CN201663447U - Intelligent control system of electromagnetic precise control type energy-saving device - Google Patents

Intelligent control system of electromagnetic precise control type energy-saving device Download PDF

Info

Publication number
CN201663447U
CN201663447U CN2010201720806U CN201020172080U CN201663447U CN 201663447 U CN201663447 U CN 201663447U CN 2010201720806 U CN2010201720806 U CN 2010201720806U CN 201020172080 U CN201020172080 U CN 201020172080U CN 201663447 U CN201663447 U CN 201663447U
Authority
CN
China
Prior art keywords
amplifier
power
current
central controller
controller cpu
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010201720806U
Other languages
Chinese (zh)
Inventor
何勋碧
王遂德
王亚楠
黄君佳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LUOYANG VOLT POWER TECHNOLOGY DEVELOPMENT Co Ltd
Original Assignee
LUOYANG VOLT POWER TECHNOLOGY DEVELOPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LUOYANG VOLT POWER TECHNOLOGY DEVELOPMENT Co Ltd filed Critical LUOYANG VOLT POWER TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN2010201720806U priority Critical patent/CN201663447U/en
Application granted granted Critical
Publication of CN201663447U publication Critical patent/CN201663447U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/40Arrangements for reducing harmonics

Landscapes

  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The utility model provides an intelligent control system of an electromagnetic precise control type energy-saving device. The electromagnetic precise control type energy-saving device is provided with an air switch, current sensors and a pulse width controller at the upper part of a chassis; a central controller CPU, current amplifiers, a current comparison amplifier, a current digital amplifier, a timer, a temperature controller, a power amplifier, a low-voltage power supply and a sine wave shaper are mounted at the middle part of the chassis; the three current sensors which are connected in parallel are connected with the central controller CPU after passing through three current amplifiers which are connected in parallel; the three current sensors which are connected in parallel are connected with the central controller CPU after passing through the three current amplifiers which are connected in parallel and further passing through the current digital amplifier, thereby constituting the intelligent control system of an energy-saving control loop. The intelligent control system leads the service power of a power supply and the actual consumed power of a load to achieve the effect of precise matching by utilizing the way of magnetic force and pulse width continuous precise control of the output power of the power supply, thus realizing the power supply according to the load; the intelligent control system also can eliminate harmonic and surge in a power supply system automatically, so as to provide the high-quality power supply for operating a power device, and also can carry out multi-compensation on a circuit, improve the power factor, reduce the circuit loss, increase the circuit capacity, improve the power utilization efficiency of the system, thus obtaining the double significant benefits of saving electric energy and simultaneously eliminating the harmonic pollution in a power supply network.

