An intelligent energy storage system

Abstract

The utility model discloses an intelligent energy storage system, which includes a solar cell panel, an energy storage capacitor, a transistor switch unit, a filter unit, a photosensor, an electric energy release protection unit and a single chip microcomputer. The energy storage capacitor is electrically connected to the solar cell panel. The signal input end of the transistor switch unit is electrically connected to the energy storage capacitor, and the signal output end of the transistor switch unit is electrically connected to the filter unit. The filter unit is used to be electrically connected to a target electrical device. The photosensor is electrically connected to the single chip microcomputer. The electric energy release protection unit is electrically connected to the energy storage capacitor for releasing the electric energy of the energy storage capacitor. The single chip microcomputer is electrically connected to the transistor switch unit for controlling the on and off of the transistor switch unit. The utility model has the advantages of high stability and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage power supply, in particular to an intelligent energy storage system. Background Art

[0002] With the development of economy and the improvement of people's material living standards, the power load of power grid is also gradually increasing. In winter and summer, because residents' heating and cooling needs are concentrated in time periods, the daily power load fluctuates greatly. In order to ensure the supply of electricity to residents as much as possible during the peak period of power load, traditional technologies add wind power, solar energy and other renewable energy auxiliary power supply to share the power supply load of distribution stations.

[0003] At present, the installed capacity of wind power and photovoltaic power generation is growing rapidly, and energy storage systems are an important prerequisite for the popularization and application of renewable energy such as solar energy and wind energy. The energy storage system is an important means to improve the stability and safety of the power system by resolving the contradiction between the time difference between power generation and power consumption, as well as the impact of intermittent renewable energy generation directly connected to the grid. Especially in rural mountainous areas, solar energy storage systems are widely used. However, due to the poor stability and reliability of existing energy storage systems, they cannot meet the requirements. Utility Model Content

[0004] The technical problem solved by the utility model is to provide an intelligent energy storage system with high stability and reliability.

[0005] The utility model provides an intelligent energy storage system, which is used to supply power to target electrical equipment, and comprises a solar cell panel, an energy storage capacitor, a transistor switch unit, a filter unit, a photosensor, an electric energy release protection unit and a single chip computer, wherein the energy storage capacitor is electrically connected to the solar cell panel; the signal input end of the transistor switch unit is electrically connected to the energy storage capacitor, and the signal output end of the transistor switch unit is electrically connected to the filter unit; the filter unit is used to be electrically connected to the target electrical equipment; the photosensor is electrically connected to the single chip computer; the electric energy release protection unit is electrically connected to the energy storage capacitor, and is used to release the electric energy of the energy storage capacitor; the single chip computer is electrically connected to the transistor switch unit, and is used to control the on and off of the transistor switch unit.

[0006] Preferably, the intelligent energy storage system further comprises a status indicating unit, wherein the status indicating unit is electrically connected to the solar panel and is used to indicate a working status of the solar panel.

[0007] Preferably, the status indicating unit is a first diode, an anode of the first diode is electrically connected to the solar cell panel, a cathode of the first diode is electrically connected to the energy storage capacitor and a signal input end of the transistor switch unit, wherein the first diode is a light emitting diode.

[0008] Preferably, the transistor switch unit is a thyristor, the anode of the thyristor is electrically connected to the cathode of the first diode and the energy storage capacitor, the cathode of the thyristor is electrically connected to the filter unit, and the control electrode of the thyristor is electrically connected to the single chip computer.

[0009] Preferably, the electric energy release protection unit includes a first resistor, a first field effect transistor and a second field effect transistor, the first end of the first resistor is electrically connected to the energy storage capacitor, and the second end of the first resistor is electrically connected to the gate of the first field effect transistor; the source of the first field effect transistor is grounded, and the drain of the first field effect transistor is electrically connected to the first end of the first resistor; the source of the second field effect transistor is grounded, the drain of the second field effect transistor is electrically connected to the gate of the first field effect transistor, and the gate of the second field effect transistor is electrically connected to the filtering unit.

[0010] Preferably, the electric energy release protection unit also includes a second resistor and a third resistor, the first end of the second resistor is electrically connected to the first end of the first resistor, the second end of the second resistor is electrically connected to the drain of the first field effect transistor, and the drain of the first field effect transistor is electrically connected to the first end of the first resistor through the second resistor; the first end of the third resistor is electrically connected to the gate of the second field effect transistor, the second end of the third resistor is electrically connected to the filter circuit, and the gate of the second field effect transistor is electrically connected to the filter circuit through the third resistor.

[0011] Preferably, the electric energy release protection unit further includes a fourth resistor, a first end of the fourth resistor is electrically connected to the gate of the second field effect transistor, and a second end of the fourth resistor is electrically connected to the source of the second field effect transistor.

