A bidirectional power supply controller

Abstract

The application discloses to the technical field of power supply control, specifically a bidirectional power supply controller, including bidirectional power supply controller main body, ARM control system and FPGA control system, ARM control system and FPGA control system are installed in bidirectional power supply controller main body, ARM control system includes: first power supply control module, communication control module, first parallel port control module and ADC acquisition module, the output of first power supply control module is connected with communication control module, first parallel port control module and ADC acquisition module respectively.The application adopts the control framework of ARM+FPGA, not only can guarantee the control system of bidirectional power supply, but also can make full use of the respective advantages of ARM and FPGA, realizes a kind of real-time control occasion that can be directly used in various bidirectional power supply such as bidirectional DC / DC, bidirectional AC / DC etc.;ARM and FPGA chip adopt 16-bit data parallel port communication, realizes high-speed data exchange between chips, to meet the real-time requirements of power supply control in algorithm, communication and protection.

Description

A bidirectional power controller Technical Field

[0001] This invention relates to the field of power control technology, specifically to a bidirectional power controller. Background Technology

[0002] With the increasing application of power electronics in new energy applications, many situations require power conversion equipment to have bidirectional power flow capabilities. Such converters with bidirectional energy flow are called bidirectional power supplies. Currently, most bidirectional power supply control uses ARM or DSP microcontrollers as the main control chip. ARM, a RISC microprocessor targeting the low-budget market, has strong transaction management capabilities, with its advantages mainly in control. However, its PWM output resolution is relatively low in power supply control. DSP, primarily used for computation, has powerful data processing and high operating speed, and also possesses relatively high-resolution PWM output capabilities. Currently, most power supply products on the market use DSP as the main control chip. However, both ARM and DSP can only execute instructions serially. Controlling bidirectional power supplies is more complex than controlling single-phase power supplies, requiring more time and resources, thus degrading the real-time performance of the bidirectional power supply control system. Furthermore, the connection between the housings of existing power controllers is mostly bolted. During assembly, excessive torque on the electric screws can easily cause stripping and thread damage, increasing the probability of damage to the power controller housing and rendering the power controller unusable. Furthermore, existing power controllers and power cords are mostly fixed with screws and knobs. This fixing method often results in stripped threads and loose nuts, leading to poor stability and easy loosening between the power cord and the power controller, which can cause open circuits and affect the normal use of the power controller. Summary of the Invention

[0003] The purpose of this invention is to provide a bidirectional power controller to solve the problems mentioned above.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a bidirectional power controller, comprising a bidirectional power controller body, an ARM control system, and an FPGA control system, wherein both the ARM control system and the FPGA control system are installed within the bidirectional power controller body. The ARM control system includes: a first power control module, a communication control module, a first parallel port control module, and an ADC acquisition module. The output terminal of the first power control module is connected to the communication control module, the first parallel port control module, and the ADC acquisition module, respectively. The FPGA control system includes: a second power control module, a second parallel port control module, an algorithm module, a PWM module, an IO input module, and an IO output module. The output terminal of the second power control module is connected to the second parallel port control module, the algorithm module, the PWM module, the IO input module, and the IO output module, respectively.

[0005] One end of the bidirectional power controller body is equidistantly equipped with terminal blocks. The front and rear sides of the bidirectional power controller body are symmetrically welded with locking blocks. The front end of the bidirectional power controller body is symmetrically equipped with a wiring mechanism. The upper end of the bidirectional power controller body is provided with a protective cover. The lower ends of the front and rear sides of the protective cover are symmetrically glued with claws. The claws engage with the locking blocks. The left and right sides of the protective cover are symmetrically welded with mounting tooth plates. The left and right sides of the bidirectional power controller body are symmetrically welded with fixing blocks. The inner side of the fixing block is provided with a movable groove. A locking mechanism is installed in the movable groove.

