CN215580914U - Improved wind power converter - Google Patents
Improved wind power converter Download PDFInfo
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- CN215580914U CN215580914U CN202120864989.6U CN202120864989U CN215580914U CN 215580914 U CN215580914 U CN 215580914U CN 202120864989 U CN202120864989 U CN 202120864989U CN 215580914 U CN215580914 U CN 215580914U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Abstract
The utility model relates to an improved wind power converter, which comprises a control cabinet and a power cabinet; a plurality of radiating fans are arranged in the power cabinet and respectively radiate the cabinet body and the reactor, and a network side power unit radiating fan is arranged in the power cabinet; the heat dissipation device comprises a circuit breaker 3QF681, and the output end of the circuit breaker is connected with a primary coil of a transformer 2T 681; a secondary coil of the transformer 2T681 outputs four lines a, b, c and n, the lines a, b and c output phase voltages, and the line n is a zero line; wherein, the grounding terminal of the transformer 2T681 is connected to the cabinet ground row; the line a and the line n are output through a breaker 2QF 282; after the output of the line a passes through a normally open contact of the relay 2K281.2, one path is connected with a 2 pin of a heater 2EH281 of the mainboard PCB and the control cabinet, the other path passes through a terminal pin 1 of the heater 2EH281, and a terminal pin 3 of the heater 2EH281 is connected with n lines; the utility model has reasonable design, compact structure and convenient use.
Description
Technical Field
The utility model relates to an improved wind power converter.
Background
The wind power converter is a device which enables the amplitude, frequency and phase of the output voltage of the stator side of the doubly-fed generator to be the same as those of a power grid by exciting the rotor of the doubly-fed asynchronous wind power generator, can control the doubly-fed asynchronous wind power generator to realize soft grid connection, and reduces the adverse effect of grid connection impact current on a motor and the power grid. The main heating components of the converter comprise a power module and a reactor, and in order to ensure that the components maintain good performance, the heat of each heating component needs to be dissipated when the converter works.
However, the air duct design of the existing converter heat dissipation device is to connect each heating component in series in the whole ventilation direction, so that different heating components are difficult to be separately dissipated, the air temperature along the flowing direction of the heat dissipation air gradually becomes higher, namely, the heat dissipation capability of the heat dissipation air to the heating components gradually becomes worse, and further, the performance and the service life of part of the components are greatly influenced. Chinese patent CN105162310A discloses a structural device for a cascaded co-phase power supply converter, which is formed by connecting power units (i.e. power modules) in parallel, each power unit is provided with a single cabinet for isolating adjacent power units, and the two ends of each single cabinet along the flow direction of the heat dissipation wind are provided with wind ports, i.e. each single cabinet is provided with an independent wind channel. However, since the performance of the power unit has a high requirement for the ambient environment (such as air humidity), when the device is applied to dissipate heat of the power unit, the air humidity of the ambient environment where the power unit in each single cabinet is located may be increased, which may affect the performance and the service life of the power unit. Although the CN201610945486.5 converter heat abstractor improves a set of heat abstractor, degree of automation is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing an improved wind power converter.
