CN110912198B - Automatic control system and control method applied to smart home - Google Patents
Automatic control system and control method applied to smart home Download PDFInfo
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- CN110912198B CN110912198B CN201911305511.3A CN201911305511A CN110912198B CN 110912198 B CN110912198 B CN 110912198B CN 201911305511 A CN201911305511 A CN 201911305511A CN 110912198 B CN110912198 B CN 110912198B
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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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
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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]
Abstract
The application relates to an automatic control system and a control method applied to smart home, comprising the following steps: the intelligent household energy supply system comprises a household load, a photovoltaic panel, a micro fan, a fuel cell module and an automatic control module, wherein the automatic control module adjusts the running states and modes of the photovoltaic panel and the micro fan in the intelligent household according to the effective rate of the fuel cell module transmitted to the load and the stored energy of a hydrogen tank in the fuel cell module, and automatic energy supply matching of the household load is realized. The invention provides an automatic system and a control method for automatic control in smart home, which can adjust the whole internal circulation in the smart home by arranging an effective ratio adjusting unit and a hydrogen tank storage adjusting unit, improve the control precision and response speed of automatic control equipment and improve the automatic control performance of automatic control by pre-allocation and feedback correction adjustment.
Description
Technical Field
The invention belongs to the technical field of automatic control, and particularly relates to an automatic control system and method applied to smart home.
Background
In the prior art, automatic control of smart homes is performed, which is an important application point for improving life experience of a whole home system in the future, at present, main improvements for smart homes are precision improvement of detection, improvement of equipment response and improvement of a control mode, wherein the improvement of automatic control of smart homes is a key point, automatic control is like a brain of smart homes, which is a key point for realizing automatic control of smart homes, and how to realize automatic control of energy in a home system for future smart homes, so that automatic conveying of various clean energy sources is realized, which is a difficult point for fully utilizing clean energy sources in the future. Although the clean energy is not limited by exhaustion, the energy requirement in the intelligent home system can be met only by accurate control, and how to realize automatic accurate control of various different clean energies is a difficult point for controlling the intelligent home in the future.
Content of application
The application discloses automated control system for intelligent house includes: the intelligent household energy supply system comprises a household load, a photovoltaic panel, a micro fan, a fuel cell module and an automatic control module, wherein the automatic control module adjusts the running states and modes of the photovoltaic panel and the micro fan in the intelligent household according to the effective rate of the fuel cell module transmitted to the load and the stored energy of a hydrogen tank in the fuel cell module, and automatic energy supply matching of the household load is realized.
The automatic control system applied to the smart home comprises a household load, a household load and a control unit, wherein the household load comprises a direct current load and an alternating current load; the photovoltaic panel is connected with a direct current bus through a direct current converter, and the fan is connected with the direct current bus through an alternating current-direct current converter and then connected with an alternating current bus through a direct current-alternating current converter.
The automatic control system applied to the smart home comprises a DC/AC converter, an electrolytic cell, a hydrogen tank, a fuel cell and a DC/DC converter, wherein the DC bus is connected with the electrolytic cell through the DC/AC converter, the electrolytic cell is connected with the hydrogen tank, the output end of the hydrogen tank is connected with the fuel cell, and the fuel cell is connected with the DC bus through the DC/DC converter.
The automatic control system applied to the smart home comprises a detection unit, a prediction unit, an effective ratio adjusting unit, a hydrogen tank storage adjusting unit and an automatic control unit, wherein the prediction unit is used for predicting the energy consumption of a household load, the detection unit is used for detecting the power value input to the load and the storage amount in a hydrogen tank, the effective ratio adjusting unit is used for adjusting the effective ratio according to the power value of the load detected by the detection unit and the power output by a fuel cell module, the hydrogen tank storage adjusting unit is used for adjusting the storage amount of the hydrogen tank according to the load data predicted by the prediction unit and the storage amount of the hydrogen tank detected by the detection unit, and the automatic control unit is used for carrying out pre-allocation and later feedback correction on the electric quantity and the load condition of the whole home.
