基于DSP的船舶电站数字化自动准同步并车装置设计.pdfVIP

学兔兔 总第47卷 第540期 电测与仪表 Vo1．47 No．540 2010年 第12期 Electrical Measurement InstrumentatiOn Dec．2010 基于DSP的船舶电站数字化自动准同步并车装置设计 季本山 ，曹兵 ，李福林 (1．南通航运职业技术学院交通工程系，江苏南通226010；2．锦州供电公司，辽宁锦州121000； 3．黑龙江省质量监督检测研究院，哈尔滨150050) 摘要：为了提高船舶电站自动并车的可靠性，采用数字化的方法，提出了船舶电站自动准同步并车装置的设计 方案。该设计方案在硬件上采用了压频转换电路、光电编码器及DSP技术测量并车条件电信号；在软件上采用了 最小二乘曲线拟合算法抑制了谐波与噪声对电压过零点的干扰，从而准确预估提前合闸时间实现并车。试验检 测结果表明，该装置在船舶电站并车的可靠性高、抗干扰能力强，现场运行效果好。 关键字：船舶电站；并车；最小二乘曲线拟合 中图分类号：TM624 文献标识词：B 文章编号：1001—1390(2010)12—0065—04 Design of Ship Power Station Digital Automatic Synchronous Paralleling Device Based on DSP JI Ben—san ，CAO Bing2，YANG Fu -Lin (1．Nantong VocationalTechnical Shipping College，Nantong 226010，Jiangsu，China． 2．Jinzhou Power Supply Company，Jinzhou 1 2 1 000，Liaoning，China． 3．The Academy of Quality Inspection and Research in Heilongjiang Province，Harbin 1 50050，China) Abstract：In order to improve the automatically paralleling reliability of a ship power station，by digital methods，the paper proposes a digital automatic synchronous paralleling design program，which is based Oil DSP technology by means of the voltage to~equency conversion circuit，photoelectric eneoder and DSP technology to measure the paralleling condition signa1．The voltage zero-crossing point interference，which is caused by resonance and noise，is suppressed by the software design taken advantage of the least——squares curve fitting to accurately predict the advanced closing time．The testing results show that the device has a high reliability and good anti-interference ability when paralleling． Key words：ship power station，paralleling，least squares c