Description

The intelligent control system of electromagnetism accuracy controlling formula battery saving arrangement
Technical field
The utility model belongs to the field of energy-saving technology of electric power system medium power equipment and electric equipment operation, a kind of intelligent control system of electromagnetism accuracy controlling formula battery saving arrangement specifically is provided, is used for the economize on electricity control of motor, water pump, blower fan and electrical lighting system and electric equipment aspect.
Background technology
In the evolution of China's modernization construction at present, the development of electric power has become one of deciding factor of socio-economic development.GDF in China, in the propagation process, therefore the too high China's rapid economy development that had influence on of the energy consumption of per GDP develops the basic principle that electric power and saves energy will become China's long-run development from now on.
At present, all exist more energy waste phenomenon from electrical network conveying, block supply to the terminal temperature difference group.The first, the power station is the circuit loss of avoiding in the long distance power delivery process, transmit with higher voltage, reaches rated voltage to guarantee terminal temperature difference, causes virtual voltage often to be higher than the rated voltage of user's request.Second in the scope of block supply, promptly in the Mo Duan customer group, because the situation difference that goes into operation, has only the user of 70-80% carrying 100% supply of electric power usually, causes the dispensing capacity of electric power further superfluous.The 3rd, motor for a certain concrete unit, equipment operate as normal when guaranteeing peak of power consumption often require the output voltage of transformer to be higher than the rated voltage of motor, and because the lazy weight that goes into operation of most of unit causes the further surplus of its rated capacity again.Therefore in the running of this supply network, usually cause the power consumption of motor and the serious energy between the power supply amount of power supply state that do not match.Especially when motor is in zero load, underloading and moderate load, the situation of not matching of this energy will be more outstanding.
In order to solve the waste of energy problem of above-mentioned power consumption equipment, promptly begun Research on energy saving from 1840s abroad, China has also carried out corresponding power-saving technology research in the initial stage sixties in last century.Experienced the development in 60 years, up to the present, polytype power-saving technology and energy-saving device have successively appearred, as capacitance compensation, star angle conversion voltage regulation, single-circuit transformer step-down, silicon-controlled voltage regulation, computer control step-down, reactor pressure regulation, inversion pressure regulation, harmonic wave and a series of power-saving techniques such as surge current inhibition and frequency control.But up to the present, these a series of power-saving techniques require very inapplicable for many running status economize on electricitys of motor, as be operated in heavy duty, fully loaded and overload condition following time (its load is respectively 80-90%, 90-100%, 10 and foretells 135%) when motor, when the power factor of motor operation is higher (0.65-0.98), when constant load and permanent torque motor are operated in heavy duty, fully loaded and overload condition following time or the like.And the quantity of the motor of this operating state and operation conditions accounts for society and has about 80% of motor total amount, so power-saving technology must be sought new breakthrough.
The electromagnetism regulation and control are the developing a kind of new methods that are used to regulate and control the electric current and the voltage swing of load (motor) of power-saving technique in modern age, and the reliability of its regulation and control and accuracy have determined the power saving rate of energy-saving device and the range size that is applicable to the economize on electricity field.Its basic principle is, utilizes both effects of restricted electric current of inductance, the characteristic of consumed power not again, and with the critical component of inductance as power conversion, when power connection, inductance converts the electric energy that absorbs to magnetic field energy and is stored in the magnetic field.In certain running section, magnetic field energy rises along with the increase of electric current, and reaches maximum, and in other running section, magnetic field energy progressively reduces again, and quickly falls to zero, and the original magnetic field energy that stores is returned power supply again in the inductance.The utility model utilizes this principle exactly, by the line design of science, and the accurate Calculation of various operational factors, in the intellectuality control of computer, realized effective power saving rate of battery saving arrangement.
Summary of the invention
The purpose of this utility model is the defective at above-mentioned existing power-saving technique, a kind of intelligent control system of electromagnetism accuracy controlling formula battery saving arrangement is provided, be used for motor, water pump, blower fan and electrical lighting system and electric equipment aspect, utilize the accuracy controlling method of electromagnetism, the power output of regulation and control power supply realizes the accurate coupling for the actual power consumption of all kinds of loads continuously.
The technical scheme taked of the utility model is to achieve these goals: a kind of intelligent control system of electromagnetism accuracy controlling formula battery saving arrangement, and described electromagnetism accuracy controlling formula battery saving arrangement is described to be equipped with air switch, current sensor and pulse width controller on cabinet top; Central controller CPU, current amplifier, electric current comparison amplifier, current digital amplifier, timer, temperature controller, power amplifier and low-tension supply are installed at the middle part of cabinet; In the bottom of cabinet sinusoidal wave former is installed; Wherein, described current sensor is connected with central controller CPU with the electric current comparison amplifier by current amplifier, described current sensor be connected with central controller CPU by the current digital amplifier simultaneously after current amplifier joins; Described sinusoidal wave former is connected with central controller CPU by pulse width controller with power amplifier; Described temperature controller directly is connected with central controller CPU respectively with timer, and forms temperature control and time controlled system in the energy-saving control loop; Described low-tension supply is connected with central controller CPU; Described three and the current sensor that connects by behind three and the current amplifier that connects again by joining with described central controller CPU behind the electric current comparison amplifier; Three and the current sensor that connects join by described current digital amplifier and described central controller CPU by three and the current amplifier that connects again, form the intelligent control system of energy-saving control loop.
