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- bus voltage failure 母线失压
- The metohd for analysing the dynamic process of auxiliary bus voltage, frequency and coastdown of reactor coolant pump at the time of power supply failure was suggested. 通过秦山核电厂在电源事故情况下,厂用母线电压,频率的动态过程研究和主泵惰走的分析研究,阐述了这一问题分析研究的方法,给出计算结果并通过动态模拟试验进行验证。
- The method for analysing the dynamic process of auxiliary bus voltage, frequency and coastdown of reactor coolant pump at the time of power supply failure was suggested. 通过秦山核电厂在电源事故情况下,厂用母线电压、频率的动态过程研究和主泵惰走的分析研究,阐述了这一问题分析研究的方法,给出计算结果并通过动态模拟试验进行验证。
- No load tap ranges should be selected to provide an adequate low-side bus voltage. 无载分接范围选择应能提供正确的低压侧母线电压。
- All of them have been operation at 300 kHz, bus voltage of 400 V, output power of 120 W, output voltage of 16 V. 它们都工作在300千赫兹,直流母线电压400伏特,输出功率120瓦特,输出电压16伏特。
- One is the low bus voltage at Omei substation;and the other is the low frequency oscillation problem. 目前台电系统中存在两个主要问题:一个是峨眉汇流排电压过低的问题,另一个是潜藏在区域间的低频振荡问题。
- The bus voltage loss w ill resu lt in power system acc ident or even large area power b lackout. 电网中运行着的母线一旦发生失压事故,会对电网造成很大的影响,甚至能迫使电网瓦解并造成大面积的停电事故。
- GPS-based synchronized phasor measurement unit(PMU) can measure the power angle or phase angle of bus voltage directly. 基于GPS的同步相量测量单元(PMU)实现了电力系统的功角或母线电压相角直接可测。
- When a fault occurs in a power system, fault area is located using Broad First Search(BFS) method by breakers and bus voltage message. 摘要电网发生故障时,根据断路器跳闸信息和母线电压信息,采用BFS(广度优先搜索)的方法搜索出故障区域。
- Abstract: When a fault occurs in a power system,fault area is located using Broad First Search(BFS) method by breakers and bus voltage message. 摘要:电网发生故障时,根据断路器跳闸信息和母线电压信息,采用BFS(广度优先搜索)的方法搜索出故障区域。
- Capacitor bus voltage is distorted due to harmonics, so both the r.m.s and crest values of the waveform should be measured in the over-voltage protection. 电容器母线电压因含有谐波而发生畸变,因此在过电压保护时要分别计算实际的电压有效值和峰值。
- The fuzzy neural network (FNN) control method was designed in the system in order to regulate direct current (DC) bus voltage, which was the object of the system. 在系统里,采用模糊神经网络控制算法实现直流总线电压的自动调整,达到稳定系统的直流总线电压的目的。
- By means of analyzing the VSC-HVDC technology, it is put forward to consider the error of the stored energy unit power as an additional signal for the DC bus voltage control. 通过对有源型电压源直流输电技术的分析,提出将储能单元的充放电功率与其参考值的偏差作为直流电压控制的附加信号的控制策略。
- Firstly the coordinate control hypostasis of the DC-module-based BIPV system was analyzed, and a coordinate control strategy based on constant of the DC bus voltage was proposed. 该文首先分析了直流模块式BIPV系统协调控制的原理,提出一种基于直流母线电压恒定的协调控制策略;
- A interval algorithm based system analysis method is proposed in the paper for predicting bus voltage sags during unsymmetrical faults in a tolerance transmission network. 摘要基于区间算法提出一种预估容差输电网发生不对称故障时引起母线电压骤降的系统分析方法。
- In many cases, however, an intermediate DC bus voltage is used, derived from an AC/DC regulator that takes a universal AC input and provides PFC, isolation, and filtering. 然而,在很多情况下,我们需要使用一个中间DC总线电压,它是由一个采用了通用AC输入并且PFC、隔离和滤波的AC/DC调节器产生的。
- Meanwhile, during the control of current regulator, the unified PI voltage control mode is adopted to maintain the DC bus voltage of cascaded multilevel inverters constant. 同时,在电流调节器的控制中,采用统一PI电压控制模式以保持级联逆变器直流母线电压的稳定。
- An ideal photovoltaic should be able to modulate active power from its minimum to its maximum power output, with some capacity to absorb of generate reactive power in order to regulate also the connection bus voltage. 理想的光电控制装置应能调制从最小到最大输出的有功功率,以一定的容量吸收或发出无功功率来调节所联接的母线电压。
- The decrease of the drain-source voltage or bus voltage affects the entire spectrum evenly according to Fourier theory. It means that the spectrum will decrease with the drain-source voltage. 降低漏源极直流母线电压影响干扰信号按傅立叶展开式的全部频带。这意味着干扰频谱幅值随漏源极电压的降低而降低。
- The SPIC maintenances high power factor and decreases the bus voltage in about 200V. The key of the idea is that the pulse-width of the drive-pulse of the APFC switching is decreased. 该方法通过利用对原SPIC中的脉冲进行适当处理,以获得固定占空比较小的脉冲来控制APFC的开关,从而起到了有效降低总线电压,维持较高的功率因数。