Test control device of household energy storage system

Abstract

The utility model relates to the field of household energy storage test systems, in particular to a test control device of a household energy storage system, a battery system is connected with a plurality of energy storage control systems, the test control device comprises a power supply unit and an ACDC conversion unit connected with the power supply unit, and the ACDC conversion unit is connected with a power supply touch button through a first resistor. The power supply touch button is connected with the plurality of restart logic control circuits, the plurality of restart logic control circuits are connected in parallel, the plurality of restart logic control circuits are correspondingly connected with the plurality of first control switches respectively, and the plurality of first control switches are arranged on loops between the battery system and the plurality of energy storage control systems respectively. The power supply touch button is connected with the plurality of mistaken electric shock prevention circuits, and the plurality of mistaken electric shock prevention circuits are correspondingly connected with the plurality of energy storage control systems, so that simultaneous testing of the plurality of energy storage control systems is realized, and the efficiency and stability of product development testing of the energy storage control systems are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of household storage test system, concretely relates to a test control device of household energy storage system. BACKGROUND

[0002] With the development of new energy technology, especially the maturity and popularity of solar photovoltaic and wind power generation technology, households and enterprises can produce electricity by themselves. In order to store the electricity generated by these intermittent energy sources, household energy storage systems have emerged. Household energy storage system is short for "household storage", which can support the use of new energy power such as photovoltaic power generation and wind power generation, and provide power guarantee for households and enterprises when the power grid is unstable or power off. It can also store electricity when the electricity price is low and use it during the peak period of electricity price, so as to optimize the cost of electricity and gradually become one of the important technical means to promote energy structure transformation and realize low-carbon life. Household energy storage system mainly consists of energy storage control system and battery system. Among them, the energy storage control system is the brain of the household energy storage system, responsible for monitoring, managing and controlling the operation of the whole system. The energy storage control system can include charge and discharge management, battery management system (BMS), energy management system (EMS), grid interaction control, etc., while the battery system is an important part of the household energy storage system responsible for storing electricity.

[0003] Since the energy storage control system is responsible for monitoring and managing the charging and discharging process of the battery system, improper control may cause battery overcharge, overdischarge, overheating and even fire, etc. Therefore, the energy storage control system must be tested in batches before leaving the factory, including control performance test and alarm test at all levels. In order to improve efficiency, the same battery system is usually used to test many energy storage control systems one by one. However, in the actual fault test of the energy storage control system, the energy storage control system must be restarted after most of the alarm simulation tests (such as simulating the triggering of three-level faults to test the emergency response ability of the system) to eliminate the fault and restore the normal work of the system for other fault tests. Each time the energy storage control system is restarted, the operator needs to go to the corresponding energy storage control system to perform manual restart operation. This process involves physical movement and manual operation, which not only significantly reduces the continuity of the fault test process, but also increases the instability of the fault test, making it difficult to avoid the situation of changing the state of the energy storage control system or test failure caused by the mistake of other operators touching the switch or button during the restart process or waiting for the fault simulation code to run. UTILITY MODEL CONTENTS

[0004] In view of the above technical problems, the utility model provides a test control device of household energy storage system, which aims to realize simultaneous testing of multiple energy storage control systems and improve the efficiency and stability of product development and testing of energy storage control systems.

[0005] The utility model discloses a test control device of household energy storage system, the household energy storage system includes battery system and energy storage control system, and the battery system is connected with a plurality of energy storage control systems, and the test control device includes power supply unit, the ACDC conversion unit of power supply unit connection, first resistance, power supply touch -control button, a plurality of restart logic control circuits, a plurality of first control switches and a plurality of false touch protection circuits, and the ACDC conversion unit is connected with the power supply touch -control button through the first resistance, and the power supply touch -control button is connected with a plurality of restart logic control circuits, and a plurality of restart logic control circuits are parallelly connected with each other, and a plurality of restart logic control circuits are connected with a plurality of first control switches respectively, and a plurality of first control switches are arranged on the loop between the battery system and a plurality of energy storage control systems respectively, and the power supply touch -control button is connected with a plurality of false touch protection circuits, and a plurality of false touch protection circuits are connected with a plurality of energy storage control systems respectively.

