CN115333384A - Multifunctional energy-recoverable bidirectional driving topological structure - Google Patents
Multifunctional energy-recoverable bidirectional driving topological structure Download PDFInfo
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- CN115333384A CN115333384A CN202210963293.8A CN202210963293A CN115333384A CN 115333384 A CN115333384 A CN 115333384A CN 202210963293 A CN202210963293 A CN 202210963293A CN 115333384 A CN115333384 A CN 115333384A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M5/4585—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only having a rectifier with controlled elements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a multifunctional energy-recoverable bidirectional driving topological structure which comprises a single-phase full-bridge module, a three-phase half-bridge module, a relay capacitor, a vector control module, a rectifier control module and a power generation detection module, wherein the single-phase full-bridge module is connected with the three-phase half-bridge module; the symmetrical electric energy conversion structure of alternating current-direct current-alternating current is skillfully utilized, so that the electric and power generation bidirectional driving of the motor of the body-building device is realized, and the utilization rate of the hardware of a driving module is improved; the push-pull type body builder is provided with the controllable electronic load, compared with the traditional body builder, the push-pull type body builder can automatically allocate and adapt to the exercise load, and the universality and the safety of the body builder are improved; the driving structure gives consideration to both electric and power generation modes, makes full use of the special working condition of the reciprocating motion of the motor of the push-pull type fitness equipment, and feeds back available electric energy to a power grid in time, so that the energy consumption is reduced, and the energy efficiency is improved.
Description
Technical Field
The invention relates to the technical field of motor control, in particular to a bidirectional driving topological structure for multifunctional energy recovery.
Background
In recent years, with the improvement of consumption ability and the change of consumption concept, more and more people love fitness, so the market demand for the electric fitness equipment is gradually expanded; the electric driving system of the fitness equipment motor has the advantages of high efficiency, energy conservation, low carbon, environmental protection, sensitive control and the like, and improves the safety and reliability of the equipment; however, the existing motor system of the electric body builder still has some defects to be solved urgently; on one hand, when the motor of the body building device works in a power utilization mode, because the load required by a user is unknown, the traditional driving scheme cannot accurately adjust the equipment load and cannot obtain the load condition in time and adapt to the corresponding working condition, so that high power utilization efficiency is achieved constantly; on the other hand, when the push-pull type body-building device does reciprocating motion, the return stroke usually needs to be reset by using the electric appliance, the return stroke is in an idle-speed non-working state, energy can not be fed back to cause waste, the traditional driving scheme cannot give consideration to two states of power utilization and energy feedback, and has the problems of low power density and low energy efficiency, so that a multifunctional energy recovery-possible bidirectional driving topological structure is urgently needed to solve the problems.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a bidirectional driving topological structure with multiple functions and energy recovery.
The technical scheme adopted by the embodiment of the invention for solving the technical problem is as follows: a multifunctional energy-recoverable bidirectional driving topological structure comprises a single-phase full-bridge module, a three-phase half-bridge module, a relay capacitor, a vector control module, a rectifier control module and a power generation detection module;
the system comprises a single-phase full-bridge module, a three-phase half-bridge module, a motor, a relay capacitor, a rectifier control module, a three-phase full-bridge module, a three-phase half-bridge module, a vector control module, an inverter control module, a three-phase full-bridge module, a three-phase inverter control module, a three-phase half-bridge module, a three-phase inverter control module, a three-phase power generation detection module and a motor, wherein mains supply is connected to the single-phase full-bridge module;
in the power utilization mode, commercial power provides three-phase alternating current for the motor after passing through the single-phase full-bridge module, the relay capacitor and the three-phase half-bridge module, and the vector control module provides gate signals of the three-phase half-bridge module;
under the energy recovery mode, the motor feeds back to the commercial power after passing through the three-phase half-bridge module, the relay capacitor and the single-phase full-bridge module, and the rectifier control module provides the driving logic of the three-phase half-bridge module.
