Method for reducing main backup magnetic coupling of solar panel driving circuit
A driving circuit, windsurfing driving technology, applied in the direction of motor generator control, AC motor control, electrical components, etc., can solve the problems of redundant design, stress impact of non-energized components, loss of driving function, etc., to improve product reliability , the effect of ensuring correctness and consistency
Active Publication Date: 2015-07-08
BEIJING INST OF CONTROL ENG
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Therefore, although the two sets of lines are independent from each other in principle, since the main winding and the backup winding are in parallel winding mode, the working motor winding will apply electrical stress to the non-working line through electromagnetic coupling at this time. Stress shocks from non-energized devices
[0004] In addition, the device connected to the winding of the single line output interface fails. For example, the breakdown of the triode CE causes the connected single winding to be short-circuited to the ground. Even one copy cannot work normally, causing the performance of the whole machine to decline or even fail, and the main backup cannot achieve the purpose of redundancy design
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[0014] The basic idea of the method of the present invention is: while retaining two sets of relatively independent main and backup driving circuits, increase the switching circuit, and set two groups of relays before and after each driving output path, so that the main backup of the driving circuit and the main backup of the motor winding load The connection can be controlled to ensure that the non-working drive line and the non-working motor winding are isolated by the relay and are not affected by the current of the working winding, thereby solving the coupling interference problem between the main and backup drive lines.
[0015] The stepper motors used in sailboard driving are generally 2-phase, that is, the windings are 2 groups. For 2-phase, 4-phase or more-phase stepper motors, this design method is applicable. Here, 1 group of windings (AM1-AM1' The connection and switching method of BM1-BM1' is the backup), and the implementation methods are the same for multi-phase...
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Provided is a method for reducing main backup magnetic coupling of a solar panel driving circuit. A circuit switching relay set and a winding switching relay set are added among a main driving circuit and a backup driving circuit of a solar panel driving device and single-phase machine windings of the solar panel driving device, wherein the circuit switching relay set is used for switching the machine windings to use the main driving circuit or use the backup driving circuit, and the winding switching relay set is used for switching electrical machines to use main windings or backup windings. According to the method, the switching circuit is introduced to completely eliminate the influence of the coupling between the main circuits and the backup circuits, the aim of strict cold backup is achieved, through switching control, the solar panel driving circuit is made to have four driving modes to drive the machine windings to work, the electrical machines are guaranteed to work normally when any single driving circuit faults and any single machine winding open circuit faults occur simultaneously, and the reliability of products is improved greatly.
Description
technical field [0001] The invention relates to an electrical connection method for a solar sail panel drive circuit and a drive mechanism, which is suitable for a three-axis stable satellite platform adopting a sail panel drive mechanism. Background technique [0002] In order to meet the on-orbit energy supply, most three-axis stabilized satellites use sail-type solar arrays and use solar array drive devices to orient the solar arrays toward the sun. The solar panel driving device is composed of a driving mechanism and a driving circuit. The driving mechanism usually uses a stepping motor as the driving source. In order to meet high reliability requirements, each phase winding of the motor is composed of a main winding and a backup winding, such as a two-phase motor , its winding group is divided into 2 groups, a total of 4 wires and 8 lead wires. The primary winding and the backup winding are in parallel mode, and only a single winding (main or backup) is energized to wo...
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IPC IPC(8): H02P25/16H02P25/18H02P8/00
Inventor 张兴国李庆周世安雷海军范松涛吴一帆
Owner BEIJING INST OF CONTROL ENG