[0006] In some embodiments, the restart logic control circuit includes a restart touch -control button and a first relay coil, the first control switch is a first relay contact, one end of the restart touch -control button is connected with the power supply touch -control button, the other end of the restart touch -control button is connected with one end of the first relay coil, the first relay coil is connected with the corresponding first relay contact, and the other end of the first relay coil is grounded.

[0007] In some embodiments, the restart touch -control button is a normally open self-resetting button.

[0008] In some embodiments, the restart logic control circuit further includes a second relay coil and a second relay contact, the second relay coil is connected with the first relay coil in parallel, the second relay coil is connected with the second relay contact, and the second relay contact is arranged as a second control switch on the loop between the battery system and each energy storage control system.

[0009] In some embodiments, the false touch protection circuit includes an NPN transistor and a second resistance, and the test control device further includes a P-type MOS tube, the base of the NPN transistor is connected with the output end of the corresponding energy storage control system through the second resistance, the collector of the NPN transistor and the gate of the P-type MOS tube are connected with one end of the power supply touch -control button, the emitter of the NPN transistor is connected with the other end of the power supply touch -control button, the source of the P-type MOS tube is connected with the ACDC conversion unit, and the drain of the P-type MOS tube is connected with the restart touch -control button.

[0010] In some embodiments, a light emitting diode for visual prompting and a third resistance are further included, the anode of the light emitting diode is connected with the drain of the P-type MOS tube through the third resistance, and the cathode of the light emitting diode is connected with the ground end of the first relay coil.

[0011] In some embodiments, the power supply touch button is a normally open self-locking button.

[0012] In some embodiments, the first control switch and the second control switch are both normally closed switches.

[0013] The beneficial technical effects of the utility model at least include:

[0014] 1. The test control device of the household energy storage system adopts a control circuit for simultaneously preventing the power supply touch button from being mistakenly touched to cause the energy storage control system to change state or fail in the test, and for stably shutting down or restarting each energy storage control system, thereby realizing parallel test of multiple energy storage control systems, improving the efficiency and stability of product development and test of the energy storage control system, and specifically, the power supply touch button is touched by the operator to realize power supply on / off of the entire test control device, when the test control device is powered on, the first control switch is turned on or off through the restart logic control circuit, thereby realizing on / off of the main circuit between the battery system and the corresponding energy storage control system, and further realizing power-off shutdown or power-on restart of each energy storage control system and parallel fault test of multiple energy storage control systems, greatly improving the continuity of the fault test process, and the stability of product development and test of the energy storage control system is improved by the anti-mistaken-touch circuit to prevent the energy storage control system from changing state or failing in the test due to mistaken touch of the power supply touch button by other operators during the restart process or when waiting for the fault simulation code to run.

[0015] 2. The restart logic control circuit is constructed by the restart touch button, the first relay coil and the first relay contact, which not only realizes electrical isolation of the control circuit and the main circuit, but also indirectly controls on / off of the main circuit between the battery system and the corresponding energy storage control system through electromagnetic principle under the touch of the operator, thereby realizing power-off shutdown or power-on restart of each energy storage control system and parallel fault test of multiple energy storage control systems, greatly improving the continuity of the fault test process and the flexibility and safety of the restart control of the energy storage control system during the fault test process.

[0016] 3. The anti-mistaken-touch circuit is constructed by the NPN transistor, the P-type MOS tube and the output power supply of the energy storage control system, which effectively prevents the energy storage control system from changing state or failing in the test due to mistaken touch of the switch or button by other operators during the restart process or when waiting for the fault simulation code to run, greatly improves the stability of product development and test of the energy storage control system, and the transistor and the MOS tube have fast response speed and can quickly respond to changes in the power supply state to ensure stable power supply of the test control device in time.