The automatic control system applied to the smart home is characterized in that the hydrogen tank storage adjusting unit adjusts the storage capacity in the following way, and the stored energy of the hydrogen tank is calculated in the following way:
wherein E isstor1(t) stored energy at time t of the hydrogen tank, Estor1(t-1) is the stored energy at time t-1 of the hydrogen tank, μiFor the ith photovoltaic panel, EPVi(t) is the power generation amount at the moment t of the ith photovoltaic panel, mujJ-th fan input state factor, EWGj(t)) is the power generation amount at the time t of the jth fan, ηinvFor the efficiency of the converter, Eload(t) power demanded by the load, ηelectThe efficiency of the cell; i is 1 … N, j is 1 … M, and N and M are positive integers; pPEnergy transferred to the hydrogen tank for new energy;
the power lost when the photovoltaic energy and the fan energy are transmitted to the hydrogen tank is respectively as follows: plossi、Plossj
Wherein, BikFor the transmission loss rate of photovoltaic panel energy to the hydrogen tank, BjkIs windThe loss rate of transmission of mechanical energy to the hydrogen tank; d is a positive integer;
the calculated energy stored in the hydrogen tank is transmitted to the automatic control unit for storage, the automatic control unit calculates an energy matching value according to the energy stored in the hydrogen tank and the energy to be consumed by the load predicted by the prediction unit, when the energy matching value cannot meet the energy in the prediction time period, the automatic control unit performs first pre-allocation, adjusts the input state factors of the photovoltaic and the fan, adjusts the efficiency of the electrolytic cell, increases the energy stored in the hydrogen tank, and when the first pre-allocation cannot meet the energy in the prediction time period, performs second pre-allocation, adjusts Bik、BjkSelection of Bik、BjkThe middle and small photovoltaic and fan are put into use to supplement the energy stored in the hydrogen tank, other photovoltaic and fans directly supply the household load, and B is selected from small to large in sequenceik、BjkAnd the photovoltaic and the fan with small size are put into the system, the automatic control of the second pre-allocation is carried out, and the storage of the hydrogen tank is increased.
The automatic control system applied to the smart home is characterized in that the effective ratio adjusting unit adjusts the effective ratio in the following way,
wherein E isstor2(t) energy stored in the discharge state at time t of the hydrogen tank, Estor2(t-1) energy stored in the discharge state at the time of t-1 of the hydrogen tank, ηFCIs the efficiency of the fuel cell;
the effective ratio of hydrogen tank delivery to load is:
wherein, Pf(t) output power generated by the hydrogen tank, BfkTransmission loss rate, mu, for hydrogen tank to loadfThe state factor is input for the f-th hydrogen tank.
The automatic control system applied to the smart home is characterized in that the automatic control unit performs feedback correction in the following way, and calculates the storage surplus E of the hydrogen tankstor(t)，
Estor(t)＝Estor1(t)-Estor2(t)
Judgment Estor(t) whether it is greater than 0, if so, the automatic control unit comparing the data predicted by the prediction unit with the actual operating data of the load detected by the detection unit, if the predicted data is the same as the detected data or if the predicted data is less than the detected data, the automatic control unit adjusting the pre-deployment control strategy to reduce the pre-deployment stored energy to the hydrogen tank, if the predicted data is greater than the detected data, the automatic control unit does not change the current pre-deployment strategy;
judgment EstorAnd (t) if the sum is equal to 0, the automatic control unit calls the time equal to 0, judges whether the time is consistent with the predicted time length, if so, the current automatic control mode is kept, if not, the pre-adjusted control strategy adjusted by the automatic control unit increases the pre-adjusted stored energy distributed to the hydrogen tank, and adds an extra margin value during next pre-adjustment, and selects a proper extra margin value through multiple tests.
