电压稳定度
- 网络voltage stability;Voltage regulation
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基于支路电压稳定度的电力系统无功补偿点选择
Voltage stability margin indexes based reactive power compensation node selection for power system
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实验表明,该电路软启动效果明显,能抑制电压波动冲击,输出电压稳定度优于0.8%,为提高该类传感器测量精度提供了有效的手段。
The experiments show that the soft driving effectiveness of the circuit is obvious . It can inhibit the shock of voltage fluctuation and output voltage stability is better than 0.8 % , thus provides an effective means for improving the measuring accuracy of this kind of sensors .
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基于电路理论分析电压稳定裕度指标
The Analysis of Abundance Index of Voltage Stability Based Circuit Theory
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线性模拟法求解电力系统静态电压稳定裕度
An algorithm of linear simulation to calculate static voltage stability limit
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含风电场电力系统电压稳定裕度模型我国风能资源
Voltage stability margin model for power systems containing wind energy resources
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含静态电压稳定裕度约束的无功优化
Reactive Power Optimization with Constraints of Static Voltage Stability Margin
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基于交流电路运行特性的电压稳定裕度指标
Voltage Stability Margin Index Base on Operating Characteristics of Alternating Current Circuit
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提出了一种可在线应用的静态电压稳定裕度计算方法。
A method for on-line static voltage stability margin calculation is presented .
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节点注入功率模式对电压稳定裕度的影响
Effect of Nodal Injection Power Mode on Voltage Stability Margin
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电压稳定裕度指标分析方法综述
A summary of the state of the art of voltage stability margin indices
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一种求取静态电压稳定裕度的新方法
A new method for calculating stationary voltage stability margin
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基于相量测量的电压稳定裕度在线评估
Online Voltage Stability Margin Evaluation Based on Phasor Measurement
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考虑静态电压稳定裕度的多目标电压&无功规划
Multi-objective Voltage-VAR Planning with Static Voltage Stability Margin
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基于免疫算法的电压稳定裕度计算
Voltage Stability Margin Calculation Based on Immune Algorithm
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对现有的电压稳定裕度指标分析方法进行了总结和评述。
The state of the art of voltage stability margin indices is summarized and evaluated .
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电压稳定裕度对参数灵敏度求解的新方法
A New Method to Compute the Sensitivity of Loading Margin to Voltage Collapse with Respect to Parameters
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潮流雅可比矩阵最小奇异值可用来评估系统电压稳定裕度。
The minimum singular value of the power flow Jacobin matrix can be used to evaluate the voltage stability margin .
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讨论了最小奇异值表示的电压稳定裕度指标和物理量表示的电压稳定裕度指标间的关系;
The relation between the voltage margin index expressed by minimum singular value and the voltage margin expressed by physical quantity is dis-cussed .
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并在正态分布的假设下,计算了多运行方式下最小电压稳定裕度的分布范围。
The minimum voltage stability margin of the system in multiple operating conditions is computed accordingly , and the corresponding margin distribution with a normal probability is finally calculated .
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用电路理论定义电压稳定裕度指标并提出简单、速、确地从正常运行电网中搜寻电压弱支路的方法。
This paper defines the abundance index of voltage stability by circuit theory and suggests a method to search weak circuit branches from operating power grids simply , quickly and correctly .
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连续潮流法能较好克服潮流方程在极限点附近的病态,是求取静态电压稳定裕度的常用方法。
The continuous power flow method can readily overcome the abnormality of the power flow equation in neighborhood of limits and is frequently used for determining the static voltage stability margins .
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论证了在无功规划阶段应该计及静态电压稳定裕度,并建立了基于静态电压稳定裕度的无功规划模型。
So , it is important to consider voltage stability margin in VAR planning . The optimized mathematical model of VAR planning based on static stability margin is established in this paper .
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对以电容器作为储能单元的脉冲功率系统来说,电容器充电电源的性能决定了输出电压的稳定度和重复频率。
For pulsed power systems utilizing capacitors as the energy storage unit , the performance of capacitor charging power supplies ( CCPS ) determines the stability and repeatability of the output voltage .
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本文采用连续潮流算法计算静态电压稳定裕度,为克服其计算时间长的缺点,设计了自适应变步长的方法,既保证了计算的精度,又节省了计算时间。
Continuation power flow ( CPF ) is adopted to calculate the voltage stability margin , and auto-step approach of CPF is designed in this paper , the speed of CPF is accelerated .
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通过对IEEE30节点系统计算并与其他算法比较,结果表明采用该优化规划的算法能有效地降低网损、提高系统电压稳定裕度。
This algorithm is used in IEEE-30 buses system and the result indicates that the optimization algorithm not only can decrease the power loss but also can improve the system voltage stability margin .
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通过IEEE14节点修正算例,验证了模型和算法的有效性,并通过仿真计算研究了发电机调节能力与电压稳定裕度指标对模型最优解的影响。
Based on modified IEEE-14 systems , the simulation results prove that proposed model and algorithm are effective and the effect of adjustment limits of generators and voltage stability indictors are also discussed .
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本文报道了使用探头局部恒温的霍尔测磁仪,测量广量程磁谱仪的磁场分布,其输出的霍尔电压长期稳定度好于0.03%。
The measurement of magnetic field distribution of the wide range magnetic spectrometer is carried out by a magnetometer with a temperature stabilized Hall element which has a long time stability of 0.03 % .
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该方法不仅可以定量地给出系统的静态电压稳定裕度,而且能够直接计算稳定裕度对系统状态变量和控制变量的灵敏度。
This method not only can be used to calculate the steady-state voltage stability margin , but also can be employed to compute the sensitivity of the stability margin to system state variables and controlled variables directly .
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在无功优化中,应用矩阵奇异值分解理论,引入了静态电压稳定裕度最大化目标和并行遗传算法思想,提出了用于无功优化的伪并行遗传算法。
To avoid premature of conclusion simple genetic algorithm and to accelerate the calculation , the thinking of parallel genetic algorithm is applied to reactive power optimization and the decomposition theory of singular values of matrixes is used .
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该系统已在河南电网投入使用,可帮助调度人员在线监视与评估不同运行工况和不同负荷增长方式下的电网电压稳定裕度。
This visual system is applied in Henan provincial power network and can help the dispatchers on-line monitoring and evaluating of the voltage stability margins of Henan power network under different operating conditions and different load increasing modes .