阅读说明：本技术 一种隔离型卫星电源控制器 (Isolated form satellite power supply controller ) 是由 鲁伟 王保平 赵春阳 陈洪涛 孙宏杰 张泰峰 赵秋山 代磊 于 2021-06-25 设计创作，主要内容包括：本发明公开了一种隔离型卫星电源控制器,属于卫星电源控制器技术领域,其特征在于,至少包括：与太阳电池阵连接的太阳电池功率调节器；与负载连接的母线电容；与蓄电池组连接的隔离型蓄电池充放电调节器和脉动负载；其中：所述太阳电池功率调节器的正极通过母线电容与太阳电池功率调节器的负极连接；所述隔离型蓄电池充放电调节器的正极与太阳电池功率调节器的正极连接；所述隔离型蓄电池充放电调节器的负极与太阳电池功率调节器的负极连接。由于本发明采用了隔离型蓄电池充放电调节器电路,因此能够显著增强电源控制器的负载适应能力,提高母线电压品质。(The invention discloses an isolated satellite power controller, which belongs to the technical field of satellite power controllers and is characterized by at least comprising the following components: a solar cell power regulator connected to the solar cell array; a bus capacitor connected to the load; the isolated storage battery charging and discharging regulator and the pulsating load are connected with the storage battery pack; wherein: the anode of the solar cell power regulator is connected with the cathode of the solar cell power regulator through a bus capacitor; the positive electrode of the isolated storage battery charge-discharge regulator is connected with the positive electrode of the solar battery power regulator; and the negative electrode of the isolated storage battery charge-discharge regulator is connected with the negative electrode of the solar battery power regulator. Because the isolated storage battery charge-discharge regulator circuit is adopted, the load adaptability of the power supply controller can be obviously improved, and the bus voltage quality is improved.)

1. An isolated satellite power controller, comprising at least:

a solar cell power regulator connected to the solar cell array;

a bus capacitor connected to the load;

the isolated storage battery charging and discharging regulator and the pulsating load are connected with the storage battery pack; wherein:

the anode of the solar cell power regulator is connected with the cathode of the solar cell power regulator through a bus capacitor; the positive electrode of the isolated storage battery charge-discharge regulator is connected with the positive electrode of the solar battery power regulator; and the negative electrode of the isolated storage battery charge-discharge regulator is connected with the negative electrode of the solar battery power regulator.

2. The isolated satellite power controller of claim 1, wherein: the isolated storage battery charging and discharging regulator comprises a first energy storage inductor, a second energy storage inductor and a transformer; wherein: the positive electrode of the storage battery pack is respectively connected with the left terminals of a first energy storage inductor and a second energy storage inductor, the right terminal of the first energy storage inductor is connected with the upper terminal of the primary side of the transformer through a parasitic inductor, and the second energy storage inductor is connected with the lower terminal of the primary side of the transformer; the right terminal of the first energy storage inductor is connected with the cathode of the storage battery pack through the first power tube and the input voltage-stabilizing capacitor in sequence; the right side terminal of the first energy storage inductor is connected with the right side terminal of the second energy storage inductor through a first power tube and a second power tube in sequence, and the right side terminal of the second energy storage inductor is connected with the negative electrode of the storage battery pack through a fourth power tube; the right terminal of the first energy storage inductor is connected with the negative electrode of the storage battery pack through a third power tube; the upper terminal of the secondary side of the transformer is connected with the lower terminal of the secondary side of the transformer through a fifth power tube and a sixth power tube in sequence; the lower terminal of the secondary side of the transformer is connected with the upper terminal of the secondary side of the transformer through an eighth power tube and a seventh power tube in sequence; and the sixth power tube is connected with the eighth power tube through an output voltage stabilizing capacitor.

Technical Field

The invention belongs to the technical field of satellite power controllers, and particularly relates to an isolated satellite power controller.