[0017] The other features and advantages of the present application will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described in conjunction with the accompanying drawings:

[0019] Figure 1 The overall structure of the test control device is shown in the embodiment of the present application. DETAILED DESCRIPTION

[0020] The technical solutions of the embodiments of the present application will be explained and described in conjunction with the drawings of the embodiments of the present application, but the following embodiments are only preferred embodiments of the present application, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

[0021] In the following description, the appearance of terms such as "inner", "outer", "upper", "lower", "left", "right" and the like indicates the orientation or positional relationship only for the convenience of describing the embodiments and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0022] Please refer to the accompanying Figure 1 The test control device of the household energy storage system is provided in the embodiments of the present application.

[0023] In the embodiment, the battery system is connected with n energy storage control systems, and the test control device can at least include a power supply unit, an ACDC conversion unit connected with the power supply unit, a first resistor R1, a power supply touch button SA, n restart logic control circuits, n first control switches and n anti-misoperation circuits, wherein the ACDC conversion unit is connected with the power supply touch button SA through the first resistor R1, the power supply touch button SA is connected with the n restart logic control circuits, the n restart logic control circuits are connected in parallel with each other, the n restart logic control circuits are connected with the n first control switches correspondingly, the n first control switches are arranged on the loop between the battery system and the n energy storage control systems, the power supply touch button SA is connected with the n anti-misoperation circuits, and the n anti-misoperation circuits are connected with the n energy storage control systems correspondingly.

[0024] The energy storage control system is the object to be tested. The power supply unit in the embodiment is used to supply power to the test control device. The ACDC conversion unit refers to an electronic device or circuit for converting alternating current (AC) into direct current (DC), including but not limited to rectifier diode, bridge rectifier, transformer, linear voltage regulator IC, etc., which is not limited in the embodiment.

[0025] It can be understood that the embodiment designs a control loop for portable control of power supply between the battery system and each energy storage control system, and simultaneous prevention of state change or test failure of the energy storage control system caused by false touch of the power supply touch button SA, so as to realize stable shutdown or restart operation of each energy storage control system, thereby realizing parallel test of multiple energy storage control systems, and improving the efficiency and stability of product development and test of the energy storage control system. Specifically, the power supply touch button SA realizes power supply on-off of the entire test control device under touch of the operator. When the test control device is powered on, the on-off of the corresponding first control switch can be realized through the restart logic control circuit, so as to realize the on-off of the main loop between the battery system and the corresponding energy storage control system, and further realize power-off shutdown or power-on restart of each energy storage control system and parallel fault test of multiple energy storage control systems, greatly improve the continuity of the fault test process, and at the same time, the protection of the energy storage control system from state change or test failure caused by false touch of the power supply touch button SA by other operators during the restart process or waiting for the fault simulation code to run, improves the stability of product development and test of the energy storage control system.

[0026] Further, in the embodiment, the restart logic control circuit includes a restart touch button SB1 and a first relay coil KM11, the first control switch is a first relay contact KM11', one end of the restart touch button SB1 is connected with the power supply touch button SA, the other end of the restart touch button SB1 is connected with one end of the first relay coil KM11, the first relay coil KM11 is connected with the corresponding first relay contact KM11', and the other end of the first relay coil KM11 is grounded.

[0027] It can be understood that the above-mentioned corresponding description of the structural scheme is only a specific structure of one restart logic control circuit, and the restart touch buttons in the remaining restart logic control circuits are shown as SB2-SBn in Figure 1 , the first relay coils in the remaining restart logic control circuits are shown as KM21-KMn1 in Figure 1 , and the first control switches provided between the battery system and the n energy storage control systems are shown as KM21'-KMn1' in Figure 1 .

[0028] Wherein, the first relay coil KM11 is connected with the corresponding first relay contact KM11', which means that when the first relay coil KM11 is powered by current, a magnetic field is generated, which acts on the first relay contact KM11' to realize the contact or disconnection of the first relay contact KM11'. This mechanical action is controlled by the power-on state of the first relay coil KM11, thereby realizing the conversion of electrical signal to mechanical action, and ultimately achieving the purpose of controlling the circuit switch.

