CN112701695A - Intelligent energy-saving electric complete cabinet - Google Patents
Intelligent energy-saving electric complete cabinet Download PDFInfo
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- CN112701695A CN112701695A CN202011449084.9A CN202011449084A CN112701695A CN 112701695 A CN112701695 A CN 112701695A CN 202011449084 A CN202011449084 A CN 202011449084A CN 112701695 A CN112701695 A CN 112701695A
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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
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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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
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
- H02P1/32—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor by star-delta switching
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention provides an intelligent energy-saving electrical complete cabinet, which comprises a transformer main cabinet, wherein a filter cabinet, a capacitor cabinet and an outlet main cabinet are sequentially connected on the transformer main cabinet, the outlet main cabinet is connected with a motor of electric equipment through at least one of a frequency conversion cabinet, a star-delta voltage reduction energy-saving cabinet and a voltage boosting cabinet, the intelligent energy-saving electrical complete cabinet is realized through functions of soft start, speed regulation, an energy-saving module, power factor improvement, reactive compensation, harmonic filtering, super capacitor/storage battery and the like, and the intelligent energy-saving electrical complete cabinet is divided into three connection schemes through the connection mode of the motor and the outlet main cabinet, according to the electricity consumption and production requirements of the production line, a single scheme or a plurality of schemes can be selected for combined use, the power-saving device is a special power-saving product for special attack, through the whole set of scheme, the electricity-saving efficiency is about 30%, the production cost is reduced, the maximum economic benefit is brought to customers, and the method has a good development prospect.
Description
Technical Field
The invention relates to the field of electric power energy conservation and automation, in particular to an intelligent energy-saving electric complete cabinet.
Background
An electrical complete cabinet (also called a complete switch cabinet or a complete power distribution device) is an electrical device mainly comprising a circuit breaker; the device is characterized in that a manufacturer assembles related high-low voltage electric appliances (including control electric appliances, protective electric appliances and measuring electric appliances) and buses, current-carrying conductors, insulators and the like into a closed or open metal cabinet body according to the requirements of an electric primary main wiring diagram to serve as a device for receiving and distributing electric energy in an electric power system.
The innovation of the process technology drives the development of the industrial equipment manufacturing industry, and large-scale and automatic production equipment is gradually put into industrial production for use. And therefore also causes a large electric power consumption. In modern factories, electric power is the major part of energy consumption, generally accounts for 25% of production cost, enterprises with high mechanization degree can reach 40% or more, the electric consumption is distributed in each link of a production line, the aspects of production and life of employees in a whole factory are related, the consumption is more and more, the power distribution of the enterprises and factories is usually designed according to the capacity of user equipment, the utilization rate of the equipment and the treatment are not considered, and a large amount of waste of the electric power is caused.
Disclosure of Invention
The invention aims to provide an intelligent frequency conversion energy-saving electric complete cabinet which can reduce the electric energy consumption in factory production so as to reduce the production cost, save energy and protect environment.
In order to achieve the purpose, the invention provides the following technical scheme:
an intelligent energy-saving electrical complete cabinet comprises a transformer main cabinet, wherein a filtering cabinet, a capacitor cabinet and an outlet main cabinet are sequentially connected onto the transformer main cabinet, and the outlet main cabinet is connected with an electric motor of a power utilization device through at least one of a frequency conversion cabinet, a star-delta voltage reduction energy-saving cabinet and a voltage boosting cabinet.
As a further scheme of the invention: the transformer main cabinet is provided with phase sequence protection, grounding protection, zero connection protection, overvoltage and overcurrent protection and lightning protection.
As a further scheme of the invention: and a high-power reactance and high-power EMI electronic filter is arranged in the filter cabinet.
As a further scheme of the invention: a reactive compensation controller, a capacitive contactor and 14% XC reactance are installed in the capacitor cabinet, a current sensor is installed in a circuit between the filter cabinet and the capacitive contactor, and the reactive compensation controller induces a circuit current to control the capacitive contactor through the current sensor.
As a further scheme of the invention: the frequency conversion cabinet can be divided into a plurality of frequency conversion cabinets according to the condition of electric equipment, and is connected in parallel by arranging a direct current bus.
As a further scheme of the invention: the super capacitor is connected in parallel with the direct current bus through the bidirectional DC/DC converter.
