A static phase-modulating supercapacitor cluster device

Abstract

The utility model discloses a kind of static phase-modulation super-capacitor cluster devices, including vertical frame, power module and super-capacitor module, power module is set to vertical frame and power module is located at the bottom of installation space, power module includes power conversion unit and high-voltage box unit, high-voltage box unit includes switching power supply assembly, super-capacitor module is set to vertical frame and super-capacitor module is located above power module, super-capacitor module includes multiple super-capacitor units, multiple super-capacitor units are sequentially connected and multiple super-capacitor units are sequentially stacked along up-down direction, switching power supply assembly is connected with the direct current end of power conversion unit and super-capacitor module respectively, power conversion unit and high-voltage box unit are arranged along front-back direction, the device of power conversion unit and the device of high-voltage box unit at least have partial shadow overlap in front-back direction, and the design structure is compact, stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to a static phase-adjusting overcapacity cluster device. Background Technology

[0002] With the increasing demand for dynamic reactive power compensation, voltage stabilization and power quality optimization in power systems, the application of Static Synchronous Compensator (STATCOM) in power grids is becoming more and more widespread.

[0003] In existing technologies, static phase-modulated supercapacitor cluster devices typically adopt a modular design, mainly consisting of power modules and supercapacitor modules. However, the layout of traditional static phase-modulated supercapacitor cluster devices suffers from the following problem of low space utilization: the power module includes power conversion units (such as inverters, choppers, etc.) and high-voltage box units (including switching power supplies, protection circuits, etc.). In the past, the power conversion units and high-voltage box units were stacked vertically. However, since the length of the supercapacitor modules is basically limited and they are all longer than the power conversion units and high-voltage box units, there are gaps in the height space occupied by the power conversion units and high-voltage box units. This arrangement is bulky, requires a lot of installation space, and has weak support stability. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a static phase-adjusting supercapacitive cluster device, which has a compact structure and stable and reliable operation.

[0005] A static phase-adjusting supercapacitor cluster device according to a first aspect of the present invention includes: a vertical frame with an internal installation space; a power module disposed on the vertical frame and located at the bottom of the installation space, the power module including a power conversion unit and a high-voltage box unit, the high-voltage box unit including a switching power supply assembly; and a supercapacitor module disposed on the vertical frame and located above the power module, the supercapacitor module including multiple supercapacitor units, the multiple supercapacitor units being connected in series and stacked sequentially in a vertical direction, the switching power supply assembly being connected to the DC terminal of the power conversion unit and the supercapacitor module respectively; wherein the power conversion unit and the high-voltage box unit are arranged in a front-back direction, and the components of the power conversion unit and the components of the high-voltage box unit have at least partial shadow overlap in the front-back direction.

[0006] A static phase-modulating supercapacitive cluster device according to an embodiment of the present invention has at least the following beneficial effects: This utility model of a static phase-adjusting supercapacitor cluster device arranges the power conversion unit and the high-voltage box unit of the power module along the front-to-back direction, with at least partial overlap of the shadows of the components in the power conversion unit and the components in the high-voltage box unit in the front-to-back direction, and keeps them as close to each other as possible without the need for upper and lower layering. Furthermore, users can increase or decrease the number of supercapacitor units in the supercapacitor module by stacking them above the power module according to actual needs. The operation is simple and convenient, and the design is compact and operates stably and reliably.

[0007] According to some embodiments of this utility model, the power conversion unit includes a water-cooled heat sink, a switching transistor assembly, and an energy storage capacitor assembly. The switching transistor assembly is disposed on the wall of the water-cooled heat sink for thermal contact and is located on the side of the water-cooled heat sink. The energy storage capacitor assembly is located behind the water-cooled heat sink. The switching power supply assembly includes a circuit breaker, which is located behind the water-cooled heat sink and above the energy storage capacitor assembly. The first end of the circuit breaker is electrically connected to the DC terminal of the switching transistor assembly and the energy storage capacitor assembly, respectively, and the second end of the circuit breaker is connected to the supercapacitor module.

