The complete digital simulation of the statcom within the power system is performed in the matlab simulink environment using the power system blockset psb. Pdf design and simulation of an efficient statcom controller to. University of new orleans theses and dissertations. Abstractthe static synchronous compensator statcom is one of the developed converterbased flexible ac transmission systems facts controllers, recently. K, ranjit roy, shunt compensation for power quality improvement using statcom controller.
To maintain system stability after faults, the transmission line is shunt compensated at its centre by a 200mvar statcom with power system controller. The proposed d statcom model is very effective to enhance the power quality of an isolated distribution system feeding power to crucial equipment in remote areas. It consists of voltage sourced converters connected to an energy storage device on one side and to the power. The electrical circuit is discretized using a sample time ts40 microseconds. Statcom with fuzzy controllers for interconnected power. Matlab simulink tool box and presented here for clarity of the control strategy. A novel controller based 48pulse statcom for reactive. The complete digital simulation of the statcom within the power system is performed in the matlabsimulink environment using the power system blockset psb. The matlabsimulink software is used to verify the effectiveness of each control method. This paper presents the statcom system with the bess and studies the impact on the power quality in a system which consist of wind turbine generator, nonlinear load, hysteresis controller for controlling the operation of statcom and grid. This statcom is a phasor model of a typical threelevel pwm statcom. Trial software hysteresis current controller for statcom matlab r2015a. Applications of dstatcom using matlabsimulation in power.
Improving power system stability in the presence of wind. Other sources 508 and 512 are shown along with another load 510, load 510 being 200 mw. On the ac side, its total equivalent impedance is 0. The d statcom compensates voltage by injecting a reactive current modulated at 5 hz trace 3 of. This model is well suited for observing harmonics and control system dynamic performance over relatively short periods of times typically hundreds of. A statcom or static synchronous compensator is a regulating device used on.
Statcom static synchronous compensator power quality. Recent simulation for reactive power compensation using statcom that is static syncronous compensator on matlab software. Two fuzzypi are used for the control of d and qaxes currents separately. Design and simulation of an efficient statcom controller to. The statcom is shunts with power system and can absorbdeliver reactive power fromto power systems. In this paper, the main structure of simulink statcom model is described briefly. The statcom is a shunt device of the flexible ac transmission systems facts family using power electronics. The simulations were performed and results were found to be satisfactory using matlab simulink. I want it for wind ig system to restore the voltage during fault. Modeling and simulation of statcom for a power system network.
Enhancement of power quality in distribution system using. Moreover, the obtained results of each domain are compared using the two techniques of the predictive strategy, i. The threephase static synchronous compensator statcom connected at the point of common coupling pcc to compensate the unbalance current and to eliminate the harmonics. The simulation results have demonstrated that statcom can be effectively applied in power transmission systems to solve the problems. Design of statcom for power system stability improvement. A phase control thyristor scr based voltage source inverter vsi is. Power electronics control design with simulink matlab. When system voltage is high, it absorbs reactive power statcom inductive. The interconnected grids become unstable as the heavy.
Statcom controller design based on mlp for power flow. The mmcstatcom is built using the fullbridge mmc block to represent a power electronics converter of 22 modules per phase. Now, in the d statcom controller, change the mode of operation parameter back to voltage regulation and restart simulation. The complete simulink model of statcom with power system controller is shown in fig. Statcom control for power system voltage control applications.
The block diagram of study system ieee fbm with facts controller is shown in fig. Brockhoeft, tetiana, educational modeling for fault analysis of power systems with statcom controllers using simulink 2014. This method is simulated using matlabsimulink software. Sep 20, 2019 the performance of statcom with pi and fuzzy logic controller is also analyzed and compared for dc voltage regulation and harmonic distortion mitigation. The statcom is a shunt device of the flexible ac transmission systems facts family using power. During steadystate operation the statcom control system keeps the. The heart of the tms320lf2407a dsp controller is the c2xx dsp core.
