1) DC capacity increment
直流增容
1.
The adaptability of power grid was studied in detail, and power grid structure and stability of power system influenced by DC capacity increment was analyzed.
根据特高压电网规划,为充分发挥特高压直流系统的输电能力,在±800kV特高压直流电压等级不变的情况下,将直流输电功率提升至3个不同水平(7000MW、7200MW和7600MW),详细研究了特高压直流增容条件下系统的适应性,分析了直流增容对规划网架及系统稳定性的影响。
2) DC capacitor
直流电容
1.
A simulation system of reactive compensation with STATCOM is constructed using PSCAD / EMTDC and the effect of DC capacitor on system THD ( Total Harmonic Distortion ) and its voltage fluctuation amplitude is analyzed.
使用PSCAD/EMTDC软件建立一个利用静止补偿器STATCOM(STATicCOMpensator)进行无功补偿的仿真系统,分析了不同STATCOM直流电容值对系统谐波含量和电容电压波动幅值的影响,得出了系统谐波含量和直流电容电压波动幅值随电容值的变化规律,提出了根据降低STATCOM出口端电压的谐波含量和保持直流电容电压波动幅值在一定范围内的要求来选择其电容值的方法,由该方法得出的仿真系统中STATCOM的电容值跟按其他直流电容选择方法所得的结果相符。
2.
Single-PWM converter without DC capacitor is one of the new power converters with reduced capacitor or reactor, which has many merits, such as simple structure, high voltage utilization, low switch-loss and so on.
无直流电容单PWM型功率变换器是减少大容量无功元件的新型拓扑之一,该功率变换器具有结构简单、电压利用率高、损耗较低等优点,其难点问题是如何实现整流桥安全换流。
3) direct current capacity
直流容量
4) DC gain
直流增益
1.
In this paper,it is described that the uncertainty of evaluation results of DC gain and offset of linear measurement system by using the terminal-based straight line method,including the courses of analysis and evaluation of uncertainty.
介绍了用端基直线法评价线性测量系统直流增益和直流偏移指标时,测量结果的不确定度,包含了测量结果的不确定度分析和评价过程。
2.
The uncertainty of evaluation results of DC gain and offset of linear measurement system by using the least mean square method, including the courses of analysis and evaluation of uncertainty of them, is described.
介绍了用最小二乘法评价线性测量系统直流增益和直流偏移指标时测量结果的不确定度分析和评价过程。
3.
In this paper,a study has been done on the low temperature Charateristics of the DC gains of low frequency large power silicon transitors.
就晶体管的直流增益 h F E在 - 5 5℃低温条件下的变化及如何提高参数性能做了专题研
5) DC bus capacitor
直流侧电容
1.
The principle of energy commutation among voltage-source APF(Active Power Filter),source and nonlinear load is studied,the stability of DC bus capacitor voltage is analyzed and a method maintaining the stability of DC bus capacitor voltage is presented,based on which,a control method for voltage source APFs is introduced with the deduction of its control equations.
研究了电压源型有源电力滤波器、电源及非线性负载三者之间的能量交换机理,分析了变流器直流侧电容电压的稳定问题,提出了维持直流侧电容电压稳定的新方法。
2.
The stability of the dc bus capacitor voltage is directly connected with the compensatory capability of an voltage source active power filter.
电压源型有源电力滤波器直流侧电容电压的稳定程度对补偿性能有直接的影响。
3.
Based on the research of energy commutation among APF,source and nonlinear load,this paper analyzes the stability of DC bus capacitor voltage theoretically and presents a novel simplified digital control method for voltage source single-phase active power filters.
该文研究了单相有源电力滤波器、电源及非线性负载之间能量交换机理;在此基础上对变流器直流侧电容电压的稳定问题进行了理论分析,并提出了一种简单的应用于单相电压源型有源电力滤波器的数字化控制方法。
6) dc-link capacitor
直流侧电容
1.
Based on analyzing the control strategy on dc-link capacitor voltage of unified power flow controller(UPFC), it proposed the soft control strategy on dc-link capacitor voltage and analyzed the relationship between capacitance, dc voltage and power transmitted on the line.
在分析UPFC直流侧电容电压传统控制方式的基础上,提出了直流侧电容电压弱控制策略的概念,并分析了直流侧电容容量、直流侧电压等级和线路传输功率之间的关系。
补充资料：直流
直流
Direct current
直流(direet。urrent) ，仅按一个方向流过电路或设备的电流称为直流。与交流电压相比，直流电压的极性是不变的。直流电流相当于电荷沿着闭合的电路以不变的方向流动或位移。直流电流和电压的幅值可以恒定，也可以随时间变化。 蓄电池和旋转发电机产生幅值恒定的额定直流电压，整流器产生幅值随时间而变的直流电压。整流器把交流电压变换为脉动的直流电压。 通常电站不是广泛地将直流电输配给一般用户，相反，在需要直流电(d。)能的场所，是把商业上合用的交流电(ac)能整流为直流电能。 「罗布(D.D.Robb)撰]
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条