A control method applied to an automatic control system of smart home as described in any one of the above, predict the energy consumption of the household load through a prediction unit, detect the power value input to the load and the storage capacity in the hydrogen tank through a detection unit, perform effective rate adjustment according to the power value of the load detected by the detection unit and the power output by the fuel cell module through an effective rate adjustment unit, perform storage capacity adjustment of the hydrogen tank according to the load data predicted by the prediction unit and the storage capacity of the hydrogen tank detected by the detection unit through the hydrogen tank storage adjustment unit, and perform pre-allocation and post-feedback correction by integrating the electric quantity and the load condition of the whole household through an automatic control unit;
the hydrogen tank storage adjustment unit performs storage amount adjustment by,
the stored energy of the hydrogen tank is calculated by:
wherein E isstor1(t) stored energy at time t of the hydrogen tank, Estor1(t-1) is the stored energy at time t-1 of the hydrogen tank, μiFor the ith photovoltaic panel, EPVi(t) is the power generation amount at the moment t of the ith photovoltaic panel, mujJ-th fan input state factor, EWGj(t)) is the power generation amount at the time t of the jth fan, ηinvFor the efficiency of the converter, Eload(t) power demanded by the load, ηelectThe efficiency of the cell; i is 1 … N, j is 1 … M, and N and M are positive integers; pPEnergy transferred to the hydrogen tank for new energy;
the power lost when the photovoltaic energy and the fan energy are transmitted to the hydrogen tank is respectively as follows: plossi、Plossj
Wherein, BikFor the transmission loss rate of photovoltaic panel energy to the hydrogen tank, BjkThe loss rate of the energy transmitted to the hydrogen tank by the fan is determined; d is a positive integer;
the calculated energy stored in the hydrogen tank is transmitted to the automatic control unit for storage, the automatic control unit calculates an energy matching value according to the energy stored in the hydrogen tank and the energy which is predicted by the prediction unit and needs to be consumed by the load, and when the calculated energy matching value cannot meet the requirement in the prediction time periodWhen the energy of the hydrogen tank cannot meet the energy of the predicted time period, the energy of the hydrogen tank is pre-allocated for the second time, and B is adjustedik、BjkSelection of Bik、BjkThe middle and small photovoltaic and fan are put into use to supplement the energy stored in the hydrogen tank, other photovoltaic and fans directly supply the household load, and B is selected from small to large in sequenceik、BjkThe photovoltaic and the fan with medium and small investment are automatically controlled for the second pre-allocation, and the storage of the hydrogen tank is increased;
the effective ratio adjusting unit performs effective ratio adjustment by,
wherein E isstor2(t) energy stored in the discharge state at time t of the hydrogen tank, Estor2(t-1) energy stored in the discharge state at the time of t-1 of the hydrogen tank, ηFCIs the efficiency of the fuel cell;
the effective ratio of hydrogen tank delivery to load is:
wherein, Pf(t) output power generated by the hydrogen tank, BfkTransmission loss rate, mu, for hydrogen tank to loadfA state factor is input into the f-th hydrogen tank;
the automatic control unit performs feedback correction by calculating the storage residual amount E of the hydrogen tankstor(t)，
Estor(t)＝Estor1(t)-Estor2(t)
Judgment Estor(t) is greater than 0, and if so, the automatic control unit compares the data predicted by the prediction unit with the actual operation data of the load detected by the detection unit,if the predicted data is the same as the detected data or if the predicted data is less than the detected data, the automatic control unit adjusts the pre-deployment control strategy to reduce the pre-deployment stored energy to the hydrogen tank, and if the predicted data is greater than the detected data, the automatic control unit does not change the current pre-deployment strategy;
judgment EstorAnd (t) if the sum is equal to 0, the automatic control unit calls the time equal to 0, judges whether the time is consistent with the predicted time length, if so, the current automatic control mode is kept, if not, the pre-adjusted control strategy adjusted by the automatic control unit increases the pre-adjusted stored energy distributed to the hydrogen tank, and adds an extra margin value during next pre-adjustment, and selects a proper extra margin value through multiple tests.
In order to solve the technical problems: the application provides an automatic control system and a control method for automatic control in smart home, through setting up effective ratio regulating unit, hydrogen tank storage regulating unit, can adjust and carry out whole inside circulation in the smart home, through allotment in advance and feedback correction adjustment, improve automatic control equipment's control accuracy and response speed, improve automatic control's automatic control performance. One of the main improvements of the invention is that the calculated energy stored in the hydrogen tank is transmitted to the automatic control unit for storage, the automatic control unit calculates an energy matching value according to the energy stored in the hydrogen tank and the energy to be consumed by the load predicted by the prediction unit, and when the calculated energy matching value cannot meet the energy in the prediction time period, the first pre-allocation is carried out, and the input state factors of the photovoltaic and the fan are adjusted; the other improvement point of the invention is that the pre-control mode is carried out at least twice for allocation, the efficiency of the electrolytic cell is adjusted, the energy stored in the hydrogen tank is increased, when the energy in the predicted time period can not be met by the first pre-allocation, the second pre-allocation is carried out, and B is adjustedik、BjkSelection of Bik、BjkThe middle and small photovoltaic and fan are put into use to supplement the energy stored in the hydrogen tank, other photovoltaic and fans directly supply the household load, and B is selected from small to large in sequenceik、BjkThe photovoltaic and the fan with medium and small investment are automatically controlled for the second pre-allocation, and the storage of the hydrogen tank is increased; as a further improvement of the present invention, feedback modification adjustments can be made by determining EstorAnd (t) correcting the automatic control effect of the automatic control unit by the feedback value of (t), and improving the accuracy of automatic control.