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
an improved wind power converter comprises a control cabinet and a power cabinet; a plurality of radiating fans are arranged in the power cabinet and respectively radiate the cabinet body and the reactor, and a network side power unit radiating fan is arranged in the power cabinet;
the heat dissipation device comprises a circuit breaker 3QF681, and the output end of the circuit breaker is connected with the primary side of a transformer 2T 681; the secondary side of the transformer 2T681 outputs four lines a, b, c and n, the lines a, b and c output phase voltages, and the line n is a zero line; wherein the content of the first and second substances,
the ground terminal of the transformer 2T681 is connected to the cabinet ground row;
the line a and the line n are output through a breaker 2QF 282; after the output of the line a passes through a normally open contact of the relay 2K281.2, one path is connected with a terminal pin 2 of a heater 2EH281 of the mainboard PCB and the control cabinet, the other path passes through a terminal pin 1 of the heater 2EH281, and a terminal pin 3 of the heater 2EH281 is connected with n lines;
wherein, the lines a, b, c and n pass through a breaker 2QF281 and respectively output lines 2, 4, 6 and 8;
the output line 2 is respectively connected with terminal pins 1 and 2 of a heater 3EH281 of the power cabinet after passing through a relay normally-open execution switch 2K 281.1;
the output line 4 is respectively connected with the terminal pins 1 and 2 of the heater 1EH281 of the power cabinet after passing through the normally open execution switch 2K281.1 of the relay;
the output line 6 is respectively connected with the terminal pins 1 and 2 of the heater 1EH282 of the power cabinet after passing through the normally open execution switch 2K281.2 of the relay;
the output line 8 is respectively connected with the terminal pins 3 of the heaters 3EH281, 1EH281 and 1EH 282;
the circuit b and the circuit n are output through a breaker 2QF283, the circuit b outputs two paths, and one path is respectively connected to the ends L of the 2M281 and the 2M282 of the heat dissipation fans of the power cabinet body and the ends L of the 2M283 and the 2M284 of the heat dissipation fans of the power cabinet reactor through a relay 2K 283.1; the other path is respectively connected to the end L of the network side power unit cooling fans 1M281 and 1M282 through a relay 2K 284.1;
a line N is respectively connected to ends N of 2M281 and 2M282 of a power cabinet body heat dissipation fan, ends N of 2M283 and 2M284 of a power cabinet reactor heat dissipation fan, and ends N of 1M281 and 1M282 of a network side power unit heat dissipation fan;
the end PEs of the 2M281 and 2M282 of the power cabinet body cooling fan, the end PEs of the 2M283 and 2M284 of the power cabinet reactor cooling fan, and the end PEs of the 1M281 and 1M282 of the network side power unit cooling fan are respectively connected with the cabinet body ground row;
the circuit c and the circuit n are output through a breaker 2QF284, the circuit c is output in two paths, and one path of the circuit c passes through a relay 2K285.1 and is respectively connected with the terminals L of the machine side power unit cooling fans 1M283 and 1M 284; the other path is respectively connected to the ends L of 1M285 and 1M286 of the reactor cooling fan through a relay 2K 286.1;
a line N is respectively connected into ends N of the heat radiation fans 1M283 and 1M284 of the machine side power unit and ends N of the heat radiation fans 1M285 and 1M286 of the reactor;
the end PE of 1M283 and 1M284 of the machine side power unit cooling fan and the end PE of 1M285 and 1M286 of the reactor cooling fan are respectively connected with the cabinet body ground row;
and after the line a and the line n pass through the breaker 2QF291 and the stabilized power supply 2G293, the input power supply is provided for the control PCB.
As a further improvement of the above technical solution:
an emergency stop switch 3K231, temperature control switches 2S821 and 2S282 and a relay 2K282 control coil are connected in series between the line c and the line n;
the off temperature of thermo switch 2S821 is 40 ℃, and the off temperature of thermo switch 2S282 is 5 ℃.
A control switch component and a relay controlled coil component are connected in series between the line c and the line n;
the control switch assembly comprises normally open temperature control switches 3S281 and 1S281 and normally closed humidity switches 3S282 and 1S282 which are connected in parallel;
the upper limit of the disconnection temperature of the temperature control switches 3S281 and 1S281 is 5 ℃;
the upper limit of the closing humidity of the humidity switches 3S282 and 1S282 is 85% RH;
the controlled coil assembly of the relay comprises control coils of 2K281.1 and 2K281.2 which are connected in parallel.
The utility model has the advantages of reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, capital saving, compact structure and convenient use. The temperature and humidity can be set, the temperature sensor is used for monitoring, the general temperature control switch is set, the safety temperature control switch is used for realizing the on-off control of the relay, the fan is driven to blow air and cool the monitored position, the humidity switch is used for starting the corresponding position to heat, and the blowing air and the humidity can be removed at the same time.
Drawings
Fig. 1 is a schematic diagram of the circuit principle of the transformer 2T681 of the present invention.
Fig. 2 is a schematic diagram of the electric circuit of the heater 2EH281 of the present invention.
Fig. 3 is a schematic diagram of the electric circuit of the heater 3EH281 of the present invention.
Fig. 4 is a schematic circuit diagram of the fan 2M281 according to the present invention.
Fig. 5 is a schematic diagram of a circuit principle used by the NTC of the temperature sensor of the present invention.