[0012] Preferably, the photosensor includes a fifth resistor and a sixth resistor, the first end of the fifth resistor is electrically connected to the single-chip computer, and the second end of the fifth resistor is electrically connected to the first end of the sixth resistor; the first end of the sixth resistor is electrically connected to the single-chip computer, and the second end of the sixth resistor is grounded, wherein the sixth resistor is a photoresistor.

[0013] Preferably, the filtering unit includes an inductor and a filtering capacitor, the first end of the inductor is electrically connected to the signal output end of the transistor switching unit, and the second end of the inductor is used to be electrically connected to the target electrical equipment; the first end of the filtering capacitor is electrically connected to the second end of the inductor, and the second end of the filtering capacitor is grounded.

[0014] Preferably, the filtering unit further includes a second diode, an anode of the second diode is grounded, and a cathode of the second diode is electrically connected to the first end of the first inductor.

[0015] The utility model has the following beneficial effects: the utility model is characterized in that the energy storage capacitor is electrically connected to the solar panel through the cooperation between the solar panel, the energy storage capacitor, the transistor switch unit, the filter unit, the photosensor, the power release protection unit and the single chip microcomputer. The signal input end of the transistor switch unit is electrically connected to the energy storage capacitor, and the signal output end of the transistor switch unit is electrically connected to the filter unit. The filter unit is used to be electrically connected to the target electrical equipment. The photosensor is electrically connected to the single chip microcomputer. The power release protection unit is electrically connected to the energy storage capacitor for releasing the electrical energy of the energy storage capacitor. The single chip microcomputer is electrically connected to the transistor switch unit for controlling the on and off of the transistor switch unit. Therefore, the energy storage capacitor can be charged by the solar panel during the day. After the photosensor detects that it is night, the single chip microcomputer automatically controls the transistor switch unit to turn on to supply power to the target electrical equipment. When the target electrical equipment stops working, the excess electrical energy of the energy storage capacitor can also be released by the power release protection unit, so the target electrical equipment can be well protected, and the utility model has the advantages of high stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a circuit diagram of the intelligent energy storage system of the utility model. DETAILED DESCRIPTION

[0017] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that, if there is no conflict, the embodiments of the present invention and the various features in the embodiments can be combined with each other, all within the protection scope of the present invention.

[0018] See also Figure 1 The utility model provides an intelligent energy storage system for supplying power to target electrical equipment, which includes a solar panel Vcc, an energy storage capacitor C1, a transistor switch unit 1, a filter unit 2, a photosensor 3, an energy release protection unit 4 and a single-chip computer U. The energy storage capacitor C1 is electrically connected to the solar panel Vcc. The signal input end of the transistor switch unit 1 is electrically connected to the energy storage capacitor C1, and the signal output end of the transistor switch unit 1 is electrically connected to the filter unit 2. The filter unit 2 is used to be electrically connected to the target electrical equipment. The photosensor 3 is electrically connected to the single-chip computer U. The energy release protection unit 4 is electrically connected to the energy storage capacitor C1, and is used to release the electric energy of the energy storage capacitor C1. The single-chip computer U is electrically connected to the transistor switch unit 1, and is used to control the on and off of the transistor switch unit 1.

[0019] The utility model intelligent energy storage system also includes a state indicating unit 5, which is electrically connected to the solar panel Vcc and is used to indicate the working state of the solar panel Vcc. The state indicating unit 5 is a first diode D1, the anode of the first diode D1 is electrically connected to the solar panel Vcc, the cathode of the first diode D1 is electrically connected to the energy storage capacitor C1 and the signal input end of the transistor switch unit 1, and the first diode D1 is a light emitting diode. When the solar panel Vcc is charging the energy storage capacitor C1, the first diode D1 emits light, so that the user can understand its working state.

[0020] The transistor switch unit 1 is a thyristor K, the anode of the thyristor K is electrically connected to the cathode of the first diode D1 and the energy storage capacitor C1, the cathode of the thyristor K is electrically connected to the filter unit 2, and the control electrode of the thyristor K is electrically connected to the single-chip computer U. The bidirectional thyristor K has reliable quality and excellent performance, and can control a large power with very small power. The control is sensitive, the response is fast, the thyristor K is turned on and off quickly, the loss is small, the volume is small, the weight is light, and the application scenario is wide.

[0021] The electric energy release protection unit 4 includes a first resistor R1, a first field effect transistor Q1 and a second field effect transistor Q2. The first end of the first resistor R1 is electrically connected to the energy storage capacitor C1, and the second end of the first resistor R1 is electrically connected to the gate of the first field effect transistor Q1. The source of the first field effect transistor Q1 is grounded, and the drain of the first field effect transistor Q1 is electrically connected to the first end of the first resistor R1. The source of the second field effect transistor Q2 is grounded, and the drain of the second field effect transistor Q2 is electrically connected to the gate of the first field effect transistor Q1, and the gate of the second field effect transistor Q2 is electrically connected to the filter unit 2.