The battery saving arrangement that the utility model intelligent control system is related, according to the load variations situation of power consumption equipment under the different operating state, it is the actual power amount of the instantaneous power consumption and the power supply of power consumption equipment, utilize the height intelligent control system of computer, control by to the power output of the pulse width controller in the main circuit power supply of three phase mains, sinusoidal wave former and power amplifier makes power supply amount of power supply and load power consumption reach the effect of accurate coupling.When the sinusoidal wave former of electric current process, through its inner inductor filter and the energy exchange in the electromagnetic conversion, electromagnetic conversion is because not produce power loss, and do not produce new surge in this process and disturb and harmonic pollution, so when the sinusoidal wave former of electric current process, the output of its electric current and voltage is the sinusoidal waveform of standard, not only can not cause new harmonic pollution to electrical network, but also can be eliminated the original harmonic wave of electrical network, power supply is optimized, realizes high-quality power supply output.Aspect in the higher motor applications of current economize on electricity difficulty some, as motor in heavy duty, during full-load run, and employing turbine type, the blower fan of Luo rod-type and piston type working method, water pump, compressor etc. in service, the process of its economize on electricity control is: when load reduces, the K3 switch connection, the induced current of current sensor reduces, this signal amplifies after the overcurrent digital amplifier directly is sent to central controller CPtJ through current amplifier, after the further analyzing and processing through central controller CPIj, send out the through sinusoidal wave former of control information, corresponding the reducing of output magnetic force of the magnetic force control section in the then sinusoidal wave former, corresponding the reducing of power output in the sinusoidal wave former of while, and this quantity that reduces can reach higher accuracy and precision, makes the power output of power supply and the actual power consumption of load reach accurate coupling.Otherwise, when the electric current in the load increases, the power output in the sinusoidal wave former is increased, can make motor when high load condition, make output power of power supply and load actual power consumption reach accurate coupling equally, thereby reach power savings preferably.
When load is the motor of some special running status and particular job mode, as motor of the permanent torque motor under centrifugal water pump, blower fan, compressor, the high load condition and high capacity and High Power Factor etc., this can't realize effective power savings under present existing power-saving technique condition.The economize on electricity control procedure of this class motor is: the K3 switch disconnects, rate is during through sinusoidal wave former, utilize the function of its electromagnetic conversion and accuracy controlling, not only can make the actual power consumption of power output and load reach accurate coupling, but also can eliminate substantially or most of harmonic pollution and other interference that in pulse-width modulation process, produces of eliminating, further reduced energy resource consumption, thus the power savings that can obtain equally
When load had the local space of particular requirement and place for some to temperature, then temperature controller and timer can be set the specific temperature control of a cover and the software program of time measurement according to the temperature control and the time requirement in this place.When equipment operation, temperature control and time measurement information can directly be sent to central controller CPU.After the central controller processing, promptly send out control information to temperature being controlled the place that particular requirement is arranged, when the temperature when this place is higher than (or being lower than) a certain particular value, then refrigerating system (or heating system) promptly begins this place freeze (or heating), when its temperature is lower than (or being higher than) a certain particular value, then refrigerating system (or heating system) promptly stops refrigeration (or heating), along with the change of temperature controlling mode, can make load reach better power savings.In this course, timer can be to the time of refrigeration or heating, accumulative total refrigeration or heating time, the dwell time of refrigeration or heating, and year round cooling or cumulative time of adding carry out comprehensive record.
When situation such as overcurrent, overvoltage or three-phase imbalance takes place in the equipment operation when, then current sensor is instantaneous be about to this information and amplify by current amplifier after, after the electric current comparison amplifier is further handled, be sent to central controller.Send out control information after the process central controller is handled once more and arrive K2, then k2 disconnects, and equipment will quit work immediately, and control rate reaches 10 milliseconds, and the simultaneous faults indicator light is bright, can make motor in time obtain better protection.The inductance of sinusoidal wave former has adopted special winding mode and has had the excellent balance performance and increase the method for attachment of joining of the accurate controlled function of electromagnetic conversion, used the magnetic force line cutting device again, make the big I of magnetic force regulate and control according to the control of central controller CPU, thereby when bearing power is increased, magnetic force increases, when bearing power reduced, magnetic force reduced, and can guarantee that the power output of sinusoidal wave former and the actual power consumption of load reach accurate coupling.Utilize simultaneously electromagnetic conversion and inductive energy storage principle again, adopt special compensated line and additional device, by accurate Calculation to the various operational factors in this system, realized the bidirectional compensating function of battery saving arrangement upper and lower side, not only the power factor of supply line is carried out reactive power compensation, also can the power factor of the power consumption equipment of load end be compensated simultaneously, improved power factor, reduce the line consumption, increase capacity of trunk, raising system power consumption efficiency realized the precision combination of electromagnetic conversion and Computerized intelligent control, but obtained not only saves energy but also can eliminate the dual great effect of supply network harmonic pollution simultaneously.
The battery saving arrangement that the utility model intelligent control system is related, the required power supply of itself operation then be miniature transformer provide+5V ,+8V ,+DC power supply of 15V, can provide low-tension supply to central controller CPU, current amplifier, electric current comparison amplifier, current digital amplifier, timer, temperature controller and corresponding work indicator light and malfunction indicator lamp simultaneously.Himself power consumption is 1w during no-load running, and earth resistance is not more than 4Q.