[0008] According to some embodiments of the present invention, the power conversion unit further includes a stacked busbar vertically disposed behind the water-cooled radiator, and the first end of the circuit breaker is electrically connected to the switching transistor assembly and the energy storage capacitor assembly respectively through the stacked busbar.

[0009] According to some embodiments of the present invention, the power module further includes a control circuit board, which is disposed on the vertical frame and located on the side of the water-cooled heat sink, and the control circuit board is connected to the controlled end of the switching transistor assembly.

[0010] According to some embodiments of the present invention, the power conversion unit further includes a bypass switch and a bypass drive board. The bypass switch is located in front of the water-cooled radiator and is connected in parallel with the AC terminal of the switching tube assembly. The bypass drive board is disposed on the vertical frame and located on the side of the water-cooled radiator. The bypass drive board is connected to the controlled terminal of the bypass switch to control the on / off state of the bypass switch.

[0011] According to some embodiments of the present invention, the vertical frame has a middle shell disposed on the side of the water-cooled radiator, the control circuit board and the bypass drive board are disposed on the first surface of the middle shell, and the bypass switch and the switch tube assembly are located on one side of the second surface of the middle shell, wherein the first surface and the second surface are opposite to each other.

[0012] According to some embodiments of this utility model, the vertical frame is provided with a panel shell in front of the power module, the water cooling inlet and outlet of the water cooling radiator are provided through the panel shell, the panel shell is provided with an input busbar, the input busbar is connected to the AC terminal of the switching tube assembly, the driven component of the bypass drive board is provided through the panel shell, and the driven component is used to control the bypass drive board to control the on / off of the bypass switch.

[0013] According to some embodiments of this utility model, a terminal block is provided on the panel housing, the tail end of the circuit breaker is connected to the terminal block through a conductive busbar, and the end of the overcapacity module is connected to the terminal block.

[0014] According to some embodiments of the present invention, the high-voltage box unit further includes a monitoring circuit board, which is disposed within a vertical frame and connected to the terminal block. The interface of the monitoring circuit board passes through the panel shell.

[0015] According to some embodiments of the present invention, the power conversion unit further includes a power modulation module, the input terminal of which is connected to an energy storage capacitor assembly, and the output terminal of which is connected to a control circuit board for power supply.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram from one angle of one embodiment of the static phase-adjusting supercapacity cluster device of this utility model; Figure 2 for Figure 1 A magnified schematic diagram of part A of one embodiment of the static phase-modulating supercapacitive cluster device of the present invention; Figure 3 This is a side view of one embodiment of the static phase-adjusting supercapacity cluster device of this utility model; Figure 4 This is a schematic diagram from another angle of one embodiment of the static phase-adjusting supercapacity cluster device of this utility model; Figure 5 for Figure 4 A magnified schematic diagram of part B of one embodiment of the static phase-modulating supercapacitive cluster device of the present invention; Figure 6 This is a circuit diagram of one embodiment of the static phase-adjusting supercapacitive cluster device of this utility model.

[0018] Figure label: Vertical frame 100; middle shell 110; front panel shell 120; power module 200; power conversion unit 210; water-cooled radiator 211; switching transistor assembly 212; energy storage capacitor assembly 213; control circuit board 214; bypass switch 215; bypass drive board 216; high voltage box unit 220; circuit breaker 221; multilayer busbar 310; terminal block 320; monitoring circuit board 330; power modulation module 340; supercapacitor module 400; supercapacitor unit 410. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1 to 6As shown, a static phase-adjusting supercapacitor cluster device according to a first aspect embodiment of the present invention includes a vertical frame 100, a power module 200, and a supercapacitor module 400. The vertical frame 100 has an installation space. The power module 200 is disposed on the vertical frame 100 and located at the bottom of the installation space. The power module 200 includes a power conversion unit 210 and a high-voltage box unit 220. The high-voltage box unit 220 includes a switching power supply assembly. The supercapacitor module 400 is disposed on the vertical frame 100 and located at the bottom of the installation space. Above the power module 200, the supercapacitor module 400 includes multiple supercapacitor units 410, which are connected in series and stacked vertically. The switching power supply assembly is connected to the DC terminal of the power conversion unit 210 and the supercapacitor module 400. The power conversion unit 210 and the high-voltage box unit 220 are arranged in the front-back direction, and the devices of the power conversion unit 210 and the high-voltage box unit 220 have at least partial shadow overlap in the front-back direction.

