CN109104136A - Self-charging hybrid power Frequency converting driving device - Google Patents
Self-charging hybrid power Frequency converting driving device Download PDFInfo
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- CN109104136A CN109104136A CN201811125272.9A CN201811125272A CN109104136A CN 109104136 A CN109104136 A CN 109104136A CN 201811125272 A CN201811125272 A CN 201811125272A CN 109104136 A CN109104136 A CN 109104136A
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- Prior art keywords
- motor
- super capacitor
- current
- self
- frequency converting
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
Abstract
The invention discloses a kind of self-charging hybrid power Frequency converting driving devices, comprising: rectification unit, filtering energy-storage units, charging control unit and Frequency converting driving unit；Rectification unit includes six rectifier diodes, and six rectifier diodes form three-phase bridge rectifier circuit；Charging control unit includes filtering mutual inductor, A.C. contactor and current-limiting resistor；Frequency converting driving unit includes frequency converter and motor, and the three-phase output end of frequency converter is correspondingly connected with the input terminal of motor respectively；Filtering energy-storage units includes super capacitor group and battery group, and the battery in super capacitor and battery group in super capacitor group is mutually connected.According to the technical solution of the present invention, it can be worked normally in inputing power, electric energy when without inputing power using self-charging process in filtering energy-storage units storage works, and realizes operation of the motor under hybrid power.
Description
Technical field
The present invention relates to technical field of hybrid power more particularly to a kind of self-charging hybrid power Frequency converting driving devices.
Background technique
In the prior art, during oil pumping in oil fields, the motor acting of the beam pumping unit generallyd use is power consumption,
Gravity during down stroke due to sucker rod, which makes the button distance of motor change, makes runaway speed rotation make electricity
Motivation becomes generator, and the size that motor is generated electricity has relationship with the weight and balance weight of underground sucker rod.In general well
Lower sucker rod weight more retransmits that electricity is bigger, is usually artificially unable to control its generated energy.
Electricity utilizes certainly during the frequency converter that oil field uses all is artificially by beam pumping unit in downlink at present
Dynamic resistance consumption falls, and not by its effective utilization, electricity is caused to waste.
Summary of the invention
At least one of regarding to the issue above, the present invention provides a kind of self-charging hybrid power Frequency converting driving device,
Three-phase alternating current is converted into direct current by rectification unit, can be stored electricity by filtering energy-storage units, is charged
Control unit prevents the excessive damage for causing filtering energy-storage units of charging current, then will be straight after rectification by Frequency converting driving unit
Galvanic electricity inversion is the three-phase alternating current that motor is applicable in, and can be worked normally in inputing power, using certainly when without inputing power
Charging process realizes operation of the motor under hybrid power in the electric energy work of filtering energy-storage units storage.
To achieve the above object, the present invention provides a kind of self-charging hybrid power Frequency converting driving devices, comprising: rectification is single
Member, filtering energy-storage units, charging control unit and Frequency converting driving unit；The rectification unit include six rectifier diodes, six
A rectifier diode forms three-phase bridge rectifier circuit, and the input terminal of the three-phase bridge rectifier circuit intersects with three respectively
Galvanic electricity is connected；The charging control unit includes filtering mutual inductor, A.C. contactor and current-limiting resistor, the three-phase bridge
The cathode output end of rectification circuit is connected in series with the filtering mutual inductor, and the filtering mutual inductor is mutually gone here and there with the current-limiting resistor
Connection, the A.C. contactor are in parallel with the current-limiting resistor；The Frequency converting driving unit includes frequency converter and motor, described
The positive terminal of frequency converter is connected in series with the current-limiting resistor, the negative pole end of the frequency converter and the three-phase bridge rectifier circuit
Cathode output end be connected, input terminal of the three-phase output end of the frequency converter respectively with the motor is correspondingly connected with；It is described
Filtering energy-storage units includes super capacitor group and battery group, and the super capacitor group is in parallel with the battery group, described
Super capacitor group includes the super capacitor that at least two groups are connected in series, and the battery group includes the electric power storage that at least two groups are connected in series
Pond, the anode of the super capacitor group and the anode of the battery group are all connected to the current-limiting resistor and the frequency converter
Positive terminal between route on, the cathode of the cathode of the super capacitor group and the battery group is all connected to the frequency conversion
The negative pole end of device.
