Several papers can be found on development of UPFC steady state and dynamic models [5] – [8]. Computer simulation and experimental implementation of a UPFC using DS data acquisition board have been used to verify the proposed control strategies. This is done viaConventional PSS which gives additional controllers to the excitation system [6]. Currently, he has worked at the Sadjad Institute for Higher Education. Investigation of advanced control for the unified power flow controller UPFC.

The impact of a change in the system short circuit level on the UPFC operation and the size of the feasible area has also been investigated. ParameterTRrepresents the terminal voltage transducer time constant. Search the history of over billion web pages on the Internet. It is compulsory to analyze its effect of UPFC on power system network when the fault occurs in the power system and therefore whole system goes to severe transients. RePEc uses bibliographic data supplied by the respective publishers. Figure 4, shows the proposed model for the UPFC.

upfc modelling thesis

Active power losses MW. The overall aim is to provide effective tools for optimising the impact of the UPFC in the reinforcement of a transmission system.

Investigation of advanced control for the unified power flow controller (UPFC)

For modellling fundamental frequency model, the VSCs are replacedby two controlled voltage sources[5]. Converter 1 can also generate or absorb reactive power, if it is desired, and thereby provide independent shunt reactive compensation for the line.

upfc modelling thesis

The inputs to the excitationsystem are the terminal voltage VT and reference voltage VR [7]. To do this, focus on those elements of the machine that store energy in electromagnetic or kinetic form and look at the time evolution of energy stored in those elements.


Load flow studies with UPFC power injection model – ethesis

The UPFC unified power flow controller is one of the modern power electronics devices that can be used for the control of real and reactive power in a transmission line. Currently, he has worked at the Khavaran Nasr Company. Test results using different power system models are presented throughout the thesis to illustrate the effectiveness upc Unified Power Flow Controller.

upfc modelling thesis

Enter the email address you signed up with and we’ll email you a reset link. The gain and time constants of theexcitation system are represented by KA and TA, respectively.

The output membership function also consists of triangular membership function and rules described in Fig.

Currently, she is an assistant professor midelling Sadjad Institute for Higher Education. Full text for ScienceDirect subscribers only As the access to this document is restricted, you may want to search for a different version of it. Mastery of the electric power system can be realized by planning the FACTS control,where the new fashions as Artificial Intelligence can be functional to this case to boost theCharacteristics of controller presentation.

PDF PhD thesis farrag. The synchronous generator is represented by model 1, i. The second is a simple RBFNN controller which is constructed from a single neuron and trained on-line modellihg a gradient descent algorithm. The non-linear equations of machine are given by [4]. Present the block diagram of proposed Fuzzy logic controller.

Load flow studies with UPFC power injection model

Reactive power is injected in sending bus order to achieve the specified voltage magnitude. Her research interest is in power system stability and control. Saber Izadpanah Tous was born in Ipfc, Iran, in Investigation of thdsis control for the unified power flow controller UPFC. Converter 2 provides the basic function of the UPFC by injecting a voltage with controllable amplitude and phase angle in series with the line via a voltage source [3], [4].


Modrlling component is explained as follows: Power Systems, October The Power System Stabilizer implemented consists, as shownin Figure 3, of three main functional blocks: For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Three modern controllers have been designed and tested for controlling the UPFC in a power flow mode for the series part and a voltage control mode for the shunt part. The UPFC parameters in order to increase voltage level and decrease power losses are adjusted.

The work presented in this thesis is concentrated on the modelling and control of the UPFC. Several papers can be found on development of UPFC steady state and dynamic models [5] – [8].

Recent past has witnessed the advancements of Power System Stabilizers PSS and their variants for enhancing the stability of power system. Izadpanah Tous, and M. The paper ends with a summary conclusion in the final section 2.