CN206180590U - Flexible load that perception grid voltage descends is from main control unit - Google Patents
Flexible load that perception grid voltage descends is from main control unit Download PDFInfo
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- CN206180590U CN206180590U CN201620591415.5U CN201620591415U CN206180590U CN 206180590 U CN206180590 U CN 206180590U CN 201620591415 U CN201620591415 U CN 201620591415U CN 206180590 U CN206180590 U CN 206180590U
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- 230000008447 perception Effects 0.000 title claims abstract description 18
- 239000007787 solid Substances 0.000 claims abstract description 16
- 238000004378 air conditioning Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000005485 electric heating Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
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- 230000009467 reduction Effects 0.000 abstract description 5
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- 238000010586 diagram Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
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- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
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- 238000000034 method Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
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Classifications
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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
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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
- Y04S20/242—Home appliances
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- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses a flexible load that perception grid voltage descends is from main control unit, including grid voltage initiative perceiving module, microcontroller and flexible load control executable module, flexible load control executable module includes: solid state relay module, socket ontology and infrared remote control, microcontroller pass through solid state relay module control socket ontology's circular telegram or outage. The utility model discloses during operation, microcontroller pass through grid voltage initiative perceiving module real -time supervision grid voltage numerical value, and when grid voltage descends, microcontroller can descend according to grid voltage, and different and flexible reduction house is loaded for the degree. Owing to adopt solid state relay to adjust, this flexibility reduces the action and can accomplish in one millisecond of time to effectively supplementary power grid dispatching center of the very first time adjusts the load of electric wire netting, maintains grid voltage's stability.
Description
Technical field
This utility model is related to the flexible load autonomous controller that a kind of perception line voltage declines, and belongs to power system soft
Property spatial load forecasting technical field.
Background technology
In recent years, with the increasingly reduction increasingly highlighted with traditional Coal Energy Source of problem of environmental pollution, wind energy, solar energy
The proportion of distributed clean energy resource is increasing, but to there is poor controllability, intermittent time indefinite etc. for distributed clean energy resource
Deficiency, thus national grid constantly improves electric network composition, and by self-centered regional power grid large-scale receiving end electrical network is changed into, the party
Formula can realize electric power resource scheduling in China so that electric energy is efficiently deployed.But also it is faced with many new
Problem, such as：Trans-regional power transfer corridors are stopped transport suddenly because of various accidental causes, by directly to the safety of large receiving-end grid
Stable operation causes larger impact.Therefore, how when electrical network power supply capacity is varied widely, effectively and rapidly flexibility is adjusted
Whole customer charge, amplitude peak ground maintains line voltage and the stable of frequency to become new problem in the urgent need to address.Therefore,
In the urgent need to making full use of the technology based on customer charge flexible control, the new autonomous soft of user oriented device end is studied
Property control technology, is that the power grid operation under electric power is interconnected on a large scale provides safeguard.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, there is provided it is soft that a kind of perception line voltage declines
Property load autonomous controller, solve to cause mains frequency to decline because electrical network supplies active underpower in prior art, electrical network frequency
The technical problem of rate ability of regulation and control difference.
To solve above-mentioned technical problem, the technical scheme that this utility model is adopted is：Perceive the soft of line voltage decline
Property load autonomous controller, including what is be linked in sequence：The control of line voltage active perception module, microcontroller and flexible load is held
Row module；The flexible load control performing module includes：Solid state relay module, jack body and IR remote controller, it is described
Microcontroller controls the energization or power-off of jack body by solid state relay module；The IR remote controller is believed with domestic air conditioning
Number connection, the jack body electrically connects with the flexible load in addition to domestic air conditioning or purely resistive load；
The line voltage active perception module real-time monitoring line voltage, microcontroller is according to line voltage fall
Judge whether the supply of electric power for cutting off jack body or the electric power of domestic air conditioning is reduced by IR remote controller.
The line voltage active perception module includes what is be linked in sequence：For gathering the mutual induction of voltage of electrical network phase voltage
Device, for filter harmonic wave interference low pass filter and for sinusoidal ac signal to be converted to into the very effective of direct current useful signal
Value modular converter；
Power network signal is converted to low pressure sinusoidal signal by voltage transformer, and low-pass filtered device is filtered in low pressure sinusoidal signal
Harmonic signal, export to RMS conversion module, the simple alternating current letter of RMS conversion module low pass filter output
Number direct current useful signal is converted to, and is sent to microcontroller.
The low pass filter builds low-pass active filter circuit, active low pass using integrated operational amplifier AD648
- 3dB the cut-off frequencies of wave filter are 63.7Hz.
The microcontroller adopts AVR single chip.
