CN103532223B - Household solar power supply system and commercial power switching method thereof - Google Patents
Household solar power supply system and commercial power switching method thereof Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000011156 evaluation Methods 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 23
- 210000004027 cell Anatomy 0.000 claims description 15
- 210000002569 neuron Anatomy 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 11
- 230000002950 deficient Effects 0.000 claims description 6
- 238000012549 training Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 238000012937 correction Methods 0.000 claims description 3
- 238000010606 normalization Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000013083 solar photovoltaic technology Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- 230000008092 positive effect Effects 0.000 description 1
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
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Abstract
The invention provides a household solar power supply system, which comprises a solar photovoltaic cell, an inverter and an indoor power supply line, wherein the indoor power supply line is at least provided with more than 1 path; the structure is characterized in that: the intelligent power supply switching system also comprises a power supply intelligent switching controller, a Zigbee network, an electric energy quality monitor, a switching master switch, a solar power supply switching switch, a commercial power switching switch and a commercial power direct supply switch; the solar power supply changeover switch and the commercial power changeover switch are automatically controlled by the intelligent power supply changeover controller; the electric energy quality monitor is in signal electric connection with the intelligent power supply switching controller through a Zigbee network; the invention relates to a method for switching with commercial power, which is mainly characterized in that a power supply intelligent switching controller adopts an object propagation network evaluation method to evaluate the electric energy quality of solar power supply, and automatically controls the switching between the solar power supply and the commercial power according to an evaluation result. The invention realizes the purpose of utilizing solar energy to supply power to the maximum extent on the basis of effectively protecting the safety of household appliances, thereby saving energy.
Description
Technical field
The present invention relates to solar photovoltaic technology field, be specifically related to a kind of method that domestic solar electric power system and this domestic solar electric power system and civil power switch.
Background technology
Along with the progressively consumption of the traditional energies such as oil, natural gas and coal, traditional fossil energy is just petered out.Current countries in the world are all using the direction tapped a new source of energy and utilize regenerative resource to develop as future source of energy.Solar energy power generating is with the advantage of its uniqueness, and its application comes into one's own day by day, and the solar energy auxiliary power supply system used from large-sized solar power station to family, its range of application is more and more wider.Solar photovoltaic generation system is usually primarily of the capital equipments such as solar panel (or solar panel array), solar photovoltaic inverter (or combining inverter) or parts composition.At present, solar photovoltaic technology is applied to the uses interior among a small circle such as family and has investigation and application, as application publication number be CN102104347A, name is called the Chinese patent literature of " solar energy (photovoltaic) domestic generating system ", which propose a kind of domestic solar electricity generation system, relate to intelligent controller and propose under the control of intelligent controller, implement solar powered and switching that is civil power if desired, but it only proposes this concept, there is no the concrete technical scheme controlling and switch.In existing domestic solar electric power system, often only lay particular emphasis on the structure of solar power system itself, ignore the monitoring to the quality of power supply that solar electric power supply system provides, still power supply is continued when causing the quality of power supply provided at family expenses solar electric power supply system not meet the technical requirement of household electrical appliance use, mains-supplied can not be switched in time, thus bring unnecessary trouble and loss to household electrical appliance etc.
Summary of the invention
The object of the invention is: overcome the deficiencies in the prior art, the method that provide a kind of solar powered and civil power to realize domestic solar electric power system that intelligence switches and domestic solar electric power system and civil power switch.
