CN105958500A - Flexible load autonomous controller capable of sensing power network voltage reduction and control method of controller - Google Patents
Flexible load autonomous controller capable of sensing power network voltage reduction and control method of controller Download PDFInfo
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- CN105958500A CN105958500A CN201610431854.4A CN201610431854A CN105958500A CN 105958500 A CN105958500 A CN 105958500A CN 201610431854 A CN201610431854 A CN 201610431854A CN 105958500 A CN105958500 A CN 105958500A
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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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
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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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/10—The network having a local or delimited stationary reach
- H02J2310/12—The local stationary network supplying a household or a building
- H02J2310/14—The load or loads being home appliances
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
- Y04S20/244—Home appliances the home appliances being or involving heating ventilating and air conditioning [HVAC] units
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a flexible load autonomous controller capable of sensing power network voltage reduction. The controller comprises a power network voltage active sensing module, a microcontroller and a flexible load control execution module, wherein the flexible load control execution module comprises a solid-state relay module, a socket body and an infrared remote controller; and the microcontroller controls a power-on or power-off state of the socket body through the solid-state relay module. The invention furthermore discloses a control method of the flexible load autonomous controller capable of sensing the power network voltage reduction. The microcontroller monitors a power network voltage value in real time through the power network voltage active sensing module; and during the power network voltage reduction, the microcontroller can flexibly reduce household loads according to different power network voltage reduction degrees. A solid-state relay is adopted for performing adjustment, and a flexible reduction action can be finished within a time of 1ms, so that a power network dispatching center is effectively assisted in power network load adjustment in first time and stable power network voltage is maintained.
Description
Technical field
The present invention relates to the flexible load autonomous controller that a kind of perception line voltage declines, further relate to the control method of the flexible load autonomous controller that a kind of perception line voltage declines, belong to Power System Flexible spatial load forecasting technical field.
Background technology
In recent years, along with day by day highlighting and the minimizing day by day of tradition Coal Energy Source of problem of environmental pollution, wind energy, solar energy distributed clean energy resource proportion increasing, but there is the deficiencies such as poor controllability, intermittent time be indefinite in distributed clean energy resource, thus national grid constantly improves electric network composition, being changed into large-scale receiving end electrical network by self-centered regional power grid, which is capable of electric power resource scheduling in China so that electric energy is efficiently deployed.But also it is faced with many new problems, such as: trans-regional power transfer corridors is stopped transport suddenly because of various accidental causes, directly the safe and stable operation of large receiving-end grid will be caused bigger impact.Therefore, the how effectively and rapidly flexible customer charge that adjusts when electrical network power supply capacity generation large change, amplitude peak ground maintains line voltage and frequency stable to become new problem in the urgent need to address.Therefore, in the urgent need to making full use of technology based on customer charge flexible control, the novel autonomous Flexibility Control Technique of research user oriented device end, the power grid operation under interconnecting on a large scale for electric power provides safeguard.
Summary of the invention
It is an object of the invention to overcome deficiency of the prior art, the flexible load autonomous controller that a kind of perception line voltage declines is provided, solves in prior art because the meritorious underpower of electrical network supply causes the technical problem that mains frequency declines, mains frequency ability of regulation and control is poor.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is: the flexible load autonomous controller that perception line voltage declines, including be linked in sequence: line voltage active perception module, microcontroller and flexible load control to perform module;Described flexible load controls to perform module and includes: solid state relay module, jack body and IR remote controller, and described microcontroller controls energising or the power-off of jack body by solid state relay module;Described IR remote controller is connected with domestic air conditioning signal, and described jack body electrically connects with other household loads in addition to domestic air conditioning;
Described line voltage active perception module monitors line voltage in real time, and microcontroller judges whether cut off the supply of electric power of jack body or reduced the electric power of domestic air conditioning by IR remote controller according to line voltage fall.