In one or more embodiments, a multi-functional energy recovery bi-directional drive topology further includes a power factor correction module connected between the vector control module and the single-phase full bridge module and a signal feedback module connected between the vector control module and the motor.
In one or more embodiments, the bidirectional driving topology with multi-functional energy recovery further includes an inverter control module connected between the single-phase full bridge module and the rectifier control module, and a phase detection module connected between the utility power and the inverter control module.
In one or more embodiments, a multi-functional energy-efficient bi-directional driving topology further includes an EMI filter module connected between a utility power and a single-phase full-bridge module.
In one or more examples, a single-phase full-bridge module includes two silicon devices forming one of the legs and two wide-bandgap devices forming the other leg.
In one or more embodiments, the silicon devices are configured as IGBTs or MOSFETs and the wide bandgap devices are configured as gallium nitride transistors.
The invention has the beneficial effects that:
1. skillfully utilizes a symmetrical electric energy conversion structure of alternating current-direct current-alternating current, the electric and power generation bidirectional driving of the motor of the body-building device is realized, and the utilization rate of the hardware of the driving module is improved;
2. the push-pull type body builder is provided with the controllable electronic load, compared with the traditional body builder, the push-pull type body builder can automatically allocate and adapt to the exercise load, and the universality and the safety of the body builder are improved;
3. the driving structure gives consideration to both electric and power generation modes, fully utilizes the special working condition of the reciprocating motion of the motor of the push-pull type body-building device, available electric energy is fed back to the power grid in time, so that the energy consumption is reduced and the energy efficiency is improved.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a topology diagram of a multifunctional energy-scavenging bi-directional drive topology;
FIG. 2 is a topology diagram of a multifunctional energy-recoverable bi-directional drive topology in a power mode;
FIG. 3 is a topology diagram of a multifunctional energy-recoverable bi-directional drive topology in energy recovery mode;
FIG. 4 is a block diagram of the control logic of the PFC module;
fig. 5 is a control logic block diagram of the inverter control module.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, a plurality of means is two or more, and greater than, less than, more than, etc. are understood as excluding the present number, and greater than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless explicitly defined otherwise, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.
Referring to fig. 1 to 5, a multifunctional energy-recoverable bidirectional driving topology structure includes a single-phase full-bridge module 1, a three-phase half-bridge module 2, a relay capacitor 3, a vector control module 10, a rectifier control module 7, and a power generation detection module 8;
the commercial power is connected into a single-phase full-bridge module 1, a motor 4 is connected into a three-phase half-bridge module 2, a relay capacitor 3 is connected between the single-phase full-bridge module 1 and the three-phase half-bridge module 2, the three-phase half-bridge module 2 is controlled by a vector control module 10, the single-phase full-bridge module 1 is controlled by an inverter control module, a rectifier control module 7 is connected among the three-phase half-bridge module 2, a power generation detection module 8 and the commercial power, and the power generation detection module 8 is connected with the motor 4;
in the power consumption mode, commercial power provides three-phase alternating current for the motor 4 after passing through the single-phase full-bridge module 1, the relay capacitor 3 and the three-phase half-bridge module 2, and the vector control module 10 provides a gate pole signal of the three-phase half-bridge module 2;
in the energy recovery mode, the motor 4 is fed back to the mains supply through the three-phase half-bridge module 2, the relay capacitor 3 and the single-phase full-bridge module 1, and the rectifier control module 7 provides driving logic of the three-phase half-bridge module 2.
In the invention, referring to fig. 1, the main hardware of an embodiment of a multifunctional energy-recoverable bidirectional driving topological structure comprises a single-phase full-bridge module 1, a three-phase half-bridge module 2, a relay capacitor 3 and a motor 4, wherein the single-phase full-bridge module 1 is composed of composite devices, one bridge arm comprises two silicon devices Q1 and Q2, the other bridge arm comprises two wide-bandgap devices Q3 and Q, the silicon devices are set to be IGBTs or MOSFETs, and the wide-bandgap devices are set to be gallium nitride transistors, so that the advantages of small on-resistance and small reverse recovery current of the former can be fully utilized to reduce the switching loss, and the latter can ensure higher power grade, so that the former can play a role in high performance during power factor correction or inversion.
