Preventing voltage instability is an important aspect of safety and stability in power system.
防止电压失稳是电力系统安全稳定运行的一个重要方面。
Under this environment, voltage instability may result when reactive power support is insufficient.
在这一环境下，如果无功功率支持不足，就可能出现电压失稳。
A new calculation method for describing voltage instability coefficient based on model participation factors is proposed in this paper.
基于模式参与因子，提出一种新的电压失稳系数计算方法。
The high voltage direct current (HVDC) system connected with weak AC system is considered to be one of the causes for voltage instability.
与弱交流系统相连的高压直流系统被认为是引起电压不稳定的一个因素，评价交直流系统电压稳定性的方法相当复杂。
The voltage stability degree of a power system can be represented by that of the power transmission path, which is most prone to voltage instability.
电压失稳本质上是一种局部现象，系统的电压稳定程度可以由最易于电压失稳的功率传输路径的电压稳定性来表征。
Therefore, this paper proposes a method to calculate the probability of voltage instability based on the stochastic characteristic of load margin index.
针对这种情况，提出了一种基于负荷裕度随机特性的方法来计算系统电压失稳的概率。
The calculation results can be taken as the judging basis for the abundance of motor critical instability and critical voltage instability in power system.
所获结果可作为判断电力系统中异步电动机临界失步和临界电压失稳裕度的依据。
A large number of blackouts are influenced by voltage instability directly or indirectly in the world, so voltage instability is given more and more attention.
在世界范围内，直接或间接地由电压稳定造成的停电事故很多，电压稳定问题得到了日益的关注。
Special attention: As the machine to a high-voltage requirements, then the power can only be one-way, it may not be applicable to the local of voltage instability.
特别注意：由于本机对电压的稳定要求极高，只能单线接电源，对电压不稳定的地区可能不太适用。
Considering the sensitivity of virtual nodal voltage to line reactance and variation of reactive power of power grid comprehensively, the voltage instability index is put forward.
综合考虑节点电压关于线路电抗和系统无功功率变化的灵敏度，提出了电压失稳指标。
The study of voltage stability about multi-infeed DC transmission systems is a new research field, so that voltage instability may probably threaten the security and stability of power grid.
多直流馈入输电系统的出现给电压稳定研究带来了全新的课题，电压失稳有可能成为这类电网安全稳定运行的最大威胁。
Load shedding is usually conducted during emergency periods, such as capacity shortages, system instability, or voltage control.
切负荷通常在紧急时期进行，如在容量不足、系统不稳定或电压控制时。
From the simulation data, we can clearly observe the instability of substrate voltage, caused by substrate resistor, will cause some trouble in both analog and digital circuit.
从仿真的数据结果，我们可以清楚地认识到衬底寄生电阻所带来的衬底电压的不稳无论在数字电路还是模拟电路中都会产生一定的影响。
Since 1970s, the nonlinear, the instability and theunbalance of the voltage have become more and more serious due to the electronic device and other nonlinear load in power network.
自二十世纪七十年代以来，由于电力电子器件及其它非线性负荷在电网中大量的投入使用，使电网的非线性、不稳定性和不对称性日趋严重。
Since 1970s, the nonlinear, the instability and theunbalance of the voltage have become more and more serious due to the electronic device and other nonlinear load in power network.
自二十世纪七十年代以来，由于电力电子器件及其它非线性负荷在电网中大量的投入使用，使电网的非线性、不稳定性和不对称性日趋严重。
应用推荐