Described line voltage active perception module includes being linked in sequence: for gathering the voltage transformer of electrical network phase voltage, for filtering the low pass filter of harmonic wave interference and for sinusoidal ac signal is converted to the RMS conversion module of direct current useful signal;
Power network signal is converted to low pressure sinusoidal signal by voltage transformer, low-pass filtered device filters the harmonic signal in low pressure sinusoidal signal, output is to RMS conversion module, the sinusoidal ac signal of RMS conversion module low pass filter output is converted to direct current useful signal, and is sent to microcontroller.
Described low pass filter uses integrated operational amplifier AD648 to build low-pass active filter circuit, and-3dB the cut-off frequency of active low-pass filter is 63.7Hz.
Described microcontroller uses AVR single chip.
Other household loads described include: purely resistive load and other flexible loads;
Described purely resistive load includes: electric heating device, water heater, electric heating fan and electric heater;
Other flexible loads described include: domestic lighting load, television set, DVD, domestic acoustics;
Described microcontroller, by output PWM square wave, regulates the payload of purely resistive load in the way of chopper control;Control whether other flexible loads access electrical network by the power on/off controlling solid state relay module.
Another object of the present invention is to the control method of the flexible load autonomous controller providing a kind of perception line voltage to decline, when microcontroller by line voltage active perception module perceive line voltage less than rated voltage 95% and more than 90% time, described microcontroller passes through design temperature and the difference of current room temperature of IR remote controller soft readjustment domestic air conditioning, thus flexibility reduces domestic air conditioning load;Meanwhile, microcontroller reduces the purely resistive load being connected on jack body by solid state relay module flexibility;
When microcontroller by line voltage active perception module perceive line voltage less than rated voltage 90% time, microcontroller immediately by IR remote controller close domestic air conditioning load;Turn off purely resistive load and other flexible loads by solid state relay module simultaneously.
Compared with prior art, the present invention is reachedBeneficial effectIt is:
1, can the supply voltage of real-time perception electrical network, when network re-active power not enough and when causing line voltage to decline, it can reduce domestic air conditioning load by IR remote controller flexibility, can pass through solid state relay module flexibility reduction purely resistive load;
2, when line voltage declines by a big margin, other flexible loads can be cut away by solid state relay module, thus ensure stablizing of line voltage and frequency, it is ensured that power grid operation, when line voltage recovers, flexible load can progressively be returned to initial condition by it;
3, household load flexible control is realized with the external form of socket, it is beneficial to transformation and popularization and application, and excavates household electricity family and participate in stabilization of power grids regulation, it is achieved flexibility becomes more meticulous spatial load forecasting, promote the regulating and controlling voltage ability of electrical network, keep stablizing of operation of power networks.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of the flexible load autonomous controller that the perception line voltage that the present invention provides declines.
Fig. 2 is the circuit diagram of line voltage active perception module in Fig. 1.
Fig. 3 is the connection circuit diagram that in Fig. 1, microcontroller and flexible load control to perform module.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.Following example are only used for clearly illustrating technical scheme, and can not limit the scope of the invention with this.
As it is shown in figure 1, the flexible load autonomous controller that a kind of perception line voltage declines, mainly include three parts: line voltage active perception module, microcontroller and flexible load control to perform module.
The core controller of microcontroller uses AVR single chip, and the input port of AVR single chip is analogue signal input port, and delivery outlet is on-off model delivery outlet.AVR single chip is ATmega16 single-chip microcomputer, and this single-chip microcomputer is to be developed by Atmel company of Italy, is 8 reduced instruction set computer single-chip microcomputers of a superior performance, and it has been internally integrated 10 high-precision adcs.
Line voltage active perception module includes being linked in sequence: voltage transformer, low pass filter and RMS conversion module: the induction end of voltage transformer accesses resistance, thus the line voltage signal of single phase alternating current power supply is converted to low pressure sinusoidal signal;Low pressure sinusoidal signal exports to low pass filter, and low pass filter exports after filtering the harmonic wave interference in low pressure sinusoidal signal to RMS conversion module, and the low pressure sinusoidal signal filtering harmonic wave interference is converted to direct current virtual value signal by RMS conversion module.