[0024] The vertical frame 100 may include multiple vertical supports, with crossbars connecting adjacent supports to form an installation space. During installation, the user can first place the power module 200 into the installation space from the top and install it on the vertical frame 100 using screws or other means. Then, the supercapacitor module 400 is placed on top of the power module 200 and installed on the vertical frame 100 using screws or other means.

[0025] It should be noted that the power conversion unit 210 includes a water-cooled heat sink 211, a switching transistor assembly 212, and an energy storage capacitor assembly 213, and the high-voltage box unit 220 includes a switching power supply assembly, protection circuit, etc.

[0026] This utility model relates to a static phase-adjusting supercapacitor cluster device. The power conversion unit 210 and the high-voltage box unit 220 of the power module 200 are arranged along the front-to-back direction. The components of the power conversion unit 210 and the high-voltage box unit 220 overlap in the front-to-back direction at least partially. This can be understood as the components of the high-voltage box unit 220 being partially located above the components of the power conversion unit 210. However, compared to the space occupied by the high-voltage box unit 220 being separated from the space occupied by the power conversion unit 210 by a plate, they are kept as close as possible to each other, eliminating the need for vertical layering. Furthermore, users can increase or decrease the number of supercapacitor units 410 in the supercapacitor module 400 by stacking them above the power module 200 according to actual needs. The operation is simple and convenient, and the design is compact and operates stably and reliably.

[0027] In some embodiments of this utility model, the switching transistor assembly 212 is disposed on the wall of the water-cooled radiator 211 for thermal contact and the switching transistor assembly 212 is located on the side of the water-cooled radiator 211. The energy storage capacitor assembly 213 is located behind the water-cooled radiator 211. The switching power supply assembly includes a circuit breaker 221, which is located behind the water-cooled radiator 211 and above the energy storage capacitor assembly 213. The first end of the circuit breaker 221 is electrically connected to the DC terminal of the switching transistor assembly 212 and the energy storage capacitor assembly 213, respectively. The tail end of the circuit breaker 221 is connected to the supercapacitor module 400.

[0028] The water-cooled inlet and outlet of the water-cooled radiator 211 can be connected to a water-cooling supply source. The water-cooling supply source can output cold water to the water-cooled radiator 211 and also cool the recovered hot water. The heat of the switching tube assembly 212 can be conducted to the water through the wall of the water-cooled radiator 211, thereby achieving the heat dissipation effect.

[0029] The energy storage capacitor assembly 213 is typically elongated and can be placed flat within the vertical frame 100. However, due to the space above the energy storage capacitor assembly 213, and as... Figure 6 As shown, in terms of circuit structure, the first end of the circuit breaker 221 needs to be electrically connected to the DC end of the switching transistor assembly 212 and the energy storage capacitor assembly 213 respectively. Therefore, the circuit breaker 221 is located behind the water-cooled radiator 211 and above the energy storage capacitor assembly 213.

[0030] To facilitate electrical connection between the first end of the circuit breaker 221 and the switching transistor assembly 212 and the energy storage capacitor assembly 213, and to improve structural compactness, such as Figure 2 , 5 As shown, in some embodiments of this utility model, the power conversion unit 210 further includes a stacked busbar 310 vertically disposed behind the water-cooled radiator 211, and the first end of the circuit breaker 221 is electrically connected to the switch tube assembly 212 and the energy storage capacitor assembly 213 respectively through the stacked busbar 310.

[0031] The laminated busbar 310 can be made of copper busbars. The laminated busbar 310 is vertically placed between the switch tube assembly 212 and the energy storage capacitor assembly 213. The switch tube assembly 212 can be connected to one side of the laminated busbar 310, while the energy storage capacitor assembly 213 and the first end of the circuit breaker 221 can be connected to the other side of the laminated busbar 310. The connection is convenient and compact.

[0032] In some embodiments of this utility model, such as Figure 5As shown, the power module 200 also includes a control circuit board 214, which is disposed on the vertical frame 100 and located on the side of the water-cooled radiator 211. The control circuit board 214 is connected to the controlled end of the switching tube assembly 212.

