Vehicle-mounted phased array antenna power supply system
Patent Information
- Application Number
- CN202522287484.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-29
AI Technical Summary
相控阵天线如果发射大功率信号，系统的用电功耗就会同比例增加，即使是短时的大功率发射也意味着车载发电机组或车载底盘取力发电系统体积和重量的增加；由于一些轻型高机动底盘上装空间与底盘动力有限，无法安装大功率油机或取力发电系统，因此难以满足相控阵天线发射大功率信号的的用电需求，进而限制了车载电抗系统的作用距离
本实用新型提供了一种车载相控阵天线增功电源系统，可满足车载相控阵天线短时大功率的用电需求，可显著降低供电设备的体积和重量，电能变换拓扑简单，可靠性高。本实用新型特别适用于安装在轻型高机动底盘上给具有短时发射大功率信号的相控阵天线供电。
Smart Images
Figure CN224774626U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power supply and distribution technology for vehicle-mounted phased array antennas, specifically to a power boosting system for vehicle-mounted phased array antennas. Background Technology
[0002] As a crucial component of vehicle-mounted reactor systems, phased array antennas currently rely heavily on vehicle-mounted generator sets or chassis-mounted power take-off (PTO) systems for power supply. If a phased array antenna transmits a high-power signal, the system's power consumption increases proportionally. Even short-duration high-power transmissions mean an increase in the size and weight of the vehicle-mounted generator set or chassis-mounted PTO system. Due to limited space and power resources on some lightweight, high-mobility chassis, it's impossible to install high-power generators or PTO systems, thus failing to meet the power requirements for high-power signal transmission by the phased array antenna and consequently limiting the effective range of the vehicle-mounted reactor system. Utility Model Content
[0003] The technical problem this invention aims to solve avoids the shortcomings of the aforementioned background technology, providing a vehicle-mounted phased array antenna power enhancement system. This system enables the miniaturization and weight reduction of the power supply equipment, meeting both the space requirements of vehicle installation and the short-term power needs of high-power phased array antennas. In practical applications, even short-term high-power transmission can improve the overall technical performance of the vehicle-mounted reactive system.
[0004] This utility model is achieved through the following technical solution: A vehicle-mounted phased array antenna power supply system includes an AC / DC power supply 1 and an energy storage unit. The AC / DC power supply 1 and the energy storage unit are connected in parallel through a first anti-backflow circuit 2 and a second anti-backflow circuit 6 to form a common bus. AC / DC power supply 1 is used to isolate and convert the input AC power into DC power, which is then fed into the common bus through the first anti-backflow circuit 2 to power the phased array antenna. The energy storage unit is used to supply power to the phased array antenna when the output power of AC / DC power supply 1 does not meet the power consumption of the vehicle-mounted phased array antenna. The output current is fed into the common bus through the second anti-backflow circuit 6.
[0005] Furthermore, the AC / DC power supply 1 output overcurrent protection mode is current limiting protection. When the power consumption of the phased array antenna exceeds the output power of the AC / DC power supply 1, its output current remains constant and the output voltage drops, thereby matching the output voltage of the energy storage unit and realizing parallel operation of AC / DC power supply 1 and energy storage unit.
[0006] Furthermore, the first anti-backflow circuit 2 and the second anti-backflow circuit 6 are composed of diodes connected in parallel, according to their respective output currents.
[0007] Furthermore, it also includes a DC / DC charging unit 3; the input end of the DC / DC charging unit 3 is connected to the output of the AC / DC power supply 1, and the output end is connected to the energy storage unit. When the vehicle phased array antenna is not working and the battery pack 4 needs to be replenished with power, it replenishes the energy storage unit with power.
[0008] Furthermore, the energy storage unit includes a battery pack 4 and a charge / discharge control circuit 5; The charging and discharging control circuit 5 is used for the charging and discharging control of the battery pack 4. When the battery pack 4 needs to be replenished with power, it is charged by the DC / DC charging unit 3. When the power consumption of the phased array antenna exceeds the output power of the AC / DC power supply 1, the battery pack 4 is controlled to discharge to the outside, and the output current of the battery pack 4 is fed into the common bus through the second anti-backflow circuit 6.
[0009] Furthermore, the charge and discharge control circuit 5 includes a load pre-charge resistor 7 and a DC contactor 8 connected in parallel, one end of which is connected to the battery pack 4, and the other end is connected to the DC / DC charging unit 3 and the second anti-backflow circuit 6. When battery pack 4 needs to be replenished with power, DC contactor 8 closes, and DC / DC charging unit 3 charges battery pack 4; when battery pack 4 needs to discharge externally, the capacitor on the phased array antenna is first precharged through load pre-charging resistor 7 and second anti-backflow circuit 6, and DC contactor 8 closes after a delay.
[0010] Compared with the prior art, the technical solution of this utility model has the following advantages: This invention provides a power supply system for vehicle-mounted phased array antennas, which can meet the short-time high-power requirements of vehicle-mounted phased array antennas, significantly reduce the size and weight of the power supply equipment, and features a simple power conversion topology and high reliability. This invention is particularly suitable for powering phased array antennas capable of transmitting high-power signals for short periods, mounted on lightweight, high-mobility chassis. Attached Figure Description
[0011] Figure 1 This is a block diagram illustrating the electrical principle of this utility model.