[0029] By restarting the touch button, the first relay coil and the first relay contact build a restart logic control circuit, not only realizing the electrical isolation of the control loop and the main loop, but also indirectly controlling the main loop on-off between the battery system and the corresponding energy storage control system through electromagnetic principle under the touch of the operator, thereby realizing the power-off shutdown or power-on restart of each energy storage control system and the parallel fault test of multiple energy storage control systems, greatly improving the continuity of the fault test process and the flexibility and safety of the restart control of the energy storage control system in the fault test process.

[0030] Further, in the embodiment, the restart touch button is a normally open self-reset button.

[0031] Wherein, the normally open self-reset button refers to a normally open button whose state is not maintained. Specifically, when the normally open self-reset button is pressed, the contact will be closed, but after the finger releases the normally open self-reset button, the contact will automatically pop back (reset) to the open state. That is, each time the restart touch button is pressed, a cycle of opening / closing is completed, which means that the on state of the restart logic control circuit is only maintained during the pressing of the restart touch button.

[0032] By designing the restart touch button as a normally open self-reset button, the stability of product development and testing of the energy storage control system can be further improved. Specifically, designing the restart touch button as a normally open self-reset button ensures that each restart operation of the energy storage control system is short, which makes the fault test process more controllable, and the operator can more accurately control the restart time of the energy storage control system. Moreover, in the fault simulation test process, if it is necessary to urgently stop a certain energy storage control system, the normally open self-reset button can quickly disconnect the power supply circuit of the battery system to the corresponding energy storage control system, reducing the safety risk.

[0033] Further, in the embodiment, the restart logic control circuit further comprises a second relay coil KM12 and a second relay contact KM12', the second relay coil KM12 is connected in parallel with the first relay coil KM11, the second relay coil KM12 is connected with the second relay contact KM12', and the second relay contact KM12' is arranged as a second control switch on the loop between the battery system and each energy storage control system.

[0034] It can be understood that the above-described structure scheme is only a specific structure of the restart logic control circuit, and the second relay coil in the remaining restart logic control circuit is as shown in KM22-KMn2. Figure 1 The second control switch arranged on the loop between the battery system and the n energy storage control systems is as shown in KM22'-KMn2'. Figure 1 The second control switch arranged on the loop between the battery system and the n energy storage control systems is as shown in KM22'-KMn2'.

[0035] Further, in the embodiment, the first control switch and the second control switch are both normally closed switches.

[0036] By arranging two relay switches in the restart logic control circuit, a redundant control path is provided, if one of the relay control switches fails, the other relay control switch can take over the control task, and the test control device can still safely disconnect the main loop between the battery system and the corresponding energy storage control system to realize the restart operation of the energy storage control system, avoiding potential safety risks caused by single point failure, thereby improving the reliability of the test control device. At the same time, when a certain relay control switch is found to be problematic during the test process, it can be easily disconnected and replaced without affecting the normal fault test operation of the entire energy storage control system, because the other relay control switch can still maintain the connectivity of the circuit.

[0037] Further, in the embodiment, the anti-misoperation circuit includes an NPN transistor T1 and a second resistor R21, and the test control device further includes a P-type MOS tube, the base of the NPN transistor T1 is connected to the output end of the corresponding energy storage control system through the second resistor R21, the collector of the NPN transistor T1 and the gate of the P-type MOS tube are both connected to one end of a power supply touch button SA, the emitter of the NPN transistor T1 is connected to the other end of the power supply touch button SA, the source of the P-type MOS tube is connected to an ACDC conversion unit, and the drain of the P-type MOS tube is connected to a restart touch button SB1.

