Characterization of a thyristor controlled reactor (original) (raw)
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IJERT-Simulation Model of Thyristor Controlled Reactor
International Journal of Engineering Research and Technology (IJERT), 2014
https://www.ijert.org/simulation-model-of-thyristor-controlled-reactor https://www.ijert.org/research/simulation-model-of-thyristor-controlled-reactor-IJERTV3IS041805.pdf Controlled power is a fundamental prerequisite of various sectors. This paper discuss one of the FACT device i.e. Thyristor Controlled Reactor which is used to compensate the reactive power and controls the voltage profile of the power transmission line. Firing control scheme for triggering Thyristor is performed in MATLAB SIMULINK software. This paper deals with the Simulink model of TCR and results ofThyristor controlledreactor (TCR) system. Generation of harmonics in TCRsystem, operation of TCR under different conditionsare also discussed.
IJERT-Analysis and Minimization of Harmonics of Thyristor Controlled Reactor (TCR)
International Journal of Engineering Research and Technology (IJERT), 2015
https://www.ijert.org/analysis-and-minimization-of-harmonics-of-thyristor-controlled-reactor-tcr https://www.ijert.org/research/analysis-and-minimization-of-harmonics-of-thyristor-controlled-reactor-tcr-IJERTV4IS100430.pdf This paper proposes a firing angle range control and minimization of harmonics in thyristor controlled reactor (TCR). A typical Static Var Compensator generally consists of a Thyristor Controlled Reactor (TCR) & a Thyristor Switched Capacitor (TSC) which compensates loads through generation or absorption of reactive power. The operation of Thyristor Controlled Reactors at appropriate conduction angles can be used advantageously to meet the phase-wise unbalance and varying load reactive power demand in a system. However, such an operation deteriorates the quality of power supply through percolation of harmonic currents into the mains. This paper presents an approach to minimize harmonic generation internally by different combinations of Delta connected TCR by using MATLAB SIMULATION. In particular harmonics will be investigated and range of firing angle fixed for satisfactory operation.
Simulation Aspects of Thyristor Controlled Series Compensator in Power System
IOSR Journal of Engineering, 2013
The Thyristor controlled series compensator (TCSC) is one of the important members of FACTS family that is increasingly applied with long transmission lines by the utilities in modern power systems. It can have various roles in the operation and control of power systems, such as scheduling power flow; decreasing unsymmetrical components; reducing net loss; providing voltage support; limiting short-circuit currents; mitigating sub synchronous resonance; damping the power oscillation and enhancing transient stability control of power systems, systems and procedures are used to compensate dynamically the detrimental effect of nonlinear loads. The compensation process should be carried out without important alteration of the signal quality along with some benefits like reduction of losses in distribution lines, harmonic content minimization and power factor improvement. The dynamic behavior of industrial load requires the use of that compensator which can be adapted to the load changes. Thyristor Controlled Series Capacitor (TCSC) is an important FACTS device which has been used in power system transmission networks; these few aspects of the TCSC operation which we are simulating in ORCAD and MATLAB (i) To calculate the various resonance points in the impedance characteristics of the TCSC w.r.t. various firing angle. (ii) Contribution of the TCSC to power system operation and control system and study by implementing the TCSC in small power model of power system using ORCAD and MATLAB.
Abstract- This paper presents how the FACTS controller TCSC increases the capacity of transmission lines. The use of FACTS controllers provides effective solution for these problems. With relatively low cost, the FACTS controllers help industries to better utilize the available transmission and generation reserves. TCSC is member of FACTS family of devices which is a variable capacitive reactance and inductive reactance used for series compensation in transmission line. One of the significant advantages of TCSC over other series compensation facts controller is TCSC reactance is instantaneous and continuously variable. In this paper analyse the real and reactive power flow through transmission line with and without TCSC controller. For different firing angle active and reactive power measured. As per TCSC characteristics at α=90⁰ to 130⁰ power flow decreases and for α=140⁰ to 180⁰ power flow increases. The simulation carried out in MATLAB/Simulink
Modelling and Analysis of Thyristor Controlled Series Capacitor using Matlab/Simulink
The need for more efficient electricity systems management has given rise to innovative Technologies in power generation and transmission. Flexible AC Transmission Systems (FACTS) is one of such technologies that respond to these needs. It significantly alters the way transmission systems are developed and controlled together with improvement in asset utilization, system flexibility and system performance.