[0022] The electric energy release protection unit 4 also includes a second resistor R2 and a third resistor R3, wherein the first end of the second resistor R2 is electrically connected to the first end of the first resistor R1, the second end of the second resistor R2 is electrically connected to the drain of the first field effect transistor Q1, and the drain of the first field effect transistor Q1 is electrically connected to the first end of the first resistor R1 through the second resistor R2. The first end of the third resistor R3 is electrically connected to the gate of the second field effect transistor Q2, the second end of the third resistor R3 is electrically connected to the filter circuit, and the gate of the second field effect transistor Q2 is electrically connected to the filter circuit through the third resistor R3. The current is limited by the second resistor R2 and the third resistor R3, so that the first field effect transistor Q1 and the second field effect transistor Q2 can be better protected.

[0023] The electric energy release protection unit 4 further includes a fourth resistor R4, a first end of the fourth resistor R4 is electrically connected to the gate of the second field effect transistor Q2, and a second end of the fourth resistor R4 is electrically connected to the source of the second field effect transistor Q2. The fourth resistor R4 is used for voltage division, so when the voltage is too large, the second field effect transistor Q2 can be better protected, thereby extending the service life.

[0024] The photosensitive sensor 3 includes a fifth resistor R5 and a sixth resistor R6, wherein the first end of the fifth resistor R5 is electrically connected to the single-chip computer U, and is electrically connected to a reference voltage in the single-chip computer U. The second end of the fifth resistor R5 is electrically connected to the first end of the sixth resistor R6. The first end of the sixth resistor R6 is electrically connected to the single-chip computer U, and the second end of the sixth resistor R6 is grounded, wherein the sixth resistor R6 is a photoresistor. During the day, the photoresistor is irradiated by light, so the resistance is small, and the single-chip computer U identifies whether it is daytime or night by detecting the voltage on the first end of the sixth resistor R6. The single-chip computer U can be a single-chip computer U of the 51 series or the PIC series, etc. The circuit has the advantages of simple structure and low cost, which is conducive to promotion and application in rural areas.

[0025] The filter unit 2 includes an inductor L, a filter capacitor C2 and a second diode D2. The first end of the inductor L is electrically connected to the signal output end of the transistor switch unit 1, and the second end of the inductor L is used to be electrically connected to the target electrical equipment. The first end of the filter capacitor C2 is electrically connected to the second end of the inductor L, and the second end of the filter capacitor C2 is grounded. The anode of the second diode D2 is grounded, and the cathode of the second diode D2 is electrically connected to the first end of the first inductor L. By setting the second diode D2, when the voltage is too large, it can be released through the second diode D2, so that the electrical equipment can be better protected.

[0026] During the day, the single-chip microcomputer U controls the thyristor K to be closed, so that the solar cell charges the energy storage capacitor C1. At night, the single-chip microcomputer U controls the thyristor K to be opened, and the energy storage capacitor C1 can supply power to the target electrical equipment. At night, if the target electrical equipment stops working, the single-chip microcomputer U controls the thyristor K to be closed. At this time, the first field effect transistor Q1 is turned on and the second field effect transistor Q2 is turned off. Then, the excess electric energy of the energy storage capacitor C1 can be released through the first field effect transistor Q1, thereby better protecting the electronic components and electrical equipment.

[0027] In summary, the utility model is achieved by the cooperation between the solar panel Vcc, the energy storage capacitor C1, the transistor switch unit 1, the filter unit 2, the photosensor 3, the electric energy release protection unit 4 and the single chip computer U, so that the energy storage capacitor C1 is electrically connected to the solar panel Vcc. The signal input end of the transistor switch unit 1 is electrically connected to the energy storage capacitor C1, and the signal output end of the transistor switch unit 1 is electrically connected to the filter unit 2. The filter unit 2 is used to be electrically connected to the target electrical equipment. The photosensor 3 is electrically connected to the single chip computer U. The electric energy release protection unit 4 is electrically connected to the energy storage capacitor C1, and is used to release the electric energy of the energy storage capacitor C1. The single chip computer U is electrically connected to the transistor switch unit 1, and is used to control the on and off of the transistor switch unit 1. Therefore, the energy storage capacitor C1 can be charged by the solar panel Vcc during the day. After the photosensor 3 detects that it is night, the single chip computer U automatically controls the transistor switch unit 1 to turn on to power the target electrical equipment. When the target electrical equipment stops working, the excess electrical energy of the energy storage capacitor C1 can be released through the electrical energy release protection unit 4, so the target electrical equipment can be well protected, and it has the advantages of high stability and reliability.