As a further scheme of the invention: the storage battery is connected with the direct current bus in parallel through the bidirectional DC/DC converter, and the bidirectional DC/DC converter controls charging and discharging of the storage battery and stabilizes the voltage of the bus.
As a further scheme of the invention: the battery is connected with solar charging device, and the battery can charge through solar charging device.
As a further scheme of the invention: the storage battery and the super capacitor can be connected with the direct current bus in parallel through the bidirectional DC/DC converter respectively.
As a further scheme of the invention: the star-delta voltage reduction energy-saving cabinet is connected with the motor by adopting two wiring modes of star and delta simultaneously, and one wiring mode is switched and selected to supply power to the motor through a double-throw switch arranged in the star-delta voltage reduction energy-saving cabinet.
As a further scheme of the invention: and current sensors are arranged in the frequency conversion cabinet, the star-delta voltage reduction energy-saving cabinet and the voltage boosting cabinet.
As a further scheme of the invention: the bidirectional DC/DC converter is in communication connection with the PLC control module.
As a further scheme of the invention: the PLC control module is in communication connection with the control center and can be remotely controlled through the control center.
Advantageous effects
1. The invention is realized by functions of soft start, speed regulation, power saving module, power factor improvement, reactive compensation, harmonic filtering and the like, is a special power-saving product, realizes the power-saving efficiency of about 30 percent through a whole set of scheme, and reduces the production cost.
2. The invention connects the high-power EMI electronic filter and the high-power reactor in series in the primary main loop through the filter cabinet, thereby eliminating harmonic waves, eliminating the interference of electronic equipment such as communication equipment, computer systems and the like, preventing data loss or crash, eliminating the misoperation of an electric automatic device and avoiding serious accidents. Meanwhile, the problems of overheating, vibration and noise of electrical equipment are solved, the service life of the equipment is prolonged, the phenomena of insulation aging, failure or equipment burning are avoided, and the increase of power loss of a power supply system is improved.
3. The capacitor cabinet realizes the step compensation by distributing the size of the compensation capacitor through the reactive compensation controller, can realize the compensation of the power factor even if the power consumption is very small, and prevents the harmonic waves from entering the compensation equipment by using the reactance of 14 percent XC so as to avoid the damage of the compensation equipment.
4. The invention is provided with the frequency conversion cabinet between the motor and the outgoing line main cabinet, increases the bus capacity by connecting a plurality of frequency conversion cabinets in parallel, improves the bus overload capacity, improves the impact of starting equipment on a power grid, controls the storage battery and/or the super capacitor to absorb/release electric energy through the bidirectional DC/DC converter, reduces the voltage fluctuation of the bus and saves the electric energy.
5. The star-delta voltage reduction energy-saving cabinet is connected with the motor in star and delta connection modes, star connection is used for voltage reduction starting when the motor is started, the motor load of equipment is monitored in real time through the current sensor, real-time operation parameters are recorded, star connection operation work is maintained when the motor load is light, the equipment is kept in a low-power operation state, the power consumption of the equipment is reduced, the star-delta voltage reduction energy-saving cabinet is switched to delta operation work when the load of the motor is heavy, the power of the equipment is improved, the stability of the operation speed of the equipment is guaranteed, the power consumption of the equipment is reduced, and the production efficiency of the equipment is improved.
6. The invention is provided with the booster cabinet between the motor and the outgoing line main cabinet, the booster cabinet is communicated with the main circuit of the main circuit high-power load, the motor load of the device is monitored in real time through the current sensor and real-time running parameters are recorded, the booster reduces the voltage when the motor load becomes light, the power consumption of the device is reduced, the purposes of energy saving and consumption reduction are achieved, the rotating speed of the motor is kept unchanged when the load becomes heavy, and the motor is kept not to be stopped, so that the influence of the power consumption and the stop of the device on production tasks is reduced, and the production cost of enterprises is reduced.
Drawings
FIG. 1 is a schematic view of the overall connection of the present invention.
Fig. 2 is a schematic diagram of the working principle of the filter cabinet of the present invention.
Fig. 3 is a schematic diagram of the working principle of the capacitor box of the present invention.
Fig. 4 is a schematic diagram of the working principle of the frequency conversion cabinet of the present invention.
Fig. 5 is a schematic diagram of the working principle of the star-delta voltage-reducing energy-saving cabinet.
