WO2022053852A1 - Dispositivo y proceso para aumentar la eficiencia de motores eléctricos, reduciendo el consumo energético de los mismos - Google Patents
Dispositivo y proceso para aumentar la eficiencia de motores eléctricos, reduciendo el consumo energético de los mismos Download PDFInfo
- Publication number
- WO2022053852A1 WO2022053852A1 PCT/IB2020/058435 IB2020058435W WO2022053852A1 WO 2022053852 A1 WO2022053852 A1 WO 2022053852A1 IB 2020058435 W IB2020058435 W IB 2020058435W WO 2022053852 A1 WO2022053852 A1 WO 2022053852A1
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- WO
- WIPO (PCT)
- Prior art keywords
- efficiency
- electric motors
- subsystem
- increase
- transistor
- Prior art date
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Classifications
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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
- H02J3/01—Arrangements for reducing harmonics or ripples
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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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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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
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/26—Power factor control [PFC]
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Definitions
- the present invention is related to a device and process to increase the efficiency of electric motors, reducing heat losses, hysteresis losses, losses due to the creation of Eddy currents, losses due to resistance and stress, losses due to vibrations and mainly due to generation of BMF (Back Electromagnetic Fields) or inverse electromagnetic fields, where the device is composed of a subsystem for influencing the power factor and reactive currents, a harmonic current elimination subsystem, an electronic commutation subsystem, a of operation and dissipation, and a DC power supply subsystem, which are configured to obtain the greatest energy benefit from an external AC source, reducing the consumption of the electric motors that use the device by up to 70%.
- BMF Back Electromagnetic Fields
- inverse electromagnetic fields where the device is composed of a subsystem for influencing the power factor and reactive currents, a harmonic current elimination subsystem, an electronic commutation subsystem, a of operation and dissipation, and a DC power supply subsystem, which are configured to obtain the greatest
- Electric motors are the equipment with the highest energy consumption in the planet. Approximately 70% of world consumption corresponds to electromotive and auxiliary equipment such as fans, pumps, air compressors, conveyor belts, among others. Given its importance and high global application, it is evident that energy consumption in the world is proportional to the use of these devices, thus identifying a need to implement energy saving mechanisms for these electric motors.
- the electric motor is a device that transforms electrical energy into mechanical energy, through the action of the magnetic fields generated in its coils, so they belong to the field of rotating machines composed of a stator and a rotor, being in some cases reversible its function, that is, transformation of mechanical energy into electrical energy (generators).
- Electric motors basically consist of two parts, the Stator, which is the fixed part, which acts magnetically operating as a base, and the Rotor, which is the moving part that allows the transfer, since the conversion of electrical energy to mechanical depends on it.
- Asynchronous or induction motors are the most widely used and are motors in which the rotor moves by electromagnetic induction generated by the stator's magnetic field.
- auxiliary equipment such as frequency converters and operation controllers, among others, that improve performance by reducing consumption by up to 30% only in completely new motors and equipment.
- the total cross sections of the wire used in each main and additional winding are of predetermined sizes and preferably follow the approximate ratio of approximately two-thirds (%) for the main winding and approximately one-third (%) for the additional winding, and the respective values of the condenser are predetermined.
- the number of turns of each additional winding is fifty to one hundred percent (50%-100%) of the number of turns of its respective main winding.
- the two coils are built simultaneously in a single operation.
- the invention defined in this foregoing has the disadvantage that in order to increase the efficiency of the motor, it requires modifying the winding of said motor, without providing an electronic configuration to reduce losses due to electrical consumption in induction motors that has a circuit to eliminate harmonic currents, a signal of peak-cutting capacitors, and in the latest designs we do not use a signal of peak-cutting capacitors, which serve as correctors and frequency controllers, a "switching" transistor is controlled by an integrated circuit, making the process much more complex and expensive optimization method.
