CN103187726A - Intelligent control system of electromagnet accurate regulating and controlling type power-saving device - Google Patents
Intelligent control system of electromagnet accurate regulating and controlling type power-saving device Download PDFInfo
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- CN103187726A CN103187726A CN201110456129XA CN201110456129A CN103187726A CN 103187726 A CN103187726 A CN 103187726A CN 201110456129X A CN201110456129X A CN 201110456129XA CN 201110456129 A CN201110456129 A CN 201110456129A CN 103187726 A CN103187726 A CN 103187726A
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Abstract
The invention provides an intelligent control system of an electromagnet accurate regulating and controlling type power-saving device. According to the electromagnet accurate regulating and controlling type power-saving device, an air switch, current sensors and a pulse width controller are installed on the upper portion of a machine box; a central processing unit (CPU), current amplifiers, a current comparison amplifier, a current digital amplifier, a timer, a temperature controller, a power amplifier, a low voltage power source and a sine wave forming device are installed in the middle of the machine box; the three current sensors are connected in parallel, the three current amplifiers are connected in parallel, the three current sensors are connected with the CPU after passing through the three current amplifiers and then passing through the current comparison amplifier; and the three current sensors are connected with the CPU after passing through the current amplifiers and then passing through the current digital amplifier, so that the intelligent control system of an energy-saving control loop is formed. According to the intelligent control system of the electromagnet accurate regulating and controlling type power-saving device, power consuming efficiency of the system is improved, and the double beneficial effects that electricity is saved and meanwhile harmonic pollution of a power supply grid can be eliminated are achieved.
Description
Technical field
The invention 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.In the GDP growth process of China, 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, namely 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.So 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, namely 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%, 10-135%) 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 etc.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.
Electromagnetism regulation and control be modern age power-saving technique developing a kind of for the electric current of regulation and control loads (motor) and the new method of voltage swing, 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 present invention 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.
This shows that the intelligent control system of above-mentioned existing electromagnetism accuracy controlling formula device obviously still has inconvenience and defective, and demands urgently further being improved in method and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and conventional method does not have appropriate method to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of intelligent control system of new electromagnetism accuracy controlling formula battery saving arrangement, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The objective of the invention is to, overcome the defective of the intelligent control system existence of existing electromagnetism accuracy controlling formula device, and provide a kind of intelligent control system of new electromagnetism accuracy controlling formula battery saving arrangement, technical problem to be solved is at the intelligent control system that a kind 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, regulate and control the power output of power supply continuously, realization is very suitable for practicality for the accurate coupling of the actual power consumption of all kinds of loads.
The object of the invention to solve the technical problems realizes by the following technical solutions.The described electromagnetism accuracy controlling formula battery saving arrangement that proposes according to the present invention 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; 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 object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The intelligent control system of aforesaid electromagnetism accuracy controlling formula battery saving arrangement, wherein said 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.
The present invention compared with prior art has tangible advantage and beneficial effect.As known from the above, for achieving the above object, the invention provides a kind of intelligent control system of electromagnetism accuracy controlling formula battery saving arrangement, 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 intelligent control system of the present invention is related, according to the load variations situation of power consumption equipment under the different operating state, it is the actual power amount of 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, amplification directly is sent to central controller CPU by the overcurrent digital amplifier to this signal through current amplifier, after the further analyzing and processing through central controller CPU, 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 sinusoidal wave former then, 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 software program of the specific temperature control of a cover and time measurement according to temperature control and the time requirement in this place.When equipment moved, temperature control and time measurement information can directly be sent to central controller CPU.After the central controller processing, namely 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) namely 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) namely 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 situations such as equipment generation overcurrent in service, overvoltage or three-phase imbalance, after then instantaneous this information soon of current sensor is amplified by current amplifier, after further handling, the electric current comparison amplifier is sent to central controller.Send out control information after the process central controller is handled again 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 that electromagnetic conversion is accurately controlled function, 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 the 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 intelligent control system of the present invention 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 relay indicating light and malfunction indicator lamp simultaneously.Himself power consumption is 1w during no-load running, and earth resistance is not more than 4Q.
By technique scheme, the intelligent control system of electromagnetism accuracy controlling formula battery saving arrangement of the present invention has following advantage and beneficial effect at least: 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 the 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.
In sum, electromagnetism accuracy controlling formula battery saving arrangement of the present invention 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, sinusoidal wave former are installed at the middle part of cabinet; Described three and the current sensor that connects are 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 by behind three and the current amplifier that connects, join by described current digital amplifier and described central controller CPU again, form the intelligent control system of energy-saving control loop.The present invention utilizes the mode of magnetic force and the continuous accuracy controlling output power of power supply of pulsewidth, makes the actual power consumption of the output power of power supply and load reach the effect of accurate coupling, realize to load with carrying power supply; It also can remove harmonic wave and surge in the electric power system automatically, for the operation of power-equipment provides high-quality power supply; Also can carry out multiple compensation to circuit, improve power factor, reduce line loss, increase capacity of trunk, improve system's power consumption efficiency, but obtain not only saves energy but also can eliminate the dual great beneficial effect of supply network harmonic pollution simultaneously.The present invention has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is basic circuit and the control principle figure of the related battery saving arrangement of intelligent control system.
1: air switch K1
2: current sensor IAV1, IBV1 and ICV1
3: current amplifier IAV2, IBV2 and ICV2
4: electric current comparison amplifier IETD
5: current digital amplifier ILTD
6: pulse width controller IGTC
7: sinusoidal wave former LP
8: power amplifier LQ
9: load (motor)
10: low-tension supply
11: central controller CPU
12: temperature controller TP
13: timer HT
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of intelligent control system, method, step, feature and the effect thereof of the electromagnetism accuracy controlling formula battery saving arrangement that foundation the present invention is proposed, describe in detail as after.