Background

In the design of a traditional satellite power supply controller, in order to meet the power supply requirement of a pulsating load, the pulsating load is usually directly connected to two ends of a storage battery pack, and the storage battery pack provides short-time high-power pulse power; and for a stable platform load, the platform load is connected to two ends of the bus capacitor and is supplied with power by the direct current bus. The power supply block diagram is shown in fig. 1, and the power supply controller is in a non-isolated form and comprises a solar cell power regulator, a storage battery charging and discharging regulator, a bus capacitor and the like. The solar cell power regulator regulates the output power of the solar cell array to generate a stable direct current bus; the storage battery charging and discharging regulator charges the storage battery pack in the illumination period to ensure the energy balance of the storage battery, and regulates the storage battery pack to discharge when the shadow period or the output power of the solar battery array is insufficient to ensure the voltage stability of a bus; the bus capacitor plays a role in maintaining the bus voltage stable. The mode can meet the power supply requirement of the pulsating load, but when the pulsating load works, the voltage of the storage battery pack is in a periodic fluctuation state, and the power supply controller is in a non-isolated type, so that the periodic fluctuation is transmitted to a direct current bus by the storage battery charge-discharge regulator, the quality of the bus is deteriorated, and the ripple and the peak of the bus voltage are increased.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an isolated satellite power supply controller, which is used for solving the problem that the quality of bus voltage of the traditional satellite power supply controller is reduced under the action of a pulsating load, increasing the load adaptability of the power supply controller and meeting the application requirements of strong adaptability and high quality of the power supply controller.

The invention aims to provide an isolated satellite power controller, which comprises:

a solar cell power regulator connected to the solar cell array;

a bus capacitor connected to the load;

the isolated storage battery charging and discharging regulator and the pulsating load are connected with the storage battery pack; wherein:

the anode of the solar cell power regulator is connected with the cathode of the solar cell power regulator through a bus capacitor; the positive electrode of the isolated storage battery charge-discharge regulator is connected with the positive electrode of the solar battery power regulator; and the negative electrode of the isolated storage battery charge-discharge regulator is connected with the negative electrode of the solar battery power regulator.

Preferably: the isolated storage battery charging and discharging regulator comprises a first energy storage inductor, a second energy storage inductor and a transformer; wherein: the positive electrode of the storage battery pack is respectively connected with the left terminals of a first energy storage inductor and a second energy storage inductor, the right terminal of the first energy storage inductor is connected with the upper terminal of the primary side of the transformer through a parasitic inductor, and the second energy storage inductor is connected with the lower terminal of the primary side of the transformer; the right terminal of the first energy storage inductor is connected with the cathode of the storage battery pack through the first power tube and the input voltage-stabilizing capacitor in sequence; the right side terminal of the first energy storage inductor is connected with the right side terminal of the second energy storage inductor through a first power tube and a second power tube in sequence, and the right side terminal of the second energy storage inductor is connected with the negative electrode of the storage battery pack through a fourth power tube; the right terminal of the first energy storage inductor is connected with the negative electrode of the storage battery pack through a third power tube; the upper terminal of the secondary side of the transformer is connected with the lower terminal of the secondary side of the transformer through a fifth power tube and a sixth power tube in sequence; the lower terminal of the secondary side of the transformer is connected with the upper terminal of the secondary side of the transformer through an eighth power tube and a seventh power tube in sequence; and the sixth power tube is connected with the eighth power tube through an output voltage stabilizing capacitor.

The beneficial effect of this application is:

the invention is suitable for the application occasions with high bus voltage quality requirements. Compared with the prior art, the invention has the outstanding advantages of small ripple and peak of the bus voltage, low capacitance value of the bus output voltage-stabilizing capacitor and wide application range of the controller, and is particularly suitable for occasions with high requirements on the performance of the power supply controller.

1. The invention enhances the adaptability of the satellite power supply controller to the pulsating load, and has important significance for improving the quality of the bus voltage and reducing the capacitance value of the output voltage-stabilizing capacitor;

2. by adopting the isolated storage battery charge-discharge regulator, the invention can flexibly realize the functions of boosting and reducing voltage in a wide range and has wider application range;

3. the circuit has good dynamic and static performances, high power conversion efficiency and excellent quality of bus voltage.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a power supply block diagram of a conventional satellite power supply controller.