- US9041464B2 discloses a circuit to reduce energy consumption, which includes a power amplifier. The circuit also includes a predistortor coupled to the power amplifier.
- the circuit further includes a power supply coupled to the power amplifier.
- the circuit further includes a controller coupled to the power amplifier, predistortor and power supply. The controller captures a transmit signal and a feedback signal simultaneously and determines a minimum bias voltage from a set of voltages and predistortion that enables the power amplifier to produce an amplified transmit signal according to a requirement.
- this prior invention has the drawback that it focuses on reducing consumption in electronic devices, so it does not specifically mention an electronic configuration to reduce losses due to electrical consumption in induction motors that has a circuit to eliminate harmonic currents, a series of short peak capacitors, correctors and frequency controllers, a "switching" transistor that is controlled by an integrated circuit with which a greater optimization in energy consumption would be obtained.
- US9214876B2 which belongs to the field of power electronics and control of semiconductor converters, where it also belongs to the shot generation method for modified Z sine wave, quasi-Z and trans-Z inverters.
- the inverter can be controlled using the modified sine wave pulse width modulation method or the phase shift modulation method.
- the invention defined in said document has the disadvantage of including a large number of components, which do not include an electronic configuration to reduce losses due to electrical consumption in induction motors, which has a circuit to eliminate harmonic currents, a series of short peak capacitors, correctors and frequency controllers, a "switching" transistor that is controlled by an integrated circuit with which a greater optimization in energy consumption would be obtained.
- the invention described in this foregoing has the disadvantage that it allows improving the efficiency in the conversion of energy from DC to AC, which does not include an electronic configuration to reduce losses due to electrical consumption in induction motors that have a circuit for eliminate harmonic currents, a series of short peak capacitors, correctors and frequency controllers, a "switching" transistor that is controlled by a integrated circuit with which a greater optimization in energy consumption would be obtained.
- Figure 1 shows a view of each of the components of the device and their interaction.
- Figure 2 shows how the device interacts with the heat dissipation mechanism.
- Figure 3 shows the BMF currents, generated in all the motors in operation, these currents tend to wrap the synodal wave of the current that actually moves the motor. These currents include harmonics and noise, where the noise corresponds to disruptive currents that are taken as an inductive load, generating a much higher consumption for the motor than it generally needs for its operation (all this is part of the sum of the current that the manufacturer takes of these as normal consumption).
- the figure 3a. is an actual graph taken from the measuring instrument
- Figure 3b is a representative schematic of Figure 3a.
- Figure 4 shows the sinusoidal wave that represents the operating current of the motor, when adapting to the device disclosed in the present invention.
- Figure 4a. is an actual graph taken from the measuring instrument
- Figure 4b is a representative schematic of Figure 4a.
- the present invention is directed to a device for increasing the efficiency of single-phase, two-phase and three-phase induction electric motors, reducing their energy consumption, wherein said device comprises:
- a harmonic current elimination subsystem (2) made up of an LRC circuit (23), two capacitors (21) and a resistor (22). Where in addition to blocking harmonic currents, it blocks low frequencies that could affect the efficiency of the device.
- An electronic switching subsystem (3) made up of a transistor
- Said subsystem (3) also comprises a capacitor (33) that eliminates the transients that may be generated in the operation of the integrated circuit.
- said transistor (31) is a switching element.
- said switching element interrupts in very short intervals the current sinusoidal wave at its highest and lowest peak for each phase that feeds the motor, which not only allows us to obtain a significant current gain, but also interrupts the transcendent of ascending currents, descending currents and all the harmonics, noises or inductive fields generated in the motor.
- Said subsystem (3) also comprises an RC circuit (35) that eliminates the hysteresis generated in the switching of the transistor (31), made up of a capacitor (351) and a resistor (352).
- an operation and dissipation subsystem (4) made up of a heat sink, and a tactile or similar operating element.
