CN201629680U - Locomotive variable-frequency air-conditioning power supply device - Google Patents
Locomotive variable-frequency air-conditioning power supply device Download PDFInfo
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- CN201629680U CN201629680U CN2010201193916U CN201020119391U CN201629680U CN 201629680 U CN201629680 U CN 201629680U CN 2010201193916 U CN2010201193916 U CN 2010201193916U CN 201020119391 U CN201020119391 U CN 201020119391U CN 201629680 U CN201629680 U CN 201629680U
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Abstract
The utility model relates to a locomotive variable-frequency air-conditioning power supply device, which comprises an input compensation circuit, a BOOST booster circuit, a BOOST booster control system, a variable-frequency output circuit and a microcomputer variable-frequency control and protection system. The power supply device is characterized in that a positive electrode and a negative electrode of an external power supply are connected with the input compensation circuit to form a loop; the input compensation circuit is connected with the BOOST booster control system and the BOOST booster circuit to form a loop; the input compensation circuit is connected with the microcomputer variable-frequency control and protection system, the variable-frequency output circuit and the BOOST booster circuit to form a loop; the output of the variable-frequency output circuit supplies power for air-conditioning units; and the BOOST booster control system is connected with the microcomputer variable-frequency control and protection system. The power supply device greatly improves safety and reliability of the power supply, particularly has the advantages of small volume, light weight and the like, not only is convenient to be installed and carried, but also saves precious space for the inside of a locomotive, and enables maintenance to be extremely convenient.
Description
Technical field
The locomotive convertible frequency air-conditioner supply unit of a kind of railway of the utility model.
Background technology
Modern air handling system, the degree of its superior performance depends on power supply and the automatic control device that energy is provided for it.Railway locomotive convertible frequency air-conditioner power supply (being called for short " air-conditioning power supply "), should reach the required every performance requirement that possesses of locomotive convertible frequency air-conditioner unit (being called for short " air-conditioning unit ") rule operation, the unfavorable factor that the bad working environments environment is brought in the time of also will overcoming locomotive operation simultaneously.
1, the air-conditioning power supply is the device that electric energy and controlled function are provided for the air-conditioning unit.The air-conditioning unit is installed in the locomotive cab top, air-conditioning unit ambient temperature can reach 35～40 ℃ Celsius when summer was hot, the air-conditioning power-supply ambient temperature can reach 60～70 ℃ Celsius, and the condenser of air-conditioning unit can be by greasy dirt, contamination by dust, thereby causes radiating efficiency further to reduce.
2, the air-conditioning power supply is installed in the locomotive.During locomotive operation, work condition environment shows as that vibration is big, strong, the high hot high temperature of electromagnetic interference, supply power voltage does not match and extremely unstable, and momentary power failure phenomenon is very frequent etc. simultaneously.
Summary of the invention
The purpose of this utility model through exploratory development and road performance test, is released a kind of novel locomotive convertible frequency air-conditioner supply unit at the special operation condition requirement of above two aspects, and this device can effectively prevent vibration; Prevent high temperature wearing out to electronic component; Anti-electromagnetic interference; And the shutdown period that can handle momentary power failure automatically and caused.Because this device has adopted multiple integrated circuit, the digital module of having assembled polytypic, select the reliable electrical equipment parts of performance for use, thereby make that this device has compensation, boosts, inversion, the control automatically of boosting, frequency conversion output, computer transduce are controlled, temperature rise is controlled automatically and function such as multinomial protection; Can ensure effectively that the air-conditioning unit is in torridity summer borough chief time, continual normal operation, for the driver and conductor provides more comfortable operational environment.
The purpose of this utility model can realize by following technical proposals:
Locomotive convertible frequency air-conditioner supply unit; by the input offset circuit; the BOOST booster circuit; the BOOST control system of boosting; the frequency conversion output circuit; computer transduce control and protection system are formed; it is characterized in that: the both positive and negative polarity of external power source and input offset circuit connect into the loop; input offset circuit and the BOOST control system of boosting; the BOOST booster circuit connects into the loop; input offset circuit and computer transduce control and protection system; the frequency conversion output circuit; the BOOST booster circuit connects into the loop; the frequency conversion output circuit is output as the air-conditioning unit power supply is provided, and BOOST boosts and links to each other between control of control system and computer transduce and the protection system.
Described input offset circuit be main power source just; negative pole is via two connector (K103; K104) input; anodal one the tunnel via a rectification half-bridge module D3 unit; be connected to the energy storage inductor LS input of BOOST booster circuit; another Lu Jingyi diode D1 is connected to coil one end of control relay 1FD; another termination primary input power cathode of coil; shunt capacitor C1 between coil; the control power supply just; consequent pole is via other two connector (K101; K102) input; anodal one the tunnel via other two diode (D4; D5) and another rectification half-bridge module D6 unit be connected to energy storage inductor LS input, another road is the control system of boosting through the normally opened contact that another diode D2 is connected to control relay 1FD; computer transduce/protection system and radiator fan output control positive source.