In the above-mentioned technical solutions, it is preferable that in the three-phase bridge rectifier circuit of the rectification unit, three-phase alternating current
Each terminals are connected with two rectifier diodes, which is connect with anode and cathode with corresponding respectively
Line end is connected, and the cathode for the rectifier diode being connected with anode with terminals in three groups is connected, with cathode and wiring in three groups
The anode of the connected rectifier diode in end is connected.
In the above-mentioned technical solutions, it is preferable that the motor is the dynamic structure component of beam pumping unit.
In the above-mentioned technical solutions, it is preferable that the direct current filtered in energy-storage units is reduced to exchange by the frequency converter
Electricity, the voltage and frequency of the alternating current after reduction match with the motor.
In the above-mentioned technical solutions, it is preferable that the motor is variable-frequency motor.
Compared with prior art, the invention has the benefit that three-phase alternating current is converted to direct current by rectification unit
Electricity can be stored electricity by filtering energy-storage units, and charging control unit prevents charging current is excessive from causing filter bank
The damage of energy unit, then the three-phase alternating current for being applicable in the DC inverter after rectification for motor by Frequency converting driving unit, energy
Electric energy work that is enough to be worked normally in inputing power, being stored using self-charging process in filtering energy-storage units when without inputing power
Make, realizes operation of the motor under hybrid power.
Detailed description of the invention
Fig. 1 is the circuit connection signal of self-charging hybrid power Frequency converting driving device disclosed in an embodiment of the present invention
Figure.
Corresponding relationship in figure, between each component and appended drawing reference are as follows:
11. rectification unit, 111. rectifier diodes, 12. charging control units, 121. A.C. contactors, 122. filtering are mutual
Sensor, 123. current-limiting resistors, 13. filtering energy-storage units, 131. battery groups, 132. super capacitor groups, 14. Frequency converting driving lists
Member, 141. frequency converters, 142. motors.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, a kind of self-charging hybrid power Frequency converting driving device provided according to the present invention, comprising: rectification is single
Member 11, filtering energy-storage units 13, charging control unit 12 and Frequency converting driving unit 14；Rectification unit 11 includes six two poles of rectification
Pipe 111, six rectifier diodes 111 form three-phase bridge rectifier circuits, and the input terminal of three-phase bridge rectifier circuit is respectively with three
Phase alternating current is connected；Charging control unit 12 includes filtering mutual inductor 122, A.C. contactor 121 and current-limiting resistor 123,
The cathode output end of three-phase bridge rectifier circuit is connected in series with filtering mutual inductor 122, filters mutual inductor 122 and current-limiting resistor
123 are connected in series, and A.C. contactor 121 is in parallel with current-limiting resistor 123；Frequency converting driving unit 14 includes frequency converter 141 and electricity
Machine 142, positive terminal and the current-limiting resistor 123 of frequency converter 141 are connected in series, the negative pole end of frequency converter 141 and three-phase bridge rectification
The cathode output end of circuit is connected, and input terminal of the three-phase output end of frequency converter 141 respectively with motor 142 is correspondingly connected with；Filter
Wave energy-storage units 13 include super capacitor group 132 and battery group 131, and super capacitor group 132 is in parallel with battery group 131,
Super capacitor group 132 includes the super capacitor that at least two groups are connected in series, and battery group 131 includes the electric power storage that at least two groups are connected in series
Pond, the anode of super capacitor group 132 and the anode of battery group 131 are being all connected to current-limiting resistor 123 and frequency converter 141 just
On route between extreme, the cathode of super capacitor group 132 and the cathode of battery group 131 are all connected to the negative of frequency converter 141
Extremely.
In this embodiment, specifically, rectification unit 11 is as general rectification circuit principle, by six rectification diodes
Three-phase bridge rectifier circuit is formed, three-phase alternating current is become into Rectified alternating current.Energy-storage units 13 are filtered by 132 He of super capacitor
131 collective effect of battery, and electricity can be stored wherein.Charging control unit 12 is connect by filtering mutual inductor 122, exchange
Tentaculum 121, current-limiting resistor 123 form, to prevent charging current is excessive from super capacitor 132 and battery 131 being caused to damage.Become
DC inverter stored after rectification is met the work of 142 dragging system of motor by frequency tug unit 14 at three-phase alternating current
The direct current filtered in energy-storage units 13 is reduced to alternating current by voltage, frequency converter 141, the voltage and frequency of the alternating current after reduction
Rate matches with motor 142.
