CN102862884A - Control device of alternating current/ direct current/ alternating current frequency conversion lifting machine - Google Patents
Control device of alternating current/ direct current/ alternating current frequency conversion lifting machine Download PDFInfo
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- CN102862884A CN102862884A CN2011101911569A CN201110191156A CN102862884A CN 102862884 A CN102862884 A CN 102862884A CN 2011101911569 A CN2011101911569 A CN 2011101911569A CN 201110191156 A CN201110191156 A CN 201110191156A CN 102862884 A CN102862884 A CN 102862884A
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- frequency converter
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Abstract
The invention discloses a control device of an alternating current/ direct current/ alternating current frequency conversion lifting machine which is characterized by comprising a frequency converter, a rotary drum, a motor shaft, a coupler, a synchronous motor, a coder, a rotary drum shaft, a power supply switch, a steel wire rope, a balance weight and a cage. The frequency converter adopts four-quadrant operation and is capable of converting input power supply into frequency conversion power supply with frequency and voltage capable of being automatically adjusted according to requirements. When the rotary drum runs in the regeneration state, loaded potential energy can be fed back to a power grid through the frequency converter. The synchronous motor is an alternating current low speed synchronous motor and is used for driving the rotary drum. A semicircular groove is arranged on the rotary drum, the power supply switch is a switch supplying power to the frequency converter, and the coder can detect rotating speed of the synchronous motor and relative position of a rotor of the motor. The motor shaft is connected with the rotary drum shaft through the coupler. The control device has the advantages of being high in working efficiency and high in power factor, saving electric energy, adopting the low speed synchronous motor and reducing loss caused by adopting a middle speed reducing device.
Description
Technical field
The present invention relates to a kind of control setup of gig, particularly a kind of ac-dc-ac inverter control device of hoister.
Background technology
The present situation of China's Electric Control System of Mine Hoister, many mine hoists still adopt the relay mode of relay-contactor, realize speed governing by the booster resistor that changes the rotor loop series connection.This mode of speed control is step speed regulation, and energy consumption is large during speed governing, belongs to rotor consumption of power type speed-regulating scheme.When acceleration phase and low cruise, most of energy (slip energy) consumes with the form of heat energy, so the operating efficiency of electric-control system is lower, and power consumption is large.Simultaneously, this speed-regulating scheme needs to adopt direct current energy consumption braking scheme (being dynamic brake) in order to produce braking torque under low synchronous regime, or adopts low-frequency brake.But no matter adopt which kind of mode, always need to arrange the secondary blocked operation of accessory feed and stator winding.Speed adjusting performance is poor, operating efficiency is low although this scheme exists, the switching dead band of running state reaches greatly the shortcomings such as speed governing is unsmooth, still generally uses in the mine of China at present.
What use was more at present is Direct Current Governor System, by regulating the speed governing of silicon controlled conduction angle.This regulative mode harmonic wave is large, and is large to the pollution of electrical network, and the DC motor operating efficiency is low, and loss is large, and carbon brush is easy to wear, and maintenance is large.
Summary of the invention
The technical problem to be solved in the present invention is: existing control device of hoister exists that speed adjusting performance is poor, operating efficiency is low, the switching dead band of running state reaches greatly the shortcomings such as speed governing is unsmooth.
The technical solution adopted for the present invention to solve the technical problems is: a kind of ac-dc-ac inverter control device of hoister is provided, and its feature comprises: frequency converter, cylinder, motor reel, coupler, synchronous motor, coder, drum shaft, power switch, half slot, steel rope, bob-weight and cage.
Described frequency converter, but it is characterized in that adopting the frequency converter with four quadrant running, inverter supply voltage can be selected three plase alternating current 380V-6000V, input power can be converted to the variable-frequency power sources that frequency and voltage all can be regulated as required automatically, when cylinder operates in reproduced state, the potential energy energy of load can be fed back to electrical network by frequency converter.
Described synchronous motor it is characterized in that AC low speed synchronous electric motor, is used for head roll.
Described half slot is characterized in that half slot is on described cylinder.
Described power switch it is characterized in that the switch for inverter supply.