Referring to fig. 2, in the power consumption mode of the present embodiment, firstly, the EMI filter module 12 filters the interference part in the utility power, and secondly, the power factor correction module 9 controls the single-phase full-bridge module 1 to optimize the voltage and current phase difference according to the load condition, so as to improve the power quality; finally, the vector control module 10 provides gate signals of the three-phase half-bridge module 2 according to the information such as the position and the current of the rotor of the motor 4 given by the signal feedback module 11, so as to realize the starting, the frequency conversion and the speed regulation of the motor 4 and the tracking of the load torque.
Referring to fig. 3, in the energy recovery mode, in the embodiment, first, the power generation detection module 8 determines when the motor 4 enters the power generation mode according to the monitored characteristics of the electrical signal of the motor 4; secondly, the three-phase half-bridge module 2 is used as a controllable rectifying circuit at the moment, the rectifier control module 7 provides driving logic, three-phase alternating current in a winding of the motor 4 is converted into direct current electric energy, and the direct current electric energy is stabilized and stored in the relay capacitor 3; finally, the single-phase full-bridge module 1 is used as a single-phase inverter at this time, the obtained single-phase alternating current can be fed back to the power grid after being filtered by the EMI filter module 12, and the inverter control module 6 can improve the quality of the recovered power and the adaptability to the power grid.
Referring to fig. 4, it is a control logic diagram of the power factor correction 9 in the power consumption mode; firstly, the voltage control loop 13 monitors the error between the voltage of the commercial power and the voltage reference value in real time, the voltage setter gives out a control signal to eliminate the error, and then the control signal cooperates with the reference value calculation module to give out the optimal current reference value under the load working condition; thirdly, the current control loop 14 monitors the error between the real-time value of the load current on the bus and the current reference value and gives a control signal of the current setter to eliminate the error; the obtained control signal can be used as the voltage duty ratio of the single-phase full-bridge module 1 after amplitude limiting, and finally the voltage modulator 15 provides a PWM driving signal.
Referring to fig. 5, it is a logic block diagram of the inverter control module 6 in the energy recovery mode; firstly according to the AC voltage V of the bus oc Calculating the optimal current amplitude and phase information under the working condition, i ref According to the bus current i L And a reference current i ref And finally, the voltage modulator 15 gives a PWM driving signal to control V oc And realizing feedback control.
The invention has the advantages that: 1. the symmetrical electric energy conversion structure of alternating current-direct current-alternating current is skillfully utilized, so that the electric and power generation bidirectional driving of the motor of the body-building device is realized, and the utilization rate of the hardware of a driving module is improved;
2. the push-pull type body builder is provided with the controllable electronic load, compared with the traditional body builder, the push-pull type body builder can automatically allocate and adapt to the exercise load, and the universality and the safety of the body builder are improved;
3. the driving structure gives consideration to both electric and power generation modes, makes full use of the special working condition of the reciprocating motion of the motor of the push-pull type fitness equipment, and feeds back available electric energy to a power grid in time, so that the energy consumption is reduced, and the energy efficiency is improved.
The multifunctional energy-recovery bidirectional driving topology further comprises a power factor correction module 9 connected between the vector control module 10 and the single-phase full-bridge module 1 and a signal feedback module 11 connected between the vector control module 10 and the motor 4; the real-time power factor correction of the single-phase full-bridge module 1 in the power utilization mode is realized through the power factor correction module 9, so that the phase difference between an inverter and a mains supply is always an optimal value under the working condition that the load is unknown or changed, and the AC-DC electric energy conversion with high quality and low energy consumption is completed; the power factor correction module 9 is implemented using a totem-pole bridgeless topology.