In such an embodiment, it is preferable motor 142 is the dynamic structure component of beam pumping unit.
Specifically, as shown in Figure 1, the rectification unit 11 that the rectified diode D1-D6 of three-phase alternating current is constituted is rectified into directly
Galvanic electricity, the alternating current that DC voltage is reduced into exchange 380V by the inverse frequency transformer 141 in frequency converter 141, frequency is 50Hz, with full
The terms and conditions of sufficient motor run beam pumping unit.The principle of dynamic duty is: electronic when beam pumping unit downlink
The torque of machine and load variation make motor 142 be in generating state, so that C, E point current potential increase, to super while current potential increases
Grade capacitor 132 and battery 131 charge, and charging voltage is 2 times of rectified voltage, charging current I=P/U, if P=45Kw is so
Charging current is I=100A, is tested discovery for a long time, and the rated operational current of motor is exactly when motor is in power generation
Charging current, that is, referred to as self-charging the reason of.
Wherein it is preferred in the three-phase bridge rectifier circuit of rectification unit 11, each terminals of three-phase alternating current and two
A rectifier diode 111 is connected, which is connected with anode and cathode with corresponding terminals respectively, and three
The cathode for the rectifier diode 111 being connected with anode with terminals in group is connected, and is connected with cathode with terminals in three groups
The anode of rectifier diode 111 is connected.
In the above embodiment, it is preferable that motor 142 is variable-frequency motor 142, frequency is changed with reality by frequency converter 141
The stepless shift function of existing motor 142.
In the above-described embodiments, device can be worked normally in the case where inputting 380V alternating current, when not having input AC
In the case where electricity, work using the electric energy stored in filtering energy-storage units 13, as hybrid power actuator, two kinds
Power source can meet the requirement of the dragging load of normal motor 142.
The above is embodiments of the present invention, the self-charging hybrid power Frequency converting driving dress proposed according to the present invention
It sets, three-phase alternating current is converted to by direct current by rectification unit, electricity can be stored by filtering energy-storage units, filled
Electric control unit prevents the excessive damage for causing filtering energy-storage units of charging current, then will be after rectification by Frequency converting driving unit
DC inverter is the three-phase alternating current that motor is applicable in, and can be worked normally in inputing power, without utilizing when inputing power
Self-charging process realizes operation of the motor under hybrid power in the electric energy work of filtering energy-storage units storage.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of self-charging hybrid power Frequency converting driving device characterized by comprising rectification unit, fills filtering energy-storage units
Electric control unit and Frequency converting driving unit；
The rectification unit includes six rectifier diodes, and six rectifier diodes form three-phase bridge rectifier circuit, institute
The input terminal for stating three-phase bridge rectifier circuit is connected with three-phase alternating current respectively；
The charging control unit includes filtering mutual inductor, A.C. contactor and current-limiting resistor, the three-phase bridge rectification electricity
The cathode output end on road is connected in series with the filtering mutual inductor, and the filtering mutual inductor is connected in series with the current-limiting resistor, institute
A.C. contactor is stated to be in parallel with the current-limiting resistor；
The Frequency converting driving unit includes frequency converter and motor, and the positive terminal of the frequency converter is mutually gone here and there with the current-limiting resistor
Connection, the negative pole end of the frequency converter are connected with the cathode output end of the three-phase bridge rectifier circuit, and the three of the frequency converter
Input terminal of the phase output terminal respectively with the motor is correspondingly connected with；
The filtering energy-storage units include super capacitor group and battery group, and the super capacitor group and the battery group are mutually simultaneously
Connection, the super capacitor group includes the super capacitor that at least two groups are connected in series, and the battery group includes that at least two groups are connected in series
Battery, the super capacitor group anode and the battery group anode be all connected to the current-limiting resistor with it is described
On route between the positive terminal of frequency converter, the cathode of the cathode of the super capacitor group and the battery group is all connected to institute
State the negative pole end of frequency converter.
