A Matrix Method for Describing the Power Transmission of Electric Network

Traditional power flow calculation can only supply the information of the conventional electric parameters, such as node voltage, branch current, power, etc. The transmission of power which is injected into the network by each power source, including power supply paths, power belongs, relationship among the power injected into each nodes, cannot be given. To solve this problem, this paper using the theory of the physical distribution of power network’s energy, proposes a matrix method for describing the power transmission, expresses the value and supply paths of the power from each single source in power network with the analytic method.

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A New Method to Solve Static Voltage Collapse Point with Hybrid Power Network Equations

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.732-733.796 ◽

2013 ◽

Vol 732-733 ◽

pp. 796-799

Author(s):

Tao Yi ◽

Jian Peng Li ◽

Song Zhang ◽

Ying Bin Zhang

Keyword(s):

Power Flow ◽

Jacobian Matrix ◽

Voltage Collapse ◽

Power Network ◽

Analysis Model ◽

Power Flow Calculation ◽

Flow Equations ◽

Node Voltage ◽

Hybrid Equations ◽

Extended Power

Electric power network components can be simulated with equivalent circuit and establish the hybrid node voltage and branch current electricity network analysis model based on it. We form the equations reflected the voltage collapse conditions, and establish the extended power flow equations with the hybrid equations, the static voltage collapse point can be calculated by solving them. The advantage of this method is that the power flow calculation can be convergence smoothly near the collapse point because of the extended power flow equations when the Jacobian matrix tends to be singular. The convergence can be achievable just because the joining of the equation reflecting the voltage collapse conditions has changed the structure of the Jacobian matrix. The simulation results show that this method is very effective.

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Combined Gaussian Mixture Model and cumulants for probabilistic power flow calculation of integrated wind power network

Computers & Electrical Engineering ◽

10.1016/j.compeleceng.2019.01.010 ◽

2019 ◽

Vol 74 ◽

pp. 117-129 ◽

Cited By ~ 2

Author(s):

Lin Ye ◽

Yali Zhang ◽

Cihang Zhang ◽

Peng Lu ◽

Yongning Zhao ◽

...

Keyword(s):

Wind Power ◽

Gaussian Mixture Model ◽

Mixture Model ◽

Power Flow ◽

Gaussian Mixture ◽

Power Network ◽

Power Flow Calculation ◽

Flow Calculation ◽

Probabilistic Power Flow

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Static analysis of voltage stability with DFIG

Science and Technology Development Journal ◽

10.32508/stdj.v19i3.563 ◽

2016 ◽

Vol 19 (3) ◽

pp. 5-12

Author(s):

Binh Thi Thanh Phan ◽

Thao Thi Thu Huynh ◽

Au Ngoc Nguyen

Keyword(s):

Stability Analysis ◽

Modal Analysis ◽

Static Analysis ◽

Power Flow ◽

Voltage Stability ◽

Jacobian Matrix ◽

Wind Generation ◽

Power Network ◽

Power Flow Calculation ◽

Static Voltage Stability

The static voltage stability analysis is carried out by V-Q sensitivity or Q-V modal analysis. These analyses are based on the Jacobian matrix of power flow calculation. This is regarded as load bus stability analysis. With DFIG of PQ mode, the wind generation bus is considered as the PQ bus. Due to the limits of converters, these PQ buses became very special and this influences on the voltage stability examining. This paper also examines the penetration level and the location of wind generation injection based on voltage stability. The reliability of the algorithm is illustrated in a study of 14 buses power network.

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