[0006] The wiring mechanism includes: an arc-shaped rod, a compression spring, a compression plate, a flame-retardant washer, and a compression ring. The front end of the bidirectional power controller body is symmetrically welded with an arc-shaped rod, and a compression spring is sleeved on the arc-shaped rod. The front side of the bidirectional power controller body is rotatably connected to a compression plate via a pin. Flame-retardant washers are symmetrically bonded to the lower end of the compression plate, and a compression ring is bonded to the lower end of the flame-retardant washer. The upper end of the compression plate is symmetrically provided with sliding grooves, and the arc-shaped rod is slidably connected to the sliding grooves. The compression ring is sleeved on the upper end of the terminal block.

[0007] The locking mechanism includes: a transmission circular plate, a knob, a transmission rod, a transmission arm plate, a locking tooth plate, and a push-back spring. The transmission circular plate is rotatably connected to the movable groove via a pin. A knob is welded to the side of the transmission circular plate. A transmission rod is symmetrically welded to the side of the transmission circular plate. A transmission arm plate is symmetrically installed on the side of the transmission circular plate. A locking tooth plate is hinged to the end of the transmission arm plate away from the transmission circular plate. Push-back springs are symmetrically welded to the upper and lower sides of the locking tooth plate. The locking tooth plate engages with the mounting tooth plate.

[0008] Preferably, the output of the communication control module is connected to an external controller and a host computer, respectively, so that the bidirectional power controller can communicate with the external controller and the host computer.

[0009] Preferably, the output of the ADC acquisition module is connected to the AD sampling device to acquire and process various analog quantities in the power supply system.

[0010] Preferably, the output terminal of the PWM module is connected to the PWM generator, the IO input module is capable of 8-channel high-speed IO input, and the IO output module is capable of 8-channel high-speed IO output.

[0011] Preferably, the first parallel port control module and the second parallel port control module are connected via a parallel port data line to achieve high-speed data exchange, thereby meeting the real-time requirements of power control in terms of algorithms, communication and protection.

[0012] Preferably, one end of the transmission arm plate has a circular hole, the transmission rod is rotatably connected to the circular hole, and the transmission arm plate is in sliding contact with the transmission circular plate.

[0013] Preferably, the locking toothed plate is slidably connected to the movable groove, one end of the reverse thrust spring contacts the movable groove, and the reverse thrust spring is an S-shaped elastic sheet.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This invention adopts an ARM+FPGA control architecture, which not only ensures the control system of bidirectional power supply, but also makes full use of the advantages of ARM and FPGA to realize a real-time control application that can be directly used in various bidirectional power supply applications such as bidirectional DC / DC and bidirectional AC / DC. The ARM and FPGA chips use 16-bit parallel communication to realize high-speed data exchange between chips, thereby meeting the real-time requirements of power supply control in terms of algorithm, communication and protection.

[0016] 2. The wiring mechanism allows for easy connection of the power cord to the bidirectional power controller body. During wiring, the end of the power cord is formed into a loop or secured with a ring buckle. The loop or buckle is then placed on the terminal block, and the wiring mechanism secures the loop or buckle to the terminal block. The locking mechanism, along with the mounting teeth, allows for quick and easy connection between the bidirectional power controller body and the protective cover. Disassembly is simple and convenient, facilitating the inspection or replacement of internal components. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the bidirectional power controller structure of the present invention;

[0018] Figure 2 is a cross-sectional schematic diagram of the bidirectional power controller structure of the present invention;

[0019] Figure 3 is an enlarged schematic diagram of the structure at point A in Figure 2;

[0020] Figure 4 is a cross-sectional schematic diagram of the fixing block structure of the present invention;

[0021] Figure 5 is an enlarged schematic diagram of the structure at point B in Figure 4;

[0022] Figure 6 is a system diagram of the bidirectional power controller of the present invention.

