This paper proposes a matrix converter based unified power quality conditioner (MC–UPQC) for mitigating power quality problems. This proposed system is a combination of unified power quality conditioner and matrix converter. The UPQC is a combination of back-toback connected series and shunt active filters through a dclink. Voltage disturbances and harmonics are compensated by series active fil...

The Problems due to Harmonics and reactive power loses has been pertaining from the decades. Since many methods are proposed to reduce those above mentioned problems. one of the best method is employing Active Filters for the elimination of Harmonics and compensation of reactive power problems. This paper mainly explains about the new AF technology and different topologies utilizing in the pres...

Active filtering of electric power has now become a mature technology for harmonic and reactive power compensation in two-wire (single phase), three-wire (three phase without neutral), and four-wire (three phase with neutral) ac power networks with nonlinear loads. This paper presents a comprehensive review of active filter (AF) configurations, control strategies, selection of components, other...

The revolution in power electronics has opened an era for widespread use of power converters of different power rating from few Watts to Mega-Watts. AC-DC converters are most widely used power converters as the distributed electric power is AC supply, while the applications based on DC supply as well as variable frequency AC supply, need conversion of AC supply into DC supply. Large current har...

This paper aims in presenting the importance of presence of STATCOM for enhancement of power quality of existing transmission network. STATCOM is used for controlling various transmission parameters such as shunt impedance, line voltage, current, active and reactive power, oscillation damping etc. Experimental controlled reading of STATCOM is obtained with the help of lab model for various para...

The wind energy conversion system (WECS) differs from other power systems. It is clean and pollution free. But the output of wind power plant is fluctuated in nature. It depends on the wind speed. The nature of wind is variable. The variable wind generates fluctuated power. Fluctuated output is the major problem of wind power plant. This problem can be solved by using convertor units. The secon...

recently, use of research, theory, evidence-based practice (ebp), and quality improvement (qi) has increased dramatically in the professional manuscripts and discourses of the health related literature. however, inadequate knowledge and inability to recognize the differences between these processes have led to uncertainty in some of these practices. elucidation of such processes is of paramount...

This paper proposes a single-phase five-level photovoltaic (PV) inverter topology for grid-connected PV systems with a novel pulse width-modulated (PWM) control scheme. Two reference signals identical to each other with an offset equivalent to the amplitude of the triangular carrier signal were used to generate PWM signals for the switches. A digital proportional–integral current control algori...

This paper focuses on the control techniques employed for Distribution Static Compensator. Distributed static compensator is a device used for power quality improvement. Here we considered voltage source converter based distributed static compensator. It describes to control distribution Static Compensator employed at the distribution end. The phase shift control and AC bus /DC link voltage sch...

This paper presents a multi-objective control strategy for power quality issues. With increasing applications of nonlinear and semi-conductor devices in distribution systems and industries, power-quality (PQ) problems, such as harmonics, neutral current elimination, voltage sag, voltage swell reactive power has become an unavoidable issue. Due to the changing trends and restructuring of power s...