Described BOOST booster circuit, after the RC network filtering that capacitor C3, C4 and resistance R 1 are formed, be connected to energy storage inductor LS input by the direct voltage of the rectification half-bridge module IV1 of input offset circuit output, energy storage inductor LS output is connected to the link by 2 unit I GBT, in parallel between 2 unit IGBT cathode output ends and negative pole end by a resistance R 2, six capacitor (C5, C6, C7, C8, C9, C10) RC network of Zu Chenging and voltage sensor NV.
The described BOOST control system of boosting is a working power by the normally open contact input of the control relay 1FD of input offset circuit; the control signal of output is connected to the control utmost point (G1, G2) of 2 unit IGBT of BOOST booster circuit, BOOST boost control system voltage sensor NV detection signal by T1, the T2 of the voltage sensor NV of BOOST booster circuit be connected to feedback input end and and computer transduce control and protection system between be connected to order wire and carry out the signal transmission.
Described frequency conversion output circuit is by current sensor NA, 6 unit Intelligent Power Module IPM and three three-phase current sensor (NAU, NAV, NAW) form, the input positive source serial connection current sensor NA of BOOST booster circuit, the IPM input is anodal to link to each other with current sensor NA output, IPM input negative pole links to each other with the main power source negative pole, 6 unit Intelligent Power Module IPM form 3 modulated inverter brachium pontis, form a three-phase modulations inverter, the connection mid point of each brachium pontis draws and picks out terminals, export U respectively, V, three-phase current sensor (NAU of the corresponding respectively series connection of W three-phase alternating voltage, three-phase, NAV, NAW).
Described computer transduce control and protection system; working power is by the normally open contact input of the control relay 1FD of input offset circuit; the control signal of output is connected to 6 the control utmost point (G3 of 6 unit Intelligent Power Module I PM of frequency conversion output circuit; G4; G5; G6; G7; G8); the current sensor NA detection signal that the input power supply of frequency conversion output circuit just is being connected in series is by the T3 of current sensor NA; T4 is connected to feedback input end; the U of frequency conversion output circuit output; V; three-phase current sensor (the NAU of W three-phase alternating voltage series connection; NAV; NAW) detection signal is respectively by TU1; TU2; TV1; TV2; TW1; TW2 is connected to feedback input end, computer transduce control and protection system and and BOOST boost and be connected to order wire between control system and carry out signal transmission.
The magnetic core of the energy storage inductor LS of described BOOST booster circuit adopts the high frequency non-crystalline material.
Input offset circuit of the present utility model is can be in locomotive high-power electric appliance startup etc. former thereby cause when voltage is instantaneous to be reduced significantly, realization is to the compensation in short-term of input main circuit, with ensure the air-conditioning unit input main power source is instantaneous when fluctuating widely can stable operation, reduce the air-conditioning system fault and take place.The magnetic core of the energy storage inductor LS of BOOST booster circuit of the present utility model adopts the novel high-frequency non-crystalline material, and its volume is greatly reduced, weight saving, and it is lower than the traditional magnetic heating to generate heat when the output equal-wattage, and oneself power consumption is little.The input direct current main power source that the utility model just alters a great deal magnitude of voltage is modulated to stable 255V DC power supply output, and the frequency of three-phase inversion output is at 30-75HZ, and the voltage of output is at the three-phase alternating voltage of 73V-152V.The utility model constitute boost, frequency conversion, multifunction protection closed-loop control device.
The utility model has improved the fail safe and the reliability of power supply greatly.Characteristics such as especially its volume is little, in light weight not only are convenient to carrying is installed, and for having saved valuable space in locomotive inside, also make keep in repair very convenient.
Description of drawings
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is a circuit diagram of the present utility model.
Embodiment
The utility model will be further described in conjunction with the accompanying drawings.
As shown in Figure 1; the utility model is by input offset circuit a; BOOST booster circuit b; the BOOST control system c that boosts; frequency conversion output circuit d; computer transduce control and protection system e form; the both positive and negative polarity of external power source and input offset circuit a connect into the loop; input offset circuit a and the BOOST control system c that boosts; the BOOST b circuit that boosts connects into the loop; input offset circuit a and computer transduce control and protection system e; frequency conversion output circuit d; BOOST booster circuit b connects into the loop; frequency conversion output circuit d is output as the air-conditioning unit power supply is provided, and BOOST boosts and links to each other between control of control system c and computer transduce and the protection system e.
