Physical and eventbased modeling physical modeling simscape electrical specialized power systems power electronics tags add tags facts indraneel saki indranil saaki interline power f. In this paper, an interline power flow controller ipfc is used for controlling multi transmission lines. The interline power flow controller ipfc is a series connected voltage source converter vsc based flexible ac transmission system facts controller for management of power flow among the multiline transmission system of a substation. Optimal power flow with interline power flow controller using harmony search algorithm 3 b. Unified means that dc terminal of controller converters are connected together for real power exchange the objective of introducing this controller is to address the problem of compensating a number of transmission lines. Among the facts components, unified power flow controller upfc and interline power flow controller ipfc are the most advanced in facts controllers 4. Hs mic college of technology, kanchikacherla, ap, india.
Each inverter can provide a series reactive compensation, as an sssc, for its own line. International journal on recent technologies in mechanical. Pdf simulation and state estimation of power system with. Analysis on control solution of interline power flow. Unlike other facts devices that aim to control the parameter of a single transmission line, the ipfc is conceived for the. With the flexible ac transmission systems facts technique, the power flow in the interconnected power systems can be controlled flexibly. Dynamic performance of the interline unified power flow. Magnetic amplifierbased power flow control technology.
The distributed interline power flow controller dipfc consists of the two or more series converters in different transmission lines that are interconnected via a common dc link, as shown in figure 7. Mathematical models of the sssc and the ipfc and their implementation in newton power flow are reported. The ipfc is the multifunction device, such as power flow control, voltage control, oscillation damping. Single objective optimization using pso with interline.
Unified power flow controller upfc upfc is a combination of statcom and sssc coupled via a common dc voltage link. Interline power flow controller ipfc is the latest generation of facts controllers 12. This paper investigates the damping control function of an interline power ow controller installed in a power system. International journal of mechatronics, electrical and. Through the analysis of the structure of ipfc, this paper demonstrates that fuzzy control method is an advanced and reasonable control method, which can be independently control bus voltage and. Ipfc based power injection model is incorporated in the state estimation algorithm. Study of power system performance with interline power. Unified pow er flow controller, ip fc interline power flow controller. Robust interline power flow controller with wind power. A unified power flow controller is an electrical device for providing fastacting reactive power compensation on highvoltage electricity transmission networks. Simulation of distributed interline power flow controller. In its general form, the ipfc employs a number of inverters with a common dc link, each to provide series compensation for a. The minimum number of converters connected backtoback is two.
Single line diagram of an interline power flow controller with two series vscs and one parallel vsc. Controller will automatically adjust the display and output signal. Control of active and reactive power flow in multiple. Power oscillation, interline power flow controller, wind energy, lsdp, robust control. Power flow management through interline power flow. Power system stability enhancement using interline power. Interline power flow controller ipfc is one of the versatile facts device. International journal of mechatronics, electrical and computer technology vol.
With this scheme, ipfc has the capability to provide an independently controllable reactive series compensation for each individual line. When operating below its rated capacity, the ipfc is in regulation mode, allowing of the p and q flows on one line, and the p flow on. Tech power system school of engineering gautam buddha university, gr. For this purpose, a single machinein nite bus model, integrated with ipfc, is used and the linearized. Contentsfacts devicesbenefits of facts devicestypes of facts devicesintroduction to upfccircuit descriptioncontrol schemesconclusion 3. It is the combination of two or more ssscs which are coupled via a common dc link. State estimation of power system with interline power flow. The facts flexible ac transmission systems is a concept based on powerelectronic controllers, which enhance the value of transmission networks by increasing the use of their. Usually the main purpose of facts transmission system limits.
Numerical results based on the ieee 30bus are presented to demonstrate the performance of the newton power flow. The concept of interline dynamic voltage restorer idvr where two or more voltage restorers are connected such that they share a common dclink is similar to the in terline power flow controller ipfc concept. Analyzing the effect of different types of interline power. The e ect of an interline power flow controller ipfc on damping low frequency oscillations has been implied in some papers, but has not been investigated in detail. Modeling of ipfc for power flow control in 3phase line. Project objectives 4 simple, reliable, and efficient power flow control device that is costeffective for systemwide. This paper is concerned about the state estimation of system, which contain flexible ac transmission system. Facts technology improves the power system stability by providing the necessary. Distributed power flow controller and distributed interline power flow controller where used for power quality improvement. Enhancement of power quality and mitigation of harmonics.
Power flow control using interline power flow controller. These are able to control independently the throughput active and reactive powers. An interline power flow controller ipfc is a converter based controller which compensates and balance the power flow among multilines within the same corridor of the multiline subsystem. An interline power flow controller ipfc, shown in fig.