Technical scheme of the present invention is: domestic solar electric power system of the present invention, and comprise solar-energy photo-voltaic cell, inverter, indoor power supply circuit, indoor power supply circuit at least arranges more than 1 tunnel; Its design feature is: also comprise power supply smart switch controller, Zigbee network, electric energy quality monitor, switching master switch, solar powered diverter switch and civil power diverter switch; The number of units of electric energy quality monitor is identical with the way of indoor power supply circuit;
Above-mentioned solar-energy photo-voltaic cell has voltage output end; Inverter has voltage input end and voltage output end; Solar powered diverter switch and civil power diverter switch have input, output and control signal input respectively; Switch master switch and there is input and output; Power supply smart switch controller has detection signal input, the first control output end and the second control output end; Zigbee network and electric energy quality monitor have signal input part and signal output part respectively;
The voltage input end of above-mentioned inverter is electrically connected with the voltage output end of solar-energy photo-voltaic cell; The input of solar powered diverter switch is electrically connected with the voltage output end of inverter; The control signal input of solar powered diverter switch is electrically connected with the first control output end signal of power supply smart switch controller; The control signal input of civil power diverter switch is electrically connected with the second control output end signal of power supply smart switch controller; The input termination civil power of civil power diverter switch; Switch the output conllinear of the input of master switch, the output of solar powered diverter switch and civil power diverter switch; One end of indoor power supply circuit is electrically connected with the output switching master switch; Another termination household electrical appliance of indoor power supply circuit;
The detection signal input of power supply smart switch controller is electrically connected with the signal output part signal of Zigbee network; The signal input part of Zigbee network is electrically connected with the signal output part signal of electric energy quality monitor; The signal input part of electric energy quality monitor is electrically connected with indoor power supply line signal.
Further scheme is: also comprise civil power direct-furnish switch, and the input termination civil power of described civil power direct-furnish switch, output is connected with indoor power supply line electricity.
Further method is: above-mentioned solar-energy photo-voltaic cell is solar-energy photo-voltaic cell group; Electric energy quality monitor is the electric energy quality monitor of ACR120E model; Power supply smart switch controller comprises the integrated chip of TMS320F2806 model.
Above-mentioned domestic solar electric power system, use object communication network algorithm to carry out comprehensive assessment to solar powered quality, realize domestic solar and civil power intelligent switch method, changing method mainly comprises the following steps:
Step 1: set up the evaluation system based on object communication network appraisal procedure that the solar powered quality of power supply is assessed in power supply smart switch controller:
1. power quality index system is set up, arrange evaluation rank: by the assessment software set evaluation index system that power supply smart switch controller is built-in, this evaluation index system comprises voltage dip, voltage deviation, three-phase imbalance, fluctuation, flickering, harmonic wave, frequency departure and power supply reliability totally 8 indexs; According to the prescribed limit of GB or internationally recognized definition the indices in index system is divided into excellent, good, in, qualified and defective totally 5 grades;
2. Power Quality Detection data are gathered: electric energy quality monitor gathers quality of power supply corresponding data and is uploaded to power supply smart switch controller;
3. power supply smart switch controller to 8 of the quality of power supply indexs according to Pyatyi judgment criteria, be normalized after demarcation interval, be placed on (0,1) interval, utilize uniform random number at index constant interval at different levels, 100 index sample values that interpolation produces at random;
4. by 100 index sample input object communication networks, calculating parameter, determines theoretical output valve, completes the input amendment training of object communication network;
Step 2: each power quality parameter that power supply smart switch controller real-time reception electric energy quality monitor is uploaded, utilizes object communication network appraisal procedure to carry out real-time assessment to the quality of power supply; If the electric energy quality grade of assessment " in " more than grade time, remain solar powered;
Step 3: if the electric energy quality grade of power supply smart switch controller assessment is when " qualified " or " defective " grade, power supply smart switch controller controls solar powered diverter switch and disconnects, and the conducting of civil power diverter switch, by mains-supplied;
Step 4: if switch master switch conducting again after closedown, power supply smart switch controller controls solar powered diverter switch conducting, civil power diverter switch disconnects, by solar powered;
Step 5: repeat step 2 to step 4.
Further scheme is: the step of above-mentioned step 1 4. in the sample training method of object communication network, mainly comprise the following steps:
2. initialization and determine parameter: determine input layer number n, and input vector X is normalized:
Determine competition layer neuron p, for two-value output vector B=[b
1, b
2..., b
p]
t, output layer output vector Y=[y
1, y
2..., y
q]
t, target output vector O=[o
1, o
2..., o
q]
t, reader t=0;
Initialization input layer is to the connection weights W of competition layer
j(j=1,2 ..., p) with by the connection weight V of competition layer to output layer
k(k=1,2 ..., q), and to W
jbe normalized;
2. the input of competition layer is calculated: ask each neuronic input of competition layer by following formula:
3. connection weight W is calculated
jthe vector nearest with X: by following formulae discovery:
4. the output of neuron g is set as 1, all the other neurons export and are set as 0, namely
5. revise and connect weights W
g: undertaken revising and being normalized by following formula:
ω
gi(t+1)=ω
gi(t)+α[x
i-ω
gi(t)],i=1,2,…，n,0<α<1
6. output is calculated: be calculated as follows out neuronic real output value:
7. connection weight V is revised
g: by following formula correction weight V
g:
υ
kg(t+1)=υ
kg(t)+βb
j(y
k-o
k),k=1,2,…，q,0<β<1
8. return 2. to walk, directly N number of input pattern is all inputted;
9. put t=t+1, input pattern X is supplied to e-learning again, until t=T, wherein T is the study total degree preset.