As shown in Figure 2; main power source just; negative pole is via connector K103; the K104 input; anodal one the tunnel via rectification half-bridge module D3 unit; be connected to the energy storage inductor LS input of BOOST booster circuit; another road is connected to coil one end of control relay 1FD through diode D1; another termination primary input power cathode of coil; shunt capacitor C1 between coil; the control power supply just; consequent pole is via connector K101; the K102 input; anodal one the tunnel via diode D4; D5 and rectification half-bridge module D6 unit also are connected to energy storage inductor LS input, and another road is connected to control relay 1FD through diode D2 normally opened contact is the control system c that boosts; computer transduce/protection system f and radiator fan output control positive source.
After the RC network filtering that capacitor C3, C4 and resistance R 1 are formed, be connected to energy storage inductor LS input by the direct voltage of the rectification half-bridge module IV1 of input offset circuit output, energy storage inductor LS output is connected to the link by 2 unit IGBT (Isolated Gate Transistor), in parallel between 2 unit IGBT (Isolated Gate Transistor) cathode output end P and negative pole end N by resistance R 2, six capacitor (C5, C6, C7, C8, C9, C10) RC network of Zu Chenging and voltage sensor NV:
The BOOST control system c that boosts; working power is by the normally open contact input of the control relay 1FD of input offset circuit a; the control signal of output is connected to control utmost point G1, the G2 of the 2 unit IGBT of BOOST booster circuit b, BOOST boost control system c voltage sensor NV detection signal by voltage sensor T1, the T2 of BOOST booster circuit be connected to BOOST boost control system c feedback input end and and computer transduce control and protection system e between be connected to order wire and carry out the signal transmission:
Described frequency conversion output circuit is by current sensor NA, 6 unit Intelligent Power Module IPM and three three-phase current sensor (NAU, NAV, NAW) form, boosting afterwards via BOOST, constant 255V direct current is connected to frequency conversion output circuit d, the input power supply just is being serially connected with current sensor NA, comprise one 6 unit Intelligent Power Module IPM (Intellignt Power Modulc), the IPM input is anodal to link to each other with current sensor NA output, the input negative pole links to each other with the main power source negative pole, 3 modulated inverter brachium pontis are formed in 6 unit, form a three-phase modulations inverter, the connection mid point of each brachium pontis draws and picks out terminals, export U respectively, V, W three-phase alternating voltage, three-phase correspondence respectively are in series with three-phase current sensor NAU, NAV, NAW:
Computer transduce control and protection system e; working power is by the normally open contact input of the control relay 1FD of input offset circuit a; the control signal of output is connected to 6 the control utmost point (G3 of the 6 unit Intelligent Power Module IPM of frequency conversion output circuit d; G4; G5; G6; G7; G8); frequency conversion output circuit d; the current sensor NA detection signal that the input power supply just is being connected in series is by T3; T4 is connected to the feedback input end of system, the U of frequency conversion output circuit d output; V; three-phase current sensor (the NAU of W three-phase alternating voltage series connection; NAV; NAW) detection signal is by TU1; TU2; TV1; TV2; TW1; TW2 be connected to system feedback input end and and BOOST boost and be connected to order wire between control system c and carry out signal transmission.
The input offset circuit a of this supply unit, BOOST booster circuit b, BOOST the boost control of control system c, frequency conversion output circuit d, computer transduce and protection system e and voltage sensor NV, current sensor NA, three-phase current sensor (NAU, NAV, NAW) that each is special-purpose; be installed in the metal structure of totally-enclosed a, full-shield; have three external connectors; interface 1 is the power supply input; interface 2 is the output of air conditioner unit; interface 3 is the input of drivers' cab control box, and implementation and operation is very convenient.
Claims (7)
1. locomotive convertible frequency air-conditioner supply unit; by the input offset circuit; the BOOST booster circuit; the BOOST control system of boosting; the frequency conversion output circuit; computer transduce control and protection system are formed; it is characterized in that: the both positive and negative polarity of external power source and input offset circuit connect into the loop; input offset circuit and the BOOST control system of boosting; the BOOST booster circuit connects into the loop; input offset circuit and computer transduce control and protection system; the frequency conversion output circuit; the BOOST booster circuit connects into the loop; the frequency conversion output circuit is output as the air-conditioning unit power supply is provided, and BOOST boosts and links to each other between control of control system and computer transduce and the protection system.