[0038] It can be understood that the above-described structure scheme is only a specific structure of the restart logic control circuit, and the second relay coil in the remaining restart logic control circuit is as shown in KM22-KMn2. Figure 1 The second control switch arranged on the loop between the battery system and the n energy storage control systems is as shown in KM22'-KMn2'. Figure 1 The second control switch arranged on the loop between the battery system and the n energy storage control systems is as shown in KM22'-KMn2'.

[0039] Further, please refer to the accompanying Figure 1 In the embodiment, a light-emitting diode W for visual prompting and a third resistor are further included, the anode of the light-emitting diode W is connected to the drain of the P-type MOS tube through the third resistor, and the cathode of the light-emitting diode W is connected to the ground end of the first relay coil.

[0040] It can be understood that the light-emitting diode W is used to emit a visual reminder when the entire test control device is powered on, that is, during the period when the light-emitting diode W emits a visual reminder, the operator can realize the on-off of the corresponding first control switch through the restart logic control circuit, so as to realize the on-off of the main loop between the battery system and the corresponding energy storage control system, and further to realize the power-off shutdown or power-on restart of each energy storage control system and the parallel fault test of multiple energy storage control systems.

[0041] The arrangement of the light-emitting diode W in the test control device in the embodiment provides a clear power-on state indication (power on or power off), which enables the operator to quickly determine the power-on state of the test control device and make corresponding operations.

[0042] Further, in the embodiment, the power supply touch button SA is a normally open self-locking button.

[0043] The normally open self-locking button refers to a normally open button that maintains the state. Specifically, when the normally open self-locking button is pressed, the contact will be closed, and after the finger releases the normally open self-locking button, the contact will remain closed until the button is pressed again. That is, two operations are required to complete a complete on / off cycle, which means that the power supply unit only needs to be pressed once to maintain the power supply state of the entire test control device.

[0044] By designing the power supply touch button SA as a normally open self-reset button, the continuity of the power supply of the test control device is ensured for tests that need to be continuously run or cannot be interrupted, which helps to further improve the stability of product development tests of the energy storage control system to a certain extent.

[0045] Specifically, the implementation principle of the anti-misoperation circuit in the test control device is as follows:

[0046] When the energy storage control system is not connected to the anti-misoperation circuit, that is, the energy storage control system does not output power to the anti-misoperation circuit, after the power supply touch button SA is pressed, the power supply unit supplies power to the entire test control device. At this time, the P-type MOS tube Vs>Vg, the P-type MOS is turned on, and the light-emitting diode W is powered on to emit a visual reminder. If the restart touch button (normally open self-reset button) SB1-SBn is not pressed, the first relay coil KM11 and the second relay coil KM12 are not powered, and the first control switch KM11' (normally closed switch) and the second control switch KM12' (normally closed switch) are maintained closed.

[0047] If the energy storage control system accesses the anti-misoperation circuit at this time, the emitter of the NPN transistor T1 is forward biased, the collector is reverse biased, the NPN transistor T1 is saturated and turned on, the power supply touch button SA is short-circuited after the NPN transistor T1 is turned on, therefore, even if the power supply touch button SA is misoperated to be opened at this time, the P-type MOS tube is still Vs>Vg, the P-type MOS is maintained to be turned on, and the light-emitting diode W is maintained to emit visual reminders; if the restart touch buttons (normally open self-resetting buttons) SB1-SBn are not pressed, the first relay coil KM11 and the second relay coil KM12 are not electrified, and the first control switch KM11' (normally closed switch) and the second control switch KM12' (normally closed switch) are maintained to be closed;

[0048] Therefore, when one of the conditions that the energy storage control system accesses the anti-misoperation circuit or the power supply touch button SA is closed is met, the restart touch buttons (normally open self-resetting buttons) SB1-SBn are pressed, the first relay coil KM11 and the second relay coil KM12 are electrified, the first control switch KM11' (normally closed switch) and the second control switch KM12' (normally closed switch) are opened, the main circuit between the battery system and the energy storage control system is disconnected, and the energy storage control system is powered off; until the restart touch buttons (normally open self-resetting buttons) SB1-SBn are released, the first control switch KM11' (normally closed switch) and the second control switch KM12' (normally closed switch) are closed, the main circuit between the battery system and the energy storage control system is connected, and the energy storage control system is powered on and restarted, at this time, the three faults have been eliminated, and other fault tests can be performed.