As in figure 2 it is shown, be the circuit diagram of line voltage active perception module.The input of line voltage active perception module is 220V single phase alternating current power supply.220V single phase alternating current power supply initially enters voltage transformer, and voltage transformer uses accurate 2mA/2mA current mode voltage transformer.220V single-phase alternating current accesses voltage transformer P1 primary side by resistance R3.The secondary side of voltage transformer P1 passes through the resistance R4 of 1.5 kilo-ohms;220V alternating voltage is converted to the low pressure sinusoidal signal that highest amplitude is 3V, this low pressure sinusoidal signal and then incoming low pass filter after voltage transformer.
Low pass filter is the active low-pass filter using AD648 amplifier, resistance R1, resistance R2, electric capacity C1 to build, and-3dB the cut-off frequency of this active low-pass filter is 63.7Hz.After low pass filter, highest amplitude is that the sinusoidal signal of 3V filters higher hamonic wave interference signal, and the most remaining frequency is the first-harmonic sinusoidal signal of 50Hz.In this first-harmonic sinusoidal signal and then incoming RMS conversion module.
RMS conversion uses integrated AD536 chip, and AD536 chip is the monolithic integrated optical circuit being turned D. C. value by the real effective of AD company of U.S. research and development.It can calculate any periodic signal of the highest 300kHz.Reference voltage outside Li Yonging can arrange 0dB level easily so that it is corresponding to any virtual value between 0.1V to 2V.The pin 1 of AD536 chip accesses the fundamental signal of the 50Hz after low pass filter, and pin 6 exports the voltage effective value of the fundamental signal of 50Hz, and accesses the PA0 mouth of AVR single chip, and PA0 mouth is the analog-digital converter input port of AVR single chip.Pin 14 and pin 3 connect ± 15V power supply respectively, and electric capacity C2 is filter capacitor, for reducing the ripple of virtual value delivery outlet.
Single phase alternating current power supply, in addition to electrically connecting with line voltage active perception module, also controls to perform module and electrically connects, control to perform the power supply of module as flexible load with flexible load.
Flexible load controls to perform module and includes solid state relay module, jack body and IR remote controller.IR remote controller is connected to the delivery outlet of AVR single chip, and AVR single chip regulates air conditioner load by launching infrared remote-controlled signal.Solid state relay module comprises 6 solid-state relays, the once end of 6 solid-state relays is all linked in single phase alternating current power supply, 6 solid-state relays are as the break-make of on-off control 6 road single phase alternating current power supply, and this 6 road single phase alternating current power supply is coupled with in 6 socket apertures of jack body.In 6 socket apertures of jack body, having 3 socket port is A mouth, is used for regulating purely resistive load, and other 3 jacks are B mouth, are used for controlling other flexible loads.The end that controls of solid state relay module is connected to the delivery outlet of AVR single chip.
As it is shown on figure 3, be the connection circuit diagram of microcontroller and flexible load control execution module.The end that controls of IR remote controller is connected to the PB0 mouth of AVR single chip, the end that controls of No. six solid-state relays is connected to PB1 ~ PB6 mouth of AVR single chip respectively by its drive circuit, owing to the circuit of No. six solid-state relays is identical, therefore the first via solid-state relay in the solid-state relay of Lie Liao No. six and No. fourth solid-state relay in Fig. 3.IR remote controller is used for soft readjustment air conditioner load.Solid state relay module controls for the Flexible Control of purely resistive load and the break-make of other flexible loads.