[0012] Figure 2 This is a block diagram of the electrical principle of the charging and discharging control circuit 5 of this utility model. Detailed Implementation
[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.
[0014] Reference Figure 1The present invention discloses a vehicle-mounted phased array antenna power supply system, comprising an AC / DC power supply 1, a first anti-backflow circuit 2, a DC / DC charging unit 3, an energy storage unit, and a second anti-backflow circuit 6. The energy storage unit includes a battery pack 4 and a charging and discharging control circuit 5. The AC / DC power supply 1 and the energy storage unit are connected in parallel through the first anti-backflow circuit 2 and the second anti-backflow circuit 6 to form a common bus. Figure 1 This is a block diagram of the electrical principle of this utility model. The embodiments are as follows: Figure 1 Connect the lines.
[0015] The AC / DC power supply 1 is used to isolate and convert the three-phase AC 380V power input from the vehicle-mounted generator set or chassis power take-off system into DC 270V power, which is then fed into the common bus through the first anti-backflow circuit 2 to power the phased array antenna. The output power is 20kW, and the output overcurrent protection method is current limiting protection.
[0016] The function of the energy storage unit is to supply power to the phased array antenna when the output power of AC / DC power supply 1 does not meet the power consumption of the vehicle-mounted phased array antenna. The output current is fed into the common bus through the second anti-backflow circuit 6.
[0017] The function of the first anti-backflow circuit 2 and the second anti-backflow circuit 6 is to connect the AC / DC power supply 1 and the output of the energy storage unit in parallel to prevent the electrical energy of the energy storage unit from flowing back into the electrical energy output of the AC / DC power supply 1, which could damage the AC / DC power supply 1 or the energy storage unit. The first anti-backflow circuit 2 is composed of two high-voltage diodes with a reverse voltage of 400V and a rated current of 100A connected in parallel. The second anti-backflow circuit 6 is composed of eight high-voltage diodes with a reverse voltage of 400V and a rated current of 100A connected in parallel.
[0018] The input terminal of DC / DC charging unit 3 is connected to the output of AC / DC power supply 1, and the output terminal is connected to the energy storage unit. The function of DC / DC charging unit 3 is to replenish the energy storage unit when the vehicle phased array antenna is not working and the battery pack 4 needs to be replenished. Its working mode is constant current-constant voltage mode, and the charging power is 5kW or 10kW. The charging power can be set through the mode selection switch on the front panel of DC / DC charging unit 3.
[0019] The purpose of battery pack 4 is to supplement the missing power and increase the output power of the power supply system after the power consumption of the vehicle phased array antenna exceeds the output power of the primary power supply. Battery pack 4 has a nominal output voltage of 262V, a nominal capacity of 20 kWh, and a maximum discharge power of 100kW. Battery pack 4 is composed of lithium iron phosphate batteries connected in series and parallel.
[0020] The function of the charging and discharging control circuit 5 is to control the charging and discharging of the battery pack 4. When the battery pack 4 needs to be replenished with power, it is charged by the DC / DC charging unit 3. When the power consumption of the phased array antenna exceeds the output power of the AC / DC power supply 1, the battery pack 4 is controlled to discharge to the outside, and the output current of the battery pack 4 is fed into the common bus through the second anti-backflow circuit 6.
[0021] The charging and discharging control circuit 5 includes a load pre-charge resistor 7 and a DC contactor 8 connected in parallel. One end is connected to the battery pack 4, and the other end is connected to the DC / DC charging unit 3 and the second anti-reverse current circuit 6. When the battery pack 4 needs to be replenished, the DC contactor 8 closes, and the DC / DC charging unit 3 charges the battery pack 4. When the battery pack 4 needs to discharge, the capacitor on the phased array antenna is pre-charged first through the load pre-charge resistor 7 and the second anti-reverse current circuit 6. The DC contactor 8 closes after a delay to prevent the voltage of the battery pack 4 from being directly applied to the phased array antenna, forming a surge current and causing damage to the equipment on the phased array antenna. In this embodiment, the load pre-charge resistor 7 is a resistor with good surge resistance, a resistance of 100Ω, and a rated power of 50W. The contact parameters of the DC contactor 8 are 400A / 400V.
[0022] Brief working principle of this utility model: The three-phase 380V AC power output from the vehicle-mounted generator set or chassis power take-off system is isolated and converted into 270V DC power by AC / DC power supply 1, and then fed into the DC high-voltage bus through the first anti-backflow circuit 2. The power output from battery pack 4 is fed into the DC high-voltage bus through the charge and discharge control circuit 5 and the second anti-backflow circuit 6. The output voltage of AC / DC power supply 1 is higher than that of battery pack 4. Due to the anti-backflow circuit, when the power consumption of the phased array antenna is less than the output power of AC / DC power supply 1, AC / DC power supply 1 supplies power to the phased array antenna, and battery pack 4 does not participate in the power supply. When the power consumption of the phased array antenna is greater than the output power of AC / DC power supply 1, the output voltage of AC / DC power supply 1 will drop because the overcurrent protection of AC / DC power supply 1 is current limiting protection. When the voltage drops to the same level as the output voltage of battery pack 4, battery pack 4 participates in the power supply system. AC / DC power supply 1 and battery pack 4 jointly supply power to the phased array antenna, thereby meeting the short-term high-power power demand of the phased array antenna and increasing the output power of the power supply system.
