A Novel Method for Modeling and Simulation of Asymmetrical Impedance-source Converters

Kiani

et al. 2021

IJPEDS

Transmission lines react to an unexpected increase in power, and if these power changes are not controlled, some lines will become overloaded on certain routes. Flexible alternating current transmission system (FACTS) devices can change the voltage range and phase angle and thus control the power flow. This paper presents suitable mathematical modeling of FACTS devices including static var compensator (SVC) as a parallel compensator and high voltage direct current (HVDC) bonding. A comprehensive modeling of SVC and HVDC bonding in the form of simultaneous applications for power flow is also performed, and the effects of compensations are compared. The comprehensive model obtained was implemented on the 5-bus test system in MATLAB software using the Newton-Raphson method, revealed that generators have to produce more power. Also, the addition of these devices stabilizes the voltage and controls active and reactive power in the network.

Section: Resultsmentioning

confidence: 99%

Modeling of static var compensator-high voltage direct current to provide power and improve voltage profile

Javadian

Kiani

et al. 2021

IJPEDS

“…Here, 𝑋 2 is called constant stability. A new variable error is defined between the virtual value and the desired value [21], [22].…”

Section: Design Of Backstepping Controllermentioning

confidence: 99%

Design of a new backstepping controller for control of microgrid sources inverter

Kiani

Sutikno

et al. 2022

IJECE

Emergency power supply is becoming an important capability for many home or industrial electronic and computer devices. Therefore, the performance of the designed unintermptible power supplies (UPS) inverters has low distortion at the output voltage. Initially, such inverters were controlled by proportional integral (PI) control classic rules. This method is difficult to understand the limitations of stability and to apply transient response to strong external disturbances. In this paper, an inverter is simulated and offered for single-phase and three-phase voltage controlled by a non-linear controller. For this purpose, a comparison has been made between the controller performance and the PI controller. In the first step, there is a backstepping regulator that uses the stability tool next to the Lyapunov function. And the other regulator operates according to the PI method. The performance of these two regulators is simulated during a change in reference or a load change in MATLAB. Also, a method of feedback voltage control based on the Lyapunov theory for controlling of the distributed generation (DG) unit independent Inverter is presented. The proposed controller is not only simple, but also against the sudden changes in load and the unspecified system is resistant.

“…In here based on the functionality of this generator in combination with wind turbine and selected control system, the speed of machine as entering and three-phase current of machines as output is considered for turbine-generator. Thus, the equations will change as (11), ( 12) and ( 13) [50], [51].…”

Section: Modeling Of Permanent Magnet Synchronous Generator (Pmsg)mentioning

confidence: 99%

“…Because the output voltage is not constant and it become short-circuit because of the switches sometimes, for controlling signal we use capacitor voltage which is constant. The equation (16) shows the relationship between capacitor (C 2 ) and output voltage [51], [62], [63].…”

Section: Mppt Control Systemmentioning

confidence: 99%

See 1 more Smart Citation

Using Y-source network as a connector between turbine and network in the structure of variable speed wind turbine

Sutikno

Ildarabadi

2021

IJPEDS

Environmental factors such as air pollution and increase in global warming by using polluting fuels are the most important reasons of using renewable and clean energy that runs in global community. Wind energy is one of the most suitable and widely used kind of renewable energy which had been in consideration so well. This paper introduces an electric power generation system of wind based on Y-source and improved Y-source inverter to deliver optimal electrical power to the network. This new converter is from impedance source converters family. This presented converter has more degrees of freedom to adjust voltage gain and modulation. Also, by limiting the range of simultaneous control (shooting through) while it maintains the highest power of maximizer, it can operate in higher modulation range. This causes the reduce of stress in switching and thus it will improve the quality of output. Recommended system had been simulated in MATLAB/Simulink and shown results indicate accurate functionality.