Fig. 2 is a power supply block diagram of an isolated satellite power controller according to the present invention.

Fig. 3 is a circuit diagram of an isolated battery charge-discharge regulator in accordance with the present invention.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the circuit diagram of the invention, the components such as the inductor, the capacitor, the power tube and the like can also be an equivalent inductor, capacitor and power tube combination network, but the circuit diagram of the invention is the simplest.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 2, an isolated satellite power controller includes:

a solar cell power regulator connected to the solar cell array;

a bus capacitor connected to the load;

the isolated storage battery charging and discharging regulator and the pulsating load are connected with the storage battery pack; wherein:

the anode of the solar cell power regulator is connected with the cathode of the solar cell power regulator through a bus capacitor; the positive electrode of the isolated storage battery charge-discharge regulator is connected with the positive electrode of the solar battery power regulator; and the negative electrode of the isolated storage battery charge-discharge regulator is connected with the negative electrode of the solar battery power regulator.

Please refer to fig. 3: the isolated storage battery charging and discharging regulator comprises a first energy storage inductor L1, a second energy storage inductor L2 and a transformer T; wherein: the positive electrode of the storage battery pack is respectively connected with the left terminals of a first energy storage inductor L1 and a second energy storage inductor L2, the right terminal of the first energy storage inductor L1 is connected with the upper terminal of the primary side of the transformer through a parasitic inductor Lk, and the second energy storage inductor L2 is connected with the lower terminal of the primary side of the transformer; the right terminal of the first energy storage inductor Lk is connected with the cathode of the storage battery pack through a first power tube S1 and an input voltage stabilization capacitor C1 in sequence; the right terminal of the first energy storage inductor L1 is connected with the right terminal of the second energy storage inductor L2 through a first power tube S1 and a second power tube S2 in sequence, and the right terminal of the second energy storage inductor L2 is connected with the negative electrode of the storage battery pack through a fourth power tube S4; the right terminal of the first energy storage inductor L1 is connected with the negative electrode of the storage battery pack through a third power tube S3; the upper terminal of the secondary side of the transformer is connected with the lower terminal of the secondary side of the transformer through a fifth power tube S5 and a sixth power tube S6 in sequence; the lower terminal of the secondary side of the transformer is connected with the upper terminal of the secondary side of the transformer through an eighth power tube S8 and a seventh power tube S7 in sequence; the sixth power tube S6 and the eighth power tube S8 are connected through an output voltage stabilizing capacitor C2.

The preferred embodiment mainly comprises a solar cell power regulator, an isolated storage battery charging and discharging regulator, a bus capacitor and the like. As an improved scheme, the isolated type satellite power controller adopts an isolated type storage battery charge-discharge regulator, so that the influence of pulsating load disturbance on the bus voltage is eliminated from physical connection, the quality of the bus voltage is improved, and the voltage-stabilizing capacity value of a bus capacitor is obviously reduced; in addition, the isolated satellite power supply controller has wider application range and can be compatible with the application field of the traditional non-isolated power supply controller.

The isolated storage battery charging and discharging regulator comprises eight power tubes S1-S8; two energy storage inductors L1-L2, a parasitic inductor Lk; transformer T, primary and secondary windings T1 and T2 of the transformer; an input voltage stabilizing capacitor C1 and an output voltage stabilizing capacitor C2. The primary side and the secondary side of the charge-discharge regulator circuit are all full-bridge conversion circuits, and when the storage battery pack discharges to the bus side, the circuit works in a staggered parallel Boost mode; when the bus side charges the storage battery pack side, the circuit works in a staggered parallel Buck voltage reduction mode. The circuit can realize voltage and current double closed-loop control, has good dynamic and static performances, can realize zero-voltage conduction of all power tubes, and has higher power conversion efficiency; in addition, by the configuration of the primary and secondary windings T1 and T2 of the transformer, the voltage boosting and reducing functions in a wide range can be flexibly realized, and the application range is wider.

The invention adopts the isolated storage battery charge-discharge regulator circuit, thereby obviously enhancing the load adaptability of the power supply controller and improving the bus voltage quality.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.