Drawings
Fig. 1 is a schematic view of the autonomous module of the present invention.
Fig. 2 is a schematic diagram of the intelligent home automation control system of the invention.
Fig. 3 is a schematic diagram of an intelligent home automation control method according to the present invention.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
As shown in 2, for this application discloses a schematic diagram of an automated control system applied to smart home, including: the intelligent household energy supply system comprises a household load, a photovoltaic panel, a micro fan, a fuel cell module and an automatic control module, wherein the automatic control module adjusts the running states and modes of the photovoltaic panel and the micro fan in the intelligent household according to the effective rate of the fuel cell module transmitted to the load and the stored energy of a hydrogen tank in the fuel cell module, and automatic energy supply matching of the household load is realized.
The automatic control system applied to the smart home comprises a household load, a household load and a control unit, wherein the household load comprises a direct current load and an alternating current load; the photovoltaic panel is connected with a direct current bus through a direct current converter, and the fan is connected with the direct current bus through an alternating current-direct current converter and then connected with an alternating current bus through a direct current-alternating current converter.
The automatic control system applied to the smart home comprises a DC/AC converter, an electrolytic cell, a hydrogen tank, a fuel cell and a DC/DC converter, wherein the DC bus is connected with the electrolytic cell through the DC/AC converter, the electrolytic cell is connected with the hydrogen tank, the output end of the hydrogen tank is connected with the fuel cell, and the fuel cell is connected with the DC bus through the DC/DC converter.
As shown in fig. 1, which is a schematic view of an automatic control module according to the present invention, the automatic control system applied to smart home is described, the automatic control module comprises a detection unit, a prediction unit, an effective ratio adjusting unit, a hydrogen tank storage adjusting unit and an automatic control unit, the prediction unit is configured to predict an energy consumption amount of a home load, the detection unit is configured to detect an amount of power input to the load and an amount of storage in the hydrogen tank, the effective ratio adjustment unit is adapted to perform effective ratio adjustment based on the power value of the load detected by the detection unit and the power output from the fuel cell module, the hydrogen tank storage amount adjusting unit is used for adjusting the storage amount of the hydrogen tank according to the load data predicted by the predicting unit and the storage amount of the hydrogen tank detected by the detecting unit, the automatic control unit is used for integrating the electric quantity and the load condition of the whole house to carry out pre-allocation and later feedback correction.
The automatic control system applied to the smart home is characterized in that the hydrogen tank storage adjusting unit adjusts the storage capacity in the following way, and the stored energy of the hydrogen tank is calculated in the following way:
wherein E isstor1(t) stored energy at time t of the hydrogen tank, Estor1(t-1) is the energy stored at the moment t-1 of the hydrogen tank, and the unit is KWh, muiFor the ith photovoltaic panel, EPVi(t) is the power generation amount at the moment t of the ith photovoltaic panel, mujJ th blower input shapeForm factor, EWGj(t)) is the power generation amount at the time t of the jth fan, ηinvFor the efficiency of the converter, Eload(t) power demanded by the load, ηelectThe efficiency of the cell; i is 1 … N, j is 1 … M, and N and M are positive integers; pPEnergy transferred to the hydrogen tank for new energy;
the power lost when the photovoltaic energy and the fan energy are transmitted to the hydrogen tank is respectively as follows: plossi、Plossj
Wherein, BikFor the transmission loss rate of photovoltaic panel energy to the hydrogen tank, BjkThe loss rate of the energy transmitted to the hydrogen tank by the fan is determined; d is a positive integer;
the calculated energy stored in the hydrogen tank is transmitted to the automatic control unit for storage, the automatic control unit calculates an energy matching value according to the energy stored in the hydrogen tank and the energy to be consumed by the load predicted by the prediction unit, when the energy matching value cannot meet the energy in the prediction time period, the automatic control unit performs first pre-allocation, adjusts the input state factors of the photovoltaic and the fan, adjusts the efficiency of the electrolytic cell, increases the energy stored in the hydrogen tank, and when the first pre-allocation cannot meet the energy in the prediction time period, performs second pre-allocation, adjusts Bik、BjkSelection of Bik、BjkThe middle and small photovoltaic and fan are put into use to supplement the energy stored in the hydrogen tank, other photovoltaic and fans directly supply the household load, and B is selected from small to large in sequenceik、BjkAnd the photovoltaic and the fan with small size are put into the system, the automatic control of the second pre-allocation is carried out, and the storage of the hydrogen tank is increased.
