Implementation of faults in a microgrid environment with MATLAB based GUI

Hatipoglu, Kenan; Cakir, Gokhan; Fidan, Ismail

doi:10.1109/secon.2013.6567372

Cited by 3 publications

(5 citation statements)

References 2 publications

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“…Then, the dynamic case is initialized with the initial values and is run for the simulation time. The three phase short circuit fault is included by changing the corresponding values of the system [7].…”

Section: Simulation and Resultsmentioning

confidence: 99%

MATLAB based GUI to investigate effect of voltage changes on static ZIP load model in a microgrid

Hatipoglu

Fidan

2014

Ieee Southeastcon 2014

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A microgrid system under three phase fault is investigated with MATLAB based Graphical User Interface (GUI) for studying the effects of voltage changes on load buses having static polynomial (ZIP) loads. Load modeling is always a critical aspect on approaching power system rationally. Examining the behavior of the ZIP load model under a faulty condition is the main objective of this paper. Static characteristics of common load models can be grouped into three categories based on their dependency on voltage. Quadratic relation between power and voltage exists for constant impedance load model (Z).Linear power-voltage relation is true for constant current load model (I). Power is independent of voltage changes for constant power load model (P). The sum of these three categories is a polynomial model known as ZIP load. Voltage and power variations of ZIP load will be investigated with designed user-friendly MATLAB based GUI and overall changes will be discussed.

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Section: Simulation and Resultsmentioning

confidence: 99%

MATLAB based GUI to investigate effect of voltage changes on static ZIP load model in a microgrid

Hatipoglu

Fidan

2014

Ieee Southeastcon 2014

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“…As the prime-mover and the generator are mechanically coupled, the dynamics of the SG are not electrically decoupled from the dynamics of the generator. The governor helps the prime mover to regulate the frequency and the exciter helps the generator to sustain the voltage output [29]. it does not necessitate expensive PE devices such as voltage source inverters (VSIs).…”

Section: Sg-based Der Modelmentioning

confidence: 99%

“…The limit constraints on the pilot exciter of machine i, output voltage V Ri , and turbine governor dynamics affecting the mechanical torque T Mi applied at the shaft are neglected. The next subsection covers the m machine, n bus system with the IEEE-Type I exciter differential and algebraic equations as illustrated in Figure 8 [29]. it does not necessitate expensive PE devices such as voltage source inverters (VSIs).…”

Section: Differential Equationsmentioning

confidence: 99%

“…K Ai , T Ai are the amplifier gain and time constant, respectively. S Ei E f di is the value of the saturation function at E f di , which is ignored in this study [29].…”

Section: Differential Equationsmentioning

confidence: 99%

“…21) where V i , θ i are the voltage magnitude and angle at bus i. P Li , Q Li are the real and reactive components of loads at bus i. Y ik , α ik are the magnitude and angle of the admittance (Y bus ) matrix element at the ith row and jth column. R si is the stator resistance of machine i[29].…”

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confidence: 99%

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Model-Free Dynamic Voltage Control of Distributed Energy Resource (DER)-Based Microgrids

2020

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In this paper, we present a new control technique for sustaining dynamic voltage stability by effective reactive power control and coordination of distributed energy resources (DERs) in microgrids. The proposed control technique is based on model-free control (MFC), which has shown successful operation and improved performance in different domains and applications. This paper presents its first use in the voltage stability of a microgrid setting employing multiple synchronous generator (SG)-based and power electronic (PE)-based DERs. MFC is a computationally efficient, data-driven control technique that does not require modelling of the different components and disturbances in the power system. It is utilized as an online controller to achieve the dynamic voltage stability of a microgrid system under different disturbances and fault conditions. A 21-bus microgrid system fed by multiple DERs is considered as a case study and the overall dynamic voltage stability is investigated using time-domain dynamic simulations. Numerical results show that the proposed MFC provides improvements on the dynamic load bus voltage profiles and requires less computational time as compared to the traditional enhanced microgrid voltage stabilizer (EMGVS) scheme. Due to its simplicity and low computational requirement, MFC can be easily implemented in resource-constrained computing devices such as smart inverters.

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Palu

2016

2016 Electric Power Quality and Supply Reliability (PQ)

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Implementation of faults in a microgrid environment with MATLAB based GUI

Cited by 3 publications

References 2 publications

MATLAB based GUI to investigate effect of voltage changes on static ZIP load model in a microgrid

MATLAB based GUI to investigate effect of voltage changes on static ZIP load model in a microgrid

Model-Free Dynamic Voltage Control of Distributed Energy Resource (DER)-Based Microgrids

A user interface tool for ramping behavior analysis of renewable energy

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