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船载大型测控天线伺服系统的最内环是伺服驱动分系统,是整个伺服系统的设计关键。从硬件设计出发,系统综合运用四象限运行的思想设计了可控硅整流系统整流放大系统,设计了三相零式反并联整流电路,实现了伺服驱动装置可逆,可调稳态变速运行。采用环流抑制技术解决了晶闸管整流带来的缺陷,实现了对环流、谐波的有效抑制。为了消除齿轮间隙,采用双传动链设计方案。多次实践检验证明了该控制策略具备优越的控制性能,雷达跟踪快速稳定。
The most inner loop of the shipborne large-scale test and control antenna servo system is the servo drive subsystem, which is the key of the whole servo system design. Starting from the hardware design, the system uses the idea of four-quadrant operation to design a rectification and amplification system of a thyristor rectifier system. A three-phase zero-type anti-parallel rectifier circuit is designed to realize a reversible and adjustable steady-state variable speed operation of the servo drive device. The use of circulating current suppression technology to solve the thyristor rectifier defects, to achieve the circulation, harmonic suppression. In order to eliminate gear gap, dual drive chain design. Multiple practical tests show that the control strategy has superior control performance, radar tracking fast and stable.