Fig. 6 is a schematic diagram of the working principle of the booster cabinet of the present invention.
In FIGS. 1-6: 1-transformer main cabinet, 2-filter cabinet, 3-capacitor cabinet, 4-outgoing line main cabinet, 5-frequency conversion cabinet, 6-star-delta step-down energy-saving cabinet, 7-boost cabinet, 8-current sensor and 9-motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Referring to fig. 1-6, in an embodiment of the present invention, an intelligent energy-saving electrical complete cabinet includes a transformer main cabinet 1, a filter cabinet 2, a capacitor cabinet 3, an outlet main cabinet 4, a frequency conversion cabinet 5, a star-delta voltage-reducing energy-saving cabinet 6, a voltage-boosting cabinet 7, a current sensor 8, and a motor 9, where the filter cabinet 2, the capacitor cabinet 3, and the outlet main cabinet 4 are sequentially connected to the transformer main cabinet 1, and the outlet main cabinet 4 is connected to the electric equipment motor 9 through at least one of the frequency conversion cabinet 5, the star-delta voltage-reducing energy-saving cabinet 6, and the voltage-boosting cabinet 7.
Wherein: the transformer main cabinet 1 is provided with phase sequence protection, grounding protection, zero connection protection, overvoltage and overcurrent protection and lightning protection.
Wherein: the filter cabinet 2 is provided with a high-power reactance and a high-power EMI electronic filter, and the high-power EMI electronic filter and the high-power reactor are connected in series in a primary main loop, so that harmonic waves are eliminated, interference of electronic equipment such as communication equipment and a computer system is eliminated, data loss or crash is prevented, misoperation of an electric automatic device is eliminated, and serious accidents are avoided.
Wherein: install reactive compensation controller, capacitanc contactor and 14% XC reactance in the electric capacity cabinet 3, install current sensor 8 in the circuit between filtering cabinet and the capacitanc contactor, the reactive compensation controller passes through current sensor 8 induction circuit current control capacitanc contactor, and through the size of reactive compensation controller distribution compensation electric capacity, realize the ladder compensation, even very little power consumption also can realize the compensation of power factor.
Wherein: one or more frequency conversion cabinets 5 can be arranged according to the condition of the electric equipment during design and use, the frequency conversion cabinets are connected in parallel through the direct current buses, the capacity of the direct current buses is increased, the overload capacity of the direct current buses is improved, and electric energy is saved.
Wherein: the super capacitor is connected with the direct current bus in parallel through the bidirectional DC/DC converter, and when the direct current bus of the frequency converter is lower than or higher than the rated voltage, the super capacitor is controlled to absorb or release electric energy through the bidirectional DC/DC converter, so that the voltage of the direct current bus is increased or reduced, and the fluctuation of the voltage of the direct current bus is reduced.
Wherein: the storage battery is connected with the direct current bus in parallel through the bidirectional DC/DC converter, the bidirectional DC/DC converter controls charging and discharging of the storage battery, voltage of the direct current bus is adjusted through charging and discharging of the storage battery, voltage stability of the direct current bus is kept, and the power saving effect is achieved.
Wherein: the battery is connected with solar charging device, and the battery can charge through solar charging device.
Wherein: the star-delta voltage reduction energy-saving cabinet 6 is connected with the motor 9 by two connection modes of star type and triangle, one of the connection modes is selected to supply power for the motor 9 by switching a double-throw switch arranged in the star-delta voltage reduction energy-saving cabinet 6, star connection operation is maintained when the load of the motor 9 is light, equipment is kept in a low-power operation state, the power consumption of the equipment is reduced, the star-delta voltage reduction energy-saving cabinet is switched to triangle operation when the load of the motor 9 is heavy, the power of the equipment is improved, the stability of the operation speed of the equipment is guaranteed, the power consumption of the equipment is reduced, and the production efficiency of the equipment.
Wherein: current sensors 8 are arranged in the frequency conversion cabinet 5, the star-delta voltage reduction energy-saving cabinet 6 and the voltage boosting cabinet 7, and real-time monitoring and real-time operation parameter recording of the load of the equipment motor 9 are achieved through the current sensors.
Wherein: the bidirectional DC/DC converter is in communication connection with the PLC control module and receives the feedback control signal.