The automatic control system applied to the smart home is characterized in that the effective ratio adjusting unit adjusts the effective ratio in the following way,
wherein E isstor2(t) energy stored in the discharge state at time t of the hydrogen tank, Estor2(t-1) energy stored in the discharge state at the time of t-1 of the hydrogen tank, ηFCIs the efficiency of the fuel cell;
the effective ratio of hydrogen tank delivery to load is:
wherein, Pf(t) output power generated by the hydrogen tank, BfkTransmission loss rate, mu, for hydrogen tank to loadfThe state factor is input for the f-th hydrogen tank.
The automatic control system applied to the smart home is characterized in that the automatic control unit performs feedback correction in the following way, and calculates the storage surplus E of the hydrogen tankstor(t)，
Estor(t)＝Estor1(t)-Estor2(t)
Judgment Estor(t) whether it is greater than 0, if so, the automatic control unit comparing the data predicted by the prediction unit with the actual operating data of the load detected by the detection unit, if the predicted data is the same as the detected data or if the predicted data is less than the detected data, the automatic control unit adjusting the pre-deployment control strategy to reduce the pre-deployment stored energy to the hydrogen tank, if the predicted data is greater than the detected data, the automatic control unit does not change the current pre-deployment strategy;
judgment Estor(t) if equal to 0, the automatic control unit calls the time equal to 0, judges if the time is consistent with the predicted time length, if so, the current automatic control mode is kept, if not, the pre-adjusted control strategy adjusted by the automatic control unit is increased, and the pre-adjusted control strategy is pre-adjusted to the hydrogen tankStoring energy, adding an extra margin value in the next pre-adjustment, and selecting a proper extra margin value through multiple tests.
Fig. 3 is a schematic diagram of an automatic control method for smart home according to the present invention.
A control method applied to an automatic control system of smart home as described in any one of the above, predict the energy consumption of the household load through a prediction unit, detect the power value input to the load and the storage capacity in the hydrogen tank through a detection unit, perform effective rate adjustment according to the power value of the load detected by the detection unit and the power output by the fuel cell module through an effective rate adjustment unit, perform storage capacity adjustment of the hydrogen tank according to the load data predicted by the prediction unit and the storage capacity of the hydrogen tank detected by the detection unit through the hydrogen tank storage adjustment unit, and perform pre-allocation and post-feedback correction by integrating the electric quantity and the load condition of the whole household through an automatic control unit;
the hydrogen tank storage adjustment unit performs storage amount adjustment by,
the stored energy of the hydrogen tank is calculated by:
wherein E isstor1(t) stored energy at time t of the hydrogen tank, Estor1(t-1) is the stored energy at time t-1 of the hydrogen tank, μiFor the ith photovoltaic panel, EPVi(t) is the power generation amount at the moment t of the ith photovoltaic panel, mujJ-th fan input state factor, EWGj(t)) is the power generation amount at the time t of the jth fan, ηinvFor the efficiency of the converter, Eload(t) power demanded by the load, ηelectThe efficiency of the cell; i is 1 … N, j is 1 … M, and N and M are positive integers; pPEnergy transferred to the hydrogen tank for new energy;
the power lost when the photovoltaic energy and the fan energy are transmitted to the hydrogen tank is respectively as follows: plossi、Plossj
Wherein, BikFor the transmission loss rate of photovoltaic panel energy to the hydrogen tank, BjkThe loss rate of the energy transmitted to the hydrogen tank by the fan is determined; d is a positive integer;
