LIU XIANXING (Total 169 Patents Found)

本发明提供一种柔性氧化锌肖特基二极管及其制备方法,采用溶胶凝胶法,以硝酸锌有机溶液和聚四乙烯基苯酚有机溶液等试剂在具有柔性衬底的ITO导电层上形成具有较好柔性的聚四乙烯基苯酚杂化的氧化锌薄膜,并采用热蒸发镀膜法在所述...
本发明公开了一种神经网络广义逆无轴承永磁同步电机解耦控制器构造方法,是由两个Clark逆变换、两个电流跟踪型逆变器及无轴承永磁同步电机及其负载模型作为一个整体组成复合被控对象;采用静态神经网络加若干线性环节来构造复合被控...
本发明涉及一种双孔眼板固定件,包括固定件本体,所述固定件本体成左右两侧对称结构,所述固定件本体中间设有两个连接孔,所述两个连接孔上端的固定件本体为两段与连接孔同心的圆弧,所述两圆弧之间通过相切直线相连,所述两圆弧...
The invention discloses a bearing-free asynchronous motor control method based on a neural network inverse system theory. A composite controlled object is composed of two sets of Park inverse transformation, two sets of Clark inverse transformation, two sets of current regulating inverters, a flux linkage observer, and...
The invention belongs to the field of inorganic non-metallic materials, and discloses a sintering synthesis method of a metal-based ceramic material Al-Zr2P2WO12 having a controllable thermal expansion coefficient. The sintering synthesis method utilizes ZrOCl2.8H2O, 5(NH4)2O.12WO3.5H2O and NH4H2PO4 as raw materials. T...
The invention discloses a direct-driven type magnetic suspension wind power generator which is composed of an internal stator, an external stator and a cup-type rotor. Eight radial suspension windings are arranged on the external surface of the internal stator in an evenly-spaced way so that suspension of the rotor alo...
本实用新型公开一种基于ZigBee的封闭式开关柜在线监测装置,包括监控中心、ZigBee协调器、路由器、ZigBee子节点、电参数监测模块、温湿度监测模块和断路器机械特性监测模块;所述监控中心与ZigBee协调器连接,所述ZigBee协调器与路由器连接...
The utility model relates to a power station circulating water system, and provides a power station circulating water system based on the artesian water diversion technology. The power station circulating water system comprises a high-position water source arranged at the high position, a water inlet is formed inside t...
The utility model relates to a vertical base for the container ligature, including being provided standard corner fittings hole (1) of up end (2), up end (2) are circularly, up end (2) center is equipped with standard corner fittings hole (1), the direction that standard corner fittings hole (1) corresponds (1) four li...
本发明公开了一种神经网络广义逆无轴承永磁同步电机解耦控制器构造方法,是由两个Clark逆变换、两个电流跟踪型逆变器及无轴承永磁同步电机及其负载模型作为一个整体组成复合被控对象;采用静态神经网络加若干线性环节来构造复合被控...
本发明提供了一种新型负膨胀材料HfScMo2PO12及其固相烧结合成方法。所述的负膨胀材料,其特征在于,其分子式为:HfScMo2PO12。上述的负膨胀材料的固相烧结合成方法,其特征在于:以HfO2、Sc2O3、MoO3和NH4H2PO4为原料,按目标产物HfScMo2PO12中化学...
The utility model relates to a container connecting part which comprises a part body, a positioning block is arranged on the upper portion of the part body and provided with two upper hook heads contrary in orientation, the side surface of the positioning block on the lower sides of the upper hook heads is a positionin...
An on-line monitor device for a low-voltage alternating-current draw-out type switch cabinet is characterized in that a data collecting module, an A/D converter, a DSP control platform, a CAN bus communication serial port, a display module, an upper computer and an external power module are included; the data collectin...
本发明公开一种任意层次实时扇区细分型的直接转矩控制方法,其包括以下步骤:S1:确定当前电机控制系统的扇区总数x,根据公式确定扇区关系系数n;S2:根据扇区关系系数n、基本矢量总数m构建m层扇区总图;S3:判断当前电机磁链所在的位...
本发明提供了一种新型负膨胀材料ZrScMo2PO12及其固相烧结合成方法。所述的负膨胀材料,其特征在于,其分子式为:ZrScMo2PO12,其固相烧结合成方法,包括:以ZrO2、Sc2O3、MoO3和NH4H2PO4为原料,按目标产物ZrScMo2PO12中化学计量比Zr∶Sc∶Mo∶P=1∶1...