The beneficial effect of the battery saving arrangement that the utility model intelligent control system is related is: by the intelligent control of the computer height of electronic circuit board, pulse width controller, sinusoidal wave former, the continuous output voltage of power amplifier and the control of electric current have been realized, make and to be added in the variation of the actual load that electric current on the power consumption equipment and voltage can follow power consumption equipment in real time and to be regulated continuously, when the actual load of power consumption equipment was very little, the electric current and the voltage that add thereon also can drop to very little.Otherwise when load increased, the supply power voltage of power supply and electric current also can increase thereupon, simultaneously by the intelligent control system of electronic circuit board, made the output power of the actual power consumption of power consumption equipment and power supply reach the effect of accurate coupling.In this intelligentized control procedure, accurate Calculation and the careful reasonable disposition of auxiliary element by various running parameters, realized bidirectional compensating function to the battery saving arrangement top and bottom, improve the power factor of circuit and power consumption equipment, realized the rational science combination of electromagnetism accuracy controlling, pulse width control and Computerized intelligent control.The major loop of this energy-saving device does not contain any electronic device, therefore reliability is very high, electrical network is not produced any harmonic pollution, can also eliminate original harmonic pollution in the mains supply system substantially, realized the reasonable combination of the high-quality power supply of power savings and mains supply preferably, compare with present existing other power-saving techniques, have unique technique characteristics and advantage, this battery saving arrangement can also be applicable to all using electricity systems.
Description of drawings
Fig. 1 is the basic circuit and the control principle figure of the related battery saving arrangement of intelligent control system.
Among the figure: 1 air switch K1,2 current sensor worker AVI, IBVI and worker CVI, 3 current amplifier worker AV2, worker .BV2 and worker CV2,4 electric current comparison amplifier IETD, 5 current digital amplifier ILTD, 6 pulse width controller worker GTC, 7 sinusoidal wave former LP, 8 power amplifier LQ, 9 loads (motor), 10 low-tension supplies, 11 central controller CPI.J, 12 temperature controller TP, 13 timer HT.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.
As shown in Figure 1, a kind of intelligent control system of electromagnetism accuracy controlling formula battery saving arrangement, related battery saving arrangement comprise cabinet and its inner polynary combination series controlling parts, are made up of three parts.
First, be mainly information gathering, information processing and information Control part comprise current sensor 2IAVI, worker BVI and ICvl, current amplifier 3 worker AV2, worker BV2 and worker CV2, electric current comparison amplifier 4IETD, current digital amplifier 5 worker LTD and central controller 11CPI.J; Secondly be the power circuit part, control power circuit part branch comprises+5V ,+8V ,+low-tension supply 10 of 15V, directly supply with the DC power supply of central controller 11CPI.J, current digital amplifier 5 worker LTD and electric current comparison amplifier 4 worker ETD and current amplifier 3 worker AV2, worker BV2 and worker CV2 and corresponding indicator light.
Second portion is the power pack of computer-controlled motor circuit, comprises pulse width controller 6IGTC, sinusoidal wave former 7LP and power amplifier 8LQ and air switch IK worker.
Third part is the temperature control system and the time measurement part of central controller controls, comprises central controller 11CPI_J, temperature controller 12TP and timer 13HT.
As shown in Figure 1, air switch 1 is installed, current sensor 2 worker AVI, worker BVI and worker CVI, and pulse width controller 6IGTC on cabinet top; Current amplifier 3 worker AV2, worker BV2 and worker CV2 and electric current comparison amplifier 4 worker ETD are installed, current digital amplifier 5ILTD, central controller 11CP[J at the middle part of cabinet, temperature controller 12TP, timer 13HT, power amplifier 8LQ, low-tension supply 10+5V ,+8V ,+the 15V power supply; Sinusoidal wave former 7LP is installed in the bottom of cabinet.Wherein, described current sensor 2IAVI, IBVI are connected with ICV2 with current amplifier 3 worker AV2, IBV2 respectively with worker CVI, described current amplifier 3IAV2, worker BV2 are connected with electric current comparison amplifier worker ETD with worker CV2, and are connected with central controller 11CPI.J by electric current comparison amplifier 4 worker ETD; (after iV2 was connected, worker AV2, worker BV2 and worker CV2 with after current digital amplifier 5ILTD is connected, were connected with central controller 1I CPU again again with current amplifier 3 worker AV2, worker BV2 and worker respectively for described current sensor 2 worker AVI, IBVI and worker CVI; Described pulse width controller 6 worker GTC are connected with sinusoidal wave former 7LP with central controller 11CPLJ respectively; Described sinusoidal wave former 7LP is connected with pulse width controller 6 worker GTC and power amplifier 8LQ respectively again, and sinusoidal wave former 7LP is connected with central controller 11CP[j separately again simultaneously; Described temperature controller 12TP is connected with central controller 11CP[J respectively again with timer 13HT; Described low-tension supply 10+5V ,+8V ,+15V is connected with timer 13HT with current digital amplifier 5 worker LTD, temperature controller 12TP with ICV2 and electric current comparison amplifier 4 worker ETD with central controller 1I CP[J, current sensor 2IAVI, IBVI and worker CVI and current amplifier 3 worker AV2, IBV2 respectively again.
Described central controller 11CP[J is by power circuit, constitute with the voltage and current control circuit that links to each other with the amplifier tube base stage with its signal amplification circuit that is coupled, described central controller 11CPIJ is connected with sinusoidal wave former 7LP by pulse width controller 6 worker GTC, sinusoidal wave former 7LP is connected with output loading 9M (motor) by power amplifier 8LQ again, and magnetic force control and the adjusting part of sinusoidal wave former 7LP are connected with central controller 1I CP[J separately again.Three and the current sensor 2 worker AVI, the worker BVI that connect and worker CVI and three and the current amplifier 3IAV2, the worker BV2 that connect are with after worker CV2 is connected respectively, three and the current amplifier 3 worker AV2, the worker BV2 that connect are connected with electric current comparison amplifier 4 worker ETD respectively again with ICV2, and join by electric current comparison amplifier 4IETD and central controller 11CPLJ.Three and the current sensor 2IAVI, the worker BVI that connect and worker CVI and three and the current amplifier 3 worker AV2, the worker BV2 that connect are with after ICV2 is connected respectively, three and the current amplifier 3 worker AV2, the worker BV2 that connect are connected with central controller 11CP[J respectively with after current digital amplifier 5ILTD is connected again with worker CV2 again, form the intelligent control system of energy-saving control loop.
Sinusoidal wave former 7LP is connected with pulse width controller 6 worker GTC and power amplifier 8LQ, and pulse width controller 6IGTC and sinusoidal wave former 7LP are connected with central controller 11CPtJ respectively; Sinusoidal wave former 7LP is connected with load M (motor) by power amplifier 8LQ, forms the energy-saving control loop of the power-control section of three phase mains supply line.
Constant at original line construction, only change under the situation of the rated value of electronic devices and components and the specification that is connected lead the control of can in the electric power system of 220V, 380V, 660V, 1140V, 3000V, 6000V, 9000V, 10000V, 13800V and 15000V, economizing on electricity of its operating voltage.

