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作 者:张元园 李杰[1] 胡陈君 何淑典 李华[1] 曹宇 ZHANG Yuanyuan;LI Jie;HU Chenjun;HE Shudian;LI Hua;CAO Yu(State Key Laboratory of Dynamic Testing Technology,North University of China,Taiyuan 030051,China;Huaihai Industrial Group Co.,Ltd.,Changzhi 046012,China)
机构地区:[1]中北大学省部共建动态测试技术国家重点实验室,山西太原030051 [2]淮海工业集团有限公司,山西长治046012
出 处:《探测与控制学报》2025年第2期102-108,共7页Journal of Detection & Control
基 金:山西省基础研究基金项目(202103021224186);自然科学研究面上项目(202303021221114)。
摘 要:针对传统弹载测试系统电源无法自适应补偿线缆压降、动态负载情况下用电处无法获取精准的电压,影响电气性能的问题,提出一种基于随机逼近算法的电源系统。通过闭环控制思想实现对负载端电压的监测与实时补偿,以现场可编程门阵列(FPGA)为主控芯片,控制高精度数字电位器进行迭代,使得负载电压逐步逼近理想电压。实验结果表明,该系统最大误差为19 mV,最高转换效率为93.3%,能够对线缆阻抗导致的压降进行自适应补偿,保证负载电压维持在较高精度,满足弹载测试系统对电源的要求。In response to the issue that traditional digital power supply for missile borne testing systems can't adaptively compensate for cable voltage drops caused by resistance and cannot provide precise voltage at the point of use under dynamic load conditions,which impacts their electrical performance,a power system based on random approximation algorithm was proposed.The closed-loop control concept is used to monitor and compensate for the load voltage in real time.FPGA was used as the main control chip,and high-precision digital potentiometer is controlled for multiple iterations to gradually approximate the ideal voltage.The experiment showed that the maximum error of the system was 19 mV and the maximum conversion efficiency was 93.3%,which could adaptively compensate for the voltage drop caused by cable impedance,ensuring that the load voltage is maintained at a high accuracy,meeting the accuracy requirements of the power supply for missile testing systems.
分 类 号:TP272[自动化与计算机技术—检测技术与自动化装置] TJ760.6[自动化与计算机技术—控制科学与工程]
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