[0049] The anti-misoperation circuit is constructed by combining the NPN transistor, the P-type MOS tube and the output power supply of the energy storage control system, the situation that the energy storage control system state is changed or the test fails due to misoperation of other operators on the switch or the button during the restart process or when waiting for the fault simulation code to run is effectively avoided, the stability of product development and test of the energy storage control system is greatly improved, and the response speed of the transistor and the MOS tube is fast, the power supply state change can be quickly responded, and the power supply stability of the test control device is timely ensured.

[0050] The above merely illustrates the specific implementation manners of the present application, but the protection scope of the present application is not limited to this, and those skilled in the art should understand that the present application includes but is not limited to the contents described in the drawings and the above specific implementation manners. Any modification without deviating from the function and structural principle of the present application shall be included in the scope of the claims.

Claims

1. A test control device for a residential energy storage system, the residential energy storage system comprising a battery system and an energy storage control system, characterized by, The battery system is connected with a plurality of energy storage control systems, and the test control device comprises a power supply unit, an ACDC conversion unit connected with the power supply unit, a first resistor, a power supply touch button, a plurality of restart logic control circuits, a plurality of first control switches and a plurality of anti-misoperation circuits. The ACDC conversion unit is connected with the power supply touch button through the first resistor. The power supply touch button is connected with the plurality of restart logic control circuits. The plurality of restart logic control circuits are connected in parallel with each other. The plurality of restart logic control circuits are respectively connected with the plurality of first control switches in correspondence. The plurality of first control switches are respectively arranged on loops between the battery system and the plurality of energy storage control systems. The power supply touch button is connected with the plurality of anti-misoperation circuits. The plurality of anti-misoperation circuits are respectively connected with the plurality of energy storage control systems in correspondence.

2. The test control device of the household energy storage system according to claim 1, wherein the restart logic control circuit comprises a restart touch button and a first relay coil, the first control switch is a first relay contact, one end of the restart touch button is connected with the power supply touch button, the other end of the restart touch button is connected with one end of the first relay coil, the first relay coil is connected with the corresponding first relay contact, and the other end of the first relay coil is grounded.

3. The test control device of the household energy storage system according to claim 2, wherein the restart touch button is a normally open self-reset button.

4. The test control device of the household energy storage system according to claim 3, wherein the restart logic control circuit further comprises a second relay coil and a second relay contact, the second relay coil is connected in parallel with the first relay coil, the second relay coil is connected with the second relay contact, and the second relay contact is arranged as a second control switch on a loop between the battery system and each energy storage control system.

5. The test control device of the household energy storage system according to claim 2, wherein the anti-misoperation circuit comprises an NPN transistor and a second resistor, the test control device further comprises a P-type MOS tube, a base of the NPN transistor is connected with an output end of a corresponding energy storage control system through the second resistor, a collector of the NPN transistor and a gate of the P-type MOS tube are connected with one end of the power supply touch button, an emitter of the NPN transistor is connected with the other end of the power supply touch button, a source of the P-type MOS tube is connected with the ACDC conversion unit, and a drain of the P-type MOS tube is connected with the restart touch button.

6. The test control device of the household energy storage system according to claim 5, wherein further comprising a light-emitting diode for visual prompting and a third resistor, a positive electrode of the light-emitting diode is connected with the drain of the P-type MOS tube through the third resistor, and a negative electrode of the light-emitting diode is connected with a ground end of the first relay coil.

7. The test control device of the household energy storage system according to claim 1, wherein the power supply touch button is a normally open self-locking button.

8. The test control device of the household energy storage system according to claim 4, wherein The first control switch and the second control switch are both normally closed switches. The first control switch and the second control switch are both normally closed switches.

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