A common dc link within the ipfc is able to facilitate real power transfer among the lines of the transmission system. Interline power flow controller ipfc is one of the versatile facts device which is considered for state estimation. The ipfc interline power flow controller and upfc unified power flow control among the facts devices aimed to the power flow control. The interline power flow controller ipfc concept proposed in this paper addresses the problem of compensating a number of transmission lines at a given substation. Based on the conventional power system state estimation model, a new method is proposed wherein an ipfc based power injection model is incorporated in the state estimation algorithm. Ramana4 1department of electrical and electronics engineering, dvr and dr. Ipfc is one of the latest generation facts controllers to control power flow. There are various facts controllers and can be classified on the basis of their connection in the. Modeling generalized interline powerflow controller. In an ipfc, the exchanged real power can flow bidirectionally between ac lines which may be of different frequencies, thus making the ipfc an asynchronous tie. In its general form, the ipfc employs a number of dc to ac converters, each providing series compensation, similarly to that used in the upfc, for one of the lines of a multiline system. However, the inverters can transfer real power between them via their common dc terminal. Simulation of interline power flow controller in power. These models are more accurate than existing models and aid the power.
Interline power flow controller is the control device of facts flexible ac transmission systems which can adjust trend, enhance stability, improve power grid transmission, etc. The interline power flow controller ipfc is an extension of the upfc concept to the economic control and optimization of multiline power transmission systems. Digital simulation of an interline dynamic voltage. The interline power flow controller ipfc provides, in addition to the facility for independently controllable reactive series compensation of each individual line, a capability to directly transfer or exchange real power between the compensated lines. In this paper, direct modeling of the practical series orand shunt operating inequality constraints of the ipfc and the gupfc in power flow calculations are presented. The problem of reactive power compensation and flow of power through the lines can be addressed with the help of new generation facts controllers.
Prabhakar department of electrical and electronics engineering sri venkateswara college of engineering, sriperumbudur. Various power adapters are available for use with 12 vdc versions. It is a combination of series controllers or a unified controller. Power system stability enhancement using interline power flow controller r. In this paper, line idvr system is explained which employs two dvrs, connected to a common dclink, is connected to two. It uses a pair of threephase controllable bridges to produce current that is injected into a transmission line using a. Unified power flow controller upfc integrated power flow controller ipfc. Power units may be ordered for either 12 vdc or 24 vdc power. Optimal location of interline power flow controller for. Since the pid controller is linear and its performance in nonlinear system like hvac system is not satisfied. Robust interline power flow controller with wind power source using phaseplane uzzyf logic control 25 fig. The interline power flow controller ipfc and the generalized unified power flow controller gupfc are two innovative configurations of the convertible static compensator csc of facts.
The interline power flow controller ipfc combining at least two converters, can be configured. Pdf interline power flow controller ipfc steady state. Also each inverter can provide reactive power compensation independently. Better power flow control can boost the transfer capacity of transmission line up to 23 times of the uncontrolled case. The proposed fuzzy logic controller plays well due to its linguistic nature. Abstract the interline power flow controller ipfc proposed is a recent concept for the compensation and effective power flow management of multi line transmission systems. Distributed power flow controller is achieved the converters and by applying dfacts concept to three phase series converter in unified power flow controller. Dynamic performance of the interline unified power flow controller iupfc system using 48pulse gto thyristor international journal of innovative research in electronics and communications ijirec page 19 fig. Ipfc is developed with the objective of balancing real and reactive power flow among multilines and to transfer power from overloaded to under loaded lines. An interline power flow controller ipfc consists of a set of converters that are connected in series with different transmission lines. Generalized interline powerflow controller gipfc is one of the voltagesource controller vscbased flexible ac transmission system facts controllers that can independently regulate the powerflow over each transmission line of a multiline system. Use of an interline power flow controller model for power. The interline power flow controller ipfc 43 is a upfcderived device with the objective of controlling power flow between lines instead of one line as in the upfc.
Fuzzy logic controller based interline power flow controller 3653 link capacitor, make it complex 4. The e ect of an interline power flow controller ipfc on. Optimal power flow opf problem was solving from the decades with different objectives as the economy was growing. The schematic diagram of ipfc is illustrated in figure. Pdf use of an interline power flow controller model for. Power quality mainly depends on the compensation of reactive power and level of voltages. Use of an interline power flow controller model for power flow analysis. The proposed method is tested on anderson and fouad 9bus test system and the results are presented. Dual damping controller using interline power flow controller. In general, ipfc is used in multiple transmission lines of a power system network. Power system state estimation with interline power flow. In its general form the interline power flow controller employs a.
Based on the conventional power system state estimation model, a kind of model for state estimation with ipfc is introduced in this paper, in which power injection model is used and the affect of ipfc on the power flow is. Pdf power flow management through interline power flow. In this paper cost of generation, transmission losses and lindex are taken as three different objectives for optimal operation of. The unified power flow controller upfc concept was proposed by gyugyi in the late 1980s, the electric power research institute epri formulated the flexible ac transmission voltage and power flow and reduces dynamic disturbances.
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