[0033] The control circuit board 214 can be equipped with processor components such as MCU and CPU, as well as auxiliary circuit components. The control circuit board 214 can be connected to the controlled terminal of the switching transistor assembly 212 via wires or busbars.

[0034] In some embodiments of this utility model, such as Figure 1 , 2 As shown, the power conversion unit 210 also includes a bypass switch 215 and a bypass drive board 216. The bypass switch 215 is located in front of the water-cooled radiator 211 and is connected in parallel with the AC terminal of the switching tube assembly 212. The bypass drive board 216 is disposed on the vertical frame 100 and located on the side of the water-cooled radiator 211. The bypass drive board 216 is connected to the controlled terminal of the bypass switch 215 to control the on / off state of the bypass switch 215.

[0035] From a circuit structure perspective, such as Figure 6 As shown, the bypass switch 215 is connected in parallel with the AC terminal of the switching tube assembly 212. Therefore, the bypass switch 215 is located in front of the water-cooled radiator 211. The power conversion unit 210 arranges its components reasonably from front to back according to the circuit structure. The bypass drive board 216 can be connected to the control circuit board 214. The control circuit board 214 outputs control commands to the bypass drive board 216 to control the on / off state of the bypass switch 215. The bypass drive board 216 can also be equipped with a driven component, such as a push-button switch. The user can operate the driven component to control the on / off state of the bypass switch 215.

[0036] In some embodiments of this utility model, such as Figure 2 , 5 As shown, the vertical frame 100 has a middle shell 110 disposed on the side of the water-cooled radiator 211. The control circuit board 214 and the bypass drive board 216 are disposed on the first surface of the middle shell 110. The bypass switch 215 and the switch tube assembly 212 are located on one side of the second surface of the middle shell 110, wherein the first surface and the second surface are opposite to each other.

[0037] The middle shell 110 enhances the support for the control circuit board 214 and the bypass drive board 216, while also isolating the control circuit board 214 and the bypass drive board 216 of the control section from the switching transistor assembly 212 of the power section, making the control more stable and reliable and reducing interference.

[0038] In some embodiments of this utility model, such as Figure 1 , 2 As shown, the vertical frame 100 has a panel housing 120 in front of the power module 200. The water-cooling inlet and outlet of the water-cooled radiator 211 pass through the panel housing 120. An input busbar is provided on the panel housing 120. The input busbar is connected to the AC terminal of the switching tube assembly 212. The driven component of the bypass drive board 216 passes through the panel housing 120. The driven component is used to control the bypass drive board 216 to control the on / off of the bypass switch 215, thereby facilitating user wiring and operation.

[0039] In some embodiments of this utility model, a terminal block 320 is provided on the panel housing 120, the tail end of the circuit breaker 221 is connected to the terminal block 320 through a conductive busbar, the end of the supercapacitor module 400 is connected to the terminal block 320, the tail end of the circuit breaker 221 extends from the vertical frame 100 to the front panel housing 120 through a conductive busbar, multiple supercapacitor units 410 in the supercapacitor module 400 are connected in series, and finally the supercapacitor module 400 and the tail end of the circuit breaker 221 are connected through the terminal block 320 respectively, which is convenient for user operation.

[0040] In some embodiments of this utility model, the high-voltage box unit 220 further includes a monitoring circuit board 330, which is disposed within the vertical frame 100. The monitoring circuit board 330 is connected to the terminal block 320, and the interface of the monitoring circuit board 330 passes through the panel housing 120. Users can connect to the monitoring circuit board 330 through monitoring equipment, thereby connecting to the overcapacitance module 400 through the terminal block 320 to monitor, protect, and manage the charging and discharging process of the overcapacitance module 400.