2. locomotive convertible frequency air-conditioner supply unit according to claim 1; it is characterized in that: described input offset circuit be main power source just; negative pole is via two connector (K103; K104) input; anodal one the tunnel via a rectification half-bridge module D3 unit; be connected to the energy storage inductor LS input of BOOST booster circuit; another Lu Jingyi diode D1 is connected to coil one end of control relay 1FD; another termination primary input power cathode of coil; shunt capacitor C1 between coil; the control power supply just; consequent pole is via other two connector (K101; K102) input; anodal one the tunnel via other two diode (D4; D5) and another rectification half-bridge module D6 unit be connected to energy storage inductor LS input, another road is the control system of boosting through the normally opened contact that another diode D2 is connected to control relay 1FD; computer transduce/protection system and radiator fan output control positive source.
3. locomotive convertible frequency air-conditioner supply unit according to claim 1, it is characterized in that: described BOOST booster circuit, after the RC network filtering that capacitor C3, C4 and resistance R 1 are formed, be connected to energy storage inductor LS input by the direct voltage of the rectification half-bridge module IV1 of input offset circuit output, energy storage inductor LS output is connected to the link by 2 unit IGBT, in parallel between 2 unit IGBT cathode output ends and negative pole end by a resistance R 2, six capacitor (C5, C6, C7, C8, C9, C10) RC network of Zu Chenging and voltage sensor NV.
4. locomotive convertible frequency air-conditioner supply unit according to claim 1; it is characterized in that: the described BOOST control system of boosting is a working power by the normally open contact input of the control relay 1FD of input offset circuit; the control signal of output is connected to the control utmost point (G1, G2) of 2 unit IGBT of BOOST booster circuit, BOOST boost control system voltage sensor NV detection signal by T1, the T2 of the voltage sensor NV of BOOST booster circuit be connected to feedback input end and and computer transduce control and protection system between be connected to order wire and carry out the signal transmission.
5. locomotive convertible frequency air-conditioner supply unit according to claim 1, it is characterized in that: described frequency conversion output circuit is by current sensor NA, 6 unit Intelligent Power Module IPM and three three-phase current sensor (NAU, NAV, NAW) form, the input positive source serial connection current sensor NA of BOOST booster circuit, the IPM input is anodal to link to each other with current sensor NA output, IPM input negative pole links to each other with the main power source negative pole, 6 unit Intelligent Power Module IPM form 3 modulated inverter brachium pontis, form a three-phase modulations inverter, the connection mid point of each brachium pontis draws and picks out terminals, export U respectively, V, three-phase current sensor (NAU of the corresponding respectively series connection of W three-phase alternating voltage, three-phase, NAV, NAW).
6. locomotive convertible frequency air-conditioner supply unit according to claim 1; it is characterized in that: described computer transduce control and protection system; working power is by the normally open contact input of the control relay 1FD of input offset circuit; the control signal of output is connected to 6 the control utmost point (G3 of 6 unit Intelligent Power Module IPM of frequency conversion output circuit; G4; G5; G6; G7; G8); the current sensor NA detection signal that the input power supply of frequency conversion output circuit just is being connected in series is by the T3 of current sensor NA; T4 is connected to feedback input end; the U of frequency conversion output circuit output; V; three-phase current sensor (the NAU of W three-phase alternating voltage series connection; NAV; NAW) detection signal is respectively by TU1; TU2; TV1; TV2; TW1; TW2 is connected to feedback input end, computer transduce control and protection system and and BOOST boost and be connected to order wire between control system and carry out signal transmission.
7. locomotive convertible frequency air-conditioner supply unit according to claim 1 is characterized in that: the magnetic core of the energy storage inductor LS of described BOOST booster circuit adopts the high frequency non-crystalline material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201193916U CN201629680U (en) | 2010-02-10 | 2010-02-10 | Locomotive variable-frequency air-conditioning power supply device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201193916U CN201629680U (en) | 2010-02-10 | 2010-02-10 | Locomotive variable-frequency air-conditioning power supply device |
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| Publication Number | Publication Date |
|---|---|
| CN201629680U true CN201629680U (en) | 2010-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201193916U Expired - Lifetime CN201629680U (en) | 2010-02-10 | 2010-02-10 | Locomotive variable-frequency air-conditioning power supply device |
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| CN (1) | CN201629680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259412A (en) * | 2013-04-18 | 2013-08-21 | 宁波中博电器有限公司 | Direct current boost power source for direct current boost inverter compressor |
-
2010
- 2010-02-10 CN CN2010201193916U patent/CN201629680U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259412A (en) * | 2013-04-18 | 2013-08-21 | 宁波中博电器有限公司 | Direct current boost power source for direct current boost inverter compressor |
| CN103259412B (en) * | 2013-04-18 | 2015-03-11 | 宁波中博电器有限公司 | Direct current boost power source for direct current boost inverter compressor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101110 |