Claims (2)

1. the intelligent control system of an electromagnetism accuracy controlling formula battery saving arrangement, described electromagnetism accuracy controlling formula battery saving arrangement is equipped with air switch, current sensor and pulse width controller on cabinet top; Central controller CPU, current amplifier, electric current comparison amplifier, current digital amplifier, timer, temperature controller, power amplifier and low-tension supply are installed at the middle part of cabinet; In the bottom of cabinet sinusoidal wave former is installed; Wherein, described current sensor is connected with central controller CPU with the electric current comparison amplifier by current amplifier, described current sensor be connected with central controller CPU by the current digital amplifier simultaneously after current amplifier joins; Described sinusoidal wave former is connected with central controller CPU by pulse width controller with power amplifier; Described temperature controller directly is connected with central controller CPU respectively with timer, and forms temperature control and time controlled system in the energy-saving control loop; Described low-tension supply is connected with central controller CPU; It is characterized in that: described three and the current sensor that connects by behind three and the current amplifier that connects again by joining with described central controller CPU behind the electric current comparison amplifier; Three and the current sensor that connects join by described current digital amplifier and described central controller CPU by three and the current amplifier that connects again, form the intelligent control system of energy-saving control loop.
2. the intelligent control system of a kind of electromagnetism accuracy controlling formula battery saving arrangement according to claim 1, it is characterized in that: described central controller cPU is by power circuit, constitute with the voltage and current control circuit that links to each other with the amplifier tube base stage with its signal amplification circuit that is coupled, and described central controller CPU is connected the energy-saving control loop that power amplifier is formed the power-control section of three power supply lines by pulse width controller with sinusoidal wave former.
CN2010201720806U 2010-04-28 2010-04-28 Intelligent control system of electromagnetic precise control type energy-saving device Expired - Fee Related CN201663447U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201720806U CN201663447U (en) 2010-04-28 2010-04-28 Intelligent control system of electromagnetic precise control type energy-saving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201720806U CN201663447U (en) 2010-04-28 2010-04-28 Intelligent control system of electromagnetic precise control type energy-saving device