Described coder is characterized in that detecting rotating speed and motor stator and the rotor relative position of synchronous motor.
Wherein, motor reel is connected with drum shaft by coupler.
Beneficial effect of the present invention: the present invention possesses following technical characterstic:
1, adopt ac-dc-ac inverter, high efficiency, power factor is high, saves energy.
2, adopt low-speed synchronous motor, motor reel directly is connected with bearing axle, has reduced the loss of adopting the intermediate reduction gear device.
3, but converter plant adopts the frequency converter with four quadrant running, the potential energy energy of load can be fed back to electrical network by frequency converter when cylinder operates in reproduced state, and energy savings has been avoided the waste of the energy.
4, the end at synchronous motor is equipped with for detection of the rotating speed of synchronous motor and the coder of motor stator and rotor relative position, can control more accurately the operation of synchronous motor.
5, inverter supply voltage can be selected three plase alternating current 380V-6000V.
Description of drawings
Fig. 1 is the structural representation of ac-dc-ac inverter control device of hoister of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing.The present invention will be further described.
As shown in Figure 1, the ac-dc-ac inverter control device of hoister, its feature comprises: 1, frequency converter, 2, cylinder, 3, motor reel, 4, coupler, 5, synchronous motor, 6, coder, 7, drum shaft, 8, power switch, 9, half slot, 10, steel rope, 11, bob-weight and 12, cage.
Described frequency converter, but it is characterized in that adopting the frequency converter with four quadrant running, input power can be converted to the variable-frequency power sources that frequency and voltage all can be regulated as required automatically, when cylinder operates in reproduced state, the potential energy energy of load can be fed back to electrical network by frequency converter.
Described synchronous motor it is characterized in that AC low speed synchronous electric motor, is used for head roll.
Described half slot is characterized in that half slot is on described cylinder.
Described power switch it is characterized in that the switch for inverter supply.
Described coder is characterized in that detecting rotating speed and motor stator and the rotor relative position of synchronous motor.
Wherein, motor reel is connected with drum shaft by coupler.
Source of AC is input to frequency converter 1 by switch 8, in frequency converter 1, input power is converted to the variable-frequency power sources that frequency and voltage all can be regulated as required automatically, the variable-frequency power sources of frequency converter 1 output provides power supply to synchronous motor 5, the output shaft 7 of electrical motor 5 arrives drum shaft 3 by coupler 4 with transmission of power, thereby transmission of power is arrived drum shaft 2, be provided with half slot 9 on the cylinder 2,10 is steel rope, when cylinder rotates, because the effect of friction force, drag load running by steel rope, steel rope one end is provided with bob-weight 11, the other end is provided with the container 12 that needs lifting, the rotating speed of synchronous motor and the coder 6 of motor stator and rotor relative position be equipped with to detect at synchronous motor 5.
More than show and described groundwork of the present invention and principal character and advantage of the present invention.The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification sheets just illustrates the part effective means of the present invention in Chinese application; without departing from the spirit and scope of the present invention; the present invention is applicable to any checking content of utilizing the Chinese language feature, and these checking contents all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (5)
1. ac-dc-ac inverter control device of hoister, its feature comprises: frequency converter, cylinder, motor reel, coupler, synchronous motor, coder, drum shaft, power switch, half slot, steel rope, bob-weight and cage;
Wherein, motor reel is connected with drum shaft by coupler.
2. ac-dc-ac inverter control device of hoister according to claim 1, it is characterized in that: but described frequency converter adopts the frequency converter with four quadrant running, inverter supply voltage can be selected three plase alternating current 380V-6000V, input power can be converted to the variable-frequency power sources that frequency and voltage all can be regulated as required automatically, when cylinder operates in reproduced state, the potential energy energy of load can be fed back to electrical network by frequency converter.
3. ac-dc-ac inverter control device of hoister according to claim 1, it is characterized in that: described synchronous motor is AC low speed synchronous electric motor.
4. ac-dc-ac inverter control device of hoister according to claim 1, it is characterized in that: described half slot is on described cylinder.