The objective of this paper is to develop a Model for the reactive power compensation of the unbalanced load by using FACTs device FC-TCR. TCR are widely used in industry, however the control of unbalanced and non-linear system using TCR control scheme doesn't give good performance at all operating points. Here, a model based predictive controller with model is designed and implemented for the Reactive power compensation of unbalanced load. In this paper reactive power and power factor are determined before and after compensation. The control of the FC-TCR is also provided in this paper. The FC-TCR Controller is used and simulated using MATLAB. In this paper simulation results are represented. As per variation of the firing angle of the FC-TCR the Compensation is obtained. The main objective of this paper will be to maintain currents balanced and unity factor with their voltages.
Comparative analysis of single phase TCR, TSC and TSR static var compensators
This paper gives a study of behavioral comparison the operation of a thyristor controlled reactor (TCR) which consists of an inductance and a bi-directional thyristor switch connected in parallel, thyristor switched capacitor (TSC),which consist of a capacitance in series with a two bidirectional capacitors, the thyristor switched reactor inductor (TSRL) which consist of only an inductor in the SVC. Firing angle control of the TCR switches regulates the time for which the inductance is included in the circuit. a firing angle of between 90 degrees to 180 degrees was observed for the TCR and a continuous firing signal for the TSC by using a step generator, then voltage regulation was observed when the a combination of TCR and TSC compensator called hybrid reactive power controlling model to prevent occurrence of voltage amplification as a result of the receiving end voltage becoming twice of the sending end voltage
Individual Channel Analysis of the Thyristor-Controlled Series Compensator Performance
International Journal of Emerging Electric Power Systems, 2000
The TCSC is the electronically-controlled counterpart of the conventional series bank of capacitors. A mature member of the FACTS technology, the TCSC has the ability to regulate power flows along the compensated line and to rapidly modulate its effective impedance. In this paper its performance is evaluated using Individual Channel Analysis and Design. Fundamental analysis is carried out to explain the generator dynamic behavior as affected by the TCSC. Moreover, a control system design for the system is presented, with particular emphasis in the closed-loop performance and stability and structural robustness assessment. It is formally shown that the incorporation of a TCSC operating in its capacitive range improves the dynamical performance of the synchronous machine by decreasing the electrical distance and therefore considerably reducing the awkward switchback characteristic exhibited by synchronous generators. It is also formally proven in the paper that the inductive operation...
IRJET- APPLICATION OF THYRISTOR CONTROLLED SERIES COMPENSATOR IN POWER SYSTEMS
IRJET, 2020
Today's transmission system is becoming increasingly complex and very difficult in every aspect and is expected to carry large or heavy power in ways it was never designed for or used. The expectation is that transmission requirements will only increase, as power generation sources are continuously evolving. Series Compensation System allows utilities to cost effectively increase the power transfer capabilities of their existing infrastructure and new transmission lines. Series compensation systems are installed in series with High Voltage transmission lines, and consist of an integrated, complex custom-designed system with many power capacitors placed in series and parallel. The most critical equipment is the parallel protective system which prevents damage to the capacitors during power circuit or system faults. In series compensation we will add a capacitor in series with the transmission line as a compensator. When the compensator is placed at the mid point of the transmission line then there is minimum distortion in the Waveshapes and hence the system is more stable. Further TCSC, a FACTS device is added in the transmission line which will increase the power transmission, makes the system more stable and more controllable. TCSC model of transmission line will be observed for different parameters of TCSC. Henceforth different Waveshapes of power, voltages and current will be obtained and power is seen to be more or less for different values of TCSC and transmission line parameters.