The purely resistive load includes：Electric heating device, water heater, electric heating fan and electric heater；
The flexible load includes：Domestic lighting load, television set, DVD, domestic acoustics；
The microcontroller adjusts the payload of purely resistive load by exporting PWM square waves in the way of chopper control；
Control whether flexible load accesses electrical network by controlling the power on/off of solid state relay module.
Compared with prior art, the beneficial effect that this utility model is reached is：
1st, it is capable of the supply voltage of real-time perception electrical network, when causing line voltage to decline when network re-active power is not enough,
It can reduce domestic air conditioning load by the way that IR remote controller is flexible, can be born by the flexible purely resistive that reduces of solid state relay module
Lotus；
2nd, when line voltage declines by a big margin, flexible load can be cut away by solid state relay module, so as to ensure
Line voltage and frequency are stablized, it is ensured that power grid operation, when line voltage recovers, it can progressively recover flexible load
To initial condition；
3rd, household load flexible control is realized with the external form of socket, beneficial to transformation and popularization and application, and is excavated
Household electricity family participates in the stabilization of power grids and adjusts, and realizes that flexibility becomes more meticulous spatial load forecasting, lifts the voltage controlling ability of electrical network, keeps
Operation of power networks is stablized.
Description of the drawings
Fig. 1 is the circuit theory frame for perceiving the flexible load autonomous controller that line voltage declines that this utility model is provided
Figure.
Fig. 2 is the circuit diagram of line voltage active perception module in Fig. 1.
Fig. 3 is the connection circuit diagram that microcontroller and flexible load control performing module in Fig. 1.
Specific embodiment
This utility model is further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating this
The technical scheme of utility model, and protection domain of the present utility model can not be limited with this.
As shown in figure 1, a kind of perceive the flexible load autonomous controller that line voltage declines, mainly include three parts：Electricity
Net voltage active perception module, microcontroller and flexible load control performing module.
The core controller of microcontroller adopts AVR single chip, and the input port of AVR single chip is analogue signal input port,
Delivery outlet is on-off model delivery outlet.AVR single chip is ATmega16 single-chip microcomputers, and the single-chip microcomputer is public by Italian Atmel
Department develops, and 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 what is be linked in sequence：Voltage transformer, low pass filter and real effective turn
Mold changing block：The induction end of voltage transformer accesses resistance, so as to the line voltage signal of single phase alternating current power supply is being converted to into low pressure just
String signal；Low pressure sinusoidal signal is exported to low pass filter, and low pass filter is filtered after the harmonic wave interference in low pressure sinusoidal signal
Export to RMS conversion module, the low pressure sinusoidal signal for filtering harmonic wave interference is converted to direct current by RMS conversion module
Effective value signal.
As shown in Fig. 2 being the circuit diagram of line voltage active perception module.The input of line voltage active perception module is
220V single phase alternating current power supplies.220V single phase alternating current power supplies initially enter voltage transformer, and voltage transformer adopts precision 2mA/2mA
Current mode voltage transformer.220V single-phase alternating currents access voltage transformer P1 primary sides by resistance R3.Voltage transformer P1
Secondary side by 1.5 kilo-ohms of resistance R4；220V alternating voltages are converted to highest amplitude for 3V's after voltage transformer
Low pressure sinusoidal signal, the low pressure sinusoidal signal and then incoming low pass filter.
Low pass filter is the active low-pass filter built using AD648 amplifiers, resistance R1, resistance R2, electric capacity C1, should
- 3dB the cut-off frequencies of active low-pass filter are 63.7Hz.After low pass filter, highest amplitude is the sinusoidal signal of 3V
Higher hamonic wave interference signal is filtered, only remaining frequency is the fundamental wave sinusoidal signal of 50Hz.The fundamental wave sinusoidal signal is further incoming true
In RMS-DC converter module.
RMS conversion adopts integrated AD536 chips, and AD536 chips are that the real effective researched and developed by AD companies of the U.S. turns
The monolithic integrated optical circuit of D. C. value.It can calculate any periodic signal of highest 300kHz.Can using outside reference voltage
Easily to arrange 0dB level so as to corresponding to any virtual value between 0.1V to 2V.The pin 1 of AD536 chips connects
Enter the fundamental signal of the 50Hz after low pass filter, the voltage effective value of the fundamental signal of the output 50Hz of pin 6, and access
The PA0 mouths of AVR single chip, PA0 mouths are the analog-digital converter input ports of AVR single chip.Pin 14 and pin 3 meet respectively ± 15V
Power supply, electric capacity C2 is filter capacitor, for reducing the ripple of virtual value delivery outlet.
Single phase alternating current power supply also controls performing module in addition to electrically connecting with line voltage active perception module with flexible load
Electrical connection, as flexible load the power supply of performing module is controlled.
