A performance-index guided continuation method for fast computation of saddle-node bifurcation in power systems

Chen, Ke; Hussein, Anwar; Bradley, Michael P.; Wan, Haibin

doi:10.1109/tpwrs.2003.811203

Cited by 24 publications

(13 citation statements)

References 31 publications

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“…Principles of the continuation with ANM. methods exist and have been used to compute the Q-limit points along the solution path, e.g., sensitivity method with Newton corrections [19], Q-limit performance index guided continuation [20], etc. Next, we present a simple method to locate the Q-limit points with ANM.…”

Section: Q-limit Points Considerationmentioning

confidence: 99%

Asymptotic numerical method for continuation power flow

Yang

Zhou

et al. 2012

International Journal of Electrical Power & Energy Systems

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Section: Q-limit Points Considerationmentioning

confidence: 99%

Asymptotic numerical method for continuation power flow

Yang

Zhou

et al. 2012

International Journal of Electrical Power & Energy Systems

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“…Voltage collapse is generally caused by either load variations or system failures [14]. Lack of adequate reactive power resources in a power system has been recognized as a major contributing factor in such a voltage collapse process [15], which can be equivalently regarded as due to increases in load demand. Voltage collapse is dynamic and normally large disturbance phenomena [1].…”

Section: A．pqv Characteristics At Load Busmentioning

confidence: 99%

“…In [2], [15]- [21], various methods such as weak buses identification, weak lines identification and stability margin detection have been proposed to detect voltage collapse. The voltage collapse proximity indicator (VCPI) method for each load bus is applied to identify the weak buses of the system in [2].…”

Section: A．pqv Characteristics At Load Busmentioning

confidence: 99%

“…Literature [16] presents a test function based on a reduction of the load flow Jacobian matrix J. Literature [15] proposes a performanceindex guided continuation method for computing saddle-node bifurcation in power systems considering the limits of reactive power resources. Different with other literatures, [21] uses only local data, successive voltage and current phasors in the system, to assess vulnerability of a power system in terms of voltage stability.…”

Section: A．pqv Characteristics At Load Busmentioning

confidence: 99%

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Power system reliability based on voltage weakest bus identification

Qin

Zhang

Wang

et al. 2011

2011 IEEE Power and Energy Society General Meeting

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The weakest bus in a network is the first point where voltage collapses in a severe contingency. The weakest bus may change with system configurations and operating conditions. This paper proposes a technique to evaluate the weakest bus and system reliability based on system voltage stability under various system contingencies and operation conditions. A power system is divided into safety, margin, risk, and collapse zones according to the practical voltage limitations and voltage collapse point. The three voltage collapse indicators of Minimum Voltage Index (MVI), voltage change index (VCI) and voltage collapse proximity indicator (VCPI) are adopted for determining the voltage distance to the collapse point and weakest bus identification. The IEEE 30-bus system has been modified and analyzed to illustrate the proposed technique. The results provide system planners and operators very important information for the weakest points at different contingencies.Index Terms-Weakest bus, power system reliability, voltage collapse

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“…The continuation power flow (CPF) method is a competent tool for static voltage stability analysis, which has been widely studied since it was developed in [20]. Subsequent studies have been conducted to improve the CPF method, which are summarized here as the continuous parameter selection [21], parameterization method [22] and step size control [23] et al However, the above CPF methods are primarily applied in transmission networks. Therefore, several literatures have introduced the conventional CPF method into the distribution networks.…”

Section: Introductionmentioning

confidence: 99%

Reactive power operability of distributed energy resources for voltage stability of distribution networks

Xiang

Zhang

et al. 2019

J. Mod. Power Syst. Clean Energy

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The penetration level of distributed energy resources (DERs) is increasing and has significant impact on the voltage stability of distribution networks. Based on the various types of DERs with distinct reactive power characteristics (RPC), their different contributions to the system voltage stability require classification. Firstly, the features of DERs are reviewed and classified based on their RPC, to investigate different distributed generation technologies for reactive power support in distribution networks. Then, the concept of a relative available transmission capacity index (RATCI), which is based on power transfer margin of the power-voltage curve considering the non-negligible distribution network resistance, is proposed to quantify and evaluate the voltage stability by integrating DERs with the defined reactive power types. Case studies have been conducted for an IEEE 33-bus distribution network to calculate the system RATCI for the mixed integration of DERs. Results show that the multitype and multi-locational integration of DERs can improve the voltage stability of a distribution network.

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A performance-index guided continuation method for fast computation of saddle-node bifurcation in power systems

Cited by 24 publications

References 31 publications

Asymptotic numerical method for continuation power flow

Asymptotic numerical method for continuation power flow

Power system reliability based on voltage weakest bus identification

Reactive power operability of distributed energy resources for voltage stability of distribution networks

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