the calculated energy stored in the hydrogen tank is transmitted to the automatic control unit for storage, the automatic control unit calculates an energy matching value according to the energy stored in the hydrogen tank and the energy to be consumed by the load predicted by the prediction unit, when the energy matching value cannot meet the energy in the prediction time period, the automatic control unit performs first pre-allocation, adjusts the input state factors of the photovoltaic and the fan, adjusts the efficiency of the electrolytic cell, increases the energy stored in the hydrogen tank, and when the first pre-allocation cannot meet the energy in the prediction time period, performs second pre-allocation, adjusts Bik、BjkSelection of Bik、BjkThe middle and small photovoltaic and fan are put into use to supplement the energy stored in the hydrogen tank, other photovoltaic and fans directly supply the household load, and B is selected from small to large in sequenceik、BjkThe photovoltaic and the fan with medium and small investment are automatically controlled for the second pre-allocation, and the storage of the hydrogen tank is increased;
the effective ratio adjusting unit performs effective ratio adjustment by,
wherein E isstor2(t) storage of discharge state at time t of hydrogen tankEnergy of (E)stor2(t-1) energy stored in the discharge state at the time of t-1 of the hydrogen tank, ηFCIs the efficiency of the fuel cell;
the effective ratio of hydrogen tank delivery to load is:
wherein, Pf(t) output power generated by the hydrogen tank, BfkTransmission loss rate, mu, for hydrogen tank to loadfA state factor is input into the f-th hydrogen tank;
the automatic control unit performs feedback correction by calculating the storage residual amount E of the hydrogen tankstor(t)，
Estor(t)＝Estor1(t)-Estor2(t)
Judgment Estor(t) whether it is greater than 0, if so, the automatic control unit comparing the data predicted by the prediction unit with the actual operating data of the load detected by the detection unit, if the predicted data is the same as the detected data or if the predicted data is less than the detected data, the automatic control unit adjusting the pre-deployment control strategy to reduce the pre-deployment stored energy to the hydrogen tank, if the predicted data is greater than the detected data, the automatic control unit does not change the current pre-deployment strategy;
judgment EstorAnd (t) if the sum is equal to 0, the automatic control unit calls the time equal to 0, judges whether the time is consistent with the predicted time length, if so, the current automatic control mode is kept, if not, the pre-adjusted control strategy adjusted by the automatic control unit increases the pre-adjusted stored energy distributed to the hydrogen tank, and adds an extra margin value during next pre-adjustment, and selects a proper extra margin value through multiple tests.
The invention provides an automatic system and a control method for automatic control in smart home, which can adjust the whole internal circulation in the smart home by arranging an effective ratio adjusting unit and a hydrogen tank storage adjusting unitThrough pre-allocation and feedback correction adjustment, the control precision and response speed of automatic control equipment are improved, and the automatic control performance of automatic control is improved. One of the main improvements of the invention is that the calculated energy stored in the hydrogen tank is transmitted to the automatic control unit for storage, the automatic control unit calculates an energy matching value according to the energy stored in the hydrogen tank and the energy to be consumed by the load predicted by the prediction unit, and when the calculated energy matching value cannot meet the energy in the prediction time period, the first pre-allocation is carried out, and the input state factors of the photovoltaic and the fan are adjusted; the other improvement point of the invention is that the pre-control mode is carried out at least twice for allocation, the efficiency of the electrolytic cell is adjusted, the energy stored in the hydrogen tank is increased, when the energy in the predicted time period can not be met by the first pre-allocation, the second pre-allocation is carried out, and B is adjustedik、BjkSelection of Bik、BjkThe middle and small photovoltaic and fan are put into use to supplement the energy stored in the hydrogen tank, other photovoltaic and fans directly supply the household load, and B is selected from small to large in sequenceik、BjkThe photovoltaic and the fan with medium and small investment are automatically controlled for the second pre-allocation, and the storage of the hydrogen tank is increased; as a further improvement of the present invention, feedback modification adjustments can be made by determining EstorAnd (t) correcting the automatic control effect of the automatic control unit by the feedback value of (t), and improving the accuracy of automatic control.