Publications (1)

Publication Number Publication Date
CN201663447U true CN201663447U (en) 2010-12-01

Family

ID=43233866

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201720806U Expired - Fee Related CN201663447U (en) 2010-04-28 2010-04-28 Intelligent control system of electromagnetic precise control type energy-saving device

Country Status (1)

Country Link
CN (1) CN201663447U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103187726A (en) * 2011-12-30 2013-07-03 洛阳沃德节电科技开发有限公司 Intelligent control system of electromagnet accurate regulating and controlling type power-saving device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103187726A (en) * 2011-12-30 2013-07-03 洛阳沃德节电科技开发有限公司 Intelligent control system of electromagnet accurate regulating and controlling type power-saving device

Similar Documents

Publication Publication Date Title
CN201742107U (en) Power quality regulating device based on stored energy of super capacitor
CN201504219U (en) Energy-storage pumping unit power saving device with super capacitor
CN101950974A (en) Electric energy quality regulating system based on energy storing of super capacitor
WO2020057423A1 (en) Electric drilling rig/workover rig microgrid system based on flywheel energy storage technology
CN204416995U (en) A kind of service machine power management system
CN101777762A (en) Frequency converting and energy saving device of oil pumping machine
CN201528205U (en) Low-voltage intelligent reactive power compensation device
CN201663447U (en) Intelligent control system of electromagnetic precise control type energy-saving device
CN201663446U (en) Intelligent energy-saving control system and temperature and time control system of electromagnetic accurate regulating and controlling type electricity-saving device
CN102237682A (en) Intelligent energy-saving control system and temperature and time control systems for electromagnetic precise regulation and control type electricity-saving device
CN201413998Y (en) Intelligent electromagnetic precise regulation and control type efficient electricity-saving device
CN101447720A (en) Novel tri-power, efficient, energy-saving three-phase asynchronous motor used for oil extractor
CN201238202Y (en) Independent power station with charging/discharging, storage and distribution, power supply and consumption function for non-parallel wind-solar power supply
CN102237683A (en) Intelligent control system for electromagnetic precise control type electricity-saving device
CN201430569Y (en) Motor load adjusting device
CN201682281U (en) Intelligent duplex magnetic control power saving device
CN204349549U (en) A kind of for the motor-driven fast charging and discharging management system of workover rig
CN103187726A (en) Intelligent control system of electromagnet accurate regulating and controlling type power-saving device
CN106100489A (en) A kind of energy-saving control method
CN202050384U (en) Real-time multichannel accuracy control electricity-saving device
CN205864318U (en) A kind of contactor energy-saving circuit
Wang et al. Research on Energy Saving Principle of Pumping Unit Driven by Wind Turbine
CN204886196U (en) Intelligently move muddy SVG
CN201611866U (en) Power-saving control cabinet of oil extractor
CN201813347U (en) Energy saver of electromotor for oil field and oil well

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101201

Termination date: 20130428