- the transistor (31) operates in a temperature range between -40°C and 125°C. however, for the present device it operates with loads of up to 35 amps, at a temperature of 45°C to 60°C.
- Said heat sink is made of aluminum fins of 5 cm X 5 cm, by 10 cm for single-phase motors, and 5 cm X 5 cm, by 17 cm or more, for two-phase and three-phase motors.
- This device also comprises a power supply subsystem (5), made up of a current rectifier integrated circuit (51), a DC filter capacitor (52), a variable resistor (53) and a voltage regulation transistor (54) which feed the integrated circuit (32), and the alarm circuit for short circuit in the transistor (31).
- a power supply subsystem (5) made up of a current rectifier integrated circuit (51), a DC filter capacitor (52), a variable resistor (53) and a voltage regulation transistor (54) which feed the integrated circuit (32), and the alarm circuit for short circuit in the transistor (31).
- the subsystem 1 presents a phase shift of the capacitive current in the capacitor (1 1), whose effect increases the power factor, where when the current flows from the capacitor (11) to the inductive load circuit, the magnetizing current of the motor, thus decreasing the reactive energy. In this way, the high frequencies that generate stress in the network are absorbed by the capacitor (1 1 ).
- the device has an integrated wave and voltage rectifier circuit (61) to maintain constant values, together with the resistors (62), (63) that allow the transistor conduction time base to be reduced ( 31), in each period.
- the device has a software that connects to each phase to measure in real time the consumption, performance and operation of the equipment, where additionally, it allows to know the consumption of each motor through an APP for mobile phones. This monitoring is done 24/7/365.
- the system is configured for a two-phase motor, replicating each of the previous elements for the second phase.
- system is configured for a three-phase motor, replicating each of the above elements for the second phase and the third phase.
- the present invention also teaches a process to increase the efficiency of electric motors, reducing heat losses, hysteresis losses, losses due to the creation of Eddy currents, losses due to resistance and stress, losses due to vibrations and mainly due to the generation of BMF (Back Electromagnetic Fields) or inverse electromagnetic fields, where said process comprises the following stages:
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
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Priority Applications (1)
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PCT/IB2020/058435 WO2022053852A1 (es) | 2020-09-11 | 2020-09-11 | Dispositivo y proceso para aumentar la eficiencia de motores eléctricos, reduciendo el consumo energético de los mismos |
Applications Claiming Priority (1)
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PCT/IB2020/058435 WO2022053852A1 (es) | 2020-09-11 | 2020-09-11 | Dispositivo y proceso para aumentar la eficiencia de motores eléctricos, reduciendo el consumo energético de los mismos |
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WO2022053852A1 true WO2022053852A1 (es) | 2022-03-17 |
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PCT/IB2020/058435 WO2022053852A1 (es) | 2020-09-11 | 2020-09-11 | Dispositivo y proceso para aumentar la eficiencia de motores eléctricos, reduciendo el consumo energético de los mismos |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100449190B1 (ko) * | 2004-04-02 | 2004-09-20 | (주)세빅코리아 | 절전형 자동 역률 조정 장치 및 그 방법 |
US9331566B1 (en) * | 2015-02-18 | 2016-05-03 | Adaptive Frequency Holdings, LLC | Adaptive AC power exchanger |
CN107276485A (zh) * | 2017-08-14 | 2017-10-20 | 高玉琴 | 一种三相电动机节电器 |
-
2020
- 2020-09-11 WO PCT/IB2020/058435 patent/WO2022053852A1/es active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100449190B1 (ko) * | 2004-04-02 | 2004-09-20 | (주)세빅코리아 | 절전형 자동 역률 조정 장치 및 그 방법 |
US9331566B1 (en) * | 2015-02-18 | 2016-05-03 | Adaptive Frequency Holdings, LLC | Adaptive AC power exchanger |
CN107276485A (zh) * | 2017-08-14 | 2017-10-20 | 高玉琴 | 一种三相电动机节电器 |
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