Claims (4)
1. The utility model provides an automatic control system for intelligent house which characterized in that includes: the system comprises a household load, a photovoltaic panel, a micro fan, a fuel cell module and an automatic control module, wherein the automatic control module adjusts the running states and modes of the photovoltaic panel and the micro fan in the intelligent household according to the effective rate of the fuel cell module transmitted to the load and the stored energy of a hydrogen tank in the fuel cell module, so as to realize automatic energy supply matching of the household load; the household load comprises a direct current load and an alternating current load, the direct current load is connected with a direct current bus, and the alternating current load is connected with an alternating current bus; the photovoltaic panel is connected with a direct current bus through a direct current converter, the fan is connected with the direct current bus through an alternating current-direct current converter, and then is connected with an alternating current bus through a direct current-alternating current converter; the fuel cell module comprises a DC/AC converter, an electrolytic cell, a hydrogen tank, a fuel cell and a DC/DC converter, the DC bus is connected with the electrolytic cell through the DC/AC converter, the electrolytic cell is connected with the hydrogen tank, the output end of the hydrogen tank is connected with the fuel cell, and the fuel cell is connected with the DC bus through the DC/DC converter; the automatic control module comprises a detection unit, a prediction unit, an effective ratio adjusting unit, a hydrogen tank storage adjusting unit and an automatic control unit, wherein the prediction unit is used for predicting the energy consumption of the household load, the detection unit is used for detecting the power value input to the load and the storage amount in the hydrogen tank, the effective ratio adjusting unit is used for adjusting the effective ratio according to the power value required by the load and the efficiency value of the fuel cell, the hydrogen tank storage adjusting unit is used for adjusting the storage amount of the hydrogen tank according to the load data predicted by the prediction unit and the storage amount of the hydrogen tank detected by the detection unit, and the automatic control unit is used for carrying out pre-allocation and later feedback correction by integrating the electric quantity and the load condition of the whole household; the effective ratio adjusting unit performs effective ratio adjustment by,
wherein E isstor2(t) energy stored in the discharge state at time t of the hydrogen tank, Estor2(t-1) energy stored in the discharge state at the time of t-1 of the hydrogen tank, ηFCIs the efficiency of the fuel cell; pPEnergy transferred to the hydrogen tank for new energy; eload(t) power demanded by the load;
the effective ratio of hydrogen tank delivery to load is:
wherein, Pf(t) output power generated by the hydrogen tank, BfkTransmission loss rate, mu, for hydrogen tank to loadfThe f-th hydrogen tank input state factor is D, and D is a positive integer.
2. The automatic control system applied to smart home of claim 1, wherein the hydrogen tank storage adjustment unit performs storage amount adjustment by the following method,
the stored energy of the hydrogen tank is calculated by:
wherein E isstor1(t) stored energy at time t of the hydrogen tank, Estor1(t-1) is the stored energy at the moment of the hydrogen tank t-1, and the units are Kwh and muiFor the ith photovoltaic panel, EPVi(t) is the power generation amount at the moment t of the ith photovoltaic panel, mujJ-th fan input state factor, EWGj(t) is the power generation amount of the jth fan at the time t, etainvFor the efficiency of the converter, Eload(t) power demanded by the load, ηelectThe efficiency of the cell; i is 1 … N, j is 1 … M, and N and M are positive integers; pPEnergy transferred to the hydrogen tank for new energy;
the power lost when the photovoltaic energy and the fan energy are transmitted to the hydrogen tank is respectively as follows: plossi、Plossj
Wherein, BikFor the transmission loss rate of photovoltaic panel energy to the hydrogen tank, BjkThe loss rate of the energy transmitted to the hydrogen tank by the fan is determined; d is a positive integer;
the calculated energy stored in the hydrogen tank is transmitted to the automatic control unit for storage, the automatic control unit calculates an energy matching value according to the energy stored in the hydrogen tank and the energy to be consumed by the load predicted by the prediction unit, when the energy matching value cannot meet the energy in the prediction time period, the automatic control unit performs first pre-allocation, adjusts the input state factors of the photovoltaic and the fan, adjusts the efficiency of the electrolytic cell, increases the energy stored in the hydrogen tank, and when the first pre-allocation cannot meet the energy in the prediction time period, performs second pre-allocation, adjusts Bik、BjkSelection of Bik、BjkThe middle and small photovoltaic and fan are put into use to supplement the energy stored in the hydrogen tank, other photovoltaic and fans directly supply the household load, and B is selected from small to large in sequenceik、BjkAnd the photovoltaic and the fan with small size are put into the system, the automatic control of the second pre-allocation is carried out, and the storage of the hydrogen tank is increased.
3. The automatic control system applied to smart home as claimed in claim 2, wherein the automatic control unit performs feedback correction by calculating a storage remaining amount E of the hydrogen tankstor(t)，
Estor(t)＝Estor1(t)-Estor2(t)
Judgment Estor(t) whether it is greater than 0, if so, the automatic control unit comparing the data predicted by the prediction unit with the actual operating data of the load detected by the detection unit, if the predicted data is the same as the detected data or if the predicted data is less than the detected data, the automatic control unit adjusting the pre-deployment control strategy to reduce the pre-deployment stored energy to the hydrogen tank, if the predicted data is greater than the detected data, the automatic control unit does not change the current pre-deployment strategy;
judgment EstorIf (t) is equal to 0, thenThe automatic control unit calls a time equal to 0, judges whether the time is consistent with the predicted time length, if so, the current automatic control mode is kept, if not, the automatic control unit adjusts a pre-dispatching control strategy to increase the pre-dispatching stored energy to the hydrogen tank, and adds an extra margin value during the next pre-dispatching, and through multiple tests, a proper extra margin value is selected.