The multifunctional energy-recovery bidirectional driving topological structure further comprises an inverter control module 6 connected between the single-phase full-bridge module 1 and the rectifier control module 7, and a phase detection module 5 connected between a mains supply and the inverter control module 6.
The multifunctional energy-recovery bidirectional driving topological structure further comprises an EMI filtering module 12 connected between a mains supply and the single-phase full-bridge module 1.
The single-phase full-bridge module 1 comprises two silicon devices Q1 and Q2 forming one bridge arm and two wide bandgap devices Q3 and Q4 forming the other bridge arm.
The silicon device is set to be IGBT or MOSFET, and the wide bandgap device is set to be gallium nitride transistor.
It is to be understood that the present invention is not limited to the above-described embodiments, and that equivalent modifications and substitutions may be made by those skilled in the art without departing from the spirit of the present invention, and that such equivalent modifications and substitutions are to be included within the scope of the appended claims.
Claims (6)
1. The utility model provides a but two-way drive topological structure of multi-functional energy recuperation which characterized in that: the system comprises a single-phase full-bridge module (1), a three-phase half-bridge module (2), a relay capacitor (3), a vector control module (10), a rectifier control module (7) and a power generation detection module (8);
the commercial power is connected into a single-phase full-bridge module (1), the motor (4) is connected into a three-phase half-bridge module (2), the relay capacitor (3) is connected between the single-phase full-bridge module (1) and the three-phase half-bridge module (2), the three-phase half-bridge module (2) is controlled by a vector control module (10), the single-phase full-bridge module (1) is controlled by an inverter control module, a rectifier control module (7) is connected among the three-phase half-bridge module (2), a power generation detection module (8) and the commercial power, and the power generation detection module (8) is connected with the motor (4);
in the power utilization mode, commercial power provides three-phase alternating current for the motor (4) after passing through the single-phase full-bridge module (1), the relay capacitor (3) and the three-phase half-bridge module (2), and the vector control module (10) provides gate signals of the three-phase half-bridge module (2);
under the energy recovery mode, the motor (4) feeds back to the mains supply after passing through the three-phase half-bridge module (2), the relay capacitor (3) and the single-phase full-bridge module (1), and the rectifier control module (7) provides driving logic of the three-phase half-bridge module (2).
2. The multifunctional energy-recoverable bi-directional drive topology of claim 1, wherein: the motor control system also comprises a power factor correction module (9) connected between the vector control module (10) and the single-phase full-bridge module (1) and a signal feedback module (11) connected between the vector control module (10) and the motor (4).
3. The multifunctional energy-recoverable bi-directional drive topology of claim 1, wherein: the system also comprises an inverter control module (6) connected between the single-phase full-bridge module (1) and the rectifier control module (7) and a phase detection module (5) connected between the commercial power and the inverter control module (6).
4. A multifunctional energy-recuperative bi-directional drive topology according to claim 1, characterized in that: the single-phase full-bridge power supply further comprises an EMI filtering module (12) connected between a mains supply and the single-phase full-bridge module (1).
5. The multifunctional energy-recoverable bi-directional drive topology of claim 1, wherein: the single-phase full-bridge module (1) comprises two silicon devices (Q1 and Q2) forming one bridge arm and two wide-bandgap devices (Q3 and Q4) forming the other bridge arm.
6. A multifunctional energy-recuperative bi-directional drive topology according to claim 5, characterized in that: the silicon device is set to be an IGBT or an MOSFET, and the wide bandgap device is set to be a gallium nitride transistor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210963293.8A CN115333384A (en) | 2022-08-11 | 2022-08-11 | Multifunctional energy-recoverable bidirectional driving topological structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210963293.8A CN115333384A (en) | 2022-08-11 | 2022-08-11 | Multifunctional energy-recoverable bidirectional driving topological structure |
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