Wherein: the PLC control module is in communication connection with the control center and can be remotely controlled through the control center.
Example 1-high voltage is stepped down by a transformer, then is led into a transformer main cabinet 1, and is led to an outgoing line main cabinet 4 after passing through a filter cabinet 2 and a capacitor cabinet 3 in sequence, and is led to a high-power EMI electronic filter and a high-power reactor which are connected in series in the filter cabinet 2 to achieve the purposes of eliminating harmonic waves, eliminating the interference of electronic equipment such as communication equipment, computer systems and the like, preventing data loss or crash, eliminating the misoperation of an electric automatic device, avoiding serious accidents and improving the power loss of a power supply system, a reactive compensation controller and a capacitor contactor in the capacitor cabinet 3 are used for distributing the size of a compensation capacitor to realize step compensation, even small power consumption can realize the compensation of a power factor, 14 percent of XC reactance is used for resisting the harmonic waves to enter the compensation equipment to avoid the secondary damage of the compensation equipment, a motor 9 is connected with the outgoing line main cabinet 4 through a frequency conversion cabinet 5, and the real-time monitoring and the, when the load of the motor 9 becomes light, the current frequency is reduced through the frequency converter, the running speed of the motor 9 is kept, the power consumption of equipment is reduced, the purposes of energy conservation and consumption reduction are achieved, when the load becomes heavy, the current frequency is increased through the frequency converter, the running speed of the motor 9 is kept, the running stability of the equipment is kept, a plurality of frequency conversion cabinets can be arranged according to the number of production line equipment and the power consumption condition, the frequency conversion cabinets are connected in parallel through direct current buses, the direct current buses are respectively connected in parallel through bidirectional DC/DC converters and provided with storage batteries and/or super capacitors, the bidirectional DC/DC converters control the charging and discharging of the storage batteries and/or the super capacitors, the voltage of the direct current buses is kept stable through the charging and discharging adjustment of the storage batteries and/or the super capacitors, the influence.
Example 2-high voltage is stepped down by a transformer, then is led into a transformer main cabinet 1, and is led to an outgoing line main cabinet 4 after passing through a filter cabinet 2 and a capacitor cabinet 3 in sequence, and is led to a high-power EMI electronic filter and a high-power reactor which are connected in series in the filter cabinet 2, so that harmonic waves are eliminated, interference of electronic equipment such as communication equipment, computer systems and the like is eliminated, data loss or crash is prevented, misoperation of an electric automatic device is eliminated, serious accidents are avoided, power loss of a power supply system is improved, a reactive compensation controller and a capacitor contactor in the capacitor cabinet 3 are distributed with the size of a compensation capacitor, stepped compensation is realized, even small power consumption can realize compensation of a power factor, 14% XC reactance is used for resisting harmonic waves to enter the compensation equipment, secondary damage of the compensation equipment is avoided, and a motor 9 is connected with the outgoing line main cabinet 4, when the equipment motor 9 is started, the equipment motor is started by voltage reduction through star connection, real-time monitoring and running real-time parameter recording of the load of the equipment motor 9 are realized through the current sensor 8 in the running process of the motor 9, star connection running work is maintained when the load of the motor 9 is light, the equipment is kept in a low-power running state, the power consumption of the equipment is reduced, the triangular running work is switched to when the load of the motor 9 is heavy, the power of the equipment is improved, the running speed stability of the equipment is ensured, the power consumption of the equipment is reduced, and the production efficiency of the equipment is improved.
Embodiment 3-high voltage is stepped down by a transformer, then is led into a transformer main cabinet 1, and is guided to an outgoing line main cabinet 4 after passing through a filter cabinet 2 and a capacitor cabinet 3 in sequence, harmonic waves are eliminated through a high-power EMI electronic filter and a high-power reactor which are connected in series in the filter cabinet 2, interference of electronic equipment such as communication equipment and computer systems is eliminated, data loss or crash is prevented, misoperation of an electric automatic device is eliminated, serious accidents are avoided, power loss of a power supply system is improved, a reactive compensation controller and a capacitor contactor in the capacitor cabinet 3 are used for distributing the size of a compensation capacitor, step compensation is realized, power factor compensation can be realized even if very small power consumption is used, 14% of XC reactance is used for resisting harmonic waves to enter compensation equipment, secondary damage of the compensation equipment is avoided, a motor 9 is connected with the outgoing line main cabinet 4 through a booster cabinet 7, and real-time monitoring of the load of a motor And (3) running real-time parameter recording, reducing the voltage through the booster when the load of the motor is light, reducing the running power of the equipment motor 9, reducing the power consumption of the equipment, improving the voltage through the booster when the load of the motor becomes heavy, improving the running power of the equipment motor 9, and ensuring the stability of the running speed of the equipment, so that the power consumption of the equipment is reduced, and the production efficiency of the equipment is improved.