本发明公开了一种模块互补型磁通切换永磁直线电机,包括初级和次级,所述初级和次级均为凸极结构,所述初级和次级之间存在气隙;所述初级包括初级铁芯、永磁体、非导磁块、电枢绕组,所述初级铁芯形成导磁齿,所述永磁体和其两侧...
The present invention discloses a stability judging method for a water feeding pump working point. The method comprises: fitting a water feeding pump pressure head; carrying out fitting calculation on a condensate pump pressure head; carrying out resistance calculation on a working point of a water supply system; calcu...
The invention discloses a conflict evidence fusion method based on vector measurement. According to the method, measurement of conflict degree between evidences in multi-source information fusion can be realized, weight factors of fusion evidences can be determined through the measurement of conflict degree between the...
本发明公开了一种自然循环蒸汽发生器的热传导建模与计算方法。基于圆筒壁无内热源一维导热微分方程通过将自然循环蒸汽发生器传热管和污垢中的温度分布表示为传热管一次侧壁温、二次侧壁温和污垢外表面温度的函数,并假定动态过程...
本发明公开了一种空排止回阀的建模方法。基于空排止回阀的工作原理,从阀瓣组件的动力学方程出发,建立了一套完整的空排止回阀建模、计算与仿真处理方法,能用于含空排止回阀的蒸汽动力装置给水系统高精度的动态特性分析,也能用...
The invention belongs to the technical field of negative thermal expansion composite materials, and in particular relates to a novel composite material Al-Y2W3O12 and a preparation method thereof. The composite material is prepared by solid-phase sintering of aluminium and Y2W3O12, wherein the aluminium is 20-80% of to...
本发明提出了一种无刷直流电机转矩脉动抑制方法,其是结合离散型空间电压矢量调制的无刷直流电机直接转矩控制,包括以下步骤:步骤1、检测电机的反电动势;步骤2、确立逆变器开关组合状态和直接转矩控制扇区系统;步骤3、确立系统...
The invention relates to a container connecting piece. The container connecting piece comprises a body. A locating block is arranged on the upper portion of the body. The locating block is provided with two upper hook heads facing opposite directions. The side surfaces of the portion, below the upper hook heads, of the...
本发明涉及一种动力电池荷电状态估算方法,其特征在于,包含以下步骤:综合电池上一次的充放电状态、上一次使用后的电池SOC值及电池的静置时间估算电池的SOC初始值;计算电池内阻及电池的极化电压;实时采集电池的工作电流、电池两...
The invention discloses a novel low/water absorption free negative thermal expansion ceramic Y2Mo3O12 and a solid phase sintering synthesis method thereof, and belongs to the technical field of inorganic non-metallic materials. The ceramic is prepared by taking Y2O3, MoO3 and urea as raw materials and using the solid p...
The invention discloses a water supply pump modelling method. The water supply pump modelling method comprises the following steps of performing curve fitting of a steady-state pressure head of a water supply pump and the efficiency and the friction moment of the water supply pump according to experimental data at firs...
本发明属于无机非金属材料领域,特别公开了一种负膨胀陶瓷ZrMgMo3O12的烧结合成方法。按目标产物ZrMgMo3O12中化学计量摩尔比Zr:Mg:Mo=1:1:3称取原料,采用固相法或溶胶凝胶法对原料进行预处理,然后烧结合成得到目标产物,其中烧结参数为:烧...
一种箱式变电站智能在线故障诊断系统,包括电参量采集模块、非电参量采集模块、开关量采集模块、数据处理模块、微处理器模块、故障诊断模块、高压开关柜故障树、变压器室故障树、低压配电柜故障树、GPRS模块、监控中心、数据输出模块...
本发明涉及一种半自动扭锁,包括手柄,锁体,钢丝绳和锁轴,所述锁体内部中间布置有锁轴,所述锁轴两侧的端部分别连接上螺旋锁头和下螺旋锁头,所述锁体内部的侧面设有相对的凸台,所述相对的凸台之间安装有定位器,所述定位器中...
The invention discloses a bilateral primary permanent magnetic vernier linear motor which comprises a primary motor part and a secondary motor part. The primary motor part comprises primary iron cores, an armature winding and permanent magnets. Semi-closed groove design is adopted in the primary iron cores, the permane...