IR remote controller is mainly controlled by the PB0 mouth of ATmega16 single-chip microcomputer.The core devices of IR remote controller is infrared transmitting tube DS1.Infrared transmitting tube DS1 can send the infrared signal that wavelength is 940 nanometers.The present invention uses 8050 audion Q1 composition power amplification circuits to drive infrared transmitting tube DS1.The supply voltage of 12V controls infrared transmitting tube DS1 by the effect of cut-offfing of audion after R5 current limliting.Infrared remote-controlled signal uses 38.5KHZ square-wave signal to be modulated infrared light.Being integrated with the domestic air conditioning Remoting Protocol of multiple different brands in microcontroller, such that it is able to control different brands, the domestic air conditioning of different model controls.
Solid state relay module controls for the Flexible Control of purely resistive load and the break-make of other flexible loads.Solid-state relay is to use field effect transistor or controllable silicon to realize quick opening and closing of relay.The present invention uses PWM pulse modulation technology, by the high-speed switch function of solid-state relay, it is achieved to the Flexible Control of purely resistive load in household.Purely resistive load such as electric heating device, water heater, electric heating fan and electric heater etc..Fig. 3 only lists the circuit theory diagrams of first via solid-state relay.First via solid-state relay is connected to the jack A of jack body, for realizing the Flexible Control to purely resistive load.PA1 mouth accesses the base stage of audion Q2 through resistance R7, and audion Q2 achieves the power amplification of PD3 mouth control signal, and then the secondary terminals of control solid-state relay K1, and then controls the folding that solid-state relay K1 once holds.By PWM pulse modulation technology, by the copped wave effect to 220V alternating current power supply, the flexible power on time width reduced in each 20ms sinusoidal cycles, and then reduce the voltage effective value of alternating current power supply, it is achieved thereby that the power of purely resistive load is controlled.
Solid state relay module can be used for controlling the break-make of other flexible loads in addition to domestic air conditioning.Other flexible loads refer to be controlled by flexible linear in household, but are not non-just to have needed load, including: domestic lighting load, television set, DVD, domestic acoustics etc..When line voltage declines, alternative cuts away flexible load.Listing No. fourth solid-state relay circuit theory diagrams in Fig. 3, No. fourth solid-state relay is connected to the jack B of jack body, controls for realizing the break-make to other flexible loads.The PB4 mouth of AVR single chip is carried out power amplification, and then the linear quadratic control end of control alternating current electromagnetic relay K2 by audion Q3, and electromagnetic relay K2 once terminates in 220V alternating current power supply.220V alternating current is received in jack body through a contact of electromagnetic relay K2, and indoor flexible load is linked in socket.When PB4 is low level, audion Q3 ends, electromagnetic relay K2 coil losing electricity, thus terminal contacts of electromagnetic relay K2 disconnects, and flexible load cuts away.When PB4 is high level, audion Q3 saturation conduction, electromagnetic relay K2 coil obtains electric, thus terminal contacts Guan Bi of electromagnetic relay K2, other flexible loads recover to access.
The invention also discloses the control method of the flexible load autonomous controller that a kind of perception line voltage declines, microcontroller monitors line voltage numerical value in real time by line voltage active perception module, when line voltage declines, microcontroller flexible immediately according to line voltage decline degree difference can reduce household load.Owing to using solid-state relay to be adjusted, this flexibility reduction action can complete within one millisecond of time, thus the Load Regulation that the very first time effective auxiliary power grid control centre is to electrical network, maintain stablizing of line voltage.
When microcontroller by line voltage active perception module perceive line voltage less than rated voltage 95% and more than 90% time, microcontroller is immediately by IR remote controller soft readjustment design temperature and the difference of Current Temperatures, thus flexible reduction air conditioner load size.AVR single chip exports IR remote controller command signal by PB0 mouth, and this signal, after audion Q1 amplifies, is sent by infraluminescence pipe DS1.This command signal flexibility adjusts design temperature, according to current electric grid voltage decline degree of flexibility regulation air-conditioning design temperature and the difference of current indoor temperature, thus soft readjustment air conditioner load size.Simultaneously, AVR single chip declines degree according to line voltage, controls the PWM square wave of PB1 mouth output different duty, the copped wave effect by solid-state relay K1 of this square wave, control sine ac power supply and carry out break-make the most in the same time within a cycle, thus change the virtual value of sinusoidal ac.Line voltage declines the supply voltage virtual value of degree linearly corresponding purely resistive load.