2. self-charging hybrid power Frequency converting driving device according to claim 1, which is characterized in that the rectification unit
In three-phase bridge rectifier circuit, each terminals of three-phase alternating current are connected with two rectifier diodes, this two rectifications
Diode is connected with anode and cathode with corresponding terminals respectively, the rectifier diode being connected with anode with terminals in three groups
Cathode be connected, the anode for the rectifier diode being connected with cathode with terminals in three groups is connected.
3. self-charging hybrid power Frequency converting driving device according to claim 1, which is characterized in that the motor is walking beam
The dynamic structure component of formula pumping unit.
4. self-charging hybrid power Frequency converting driving device according to claim 1, which is characterized in that the frequency converter will be filtered
Direct current in wave energy-storage units is reduced to alternating current, and the voltage and frequency of the alternating current after reduction match with the motor.
5. self-charging hybrid power Frequency converting driving device according to claim 1 or 4, which is characterized in that the motor is
Variable-frequency motor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811125272.9A CN109104136A (en) | 2018-09-26 | 2018-09-26 | Self-charging hybrid power Frequency converting driving device |
| PCT/CN2019/100681 WO2020063173A1 (en) | 2018-09-26 | 2019-08-15 | Self-charging hybrid power variable frequency drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811125272.9A CN109104136A (en) | 2018-09-26 | 2018-09-26 | Self-charging hybrid power Frequency converting driving device |
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| Publication Number | Publication Date |
|---|---|
| CN109104136A true CN109104136A (en) | 2018-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811125272.9A Pending CN109104136A (en) | 2018-09-26 | 2018-09-26 | Self-charging hybrid power Frequency converting driving device |
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| Country | Link |
|---|---|
| CN (1) | CN109104136A (en) |
| WO (1) | WO2020063173A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020063173A1 (en) * | 2018-09-26 | 2020-04-02 | 杨雪梅 | Self-charging hybrid power variable frequency drive device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158065A (en) * | 2011-03-01 | 2011-08-17 | 徐州中矿大传动与自动化有限公司 | Method and device for controlling startup of PWM (pulse width modulation) rectifier without network side electrodynamic potential sensor |
| CN103490524A (en) * | 2013-09-16 | 2014-01-01 | 江苏大学 | Large-scale hybrid energy storage system and control strategy thereof |
| CN204652281U (en) * | 2015-05-27 | 2015-09-16 | 赵建明 | The energy-efficient Frequency converting driving device of 1140V |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202508704U (en) * | 2012-03-21 | 2012-10-31 | 成都市特种设备检验院 | Elevator energy feedback device |
| FR3049130B1 (en) * | 2016-03-16 | 2019-06-28 | Alstom Transport Technologies | ELECTRIC ENERGY CONVERSION SYSTEM, ELECTRIC ENERGY STORAGE APPARATUS, AND TRACTION CHAIN FOR A RAIL VEHICLE |
| CN207117525U (en) * | 2017-07-04 | 2018-03-16 | 贵州玖玖新能源有限公司 | Energy saving frequency converter |
| CN109104136A (en) * | 2018-09-26 | 2018-12-28 | 杨雪梅 | Self-charging hybrid power Frequency converting driving device |
-
2018
- 2018-09-26 CN CN201811125272.9A patent/CN109104136A/en active Pending
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2019
- 2019-08-15 WO PCT/CN2019/100681 patent/WO2020063173A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158065A (en) * | 2011-03-01 | 2011-08-17 | 徐州中矿大传动与自动化有限公司 | Method and device for controlling startup of PWM (pulse width modulation) rectifier without network side electrodynamic potential sensor |
| CN103490524A (en) * | 2013-09-16 | 2014-01-01 | 江苏大学 | Large-scale hybrid energy storage system and control strategy thereof |
| CN204652281U (en) * | 2015-05-27 | 2015-09-16 | 赵建明 | The energy-efficient Frequency converting driving device of 1140V |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020063173A1 (en) * | 2018-09-26 | 2020-04-02 | 杨雪梅 | Self-charging hybrid power variable frequency drive device |
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| WO2020063173A1 (en) | 2020-04-02 |
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Application publication date: 20181228 |