Flexible load control performing module includes solid state relay module, jack body and IR remote controller.It is infrared distant
Control device is connected to the delivery outlet of AVR single chip, and AVR single chip adjusts air conditioner load by launching infrared remote-controlled signal.Solid-state
Relay module includes 6 solid-state relays, and the once end of 6 solid-state relays is all linked in single phase alternating current power supply, and 6 solid
Used as the break-make of the road single phase alternating current power supply of on-off control 6, the 6 road single phase alternating current power supply is coupled with jack body to state relay
In 6 socket apertures.In 6 socket apertures of jack body, there are 3 socket ports for A mouths, for adjusting purely resistive load, 3 in addition
Jack is B mouths, for controlling flexible load.The control end of solid state relay module is connected to the delivery outlet of AVR single chip.
As shown in figure 3, being the connection circuit diagram that microcontroller and flexible load control performing module.The control of IR remote controller
End processed is connected to the PB0 mouths of AVR single chip, and the control end of No. six solid-state relays is connected to AVR by its drive circuit respectively
PB1~PB6 mouths of single-chip microcomputer, due to the circuit of No. six solid-state relays it is identical, therefore tunnel solid-state relays of a Lie Liao six in Fig. 3
First via solid-state relay and No. fourth solid-state relay in device.IR remote controller is used for soft readjustment air conditioner load.Solid-state
Relay module is used for the break-make control of the Flexible Control of purely resistive load and flexible load.
IR remote controller is mainly controlled by the PB0 mouths of ATmega16 single-chip microcomputers.The core devices of IR remote controller are infrared
Transmitting tube DS1.Infrared transmitting tube DS1 can send the infrared signal that wavelength is 940 nanometers.This utility model adopts 8,050 3
Pole pipe Q1 composition power amplification circuit drives infrared transmitting tube DS1.The supply voltage of 12V is after R5 current limlitings by audion
Cut-off effect control infrared transmitting tube DS1.Infrared remote-controlled signal is modulated using 38.5KHZ square-wave signals to infrared light.It is micro-
The domestic air conditioning Remoting Protocol of various different brands, such that it is able to control different brands, different model are integrated with controller
Domestic air conditioning is controlled.
Solid state relay module is used for the break-make control of the Flexible Control of purely resistive load and flexible load.Solid-state relay
Device is that quick opening and closing of relay is realized using field effect transistor or controllable silicon.This utility model adopts PWM pulsewidths
Modulation technique, by the high-speed switch function of solid-state relay, realizes the Flexible Control to purely resistive load in household.Purely resistive
Load such as electric heating device, water heater, electric heating fan and electric heater etc..The circuit of first via solid-state relay is only listed in Fig. 3
Schematic diagram.First via solid-state relay is connected to the jack A of jack body, for realizing the Flexible Control to purely resistive load.
PA1 mouths access the base stage of audion Q2 through resistance R7, and audion Q2 realizes the power amplification of PD3 mouth control signals, and then
The secondary terminals of control solid-state relay K1, and then control the folding that solid-state relay K1 once holds.By PWM pulsewidth modulation skills
Art, is acted on by the copped wave to 220V alternating current power supplys, and flexibility reduces the power on time width in each 20ms sinusoidal cycles,
And then the voltage effective value of reduction alternating current power supply, it is achieved thereby that the Power Control to purely resistive load.
Solid state relay module can be used for controlling the break-make of the flexible load in addition to domestic air conditioning.Flexible load is
Referring to can not be controlled in household by flexible linear, but nor non-just needed load, including：Domestic lighting load, television set, DVD,
Domestic acoustics etc..When line voltage declines, alternative cuts away flexible load.No. fourth solid-state relay is listed in Fig. 3
Circuit theory diagrams, No. fourth solid-state relay is connected to the jack B of jack body, for realizing the break-make control to flexible load
System.The PB4 mouths of AVR single chip carry out power amplification by audion Q3, and then control the linear quadratic control of alternating current electromagnetic relay K2
End, electromagnetic relay K2's once terminates in 220V alternating current power supplys.220V alternating currents are once touched through electromagnetic relay K2's
Point is connected in jack body, and indoor flexible load is linked in socket.When PB4 be low level when, audion Q3 cut-off, electromagnetism after
Electrical equipment K2 coil losing electricities, so as to terminal contacts of electromagnetic relay K2 disconnect, flexible load cuts away.When PB4 is high level, three
Pole pipe Q3 saturation conduction, electromagnetic relay K2 coils obtain electric, and so as to terminal contacts closure of electromagnetic relay K2, flexible load is extensive
Multiple connection enters.