The present invention has positive effect: (1) domestic solar electric power system of the present invention; by its power supply smart switch controller, real-time assessment is carried out to solar powered quality; according to the corresponding automatic control of assessment result by solar powered or switch to mains-supplied; thus on the basis of the safety of available protecting household electrical appliance; realization farthest utilizes solar powered, energy savings.(2) domestic solar electric power system of the present invention, structure is simple, and cost is lower, easy to install, is easy to promote.(3) method that switches of domestic solar electric power system of the present invention and civil power, adopted based on the evaluation system of object communication network appraisal procedure solar powered quality real-time assessment by power supply smart switch controller, when assessment result do not meet setting require time, automatically switch to mains-supplied in real time, easy to use.
Accompanying drawing explanation
Fig. 1 is overall system architecture schematic diagram of the present invention, the household electrical appliances that also show connected civil power and family expenses supply line in figure and be electrically connected with family expenses supply line;
Fig. 2 is the present invention and civil power changing method flow chart;
Fig. 3 is the structure chart of object communication network (CPN).
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
(embodiment 1)
See Fig. 1, the domestic solar electric power system of the present embodiment, form primarily of solar-energy photo-voltaic cell (group), inverter, power supply smart switch controller, Zigbee network, electric energy quality monitor, switching master switch, solar powered diverter switch, civil power diverter switch, civil power direct-furnish switch and indoor power supply circuit, indoor power supply circuit at least arranges more than 1 tunnel, its quantity N is relative set needed for the concrete condition of indoor household electrical appliances, and the number of units of electric energy quality monitor is identical with the way of indoor power supply circuit.
Solar-energy photo-voltaic cell has voltage output end; Inverter has voltage input end and voltage output end; Solar powered diverter switch and civil power diverter switch have input, output and control signal input respectively; Switching master switch and civil power direct-furnish switch have input and output respectively; Power supply smart switch controller has detection signal input, the first control output end and the second control output end; Zigbee network and electric energy quality monitor have signal input part and signal output part respectively;
The voltage input end of inverter is electrically connected with the voltage output end of solar-energy photo-voltaic cell; The input of solar powered diverter switch is electrically connected with the voltage output end of inverter; The control signal input of solar powered diverter switch is electrically connected with the first control output end signal of power supply smart switch controller; The control signal input of civil power diverter switch is electrically connected with the second control output end signal of power supply smart switch controller; The input of civil power diverter switch and the input termination civil power of civil power direct-furnish switch; Switch the output conllinear of the input of master switch, the output of solar powered diverter switch and civil power diverter switch; One end of each bar indoor power supply circuit, switch the output of master switch and the output conllinear of civil power direct-furnish switch; Another termination household electrical appliance of each bar indoor power supply circuit;
The detection signal input of power supply smart switch controller is electrically connected with the signal output part signal of Zigbee network; The signal input part of Zigbee network is electrically connected with the signal output part signal of each electric energy quality monitor; The signal input part of each electric energy quality monitor is electrically connected to each corresponding indoor power supply line signal.
Solar-energy photo-voltaic cell is arranged without, when power demand is larger, can adopt solar-energy photo-voltaic cell group.Solar-energy photo-voltaic cell (group) output dc voltage.
Inverter is converted to the alternating voltage of 220V/50Hz after being used for the dc voltage boost transmitted by solar-energy photo-voltaic cell (group).
Solar powered diverter switch and civil power diverter switch all adopt the dynamic switch that can be automatically controlled, as relay switch.