[0023] In the diagram: 1. Main body of the bidirectional power controller; 11. Terminal block; 12. Locking block; 2. Arc rod; 21. Compression spring; 3. Compression plate; 31. Flame-retardant washer; 32. Compression ring; 4. Protective cover; 41. Claw; 42. Mounting toothed plate; 5. Fixing block; 51. Movable groove; 6. Transmission circular plate; 61. Knob; 62. Transmission rod; 7. Transmission arm plate; 71. Locking toothed plate; 72. Reverse push spring. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please refer to Figures 1 to 6. This invention provides a technical solution: a bidirectional power controller, including a bidirectional power controller body 1, an ARM control system, and an FPGA control system. Both the ARM control system and the FPGA control system are installed inside the bidirectional power controller body 1. The ARM control system includes: a first power control module, a communication control module, a first parallel port control module, and an ADC acquisition module. The output terminal of the first power control module is connected to the communication control module, the first parallel port control module, and the ADC acquisition module, respectively. The output terminal of the communication control module is connected to an external controller and a host computer, respectively, enabling communication between the bidirectional power controller and the external controller and the host computer. The output terminal of the ADC acquisition module is connected to an AD sampling device to acquire and process various analog quantities in the power system.

[0026] The FPGA control system includes: a second power supply control module, a second parallel port control module, an algorithm module, a PWM module, an I / O input module, and an I / O output module. The output of the second power supply control module is connected to the second parallel port control module, the algorithm module, the PWM module, the I / O input module, and the I / O output module, respectively. The output of the PWM module is connected to a PWM generator. The I / O input module can perform 8-channel high-speed I / O input. The high-speed I / O output module can be used to expand various communication protocols, relay control, etc. The I / O output module can perform 8-channel high-speed I / O output. The high-speed I / O input module can be used to implement various high-speed hardware protection signal inputs to meet the better reliability design of bidirectional power supplies. The first parallel port control module and the second parallel port control module are connected through a parallel port data line to realize high-speed data exchange between chips, thereby meeting the real-time requirements of power control in algorithms, communication, and protection.

[0027] One end of the bidirectional power controller body 1 is equidistantly equipped with terminal blocks 11. The front and rear sides of the bidirectional power controller body 1 are symmetrically welded with locking blocks 12. A wiring mechanism is symmetrically installed at the front end of the bidirectional power controller body 1. The wiring mechanism includes: an arc-shaped rod 2, a compression spring 21, a compression plate 3, a flame-retardant washer 31, and a compression ring 32. The front side of the bidirectional power controller body 1 is symmetrically welded with an arc-shaped rod 2, and a compression spring 21 is fitted onto the arc-shaped rod 2. The front side of the bidirectional power controller body 1 is rotatably connected via a pin. A pressure plate 3 is attached, and flame-retardant washers 31 are symmetrically bonded to the lower end of the pressure plate 3. A pressure ring 32 is bonded to the lower end of the flame-retardant washers 31. A sliding groove is symmetrically opened on the upper end of the pressure plate 3. The arc-shaped rod 2 is slidably connected to the sliding groove. The pressure ring 32 is sleeved on the upper end of the terminal 11. The flame-retardant washers 31 are made of flame-retardant rubber. One end of the pressure spring 21 is inserted into the side of the bidirectional power controller body 1, and the other end of the pressure spring 21 is inserted into the pressure plate 3. The pressure spring 21 applies elastic force to the pressure plate 3.