Fig. 6 is a schematic circuit diagram of the switch 2S282 of the present invention.
Fig. 7 is a schematic circuit diagram of the circuit breaker 2K281.1 of the present invention.
Fig. 8 is a schematic circuit diagram of the fan 1M284 of the present invention.
Fig. 9 is a schematic diagram of the circuit principle of the circuit breaker 2QF291 of the present invention.
Fig. 10 is a schematic diagram of the circuit principle of the present invention.
Detailed Description
As shown in fig. 1 to 10, the improved wind power converter of the embodiment includes a control cabinet and a power cabinet; heat dissipation devices are arranged in the control cabinet and the power cabinet; a plurality of radiating fans are arranged in the power cabinet and respectively radiate the cabinet body and the reactor, and a network side power unit radiating fan is arranged in the power cabinet;
the heat dissipation device comprises a circuit breaker 3QF681, and the output end of the circuit breaker is connected with the primary side of a transformer 2T 681; the secondary side of the transformer 2T681 outputs four lines a, b, c and n, the lines a, b and c output phase voltages, and the line n is a zero line; wherein the content of the first and second substances,
the ground terminal of the transformer 2T681 is connected to the cabinet ground row;
the line a and the line n are output through a breaker 2QF 282; after the output of the line a passes through a normally open contact of the relay 2K281.2, one path is connected with a terminal pin 2 of a heater 2EH281 of the mainboard PCB and the control cabinet, the other path passes through a terminal pin 1 of the heater 2EH281, and a terminal pin 3 of the heater 2EH281 is connected with n lines;
wherein, the lines a, b, c and n pass through a breaker 2QF281 and respectively output lines 2, 4, 6 and 8;
the output line 2 is respectively connected with terminal pins 1 and 2 of a heater 3EH281 of the power cabinet after passing through a relay normally-open execution switch 2K 281.1;
the output line 4 is respectively connected with the terminal pins 1 and 2 of the heater 1EH281 of the power cabinet after passing through the normally open execution switch 2K281.1 of the relay;
the output line 6 is respectively connected with the terminal pins 1 and 2 of the heater 1EH282 of the power cabinet after passing through the normally open execution switch 2K281.2 of the relay;
the output line 8 is respectively connected with the terminal pins 3 of the heaters 3EH281, 1EH281 and 1EH 282;
the circuit b and the circuit n are output through a breaker 2QF283, the circuit b outputs two paths, and one path is respectively connected to the ends L of the 2M281 and the 2M282 of the heat dissipation fans of the power cabinet body and the ends L of the 2M283 and the 2M284 of the heat dissipation fans of the power cabinet reactor through a relay 2K 283.1; the other path is respectively connected to the end L of the network side power unit cooling fans 1M281 and 1M282 through a relay 2K 284.1;
a line N is respectively connected to ends N of 2M281 and 2M282 of a power cabinet body heat dissipation fan, ends N of 2M283 and 2M284 of a power cabinet reactor heat dissipation fan, and ends N of 1M281 and 1M282 of a network side power unit heat dissipation fan;
the end PEs of the 2M281 and 2M282 of the power cabinet body cooling fan, the end PEs of the 2M283 and 2M284 of the power cabinet reactor cooling fan, and the end PEs of the 1M281 and 1M282 of the network side power unit cooling fan are respectively connected with the cabinet body ground row;
the circuit c and the circuit n are output through a breaker 2QF284, the circuit c is output in two paths, and one path of the circuit c passes through a relay 2K285.1 and is respectively connected with the terminals L of the machine side power unit cooling fans 1M283 and 1M 284; the other path is respectively connected to the ends L of 1M285 and 1M286 of the reactor cooling fan through a relay 2K 286.1;
a line N is respectively connected into ends N of the heat radiation fans 1M283 and 1M284 of the machine side power unit and ends N of the heat radiation fans 1M285 and 1M286 of the reactor;
the end PE of 1M283 and 1M284 of the machine side power unit cooling fan and the end PE of 1M285 and 1M286 of the reactor cooling fan are respectively connected with the cabinet body ground row;
and after the line a and the line n pass through the breaker 2QF291 and the stabilized power supply 2G293, the input power supply is provided for the control PCB.