To model statcom in ieee 4 bus power system network sample. Model of upfc a proportionalintegral pi controller was applied to regulate the ac voltage or alternatively, power flow absorbed or generated by the upfc controller. To simulate statcom model in ieee 4 bus power system network using pscad software. Comparison study of controllers implemental in statcom. Reactive power increases the transmission system losses and reduces the power transmission capability of the transmission lines. Modelling and simulation of statcom for reactive power and. A static compensator statcom is a device that can provide reactive support to a bus.
During this test, the variable load will be kept constant and you will observe the dynamic response of a dstatcom to step changes in source voltage. Control scheme for statcom pid controller and generator excitation to achieve transient stability, damping oscillation is controlled by power system pss and voltage regulation enhancement of power systems is presented. Aug 29, 2019 github is where people build software. Please help me in modelling hysteresis current controller for statcom. The statcom sc is designed for damping power oscillation on the tie line and improving dynamic behavior of the interconnected power systems. A pod controller is developed and is tuned to provide an additional damping to stabilize the power system after severe disturbances. It is also a member of the socalled flexible ac transmission system facts devices. Power quality improvement by using statcom control scheme.
Matlabsimulink power system block set example 2 distribution statcom, 078035935600, 2000 ieee 3 amit singla, prof. The pod controller constitutes a transfer function which is composed of a transducer with a gain which is followed by a washout filter. A vsi based d statcom is used to supply both reactive var and harmonic current to the load, so the source current is sinusoidal and have unity power factorupf. The steady state performance of statcoms controller is analyzed through computer simulations with matlabsimulink program. Modelling and simulation of statcom for reactive power. Sep 27, 2016 ieee matlab ac to dc projects,ieee matlab dc to dc projects,ieee matlab pid projects,ieee matlab pi projects,ieee matlab fuzzy controller projects,ieee matlab anfis projects,ieee fuzzy logic. Power quality improvement of grid connected wind energy. Control of synchronous generator excitation and rotor. Power electronics engineers use matlab and simulink to develop digital control systems for motors, power converters, and battery systems use simulink for simulating and generating code for supervisory and closedloop control algorithms and reduce project time by 50% compared to traditional hand coding and testing on hardware access thousands of readytouse electrical modeling. The steadystate and transient performance of a 12pulse, mw 500 kv2ka 5060 hz hvdc transmission system. Educational modeling for fault analysis of power systems. The statcom basically performs the same function as the static var compensators but with some advantages. Models of power system, dstatcom, and controller unit are developed in matlabsimulink environment. Matlab software designed by matlab team in the version of 7.
Unified power flow controller phasor type implement phasor model of threephase unified power flow controller. During this test, the variable load will be kept constant and you will observe the dynamic response of a d statcom to step changes in source voltage. The results obtained are compared with that of conventional pi controller and it is proved that the fuzzy controlled as well as ann controlled svc and statcom gives better results than svc and statcom with conventional pi controller. Dstatcom modelling for voltage stability with fuzzy logic. Introduction power systems with long distance power transmission lines tend to become unstable when the power flow is heavy 16. It having lots of advantages over oth slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Statcom is a shunt device used in correcting power factor, maintaining constant.
Gto, igbt to control power flow and improve transient stability on electrical power networks. Hysteresis current controller for statcom matlab r2015a. Statcom controller design based on mlp for power flow control. Statcom is modeled and simulated using matlab simulink software. The proposed dstatcom model is very effective to enhance the power quality of an isolated distribution system feeding power to crucial equipment in remote areas. The controller uses a larger sample time 32ts 160 microseconds. Statcom or static synchronous compensator is a shunt device, which uses forcecommutated power electronics i. The mmc statcom is built using the fullbridge mmc block to represent a power electronics converter of 22 modules per phase. Electrical engineering, engineering, mathematics, matlab and mathematica, mechanical engineering see more. The proposed statcom has been simulated using the matlab simulink package. The statcom basically performs the same function as the static var compensators but with. Index termsstatcom, small signal model, jacobian matrix. In this paper, fuzzypi controller which is a robust controller is proposed for dstatcoms d and qaxes currents control.