The electric energy quality monitor of the ACR120E model preferably adopting ACR company to produce in electric energy quality monitor the present embodiment.Electric energy quality monitor is used for by time solar photovoltaic powered, monitors the technical indicator that the qualities of power supply such as the voltage dip of its monitoring point, place, voltage deviation, three-phase imbalance, fluctuation, flickering, harmonic wave and frequency departure are relevant.Electric energy quality monitor has RS485 interface.
Zigbee network is a kind of wireless network of low speed short-distance transmission.Zigbee network a kind ofly has low-power consumption, low cost, low rate, support great deal of nodes, supports multiple network topology, low complex degree, quick, reliable, safe cordless communication network.Zigbee network has transmitting terminal and receiving terminal, and the transmitting terminal of Zigbee network has RS485 interface, and this interface is the signal input part of aforesaid ZigBee-network; The receiving terminal of Zigbee network has RS232 interface, and this interface is the signal output part of aforesaid ZigBee-network; The receiving terminal of Zigbee network is connected with radio communication between transmitting terminal.
The core devices of power supply smart switch controller is the integrated chip of TMS320F2806 model.The power quality data of power supply smart switch controller to each electric energy quality monitor transmission received adopts object communication network appraisal procedure to carry out electric energy quality grade assessment, when assess not up to standard by solar powered electric energy quality grade time, power supply smart switch controller controls civil power diverter switch and connects civil power, is that household electrical appliance are powered by civil power.When each connection switches master switch, first power supply smart switch controller default setting controls solar powered diverter switch and connects, and is preferentially powered by solar energy.
Civil power direct-furnish switch, as stand-by power supply switch, as when the domestic solar electric power system of the present embodiment breaks down, as long as connect civil power direct-furnish switch, namely provides household electricity by civil power.When the domestic solar electric power system of the present embodiment comes into operation, need to cut off civil power direct-furnish switch.
See Fig. 2 and Fig. 3, the domestic solar electric power system of the present embodiment and civil power changing method, mainly comprise the following steps:
Step 1: set up the evaluation system based on object communication network appraisal procedure that the solar powered quality of power supply is assessed in power supply smart switch controller:
1. power quality index system is set up, arrange evaluation rank: by the assessment software set evaluation index system that power supply smart switch controller is built-in, this evaluation index system comprises voltage dip, voltage deviation, three-phase imbalance, fluctuation, flickering, harmonic wave, frequency departure and power supply reliability totally 8 indexs; According to the prescribed limit of GB or internationally recognized definition the indices in index system is divided into excellent, good, in, qualified and defective totally 5 grades;
2. Power Quality Detection data are gathered: electric energy quality monitor gathers quality of power supply corresponding data and is uploaded to power supply smart switch controller;
3. power supply smart switch controller to 8 of the quality of power supply indexs according to Pyatyi judgment criteria, be normalized after demarcation interval, be placed on (0,1) interval, utilize uniform random number at index constant interval at different levels, 100 index sample values that interpolation produces at random;
4. by 100 index sample input object communication networks, calculating parameter, determines theoretical output valve, completes the input amendment training of object communication network;
Step 2: each power quality parameter that power supply smart switch controller real-time reception electric energy quality monitor is uploaded, utilizes object communication network appraisal procedure to carry out real-time assessment to the quality of power supply; If the electric energy quality grade of assessment " in " more than grade time, remain solar powered;
Step 3: if the electric energy quality grade of power supply smart switch controller assessment is when " qualified " or " defective " grade, power supply smart switch controller controls solar powered diverter switch and disconnects, and the conducting of civil power diverter switch, by mains-supplied;
Step 4: if switch master switch conducting again after closedown, power supply smart switch controller controls solar powered diverter switch conducting, civil power diverter switch disconnects, by solar powered;
Step 5: repeat step 2 to step 4.
The step of aforesaid step 1 4. in the sample training method of object communication network, mainly comprise the following steps:
3. initialization and determine parameter: determine input layer number n, and input vector X is normalized:
Determine competition layer neuron p, for two-value output vector B=[b
1, b
2..., b
p]
t, output layer output vector Y=[y
1, y
2..., y
q]
t, target output vector O=[o
1, o
2..., o
q]
t, reader t=0.