A control coil of an emergency stop switch 3K231, temperature control switches 2S821 and 2S282 and a relay 2K282 is connected in series between the line c and the line n;
the off temperature of thermo switch 2S821 is 40 ℃, and the off temperature of thermo switch 2S282 is 5 ℃.
A control switch component and a relay controlled coil component are connected in series between the line c and the line n;
the control switch assembly comprises normally open temperature control switches 3S281 and 1S281 and normally closed humidity switches 3S282 and 1S282 which are connected in parallel;
the upper limit of the disconnection temperature of the temperature control switches 3S281 and 1S281 is 5 ℃;
the upper limit of the closing humidity of the humidity switches 3S282 and 1S282 is 85% RH;
the controlled coil assembly of the relay comprises control coils of 2K281.1 and 2K281.2 which are connected in parallel.
Lines b and N are connected with terminals N and L of a regulated power supply 2G292, and a terminal PE is grounded;
the 5V terminal and the COM + terminal of the stabilized voltage power supply 2G292 are connected with an external resistor; the COM + terminal is also connected with an input end X2.2 of the controller AP 33;
the output end V3 and the output end V2 of the regulated power supply 2G292 are respectively connected with the input ends X2.3 and X2.1 of the control PCB AP 33;
a temperature control sensor NTC is connected between the terminals X1.1 and X1.2 of the stabilized voltage power supply 2G 292;
a terminal 3.1 wiring circuit c of the control PCB board AP 33;
the control PCB board AP33 terminal 3.2 is electrically connected with a circuit n through a beam strip;
the line c is connected with the line n through a normally open switch 3K231 and a relay control coil 2K283.1 which are connected in series;
after the relay control coils 2K286.2, 2K285.2, 2K284.2 and 2K283.2 are connected in parallel, one end of the relay control coil is electrically connected with a circuit c through a normally open switch 3K 207; the other end is connected with a line n.
The utility model realizes remote monitoring and automatic control through the relay, thereby realizing the heat dissipation and heating control of the converter. The present invention has been described in sufficient detail for clarity of disclosure and is not exhaustive of the prior art. Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; it is obvious as a person skilled in the art to combine several aspects of the utility model. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. An improved generation wind power converter which characterized in that: comprises a control cabinet and a power cabinet; a plurality of radiating fans are arranged in the power cabinet and respectively radiate the cabinet body and the reactor, and a network side power unit radiating fan is arranged in the power cabinet;
the heat dissipation device comprises a circuit breaker 3QF681, and the output end of the circuit breaker is connected with the primary side of a transformer 2T 681; the secondary side of the transformer 2T681 outputs four lines a, b, c and n, the lines a, b and c output phase voltages, and the line n is a zero line; wherein the content of the first and second substances,
the ground terminal of the transformer 2T681 is connected to the cabinet ground row;
the line a and the line n are output through a breaker 2QF 282; after the output of the line a passes through a normally open contact of the relay 2K281.2, one path is connected with a terminal pin 2 of a heater 2EH281 of the mainboard PCB and the control cabinet, the other path passes through a terminal pin 1 of the heater 2EH281, and a terminal pin 3 of the heater 2EH281 is connected with n lines;
wherein, the lines a, b, c and n pass through a breaker 2QF281 and respectively output lines 2, 4, 6 and 8;
the output line 2 is respectively connected with terminal pins 1 and 2 of a heater 3EH281 of the power cabinet after passing through a relay normally-open execution switch 2K 281.1;
the output line 4 is respectively connected with the terminal pins 1 and 2 of the heater 1EH281 of the power cabinet after passing through the normally open execution switch 2K281.1 of the relay;
the output line 6 is respectively connected with the terminal pins 1 and 2 of the heater 1EH282 of the power cabinet after passing through the normally open execution switch 2K281.2 of the relay;
the output line 8 is respectively connected with the terminal pins 3 of the heaters 3EH281, 1EH281 and 1EH 282;