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 control components and parts, are made up of three parts.
First, be mainly information gathering, information processing and information control section comprise current sensor 2 IAV1, IBV1 and ICV1, current amplifier 3IAV2, IBV2 and ICV2, electric current comparison amplifier 4 IETD, current digital amplifier 5ILTD and central controller 11CPU; 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 11CPU, current digital amplifier 5ILTD and electric current comparison amplifier 4IETD and current amplifier 3IAV2, IBV2 and ICV2 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 1K.
Third part is temperature control system and the time measurement part of central controller controls, comprises central controller 11CPU, temperature controller 12TP and timer 13HT.
As shown in Figure 1, on cabinet top air switch 1 is installed, current sensor 2IAV1, IBV1 and ICV1, and pulse width controller 6IGTC; Current amplifier 3IAV2, IBV2 and ICV2 and electric current comparison amplifier 4IETD are installed, current digital amplifier 5ILTD, central controller 11CPU 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 2IAV1, IBV1 are connected with ICV2 with current amplifier 3IAV2, IBV2 respectively with ICV1, described current amplifier 3IAV2, IBV2 are connected with electric current comparison amplifier IETD with ICV2, and are connected with central controller 11CPU by electric current comparison amplifier 4IETD; Described current sensor 2IAV1, IBV1 and ICV1 respectively with current amplifier 3IAV2, IBV2 with after ICV2 is connected, IAV2, IBV2 and ICV2 with after current digital amplifier 5ILTD is connected, are connected with central controller 11CPU again again; Described pulse width controller 6IGTC is connected with sinusoidal wave former 7LP with central controller 11CPU respectively; Described sinusoidal wave former 7LP is connected with pulse width controller 6IGTC and power amplifier 8LQ respectively again, and sinusoidal wave former 7LP is connected with central controller 11CPU separately again simultaneously; Described temperature controller 12TP is connected with central controller 11CPU respectively again with timer 13HT; Described low-tension supply 10+5V ,+8V ,+15V is connected with timer 13HT with current digital amplifier 5ILTD, temperature controller 12TP with ICV2 and electric current comparison amplifier 4IETD with central controller 11CPU, current sensor 2IAV1, IBV1 and ICV1 and current amplifier 3IAV2, IBV2 respectively again.
Described central controller 11CPU 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 11CPU is connected with sinusoidal wave former 7LP by pulse width controller 6IGTC, 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 11CPU separately again.Three and the current sensor 2IAV1, the IBV1 that connect and ICV1 and three and the current amplifier 3IAV2, the IBV2 that connect are with after ICV2 is connected respectively, three and the current amplifier 3IAV2, the IBV2 that connect are connected with electric current comparison amplifier 4IETD respectively again with ICV2, and join by electric current comparison amplifier 4IETD and central controller 11CPU.Three and the current sensor 2IAV1, the IBV1 that connect and ICV1 and three and the current amplifier 3IAV2, the IBV2 that connect are with after ICV2 is connected respectively, three and the current amplifier 3IAV2, the IBV2 that connect are connected with central controller 11CPU respectively with after current digital amplifier 5ILTD is connected again with ICV2 again, form the intelligent control system of energy-saving control loop.
Sinusoidal wave former 7LP is connected with pulse width controller 6IGTC and power amplifier 8LQ, and pulse width controller 6IGTC and sinusoidal wave former 7LP are connected with central controller 11CPU 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.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
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, 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 with the electric current comparison amplifier by current amplifier, described current sensor be connected with central controller by the current digital amplifier simultaneously after current amplifier joins; Described sinusoidal wave former is connected with central controller by pulse width controller with power amplifier; Described temperature controller directly is connected with central controller 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;
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 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 electromagnetism accuracy controlling formula battery saving arrangement as claimed in claim 1, it is characterized in that described central controller 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 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.
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| CN201110456129XA CN103187726A (en) | 2011-12-30 | 2011-12-30 | Intelligent control system of electromagnet accurate regulating and controlling type power-saving device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201663447U (en) * | 2010-04-28 | 2010-12-01 | 洛阳沃德节电科技开发有限公司 | Intelligent control system of electromagnetic precise control type energy-saving device |
| CN102237682A (en) * | 2010-04-28 | 2011-11-09 | 洛阳沃德节电科技开发有限公司 | Intelligent energy-saving control system and temperature and time control systems for electromagnetic precise regulation and control type electricity-saving device |
| CN102237683A (en) * | 2010-04-28 | 2011-11-09 | 洛阳沃德节电科技开发有限公司 | Intelligent control system for electromagnetic precise control type electricity-saving device |
-
2011
- 2011-12-30 CN CN201110456129XA patent/CN103187726A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201663447U (en) * | 2010-04-28 | 2010-12-01 | 洛阳沃德节电科技开发有限公司 | Intelligent control system of electromagnetic precise control type energy-saving device |
| CN102237682A (en) * | 2010-04-28 | 2011-11-09 | 洛阳沃德节电科技开发有限公司 | Intelligent energy-saving control system and temperature and time control systems for electromagnetic precise regulation and control type electricity-saving device |
| CN102237683A (en) * | 2010-04-28 | 2011-11-09 | 洛阳沃德节电科技开发有限公司 | Intelligent control system for electromagnetic precise control type electricity-saving device |
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Application publication date: 20130703 |