[0028] The intelligent energy storage system provided by the utility model is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. At the same time, for those of ordinary skill in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification is only an implementation mode of the utility model, and it does not limit the patent scope of the utility model. All equivalent structures or equivalent process changes made by using the contents of the specification and drawings of the utility model, or directly or indirectly used in other related technical fields, are similarly included in the patent protection scope of the utility model and should not be understood as limitations on the utility model.

Claims

1. An intelligent energy storage system for supplying power to a target electrical device, characterized in that: It includes a solar panel, an energy storage capacitor, a transistor switch unit, a filtering unit, a photosensor, an electric energy release protection unit and a single-chip microcomputer, wherein the energy storage capacitor is electrically connected to the solar panel; the signal input end of the transistor switch unit is electrically connected to the energy storage capacitor, and the signal output end of the transistor switch unit is electrically connected to the filtering unit; the filtering unit is used to be electrically connected to the target electrical equipment; the photosensor is electrically connected to the single-chip microcomputer; the electric energy release protection unit is electrically connected to the energy storage capacitor for releasing the electric energy of the energy storage capacitor; the single-chip microcomputer is electrically connected to the transistor switch unit for controlling the on and off of the transistor switch unit.

2. The intelligent energy storage system according to claim 1, characterized in that: The intelligent energy storage system further comprises a status indicating unit, which is electrically connected to the solar panel and is used to indicate the working status of the solar panel.

3. The intelligent energy storage system according to claim 2, characterized in that: The state indicating unit is a first diode, an anode of the first diode is electrically connected to the solar cell panel, a cathode of the first diode is electrically connected to the energy storage capacitor and a signal input end of the transistor switch unit, wherein the first diode is a light emitting diode.

4. The intelligent energy storage system according to claim 3, characterized in that: The transistor switch unit is a thyristor, the anode of the thyristor is electrically connected to the cathode of the first diode and the energy storage capacitor, the cathode of the thyristor is electrically connected to the filter unit, and the control electrode of the thyristor is electrically connected to the single chip computer.

5. The intelligent energy storage system according to claim 1, characterized in that: The electric energy release protection unit includes a first resistor, a first field effect transistor and a second field effect transistor, wherein the first end of the first resistor is electrically connected to the energy storage capacitor, and the second end of the first resistor is electrically connected to the gate of the first field effect transistor; the source of the first field effect transistor is grounded, and the drain of the first field effect transistor is electrically connected to the first end of the first resistor; The source of the second field effect transistor is grounded, the drain of the second field effect transistor is electrically connected to the gate of the first field effect transistor, and the gate of the second field effect transistor is electrically connected to the filtering unit.

6. The intelligent energy storage system according to claim 5, characterized in that: The electric energy release protection unit also includes a second resistor and a third resistor, wherein the first end of the second resistor is electrically connected to the first end of the first resistor, the second end of the second resistor is electrically connected to the drain of the first field effect transistor, and the drain of the first field effect transistor is electrically connected to the first end of the first resistor through the second resistor; the first end of the third resistor is electrically connected to the gate of the second field effect transistor, the second end of the third resistor is electrically connected to the filter circuit, and the gate of the second field effect transistor is electrically connected to the filter circuit through the third resistor.

7. The intelligent energy storage system according to claim 6, characterized in that: The electric energy release protection unit further includes a fourth resistor, a first end of the fourth resistor is electrically connected to the gate of the second field effect transistor, and a second end of the fourth resistor is electrically connected to the source of the second field effect transistor.

8. The intelligent energy storage system according to claim 1, characterized in that: The photosensor includes a fifth resistor and a sixth resistor, wherein the first end of the fifth resistor is electrically connected to the single-chip computer, and the second end of the fifth resistor is electrically connected to the first end of the sixth resistor; the first end of the sixth resistor is electrically connected to the single-chip computer, and the second end of the sixth resistor is grounded, wherein the sixth resistor is a photoresistor.

9. The intelligent energy storage system according to claim 1, characterized in that: The filtering unit includes an inductor and a filtering capacitor, wherein the first end of the inductor is electrically connected to the signal output end of the transistor switch unit, and the second end of the inductor is used to be electrically connected to the target electrical equipment; the first end of the filtering capacitor is electrically connected to the second end of the inductor, and the second end of the filtering capacitor is grounded.

10. The intelligent energy storage system according to claim 9, characterized in that: The filtering unit further includes a second diode, an anode of the second diode is grounded, and a cathode of the second diode is electrically connected to the first end of the first inductor.

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