Example 5-for the purpose of further saving energy, in example 1, the battery may be connected to a solar charging device, the battery can be charged by the solar charging device, and after charging, the battery is fed back to the DC bus through the bidirectional DC/DC converter to supplement the voltage of the DC bus, thereby further saving energy.
Embodiment 4-according to the actual power consumption and production requirements of a factory production line, the connection scheme between the motor 9 and the outgoing line main cabinet 4 in embodiments 1-4 can be used in combination in multiple selection modes, and the intelligent energy-saving electric complete cabinet can realize remote monitoring and remote control through a control center.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several variations and modifications without departing from the concept of the present invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (10)
1. The utility model provides an energy-conserving electric complete sets cabinet of intelligence, its characterized in that includes transformer main cabinet (1), has connected gradually filtering cabinet (2), electric capacity cabinet (3) and the main cabinet (4) of being qualified for the next round of competitions on transformer main cabinet (1), and the main cabinet (4) of being qualified for the next round of competitions is connected with consumer motor (9) through at least one kind of cabinet body in inverter cabinet (5), star triangle step-down energy-saving cabinet (6) and the cabinet (7) that steps up.
2. The intelligent energy-saving electric complete cabinet according to claim 1, characterized in that: the transformer main cabinet (1) is provided with phase sequence protection, grounding protection, zero connection protection, overvoltage and overcurrent protection and lightning protection.
3. The intelligent energy-saving electric complete cabinet according to claim 1, characterized in that: and a high-power reactance and high-power EMI electronic filter is arranged in the filter cabinet (2).
4. The intelligent energy-saving electric complete cabinet according to claim 1, characterized in that: a reactive compensation controller, a capacitive contactor and 14% XC reactance are installed in the capacitor cabinet (3), a current sensor (8) is installed in a circuit between the filter cabinet and the capacitive contactor, and the reactive compensation controller induces a circuit current to control the capacitive contactor through the current sensor (8).
5. The intelligent energy-saving electric complete cabinet according to claim 1, characterized in that: the frequency conversion cabinets (5) are provided with a plurality of frequency conversion cabinets and are connected in parallel by arranging direct current buses.
6. An intelligent energy-saving electric complete cabinet according to claim 5, characterized in that: the super capacitor is connected in parallel with the direct current bus through the bidirectional DC/DC converter.
7. An intelligent energy-saving electric complete cabinet according to claim 5, characterized in that: the storage battery is connected in parallel with the direct current bus through the bidirectional DC/DC converter.
8. The intelligent energy-saving electric complete cabinet according to claim 1, characterized in that: the star-delta voltage reduction energy-saving cabinet (6) is connected with the motor (9) in two connection modes of star and triangle, and one connection mode is switched and selected to supply power to the motor (9) through a double-throw switch arranged in the star-delta voltage reduction energy-saving cabinet (6).
9. The intelligent energy-saving electric complete cabinet according to claim 1, characterized in that: current sensors (8) are arranged in the frequency conversion cabinet (5), the star-delta voltage reduction energy-saving cabinet (6) and the voltage boosting cabinet (7).
10. The intelligent energy-saving electric complete cabinet according to claim 7, characterized in that: the storage battery is connected with a solar charging device, and the storage battery can be charged through the solar charging device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011449084.9A CN112701695A (en) | 2021-03-12 | 2021-03-12 | Intelligent energy-saving electric complete cabinet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011449084.9A CN112701695A (en) | 2021-03-12 | 2021-03-12 | Intelligent energy-saving electric complete cabinet |
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| CN112701695A true CN112701695A (en) | 2021-04-23 |
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| CN202011449084.9A Withdrawn CN112701695A (en) | 2021-03-12 | 2021-03-12 | Intelligent energy-saving electric complete cabinet |
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2021
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