Robust calculation method of voltage stability margin based on voltage‐collapse‐point properties

2021 ◽  
Author(s):  
Shota Omi ◽  
Yasuyuki Shirai
Keyword(s):  
Calculation Method ◽  
Voltage Stability ◽  
Stability Margin ◽  
Voltage Collapse ◽  
Voltage Stability Margin

scholarly journals Improvement the voltage stability margin of Iraqi power system using the optimal values of FACTS devices

2021 ◽  
Vol 11 (2) ◽  
pp. 984
Author(s):  
Ghassan Abdullah Salman ◽  
Hatim G. Abood ◽  
Mayyadah Sahib Ibrahim
Keyword(s):  
Power Systems ◽  
Power System ◽  
Voltage Stability ◽  
Stability Margin ◽  
Voltage Collapse ◽  
Voltage Profile ◽  
Heavy Load ◽  
Transmission Grid ◽  
Facts Devices ◽  
Voltage Stability Margin

The detection of potential voltage collapse in power systems is essential to maintain the voltage stability in heavy load demand. This paper proposes a method to detect weak buses in power systems using two stability indices: the voltage stability margin factor (dS/dY) and the voltage collapse prediction index (VCPI). Hence, the paper aims to improve the voltage stability of Iraqi transmission grid by allocating FACTS devices in the optimal locations and optimal sizes. Two types of FACTS are used in this paper which are Thyristor controlled series compensator (TCSC) and static var compensator (SVC). The objective function of the problem is fitted using particle swarm optimization (PSO). The proposed method is verified using simulation test on Diyala-132 kV network which is a part of the Iraqi power system. The results observed that improvement the voltage stability margin, the voltage profile of Diyala-132 kV is increased and the power losses is decreased.

Stochastic Estimation and Enhancement of Voltage Stability Margin considering Load and Wind Power Intermittencies

2021 ◽  
Author(s):  
Saurabh Ratra ◽  
Derminder Singh ◽  
R.C. Bansal ◽  
Raj M. Naidoo
Keyword(s):  
Wind Power ◽  
Voltage Stability ◽  
Stability Margin ◽  
Stochastic Estimation ◽  
Voltage Stability Margin

Transient Voltage Stability Margin Prediction Method Based on LightGBM

2021 ◽  
Author(s):  
Zhang Jie ◽  
Hu Binjiang ◽  
Guo Qi ◽  
Zhu Yihua ◽  
Sun Zhiyuan ◽  
...  
Keyword(s):  
Voltage Stability ◽  
Prediction Method ◽  
Stability Margin ◽  
Voltage Stability Margin ◽  
Transient Voltage Stability ◽  
Transient Voltage

scholarly journals Static voltage stability margin calculation of power systems with high wind power penetration based on the interval optimisation method

2020 ◽  
Vol 14 (10) ◽  
pp. 1728-1737 ◽  
Author(s):  
Shunjiang Lin ◽  
Yuerong Yang ◽  
Mingbo Liu ◽  
Yuquan Xie ◽  
Yuan Lu
Keyword(s):  
Power Systems ◽  
Wind Power ◽  
Voltage Stability ◽  
Stability Margin ◽  
High Wind ◽  
Static Voltage Stability ◽  
Voltage Stability Margin
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