4. A control method applied to an automatic control system of smart home as claimed in any one of claims 1 to 3,
predicting the energy consumption of the household load through a prediction unit, detecting a power value input to the load and the storage capacity in a hydrogen tank through a detection unit, adjusting the effective ratio according to the power value required by the load and the efficiency value of the fuel cell through an effective ratio adjusting unit, adjusting the storage capacity of the hydrogen tank according to the load data predicted by the prediction unit and the storage capacity of the hydrogen tank detected by the detection unit through the hydrogen tank storage adjusting unit, and performing pre-allocation and later-period feedback correction by integrating the electric quantity and the load condition of the whole household through an automatic control unit;
the hydrogen tank storage adjustment unit performs storage amount adjustment by,
the stored energy of the hydrogen tank is calculated by:
wherein E isstor1(t) stored energy at time t of the hydrogen tank, Estor1(t-1) is the stored energy at time t-1 of the hydrogen tank, μiFor the ith photovoltaic panel, EPVi(t) is the power generation amount at the moment t of the ith photovoltaic panel, mujJ th blower input shapeForm factor, EWGj(t) is the power generation amount of the jth fan at the time t, etainvFor the efficiency of the converter, Eload(t) power demanded by the load, ηelectThe efficiency of the cell; i is 1 … N, j is 1 … M, and N and M are positive integers; pPEnergy transferred to the hydrogen tank for new energy;
the power lost when the photovoltaic energy and the fan energy are transmitted to the hydrogen tank is respectively as follows: plossi、Plossj
Wherein, BikFor the transmission loss rate of photovoltaic panel energy to the hydrogen tank, BjkThe loss rate of the energy transmitted to the hydrogen tank by the fan is determined; d is a positive integer;
the calculated energy stored in the hydrogen tank is transmitted to the automatic control unit for storage, the automatic control unit calculates an energy matching value according to the energy stored in the hydrogen tank and the energy to be consumed by the load predicted by the prediction unit, when the energy matching value cannot meet the energy in the prediction time period, the automatic control unit performs first pre-allocation, adjusts the input state factors of the photovoltaic and the fan, adjusts the efficiency of the electrolytic cell, increases the energy stored in the hydrogen tank, and when the first pre-allocation cannot meet the energy in the prediction time period, performs second pre-allocation, adjusts Bik、BjkSelection of Bik、BjkThe middle and small photovoltaic and fan are put into use to supplement the energy stored in the hydrogen tank, other photovoltaic and fans directly supply the household load, and B is selected from small to large in sequenceik、BjkThe photovoltaic and the fan with medium and small investment are automatically controlled for the second pre-allocation, and the storage of the hydrogen tank is increased;
the effective ratio adjusting unit performs effective ratio adjustment by,
wherein E isstor2(t) energy stored in the discharge state at time t of the hydrogen tank, Estor2(t-1) energy stored in the discharge state at the time of t-1 of the hydrogen tank, ηFCIs the efficiency of the fuel cell;
the effective ratio of hydrogen tank delivery to load is:
wherein, Pf(t) output power generated by the hydrogen tank, BfkTransmission loss rate, mu, for hydrogen tank to loadfA state factor is input into the f-th hydrogen tank;
the automatic control unit performs feedback correction by calculating the storage residual amount E of the hydrogen tankstor(t)，
Estor(t)＝Estor1(t)-Estor2(t)
Judgment Estor(t) whether it is greater than 0, if so, the automatic control unit comparing the data predicted by the prediction unit with the actual operating data of the load detected by the detection unit, if the predicted data is the same as the detected data or if the predicted data is less than the detected data, the automatic control unit adjusting the pre-deployment control strategy to reduce the pre-deployment stored energy to the hydrogen tank, if the predicted data is greater than the detected data, the automatic control unit does not change the current pre-deployment strategy;
judgment Estor(t) if equal to 0, the automatic control unit calls the time equal to 0, judges if the time is consistent with the predicted time length, if so, the current automatic control mode is kept, if not, the pre-adjusted control strategy adjusted by the automatic control unit increases the pre-adjusted stored energy to the hydrogen tank, and an extra margin value is added in the next pre-adjustmentAnd selecting a proper extra margin value through multiple tests.
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