the circuit b and the circuit n are output through a breaker 2QF283, the circuit b outputs two paths, and one path is respectively connected to the ends L of the 2M281 and the 2M282 of the heat dissipation fans of the power cabinet body and the ends L of the 2M283 and the 2M284 of the heat dissipation fans of the power cabinet reactor through a relay 2K 283.1; the other path is respectively connected to the end L of the network side power unit cooling fans 1M281 and 1M282 through a relay 2K 284.1;
a line N is respectively connected to ends N of 2M281 and 2M282 of a power cabinet body heat dissipation fan, ends N of 2M283 and 2M284 of a power cabinet reactor heat dissipation fan, and ends N of 1M281 and 1M282 of a network side power unit heat dissipation fan;
the end PEs of the 2M281 and 2M282 of the power cabinet body cooling fan, the end PEs of the 2M283 and 2M284 of the power cabinet reactor cooling fan, and the end PEs of the 1M281 and 1M282 of the network side power unit cooling fan are respectively connected with the cabinet body ground row;
the circuit c and the circuit n are output through a breaker 2QF284, the circuit c is output in two paths, and one path of the circuit c passes through a relay 2K285.1 and is respectively connected with the terminals L of the machine side power unit cooling fans 1M283 and 1M 284; the other path is respectively connected to the ends L of 1M285 and 1M286 of the reactor cooling fan through a relay 2K 286.1;
a line N is respectively connected into ends N of the heat radiation fans 1M283 and 1M284 of the machine side power unit and ends N of the heat radiation fans 1M285 and 1M286 of the reactor;
the end PE of 1M283 and 1M284 of the machine side power unit cooling fan and the end PE of 1M285 and 1M286 of the reactor cooling fan are respectively connected with the cabinet body ground row;
and after the line a and the line n pass through the breaker 2QF291 and the stabilized power supply 2G293, the input power supply is provided for the control PCB.
2. The improved wind power converter as claimed in claim 1, wherein: an emergency stop switch 3K231, temperature control switches 2S821 and 2S282 and a relay 2K282 control coil are connected in series between the line c and the line n;
the off temperature of thermo switch 2S821 is 40 ℃, and the off temperature of thermo switch 2S282 is 5 ℃.
3. The improved wind power converter as claimed in claim 1, wherein: a control switch component and a relay controlled coil component are connected in series between the line c and the line n;
the control switch assembly comprises normally open temperature control switches 3S281 and 1S281 and normally closed humidity switches 3S282 and 1S282 which are connected in parallel;
the upper limit of the disconnection temperature of the temperature control switches 3S281 and 1S281 is 5 ℃;
the upper limit of the closing humidity of the humidity switches 3S282 and 1S282 is 85% RH;
the controlled coil assembly of the relay comprises control coils of 2K281.1 and 2K281.2 which are connected in parallel.
4. The improved wind power converter as claimed in claim 1, wherein: lines b and N are connected with terminals N and L of a regulated power supply 2G292, and a terminal PE is grounded;
the 5V terminal and the COM + terminal of the stabilized voltage power supply 2G292 are connected with an external resistor; the COM + terminal is also connected with an input end X2.2 of the controller AP 33;
the output end V3 and the output end V2 of the regulated power supply 2G292 are respectively connected with the input ends X2.3 and X2.1 of the controller AP 33;
a temperature control sensor NTC is connected between the terminals X1.1 and X1.2 of the stabilized voltage power supply 2G 292;
a terminal 3.1 wiring circuit c of the control PCB board AP 33;
the control PCB board AP33 terminal 3.2 is electrically connected with a circuit n through a beam strip;
the line c is connected with the line n through a normally open switch 3K231 and a relay control coil 2K283.1 which are connected in series;
after the relay control coils 2K286.2, 2K285.2, 2K284.2 and 2K283.2 are connected in parallel, one end of the relay control coil is electrically connected with a circuit c through a normally open switch 3K 207; the other end is connected with a line n.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120864989.6U CN215580914U (en) | 2021-04-26 | 2021-04-26 | Improved wind power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120864989.6U CN215580914U (en) | 2021-04-26 | 2021-04-26 | Improved wind power converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215580914U true CN215580914U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120864989.6U Active CN215580914U (en) | 2021-04-26 | 2021-04-26 | Improved wind power converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215580914U (en) |
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2021
- 2021-04-26 CN CN202120864989.6U patent/CN215580914U/en active Active
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