pulsed rectifier is provided with heating radiator, and then described first temperature relay is fixedlyed connected with described heating radiator, and described heating surface is the radiating surface of described heating radiator.
9. the temperature monitoring system of traction converter plant according to claim 3, it is characterized in that, the power model of described inverter is provided with heating radiator, and then described second temperature relay is fixedlyed connected with described heating radiator, and described heating surface is the radiating surface of described heating radiator.
10. the temperature monitoring method of a traction converter plant is characterized in that, comprising:
Obtain the following maximum temperature of being born of power model normal running conditions of the power model and the inverter of pulsed rectifier in the described traction converter plant respectively;
Described each maximum temperature is made as the temperature safety value of the power model correspondence of the power model of described pulsed rectifier and inverter respectively;
Monitor the actual temperature of the power model of the power model of described pulsed rectifier and inverter respectively;
Whether the actual temperature of judging the power model of the power model of described pulsed rectifier and inverter respectively arrives corresponding temperature safety value;
If then disconnect the main circuit of traction converter plant.
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| CN110768512B (en) * | 2019-10-28 | 2022-09-30 | 常州工学院 | Temperature online monitoring system of modular multilevel converter |
| CN114132349B (en) * | 2021-11-26 | 2023-04-14 | 株洲中车时代电气股份有限公司 | Converter cooling system, maintenance method, maintenance device and converter |
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| CN2597971Y (en) * | 2003-01-30 | 2004-01-07 | 费万民 | On line detector for high-voltage switch bus temp. |
| US7312593B1 (en) * | 2006-08-21 | 2007-12-25 | Rockwell Automation Technologies, Inc. | Thermal regulation of AC drive |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2597971Y (en) * | 2003-01-30 | 2004-01-07 | 费万民 | On line detector for high-voltage switch bus temp. |
| US7312593B1 (en) * | 2006-08-21 | 2007-12-25 | Rockwell Automation Technologies, Inc. | Thermal regulation of AC drive |
Non-Patent Citations (1)
| Title |
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| JP特开平7-245965A 1995.09.19 |
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