基于模糊PID控制的铸造V_3TiNi_(0.56)Cr_(0.35)合金的性能研究
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摘要
对传统PID和模糊PID控制的铸造V_3TiNi_(0.56)Cr_(0.35)合金的组织、吸氢性能和充放电循环性能进行了对比与分析。结果表明:与常规PID控制相比,采用模糊PID控制时合金的平均晶粒尺寸减小了3.5μm,吸氢120 min后的吸氢量增大了0.139%,充放电循环8次后的放电容量增大了83 mA·h/g。为了提高铸造V_3TiNi_(0.56)Cr_(0.35)合金的组织和储氢性能,熔炼和浇注过程控制方法优选模糊PID控制。
The microstructures hydrogen absorption properties and charge discharge cycle of the V_3TiNi_(0.56)Cr_(0.3) alloy cast by the traditional PID and fuzzy PID control were compared and analyzed. The results show that: compared with the conventional PID control, the average grain size of the alloy cast by the fuzzy PID control decreases by 3.5 μm, after absorbing hydrogen for 120 min, the hydrogen storage capacity increases by 0.139%, the charge discharge cycle discharge capacity after 8 times increases by 83 mA·h/g. In order to improve the microstructure and hydrogen storage properties of V_3TiNi_(0.56)Cr_(0.35) cast alloy, the control method is optimized by fuzzy PID control during melting and pouring process.
The microstructures hydrogen absorption properties and charge discharge cycle of the V_3TiNi_(0.56)Cr_(0.3) alloy cast by the traditional PID and fuzzy PID control were compared and analyzed. The results show that: compared with the conventional PID control, the average grain size of the alloy cast by the fuzzy PID control decreases by 3.5 μm, after absorbing hydrogen for 120 min, the hydrogen storage capacity increases by 0.139%, the charge discharge cycle discharge capacity after 8 times increases by 83 mA·h/g. In order to improve the microstructure and hydrogen storage properties of V_3TiNi_(0.56)Cr_(0.35) cast alloy, the control method is optimized by fuzzy PID control during melting and pouring process.
引文
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[2]董玉臻.合金元素对钒基固溶体储氢合金组织与电化学性能的影响[J].钢铁钒钛,2015,36(4):43-47.
[3]刘守平,田卫国,刘志红,等.贮氢合金V3TiNi0.56Mx耐腐蚀性能研究[J].稀有金属材料与工程,2009,38(1):15-18.
[4]贺春山.超声搅拌辅助铸造法制备新型钒基固溶体贮氢材料[J].钢铁钒钛,2014,35(5):21-24.
[5]柳雅琪,周建平,许燕,等.基于模糊PID短电弧铣削加工进给运动控制[J].制造技术与机床,2016(10):26-29.
[6]张鹏,冯显英,霍睿,等.基于变论域自适应模糊PID的注塑机温控系统研究[J].组合机床与自动化加工技术,2017(7):107-109.
[7]李新雷,郝启堂,蔡增辉,等.镁合金低压铸造连续化生产技术的研究[J].稀有金属材料与工程,2011,40(4):718-722.
[8]蔡锦达,刘劲阳,杨宝山,等.基于自适应模糊PID飞剪式冲切机控制研究[J].控制工程,2016,23(5):693-697.
[9]李富强,刘毅敏,陈建良,等.模糊PID在合金化炉炉压控制中的应用[J].自动化与仪表,2014,29(9):37-40.
[10]宋云涛,张乃禄,马陇伟,等.钛及钛合金型材挤压感应加热炉群控系统研制[J].钛工业进展,2017,34(1):42-45.