Initialization input layer is to the connection weights W of competition layer
j(j=1,2 ..., p) with by the connection weight V of competition layer to output layer
k(k=1,2 ..., q), and to W
jbe normalized.
2. the input of competition layer is calculated: ask each neuronic input of competition layer by following formula:
3. connection weight W is calculated
jthe vector nearest with X.By following formulae discovery:
4. the output of neuron g is set as 1, all the other neurons export and are set as 0, namely
5. revise and connect weights W
g: undertaken revising and being normalized by following formula:
ω
gi(t+1)=ω
gi(t)+α[x
i-ω
gi(t)],i=1,2,…，n,0<α<1
6. output is calculated: be calculated as follows out neuronic real output value:
7. connection weight V is revised
g: by following formula correction weight V
g:
υ
kg(t+1)=υ
kg(t)+βb
j(y
k-o
k),k=1,2,…，q,0<β<1
8. return 2. to walk, directly N number of input pattern is all inputted;
9. put t=t+1, input pattern X is supplied to e-learning again, until t=T, wherein T is the study total degree preset, and is generally greater than 500, in the present embodiment, gets T=600.
To sum up, the domestic solar electric power system of the present embodiment, by its power supply smart switch controller, real-time assessment is carried out to solar powered quality, according to the corresponding automatic control of assessment result by solar powered or switch to mains-supplied, thus on the basis of the safety of available protecting household electrical appliance, realization farthest utilizes solar powered, energy savings; And structure is simple, cost is lower, easy to install, is easy to promote.The domestic solar electric power system of the present embodiment and civil power changing method, adopted based on the evaluation system of object communication network appraisal procedure solar powered quality real-time assessment by power supply smart switch controller, when assessment result do not meet setting require time, automatically switch to mains-supplied in real time, easy to use.
Above embodiment is the explanation to the specific embodiment of the present invention; but not limitation of the present invention; person skilled in the relevant technique without departing from the spirit and scope of the present invention; can also make various conversion and change and obtain corresponding equivalent technical scheme, therefore all equivalent technical schemes all should be included into scope of patent protection of the present invention.
Claims (2)
1. domestic solar electric power system and a civil power changing method, comprise domestic solar electric power system, and described domestic solar electric power system comprises solar-energy photo-voltaic cell, inverter, indoor power supply circuit, and indoor power supply circuit at least arranges more than 1 tunnel; Also comprise power supply smart switch controller, Zigbee network, electric energy quality monitor, switching master switch, solar powered diverter switch, civil power diverter switch and civil power direct-furnish switch; The number of units of electric energy quality monitor is identical with the way of indoor power supply circuit;
Described solar-energy photo-voltaic cell has voltage output end; Inverter has voltage input end and voltage output end; Solar powered diverter switch and civil power diverter switch have input, output and control signal input respectively; Switch master switch and there is input and output; Power supply smart switch controller has detection signal input, the first control output end and the second control output end; Zigbee network and electric energy quality monitor have signal input part and signal output part respectively;
The voltage input end of described inverter is electrically connected with the voltage output end of solar-energy photo-voltaic cell; The input of solar powered diverter switch is electrically connected with the voltage output end of inverter; The control signal input of solar powered diverter switch is electrically connected with the first control output end signal of power supply smart switch controller; The control signal input of civil power diverter switch is electrically connected with the second control output end signal of power supply smart switch controller; The input termination civil power of civil power diverter switch; Switch the output conllinear of the input of master switch, the output of solar powered diverter switch and civil power diverter switch; One end of indoor power supply circuit is electrically connected with the output switching master switch; Another termination household electrical appliance of indoor power supply circuit;
The detection signal input of power supply smart switch controller is electrically connected with the signal output part signal of Zigbee network; The signal input part of Zigbee network is electrically connected with the signal output part signal of electric energy quality monitor; The signal input part of electric energy quality monitor is electrically connected with indoor power supply line signal;
The input termination civil power of described civil power direct-furnish switch, output is connected with indoor power supply line electricity;
It is characterized in that: comprise the following steps:
Step 1: set up the evaluation system based on object communication network appraisal procedure that the solar powered quality of power supply is assessed in power supply smart switch controller:
1. power quality index system is set up, arrange evaluation rank: by the assessment software set evaluation index system that power supply smart switch controller is built-in, this evaluation index system comprises voltage dip, voltage deviation, three-phase imbalance, fluctuation, flickering, harmonic wave, frequency departure and power supply reliability totally 8 indexs; According to the prescribed limit of GB or internationally recognized definition the indices in index system is divided into excellent, good, in, qualified and defective totally 5 grades;
2. Power Quality Detection data are gathered: electric energy quality monitor gathers quality of power supply corresponding data and is uploaded to power supply smart switch controller;
3. power supply smart switch controller to 8 of the quality of power supply indexs according to Pyatyi judgment criteria, be normalized after demarcation interval, be placed on (0,1) interval, utilize uniform random number at index constant interval at different levels, 100 index sample values that interpolation produces at random;
4. by 100 index sample value input object communication networks, calculating parameter, determines theoretical output valve, completes the input amendment training of object communication network;
Step 2: each power quality parameter that power supply smart switch controller real-time reception electric energy quality monitor is uploaded, utilizes object communication network appraisal procedure to carry out real-time assessment to the quality of power supply; If the electric energy quality grade of assessment " in " more than grade time, remain solar powered;
Step 3: if the electric energy quality grade of power supply smart switch controller assessment is when " qualified " or " defective " grade, power supply smart switch controller controls solar powered diverter switch and disconnects, and the conducting of civil power diverter switch, by mains-supplied;
Step 4: if switch master switch conducting again after closedown, power supply smart switch controller controls solar powered diverter switch conducting, civil power diverter switch disconnects, by solar powered;
Step 5: repeat step 2 to step 4.
2. the method that switches of domestic solar electric power system according to claim 1 and civil power, is characterized in that: the step of described step 1 4. in the sample training method of object communication network, comprise the following steps:
Initialization and determine parameter: determine input layer number n, and input vector X is normalized:
, in formula,
represent input vector element, i.e. Power Quality Detection
Data,
represent the Power Quality Detection data after normalization;
Determine competition layer neuron number p, corresponding two-value output vector B=[
,
...,
]
, output layer neuron number q, output vector
, target output vector
, reader t=0;
Initialization input layer is to the connection weights of competition layer
, competition layer is to the connection weight of output layer
, and right
be normalized;
2. the input of competition layer is calculated: ask each neuronic input of competition layer by following formula:
，
In formula,
represent the connection weights of each neuron from input layer to competition layer;
3. calculate and connect weights
the vector nearest with X
: by following formulae discovery:
4. the output of neuron g is set as 1, all the other neurons export and are set as 0, namely
5. revise and connect weights
: undertaken revising and being normalized by following formula:
，
In formula,
represent the revised connection weights of neuron from input layer to competition layer;
6. output is calculated: be calculated as follows out neuronic real output value:
，
In formula,
represent the connection weight of neuron from competition layer to output layer;
7. connection weight is revised
: by following formula correction weight
:
，
In formula,
represent the revised connection weight of neuron from competition layer to output layer;
8. return 2. to walk, directly n input vector is all inputted;
9. put t=t+1, input vector X is supplied to again the study of object communication network, until t=T, wherein T is the study total degree preset.
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| CN108336732B (en) * | 2018-03-28 | 2023-11-07 | 山东科技大学 | Household flexible power supply system based on new energy and mains supply |
| CN112349040A (en) * | 2019-08-08 | 2021-02-09 | 递易（上海）智能科技有限公司 | Combined express cabinet and electrical control scheme thereof |
| CN114865780B (en) * | 2022-07-06 | 2022-12-27 | 广东电网有限责任公司佛山供电局 | New energy power supply system |
| CN117254574B (en) * | 2023-09-25 | 2024-06-21 | 深圳航天科创泛在电气有限公司 | Energy storage power distribution and emergency power supply system |
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Effective date of registration: 20231222 Address after: 213173 Zhengping industrial concentration zone, Lijia Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: JIANGSU HUALING ELECTRICAL TECHNOLOGY Co.,Ltd. Address before: 213001, No. 1801, Wu Cheng Road, bell tower, Changzhou, Jiangsu Patentee before: JIANGSU University OF TECHNOLOGY |