1) neutral point clamped(NPC)

中性点箝位型
1.
Based on series connected integrated gate-commutated thyristors(IGCT) used in neutral point clamped(NPC) three-level medium voltage drives(MVD),a reasonable design of the DC-link(including DC-link choke,DC-link resistor and clamped capacitor) is very important to the MVDs safe operation.
基于集成门极换向晶闸管(IGCT)串联的中性点箝位型三电平高压大功率变频器中,变频器直流环节(包括限流电感、箝位电容及限流电阻)参数设置合理与否关系到高压变频器的安全运行。
2) neutral-point-clamped

中性点箝位
1.
A novel two-arm asymmetry three-level neutral-point-clamped switching mode PWM rectifier is proposed, the mathematical model of the rectifier is derived, and the working mode and the constant- frequency PWM control method are analyzed in detail.
该文提出一种新型的两桥臂非对称三电平中性点箝位开关模式PWM整流电路拓扑,详细分析了其数学模型,深入研究了该PWM整流器的工作模式及其恒频PWM控制方法。
2.
The mathematical model and working modes o a novel three-phase two-arm three-level neutral-point-clamped(NPC) pulse width modulation(PWM) rectifier suitable fo direct-driving wind power system are analyzed in detail, and the constant frequency control strategies based on space voltage vectors are proposed and applied to the rectification conversion of direct-driven power generation system.
系统分析了新型三相两桥臂三电平中性点箝位脉宽调制(pulsewidthmodulation,PWM)整流器的数学模型和工作模式,提出了基于空间电压矢量的恒频控制策略,并将其应用于直驱风力发电系统整流变换中。
3.
The mathematical model and working modes of the three-phase two-arm three-level neutral-point-clamped (NPC) pulse width modulation (PWM) rectifier were analyzed, and a novel dual single-input single-output (SISO) model based on α-β stationary reference frame was proposed, in which the α-axis and β-axis equivalent model are shown to be similar to two traditional single-phase boost converters.
系统分析三相两桥臂三电平中性点箝位脉宽调制(pulse width modulation,PWM)整流器的数学模型和工作模式,提出一种基于α-β静止参考坐标系的双单输入单输出模型,在两相静止坐标系中将三相两桥臂三电平PWM整流器简化为2个与传统单相升压变换器类似的电路结构。
6) NPC(neutral point clamped)

三电平中性点箝位
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性质:又称通用洗净剂。一种适用于家庭、工作场所、公共设施的洗净剂。可用于洗净织物、硬表面以保持洗净对象的卫生、美观与维持使用。在商业上大面积表面清洗常用机械操作,在家庭一般用人工操作。洗净剂要求有较好去污性能、适度泡沫。人工操作要求低碱性,减少对皮肤刺激,用机械操作时碱性可高些。洗净剂是由表面活性剂(如阴离子表面活性剂与非离子表面活性剂)含量1%~20%,钙镁离子螯合剂1%~10%,碱性盐0~10%等组成。产品有粉状、液状、浆状等。
CAS号:
性质:又称通用洗净剂。一种适用于家庭、工作场所、公共设施的洗净剂。可用于洗净织物、硬表面以保持洗净对象的卫生、美观与维持使用。在商业上大面积表面清洗常用机械操作,在家庭一般用人工操作。洗净剂要求有较好去污性能、适度泡沫。人工操作要求低碱性,减少对皮肤刺激,用机械操作时碱性可高些。洗净剂是由表面活性剂(如阴离子表面活性剂与非离子表面活性剂)含量1%~20%,钙镁离子螯合剂1%~10%,碱性盐0~10%等组成。产品有粉状、液状、浆状等。
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