The outer loop adjusts proportional and integral control gains of voltage regulator. Each of the outer loop and the inner loop comprises a proportional integral controller. Reactive power increases the transmission system losses and reduces the power transmission capability of the transmission lines. The statcom control scheme for the grid connected wind energy generation system for power quality improvement is simulated using matlab simulink in power system block set. Voltage controller used to maintain constant dc link voltage. Matlabsimulink model of the statcom system download. Simulation results indicate that the statcom controller. The mmc statcom is built using the fullbridge mmc block to represent a power electronics converter of 22 modules per phase. Svc light is a vsc concept, based on a chainlink modular multilevel converter mmc. Compensates reactive power in single phase system as well as mitigates harmonics. Matlab simulink power system block set example 2 distribution statcom, 078035935600, 2000 ieee.
Gto, igbt to control power flow and improve transient stability on electrical power networks. This statcom is a phasor model of a typical threelevel pwm statcom. Citeseerx a novel controller based 48pulse statcom for. Run the command by entering it in the matlab command window. In electrical grids, shunt compensation is often used for reactive power and voltage control. Modeling and simulation of static var compensator for voltage control using matlab simulink. A statcomcontrol scheme for grid connected wind energy. Intelligence controller for statcom using cascaded. This example models a shunt compensation device that is increasingly used in modern grids. We will now verify the dynamic response of our model. Statcom or static synchronous compensator is a power electronic device using force commutated devices like igbt, gto etc.
On the ac side, its total equivalent impedance is 0. Abstract these paper presents the dynamic operation of a novel control scheme for static synchronous compensator statcom based on a new full model comprising a 48pulse gate turnoff gto thyristor voltage source converter for combined reactive power compensation and voltage. Distribution side static compensator statcom for var and harmonic compensation. The statcom is in voltage control mode and its reference voltage is set to vref1. System voltage support and stabilization by smooth control over a wide range of operating conditions.
In this paper controller designing uses pole placement method, with assistance of genetic algorithm. Unified power flow controller phasor type implement phasor model of threephase unified power flow controller. Study of reactive power compensation using statcom a project submitted in partial fulfillment of the requirement for the degree of bachelor of technology. To maintain system stability after faults, the transmission line is shunt compensated at its centre by a 200mvar statcom with power system controller. Run the simulation and observe on scope3 variations of p and q at bus b3 1st trace as well as voltages at buses b1 and b3 trace 2.
Statcom model for the voltage regulation using the three level neutralclamped voltage source converter. A flickermeter device is used to measure the instantaneous flicker sensation on terminal voltage of a statcom unit. Now, in the d statcom controller, change the mode of operation parameter back to voltage regulation and restart simulation. Abbs offerings in the high power statcom field include svc light statcom as well as pcs 6000 statcom, where pcs 6000 statcom is applicable for unit ratings up to 40 mvar and svc light statcom is applicable for ratings exceeding 40 mvar. The statcom system including controls, power electronics and cooling unit are tailor made for fulfilling the customer specific requirements. Modelling and voltage control of the solarwind hybrid. It is also a member of the socalled flexible ac transmission system facts devices. Three phase vsi statcom supplying reactive power to rl load. The steady state performance of statcom s controller is analyzed through computer simulations with matlab simulink program. Pdf modeling and simulation of static var compensator.
The simulation results have demonstrated that statcom can be effectively applied in power transmission systems to solve the problems of poor dynamic performance and voltage regulation. Statcom with fuzzy controllers for interconnected power. Three phase statcom using dq control matlab central. Open the statcom dialog box and select display control parameters. Adaptive pi control of statcom for voltage regulation abstract statcom can provide fast and efficient reactive power support to maintain power system voltage stability. Vsc based statcom file exchange matlab central mathworks. Controlling statcom by full order state feedback controller for stability improvement. The d statcom compensates voltage by injecting a reactive current modulated at 5 hz trace 3 of scope3. 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. Verify that the mode of operation is set to voltage regulation and that external control of. Statcom used for midpoint voltage regulation on a 500kv transmission line. A static synchronous compensator statcom used for midpoint voltage regulation on a 500kv transmission line. Intelligence controller for statcom using cascaded multilevel inverter p.
Download all ma tlab final year projects, mat lab project reports, mat lab projects ideas. Control power flow using a unified power flow controller upfc and a phase shifting transformer pst. The controls are provided with the pi controller and statcom control circuit using pi, and pll is modelled in matlab simulink. This model is well suited for observing harmonics and control system dynamic performance over relatively short periods of times typically hundreds of. The statcom sc is designed for damping power oscillation on the tie line and improving dynamic behavior of the interconnected power systems. The complete simulink model of statcom with power system controller is shown in fig. Todays power systems have been extended due to interconnections with the neighboring systems. Reviews on matlab dstatcom simulation models in mitigating. The parameters employed in statcom is listed in table 1. Verify that the mode of operation is set to voltage regulation and that external control. The battery energy storage is integrated to sustain the real power source under. Nagesh published on 20180730 download full article with reference data and citations.
High reliability with redundant parallel converter design and modular construction. Finally, in the d statcom controller, change the mode of operation parameter to q regulation and make sure that the reactive power reference value qref 2nd line of parameters is set to zero. Energy cost is increasing due to greater sensitivity of new. 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. Reviews on matlab dstatcom simulation models in mitigating power quality problems. Operation of dstatcom in voltage control mode ijert. The flickermeter model is designed according to functional specifications of the international standard iec 6100415 1. The static synchronous compensator phasor type block models a static synchronous compensator statcom shunt device of the flexible ac transmission systems facts family using power electronics to control power flow and improve transient stability on power grids 1. The statcom regulates voltage at its terminal by controlling the amount of reactive power injected into or. The new method is tested in matlab, and their results are obtained. Statcom or static synchronous compensator is a shunt device, which uses forcecommutated power electronics i.
The pcs 6000 statcom uses advanced igct technology integrated gate commutated thyristor that has been developed by abb from a proven bipolar semiconductor background gto. Design of statcom for power system stability improvement. Adaptive pi control of statcom for voltage regulation. Statcom is shunt connected reactive compensation device that is capable of generating and or absorbing reactive power and its output can be varied to control the specific parameters of an electrical power system 4. Pdf design and simulation of an efficient statcom controller to. Operation of d statcom in voltage control mode written by vamshi sunku mohan kumar, dr. The complete digital simulation of the statcom within the power system is performed in the matlab simulink environment using the power system blockset psb. In this paper genetic algorithm based pole placement method can be used for the control of csc based statcom. A statcom have different control modes for voltage regulation and harmonic distortion. Statcom using simulink and simpower system toolboxes in matlab.
The effectiveness of the proposed scheme relives the main supply source from the reactive power demand of the load and the induction generator. Statcom detailed mmc model with 22 power modules per. If you open the statcom dialog box and select display power data, you will see that our model represents a statcom having a dc link nominal voltage of 40 kv with an equivalent capacitance of 375 uf. The statcom is a shunt device of the flexible ac transmission systems facts family using power electronics. Genetic algorithm based pole placement controller for a. An adaptive controller for a static compensator statcom to enhance voltage stability comprises an outer voltage regulator loop and an inner current regulator loop. 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. Citeseerx document details isaac councill, lee giles, pradeep teregowda. A novel controller based 48pulse statcom for reactive. In this paper statcom is used for reactive power compensation and to improve voltage profile.
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