When microcontroller by line voltage sensing module perceive line voltage less than rated voltage 90% time, microcontroller sends command signal by infrared transmitting tube DS1 immediately, closedown air conditioner load.Purely resistive load and other flexible loads is turned off immediately, so that household load reduction is to minimum, it is ensured that the stability of electrical network supply voltage by solid state relay module.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, on the premise of without departing from the technology of the present invention principle; can also make some improvement and deformation, these improve and deformation also should be regarded as protection scope of the present invention.
Claims (6)
1. the flexible load autonomous controller that perception line voltage declines, it is characterised in that include being linked in sequence: line voltage active perception module, microcontroller and flexible load control to perform module;Described flexible load controls to perform module and includes: solid state relay module, jack body and IR remote controller, and described microcontroller controls energising or the power-off of jack body by solid state relay module;Described IR remote controller is connected with domestic air conditioning signal, and described jack body electrically connects with other household loads in addition to domestic air conditioning;
Described line voltage active perception module monitors line voltage in real time, and microcontroller judges whether cut off the supply of electric power of jack body or reduced the electric power of domestic air conditioning by IR remote controller according to line voltage fall.
The flexible load autonomous controller that perception line voltage the most according to claim 1 declines, it is characterised in that:
Described line voltage active perception module includes being linked in sequence: for gathering the voltage transformer of electrical network phase voltage, for filtering the low pass filter of harmonic wave interference and for sinusoidal ac signal is converted to the RMS conversion module of direct current useful signal;
Power network signal is converted to low pressure sinusoidal signal by voltage transformer, low-pass filtered device filters the harmonic signal in low pressure sinusoidal signal, output is to RMS conversion module, the sinusoidal ac signal of RMS conversion module low pass filter output is converted to direct current useful signal, and is sent to microcontroller.
The flexible load autonomous controller that perception line voltage the most according to claim 2 declines, it is characterized in that: described low pass filter uses integrated operational amplifier AD648 to build low-pass active filter circuit, and-3dB the cut-off frequency of active low-pass filter is 63.7Hz.
The flexible load autonomous controller that perception line voltage the most according to claim 1 declines, it is characterised in that: described microcontroller uses AVR single chip.
The flexible load autonomous controller that perception line voltage the most according to claim 1 declines, it is characterised in that: other household loads described include: purely resistive load and other flexible loads;
Described purely resistive load includes: electric heating device, water heater, electric heating fan and electric heater;
Other flexible loads described include: domestic lighting load, television set, DVD, domestic acoustics;
Described microcontroller, by output PWM square wave, regulates the payload of purely resistive load in the way of chopper control;Control whether other flexible loads access electrical network by the power on/off controlling solid state relay module.
6. the control method of the flexible load autonomous controller of a perception line voltage decline, it is characterised in that:
When microcontroller by line voltage active perception module perceive line voltage less than rated voltage 95% and more than 90% time, described microcontroller passes through design temperature and the difference of current room temperature of IR remote controller soft readjustment domestic air conditioning, thus flexibility reduces domestic air conditioning load;Meanwhile, microcontroller reduces the purely resistive load being connected on jack body by solid state relay module flexibility;
When microcontroller by line voltage active perception module perceive line voltage less than rated voltage 90% time, microcontroller immediately by IR remote controller close domestic air conditioning load;Turn off purely resistive load and other flexible loads by solid state relay module simultaneously.
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CN107104331A (en) * | 2017-06-06 | 2017-08-29 | 山东大学 | Intelligent socket and its method of work with cutting load function |
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CN110970878A (en) * | 2019-12-24 | 2020-04-07 | 宁夏凯晨电气集团有限公司 | Method for improving band-limited time current quick-break precision based on mean filtering |
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Application publication date: 20160921 |