[0023] The simplified installation structure of this utility model is as follows: AC / DC power supply 1 is designed as a rack-mounted chassis and installed on a cabinet inside the vehicle equipment compartment. Its output power is transmitted to the first backflow prevention circuit 2 via a cable. DC / DC charging unit 3 is a rack-mounted chassis with air-cooling heat dissipation device; The first backflow prevention circuit 2 and the second backflow prevention circuit 6 are installed inside a rack-mounted chassis. The chassis is designed with an air-cooling device, and the heat generated by the first backflow prevention circuit 2 and the second backflow prevention circuit 6 during operation is dissipated through the air-cooling device. Battery pack 4 and charging / discharging control circuit 5 are installed in a box to form an energy storage unit. The heat generated by battery pack 4 during operation is dissipated by the air-cooling heat dissipation device built into the box. The upper part of the rainproof box of the energy storage unit is designed with an equipment mounting frame for installing the DC / DC charging unit 3 box and the first anti-backflow circuit 2 and the second anti-backflow circuit 6 box.
[0024] The DC / DC charging unit 3, the chassis for installing the first anti-backflow circuit 2 and the second anti-backflow circuit 6, and the energy storage unit all adopt a rainproof and sealed enclosure structure, which can be installed on the vehicle's external platform without occupying the space of the equipment inside the cabin.
[0025] It should be noted that the above description is merely a preferred application example of this utility model and is not intended to limit the scope of protection of this utility model. All technical solutions employing equivalent substitutions or equivalent transformations are within the scope of protection of this utility model.
Claims
1. A vehicle-mounted phased array antenna power amplification system, characterized in that: It includes an AC / DC power supply (1) and an energy storage unit, wherein the AC / DC power supply (1) and the energy storage unit are connected in parallel through a first anti-backflow circuit (2) and a second anti-backflow circuit (6) to form a common bus. The AC / DC power supply (1) is used to isolate and convert the input AC power into DC power, which is then fed into the common bus through the first anti-backflow circuit (2) to power the phased array antenna. The energy storage unit is used to supply power to the phased array antenna when the output power of the AC / DC power supply (1) does not meet the power consumption of the vehicle-mounted phased array antenna. The output current is fed into the common bus through the second anti-backflow circuit (6).
2. The vehicle-mounted phased array antenna power supply system according to claim 1, characterized in that: The AC / DC power supply (1) output overcurrent protection mode is current limiting protection. When the power consumption of the phased array antenna exceeds the output power of the AC / DC power supply (1), its output current remains constant and the output voltage drops, thereby matching the output voltage of the energy storage unit and realizing parallel operation of the AC / DC power supply (1) and the energy storage unit.
3. The vehicle-mounted phased array antenna power supply system according to claim 1, characterized in that: The first anti-backflow circuit (2) and the second anti-backflow circuit (6) are composed of diodes connected in parallel according to their respective output currents.
4. The vehicle-mounted phased array antenna power supply system according to claim 1, characterized in that: It also includes a DC / DC charging unit (3); the input end of the DC / DC charging unit (3) is connected to the output of the AC / DC power supply (1), and the output end is connected to the energy storage unit. When the vehicle phased array antenna is not working and the battery pack (4) needs to be replenished with energy, it replenishes the energy storage unit with energy.
5. The vehicle-mounted phased array antenna power supply system according to claim 4, characterized in that: The energy storage unit includes a battery pack (4) and a charge / discharge control circuit (5); The charging and discharging control circuit (5) is used for the charging and discharging control of the battery pack (4); when the battery pack (4) needs to replenish power, it is charged by the DC / DC charging unit (3); when the power consumption of the phased array antenna exceeds the output power of the AC / DC power supply (1), the battery pack (4) is controlled to discharge to the outside, and the output current of the battery pack (4) is fed into the common bus through the second anti-backflow circuit (6).
6. The vehicle-mounted phased array antenna power supply system according to claim 5, characterized in that: The charge and discharge control circuit (5) includes a load pre-charge resistor (7) and a DC contactor (8) connected in parallel. One end is connected to the battery pack (4), and the other end is connected to the DC / DC charging unit (3) and the second anti-backflow circuit (6). When the battery pack (4) needs to be replenished with power, the DC contactor (8) closes and the DC / DC charging unit (3) charges the battery pack (4); when the battery pack (4) needs to be discharged to the outside, the capacitor on the phased array antenna is precharged first through the load precharge resistor (7) and the second anti-backflow circuit (6), and the DC contactor (8) closes after a delay.