[0041] In some embodiments of this utility model, the power conversion unit 210 further includes a power modulation module 340. The input terminal of the power modulation module 340 is connected to the energy storage capacitor assembly 213, and the output terminal of the power modulation module 340 is connected to the control circuit board 214 for power supply. The power modulation module 340 may include a voltage regulating chip and its auxiliary circuits. The power modulation module 340 can draw power from the energy storage capacitor assembly 213, and then modulate it into a power supply voltage suitable for supplying power to the control circuit board 214 through the voltage regulating chip and its auxiliary circuits.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A static phase-modulated overcapacity cluster device, characterized in that, include: Vertical frame with internal installation space; A power module is disposed on the vertical frame and the power module is located at the bottom of the installation space. The power module includes a power conversion unit and a high voltage box unit. The high voltage box unit includes a switching power supply assembly. A supercapacitor module is disposed on the vertical frame and located above the power module. The supercapacitor module includes multiple supercapacitor units, which are connected in series and stacked in a vertical direction. The switching power supply assembly is connected to the DC terminal of the power conversion unit and the supercapacitor module. The power conversion unit and the high-voltage box unit are arranged in a front-to-back direction, and the components of the power conversion unit and the components of the high-voltage box unit have at least partial overlap in shadow in the front-to-back direction.

2. The static phase-modulating overcapacity cluster device according to claim 1, characterized in that: The power conversion unit includes a water-cooled heat sink, a switching transistor assembly, and an energy storage capacitor assembly. The switching transistor assembly is disposed on the wall of the water-cooled heat sink for thermal contact and is located on the side of the water-cooled heat sink. The energy storage capacitor assembly is located behind the water-cooled heat sink. The switching power supply assembly includes a circuit breaker, which is located behind the water-cooled heat sink and above the energy storage capacitor assembly. The first end of the circuit breaker is electrically connected to the DC terminal of the switching transistor assembly and the energy storage capacitor assembly, respectively, and the second end of the circuit breaker is connected to the supercapacitor module.

3. The static phase-modulating supercapacitive cluster device according to claim 2, characterized in that: The power conversion unit also includes a stacked busbar vertically arranged behind the water-cooled radiator, and the first end of the circuit breaker is electrically connected to the switching transistor assembly and the energy storage capacitor assembly respectively through the stacked busbar.

4. A static phase-modulating overcapacity cluster device according to claim 2, characterized in that: The power module also includes a control circuit board, which is disposed on the vertical frame and located on the side of the water-cooled heat sink. The control circuit board is connected to the controlled end of the switching transistor assembly.

5. A static phase-modulating overcapacity cluster device according to claim 4, characterized in that: The power conversion unit also includes a bypass switch and a bypass drive board. The bypass switch is located in front of the water-cooled radiator and is connected in parallel with the AC terminal of the switching tube assembly. The bypass drive board is disposed on the vertical frame and located on the side of the water-cooled radiator. The bypass drive board is connected to the controlled terminal of the bypass switch to control the on / off state of the bypass switch.

6. A static phase-modulating overcapacity cluster device according to claim 5, characterized in that: The vertical frame has a middle shell on the side of the water-cooled heat sink. The control circuit board and the bypass drive board are disposed on the first surface of the middle shell. The bypass switch and the switch tube assembly are located on one side of the second surface of the middle shell. The first surface and the second surface are opposite to each other.

7. A static phase-modulating overcapacity cluster device according to claim 5, characterized in that: The vertical frame has a panel shell in front of the power module. The water cooling inlet and outlet of the water-cooled radiator pass through the panel shell. An input busbar is provided on the panel shell. The input busbar is connected to the AC terminal of the switching transistor assembly. The driven component of the bypass drive board passes through the panel shell. The driven component is used to control the bypass drive board to control the on / off state of the bypass switch.

8. A static phase-modulating overcapacity cluster device according to claim 7, characterized in that: A terminal block is provided on the panel housing. The tail end of the circuit breaker is connected to the terminal block through a conductive busbar. The end of the overcapacity module is connected to the terminal block.

9. A static phase-modulating overcapacity cluster device according to claim 8, characterized in that: The high-voltage box unit also includes a monitoring circuit board, which is set inside the vertical frame and connected to the terminal block. The interface of the monitoring circuit board passes through the panel shell.

10. A static phase-modulating overcapacity cluster device according to claim 4, characterized in that: The power conversion unit further includes a power modulation module, the input terminal of which is connected to an energy storage capacitor assembly, and the output terminal of which is connected to a control circuit board for power supply.

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