[0028] The upper end of the bidirectional power controller body 1 is provided with a protective cover 4. The lower ends of both the front and rear sides of the protective cover 4 are symmetrically attached with claws 41, which engage with the locking blocks 12. Mounting toothed plates 42 are symmetrically welded to the left and right sides of the protective cover 4. Fixing blocks 5 are symmetrically welded to the left and right sides of the bidirectional power controller body 1. A movable groove 51 is provided inside the fixing block 5. A locking mechanism is installed in the movable groove 51, including: a transmission circular plate 6, a knob 61, a transmission rod 62, a transmission arm plate 7, a locking toothed plate 71, and a reverse thrust spring 72. The transmission circular plate 6 is rotatably connected to the movable groove 51 via a pin. A knob 61 is welded to the side of the transmission circular plate 6, and the knob 61 is rotatably connected to the fixing blocks 5. One end of the button 61 is located on the side of the fixed block 5. A transmission rod 62 is symmetrically welded to the side of the transmission circular plate 6. A transmission arm plate 7 is symmetrically installed on the side of the transmission circular plate 6. A circular hole is opened at one end of the transmission arm plate 7. The transmission rod 62 is rotatably connected to the circular hole. The transmission arm plate 7 is in sliding contact with the transmission circular plate 6. A locking tooth plate 71 is hinged to the end of the transmission arm plate 7 away from the transmission circular plate 6. A reverse thrust spring 72 is symmetrically welded to the upper and lower sides of the locking tooth plate 71. The locking tooth plate 71 is slidably connected to the movable groove 51. The locking tooth plate 71 is engaged with the mounting tooth plate 42. One end of the reverse thrust spring 72 is in contact with the movable groove 51. The reverse thrust spring 72 is an S-shaped elastic sheet. The reverse thrust spring 72 applies a spring force to the locking tooth plate 71.

[0029] This invention employs an ARM+FPGA control architecture, which not only ensures the control system for bidirectional power supplies but also fully utilizes the respective advantages of ARM and FPGA to achieve real-time control of various bidirectional power supplies, such as bidirectional DC / DC and bidirectional AC / DC. The ARM chip is primarily responsible for the following power system control functions: ① acquiring and processing various analog quantities in the power system; ② communicating with external controllers and host computers. The FPGA chip is primarily responsible for the following functions: ① implementing the underlying power supply algorithms, including filtering, PID algorithms, and duty cycle calculation; ② having an 8-channel PWM generator, with each channel having very high resolution, meeting the high-resolution PWM requirements of various bidirectional power supplies; ③ a high-speed I / O output module, which can be used to expand communication protocols, relay control, etc.; ④ a high-speed I / O input module, which can be used to implement various high-speed hardware protection signal inputs to meet the better reliability design of bidirectional power supplies. The ARM and FPGA chips use 16-bit parallel communication to achieve high-speed data exchange between chips, thereby meeting the real-time requirements of power supply control in algorithms, communication, and protection.