The control method of the flexible load autonomous controller that line voltage declines is perceived, microcontroller passes through line voltage master
Dynamic sensing module real-time monitoring line voltage numerical value, when line voltage declines, microcontroller can decline journey according to line voltage
Degree is different and immediately flexibility reduces household load.Due to being adjusted using solid-state relay, the flexible reduction action can be one
Complete in the millisecond time, so as to Load Regulation of the very first time effective auxiliary power grid control centre to electrical network, maintain line voltage
Stablize.
When microcontroller by line voltage active perception module perceive line voltage less than rated voltage 95% and
During more than 90%, microcontroller passes through immediately the difference of IR remote controller soft readjustment design temperature and Current Temperatures, so as to soft
Property reduce air conditioner load size.AVR single chip exports IR remote controller command signal by PB0 mouths, and the signal is through audion
After Q1 amplifies, sent by infraluminescence pipe DS1.The flexible adjustment design temperature of the command signal, declines according to current electric grid voltage
Degree of flexibility adjusts the difference of air-conditioning design temperature and current indoor temperature, so as to soft readjustment air conditioner load size.Meanwhile,
AVR single chip declines degree according to line voltage, controls the PWM square waves that PB1 mouths export different duty, and the square wave passes through solid-state
The copped wave effect of relay K1, control sine ac power supply does not carry out in the same time break-make in a cycle, so as to change just
The virtual value of string alternating current.Line voltage declines the supply voltage virtual value that degree linearly corresponds to purely resistive load.
When microcontroller perceives line voltage by line voltage sensing module is less than the 90% of rated voltage, micro-control
Device processed sends command signal by infrared transmitting tube DS1 immediately, closes air conditioner load.Turned off by solid state relay module immediately
Purely resistive load and flexible load, so that household load reduction is to minimum, it is ensured that the stability of electrical network supply voltage.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model know-why, some improvement and deformation can also be made, these change
Enter and deform also to should be regarded as protection domain of the present utility model.
Claims (5)
1. the flexible load autonomous controller that line voltage declines is perceived, it is characterised in that including what is be linked in sequence：Line voltage
Active perception module, microcontroller and flexible load control performing module；The flexible load control performing module includes：Solid-state
Relay module, jack body and IR remote controller, the microcontroller controls jack body by solid state relay module
It is powered or power-off；The IR remote controller is connected with domestic air conditioning signal, the jack body and flexibility in addition to domestic air conditioning
Load or purely resistive load are electrically connected；
The line voltage active perception module real-time monitoring line voltage, microcontroller judges according to line voltage fall
Whether cut off the supply of electric power of jack body or the electric power of domestic air conditioning is reduced by IR remote controller.
It is 2. according to claim 1 to perceive the flexible load autonomous controller that line voltage declines, it is characterised in that：
The line voltage active perception module includes what is be linked in sequence：For gathering the voltage transformer of electrical network phase voltage, using
Turn in the low pass filter for filtering harmonic wave interference and the real effective for sinusoidal ac signal to be converted to direct current useful signal
Mold changing block；
Power network signal is converted to low pressure sinusoidal signal by voltage transformer, and low-pass filtered device filters humorous in low pressure sinusoidal signal
Ripple signal, exports to RMS conversion module, and the sinusoidal ac signal of RMS conversion module low pass filter output turns
Direct current useful signal is changed to, and is sent to microcontroller.
It is 3. according to claim 2 to perceive the flexible load autonomous controller that line voltage declines, it is characterised in that：It is described
Low pass filter builds low-pass active filter the circuit, -3dB of active low-pass filter using integrated operational amplifier AD648
Cut-off frequency is 63.7Hz.
It is 4. according to claim 1 to perceive the flexible load autonomous controller that line voltage declines, it is characterised in that：It is described
Microcontroller adopts AVR single chip.
It is 5. according to claim 1 to perceive the flexible load autonomous controller that line voltage declines, it is characterised in that：It is described
Purely resistive load includes：Electric heating device, water heater, electric heating fan and electric heater；
The flexible load includes：Domestic lighting load, television set, DVD, domestic acoustics；
The microcontroller adjusts the payload of purely resistive load by exporting PWM square waves in the way of chopper control；Pass through
The power on/off of control solid state relay module is controlling whether flexible load accesses electrical network.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958500A (en) * | 2016-06-17 | 2016-09-21 | 国网江苏省电力公司电力科学研究院 | Flexible load autonomous controller capable of sensing power network voltage reduction and control method of controller |
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2016
- 2016-06-17 CN CN201620591415.5U patent/CN206180590U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958500A (en) * | 2016-06-17 | 2016-09-21 | 国网江苏省电力公司电力科学研究院 | Flexible load autonomous controller capable of sensing power network voltage reduction and control method of controller |
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