Distribution static compensator dstatcom, fuzzy inference systems fis, proportional integral pi, synchronous reference frame theory srf, voltage. All responses are obtained trough matlab simulink tool box and presented here for clarity of the control strategy. Sep 26, 2011 statcom or static synchronous compensator is a shunt device, which uses forcecommutated power electronics i. So the shunt controller is therefore a good way to control voltage in and around the point of connection through injection of reactive current leading or lagging alone or a. The 48pulse statcom uses a voltagesourced converter vsc built of four 12 pulse. Threephase statcom controller using dq frame theory for. Voltage controller used to maintain constant dc link voltage.
The electrical circuit is discretized using a sample time ts5 microseconds. Jan 08, 2018 the simulation results were evaluated using matlab software in the field of time and frequency under different scenarios. The matlab software model is used for simulation of test system. The simulations were performed and results were found to be satisfactory using matlabsimulink. The statcom controller parameters are shown in table 1. A statcom simulation model to improve voltage sag due to starting. Trial software hysteresis current controller for statcom matlab r2015a follow 2 views last 30 days vikas tiwari 1 minute ago. The simulation of the pi proportional plus integral controllerbased control scheme for voltage profile improvement using the statcom. Statcom used for midpoint voltage regulation on a 500kv transmission line. Raghavendar published on 20927 download full article with reference data and citations. By using the statcom 10 kvar reactive power is supplied to 12. How can i see simulink output vector of statcom in matlab. Design and implementation of statcom controller for a.
The dstatcom is controlled using synchronous reference frame theory srf using the pi controller. This is a standard sample statcom system from a matlabsimulink library. The generated voltage and the grid current are expressed as v s and i respectively. The simulation results were evaluated using matlab software in the field of time and frequency under different scenarios. Facts devices modeling in realtime dynamic control of power systems. Aug 01, 2000 the statcom sc is designed for damping power oscillation on the tie line and improving dynamic behavior of the interconnected power systems. The novel controller for the statcom presented in this paper is based on a decoupled strategy using the direct and quadrature components of the statcom current.
Learn more about hysteresis current controller, wind integrated system matlab. In this paper, to power flow control in power system by statcom, a controller based. The statcom is in voltage control mode and its reference voltage is set to vref1. Linear model, controller design, pi controller, statcom i. To analyze the steadystate analysis of the 4 bus power system network with and without statcom applied. Mathworks is the leading developer of mathematical computing software for. Dstatcom modelling for voltage stability with fuzzy logic pi current. More than 40 million people use github to discover, fork, and contribute to over 100 million projects. This is a standard sample statcom system from a matlab simulink library. The dq frame theory based control algorithm is used to generate the switching pulses to the statcom.
Introduction nowadays power systems have become very complex with interconnected long distance transmission lines. Control of dstatcom is usually realized by proportionalintegral pi controllers. Hysteresis current controller for statcom matlab r2015a follow 2 views last 30 days vikas tiwari on 29 apr 2020 at 11. This example models a shunt compensation device that is increasingly used in modern grids. The performance of statcom with pi and fuzzy logic controller is also analyzed and compared for dc voltage regulation and harmonic distortion mitigation. The example described in this section illustrates application of simscape electrical specialized power systems software to study the steadystate and dynamic performance of a static synchronous compensator statcom on a transmission system. A vsi based dstatcom is used to supply both reactive var and harmonic current to the load, so the source current is sinusoidal and have unity power factorupf. In electrical grids, shunt compensation is often used for reactive power and voltage control. The one line diagram of study system with statcom is similar as shown in fig. The controller uses a larger sample time 4ts160 microseconds.
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