[0030] During wiring, first lift the clamping plate 3 upwards, allowing it to slide along the arc-shaped rod 2. Simultaneously, the clamping plate 3 compresses the clamping spring 21, forming a ring around the end of the power cord or engaging the end of the power cord with a ring buckle. Then, place the ring or ring buckle onto the terminal 11. Release the clamping plate 3, and under the elastic force of the clamping spring 21, the clamping plate 3 rotates downwards. The clamping plate 3 drives the flame-retardant washer 31 and the clamping ring 32 to rotate downwards, causing the flame-retardant washer 31 and the clamping ring 32 to move downwards along the terminal 11. The clamping ring 32 then firmly fixes the ring or ring buckle onto the terminal 11. The locking block 12 and the claw 41 facilitate the easy connection of the bidirectional power controller body 1 and the protective... The cover 4 is fixed between the two sides by locking the locking tooth plate 71 and the mounting tooth plate 42 in the locking mechanism, so that the bidirectional power controller body 1 and the protective cover 4 are firmly fixedly connected. When it is necessary to remove the protective cover 4, first turn the knob 61. The knob 61 drives the transmission plate 6 to rotate. The transmission plate 6 drives the transmission arm plate 7 to move through the transmission rod 62. The transmission arm plate 7 drives the locking tooth plate 71 to move, so that the locking tooth plate 71 is separated from the mounting tooth plate 42. Then, the claw 41 is separated from the locking block 12, so that the protective cover 4 can be removed from the bidirectional power controller body 1. The installation and removal methods are simple and convenient, which facilitates the inspection or replacement of the internal components of the bidirectional power controller body 1.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bidirectional power controller, comprising a bidirectional power controller body (1), an ARM control system, and an FPGA control system, wherein the ARM control system and the FPGA control system are both installed within the bidirectional power controller body (1), characterized in that: The ARM control system includes: a first power control module, a communication control module, a first parallel port control module, and an ADC acquisition module. The output terminal of the first power control module is connected to the communication control module, the first parallel port control module, and the ADC acquisition module, respectively. The FPGA control system includes: a second power control module, a second parallel port control module, an algorithm module, a PWM module, an IO input module, and an IO output module. The output terminal of the second power control module is connected to the second parallel port control module, the algorithm module, the PWM module, the IO input module, and the IO output module, respectively. One end of the bidirectional power controller body (1) is equidistantly equipped with terminals (11). The front and rear sides of the body (1) are symmetrically welded with locking blocks (12). The front end of the bidirectional power controller body (1) is symmetrically equipped with a wiring mechanism. The upper end of the bidirectional power controller body (1) is provided with a protective cover (4). The lower ends of the front and rear sides of the protective cover (4) are symmetrically glued with claws (41). The claws (41) are engaged with the locking blocks (12). The left and right sides of the protective cover (4) are symmetrically welded with mounting tooth plates (42). The left and right sides of the bidirectional power controller body (1) are symmetrically welded with fixing blocks (5). The inner side of the fixing block (5) is provided with a movable groove (51). A locking mechanism is installed in the movable groove (51). The wiring mechanism includes: an arc rod (2). The bidirectional power controller body (1) consists of a compression spring (21), a compression plate (3), a flame-retardant washer (31), and a compression ring (32). A curved rod (2) is symmetrically welded to the front end of the bidirectional power controller body (1). A compression spring (21) is fitted onto the curved rod (2). A compression plate (3) is rotatably connected to the front side of the bidirectional power controller body (1) via a pin. Flame-retardant washers (31) are symmetrically bonded to the lower end of the compression plate (3). A compression ring (32) is bonded to the lower end of the flame-retardant washer (31). A sliding groove is symmetrically opened on the upper end of the compression plate (3). The curved rod (2) is slidably connected to the sliding groove. The compression ring (32) is fitted onto the upper end of the terminal block (11). The locking mechanism... It includes: a transmission circular plate (6), a knob (61), a transmission rod (62), a transmission arm plate (7), a locking tooth plate (71), and a push-back spring (72). The transmission circular plate (6) is rotatably connected to the movable groove (51) by a pin. The knob (61) is welded to the side of the transmission circular plate (6). The transmission rod (62) is symmetrically welded to the side of the transmission circular plate (6). The transmission arm plate (7) is symmetrically installed on the side of the transmission circular plate (6). The locking tooth plate (71) is hinged to the end of the transmission arm plate (7) away from the transmission circular plate (6). The push-back spring (72) is symmetrically welded to the upper and lower sides of the locking tooth plate (71). The locking tooth plate (71) is engaged with the mounting tooth plate (42).

2. The bidirectional power controller according to claim 1, characterized in that: The output of the communication control module is connected to the external controller and the host computer, respectively, enabling the bidirectional power controller to communicate with the external controller and the host computer.

3. A bidirectional power controller according to claim 1, characterized in that: The output of the ADC acquisition module is connected to the AD sampling device to acquire and process various analog quantities in the power supply system.

4. A bidirectional power controller according to claim 1, characterized in that: The output of the PWM module is connected to the PWM generator. The IO input module can perform 8-channel high-speed IO input, and the IO output module can perform 8-channel high-speed IO output.

5. A bidirectional power controller according to claim 1, characterized in that: The first parallel port control module and the second parallel port control module are connected via a parallel port data line to achieve high-speed data exchange and meet the real-time requirements of power control in terms of algorithms, communication and protection.

6. A bidirectional power controller according to claim 1, characterized in that: One end of the transmission arm plate (7) is provided with a circular hole, the transmission rod (62) is rotatably connected to the circular hole, and the transmission arm plate (7) is in sliding contact with the transmission circular plate (6).

7. A bidirectional power controller according to claim 1, characterized in that: The locking tooth plate (71) is slidably connected to the movable groove (51), and one end of the push-back spring (72) is in contact with the movable groove (51). The push-back spring (72) is an S-shaped elastic sheet.

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