5. ac-dc-ac inverter control device of hoister according to claim 1, it is characterized in that: described coder can detect rotating speed and stator of synchronous motor and the rotor relative position of synchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101911569A CN102862884A (en) | 2011-07-08 | 2011-07-08 | Control device of alternating current/ direct current/ alternating current frequency conversion lifting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101911569A CN102862884A (en) | 2011-07-08 | 2011-07-08 | Control device of alternating current/ direct current/ alternating current frequency conversion lifting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102862884A true CN102862884A (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101911569A Pending CN102862884A (en) | 2011-07-08 | 2011-07-08 | Control device of alternating current/ direct current/ alternating current frequency conversion lifting machine |
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| CN (1) | CN102862884A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580584A (en) * | 2013-09-24 | 2014-02-12 | 上海华菱电站成套设备有限公司 | Redundancy medium voltage alternating current-direct current-alternating current frequency conversion device of duplex winding synchronous motor of mine hoist |
| CN105384098A (en) * | 2015-12-25 | 2016-03-09 | 武汉科技大学 | Automatic lifting device for draw shaft video probe |
| CN108773631A (en) * | 2018-06-11 | 2018-11-09 | 江苏威尔洛林科技有限公司 | A kind of motorized pulleys |
| CN114590731A (en) * | 2022-05-11 | 2022-06-07 | 新风光电子科技股份有限公司 | Self-adaptive coal mine hoisting winch frequency conversion method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201039081Y (en) * | 2007-04-03 | 2008-03-19 | 李志宏 | Frequency conversion speed regulation circuit of mining hoister |
| CN101707414A (en) * | 2009-11-27 | 2010-05-12 | 大连伯顿冠力电机有限公司 | Direct-drive type permanent magnet synchronous motor dedicated to mine hoister |
| CN201647786U (en) * | 2010-03-10 | 2010-11-24 | 山东泰鼎矿山机械有限公司 | Mine elevator driven by permanent magnetic synchronous motor |
| CN202148103U (en) * | 2011-07-12 | 2012-02-22 | 上海华菱电站成套设备有限公司 | AC-DC-AC (Alternating Current-Direct Current-Alternating Current) variable-frequency elevator controlling device |
-
2011
- 2011-07-08 CN CN2011101911569A patent/CN102862884A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201039081Y (en) * | 2007-04-03 | 2008-03-19 | 李志宏 | Frequency conversion speed regulation circuit of mining hoister |
| CN101707414A (en) * | 2009-11-27 | 2010-05-12 | 大连伯顿冠力电机有限公司 | Direct-drive type permanent magnet synchronous motor dedicated to mine hoister |
| CN201647786U (en) * | 2010-03-10 | 2010-11-24 | 山东泰鼎矿山机械有限公司 | Mine elevator driven by permanent magnetic synchronous motor |
| CN202148103U (en) * | 2011-07-12 | 2012-02-22 | 上海华菱电站成套设备有限公司 | AC-DC-AC (Alternating Current-Direct Current-Alternating Current) variable-frequency elevator controlling device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580584A (en) * | 2013-09-24 | 2014-02-12 | 上海华菱电站成套设备有限公司 | Redundancy medium voltage alternating current-direct current-alternating current frequency conversion device of duplex winding synchronous motor of mine hoist |
| CN103580584B (en) * | 2013-09-24 | 2016-02-17 | 上海华菱电站成套设备有限公司 | Ac-dc-ac inverter device is pressed in the redundancy of mine hoist double-winding synchronous motor |
| CN105384098A (en) * | 2015-12-25 | 2016-03-09 | 武汉科技大学 | Automatic lifting device for draw shaft video probe |
| CN105384098B (en) * | 2015-12-25 | 2017-07-28 | 武汉科技大学 | A kind of automatic lifting device of draw shaft video probe |
| CN108773631A (en) * | 2018-06-11 | 2018-11-09 | 江苏威尔洛林科技有限公司 | A kind of motorized pulleys |
| CN114590731A (en) * | 2022-05-11 | 2022-06-07 | 新风光电子科技股份有限公司 | Self-adaptive coal mine hoisting winch frequency conversion method |
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Application publication date: 20130109 |