ANN Based Reduced Switch Multilevel Inverter in UPQC for Power Quality Improvement

Jeevanantham, Y. Alexander; Srinath, S.

doi:10.32604/iasc.2022.022907

Cited by 2 publications

(2 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are several modulation techniques used for switching the power device MLI. These include Pulse Width Modulation (PWM) [21,23,25,34], Voltage bala [11,33], Algorithmic-Controller-based PWM [37,38,[40][41][42], and Artificial-Intelli based Controller [30,35,39]. In this work, a model predictive control algorithm wa to predict the width and instance of the switching pulses based on a reference sine A model predictive control algorithm was used in this inverter, and its workflow picted below in Figure 3.…”

Section: Modulation Techniquementioning

confidence: 99%

“…A zeta converter to regulate output from PV array and a level-shifted switching-based MLI inverter is discussed in [34], and it is found to give promising results for PV array. In [35], a unified power quality controller is proposed, and this model uses an MLI based on ANN and soft computing techniques for mitigating various power quality issues. A switched capacitor MLI to achieve 19-level output is explained in [36], along with its results.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Performance Analysis of Harmonic-Reduced Modified PUC Multi-Level Inverter Based on an MPC Algorithm

Krishnamoorthy,

Pitchaikani,

Rusu

et al. 2023

Inventions

View full text Add to dashboard Cite

Renewable and distributed energy generation includes wind turbines, fuel cells, solar cells, and batteries. These distributed energy sources need special power converters in order to connect them to the grid and make the generated power available for public use. Solar energy is the most readily available energy source; hence, if utilized properly, it can power up both domestic and industrial loads. Solar cells produce DC power, and this should be converted to an AC source with the help of inverters. A multi-level inverter for an application is selected based on a trade-off between cost, complexity, losses, and total harmonic distortion (THD). A packed U-cell (PUC) topology is composed of power switches and voltage sources connected in a series-parallel fashion. This basic unit can be extended to a greater number of output voltage levels. The significance of this design is the reduced use of power switches, gate drivers, protection circuits, and capacitors. The converter presented in this paper is a 31-level topology switched by a variable switching frequency-based model predictive controller that helps in achieving optimal output with reduced harmonics to a great extent. The gate driver circuit is also optimized in terms of power consumption and size complexity. A comparison of the 9-level and the 31-level PUC inverters is carried out to study the impact of the number of levels on the total harmonic distortion. The simulation results depict that the total harmonic distortion (THD) for a nominal modulation index of 0.8 is 11.54% and 3.27% for the 9-level multi-level inverter (MLI) and the 31-level modified packed U-cell multi-level inverter (MPUC-MLI), respectively. The reduction in THD is attributed to the increased number of steps in the output when using the model predictive controller.

show abstract

Section: Modulation Techniquementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Harmonic-Reduced Modified PUC Multi-Level Inverter Based on an MPC Algorithm

Krishnamoorthy,

Pitchaikani,

Rusu

et al. 2023

Inventions

View full text Add to dashboard Cite

show abstract

Application of a three‐phase unified power quality conditioner in a microgrid

Wu,

Huang,

Chen

2024

IET Smart Grid

View full text Add to dashboard Cite

In power distribution systems, common issues such as voltage fluctuations, voltage instability, current harmonics, and power imbalances often arise, negatively impacting the stability and power quality (PQ) of the power system. As an advanced power electronics device, the unified power quality conditioner (UPQC) can effectively address these problems. Therefore, the integration of UPQC into power distribution lines can enhance the stability and reliability of the power system, providing higher‐quality power supply to meet the needs of both users and suppliers for PQ. The authors utilise the TI TMS320F28377D chip as the control core to construct a simple yet highly efficient UPQC system. Through simulation, the correctness of the voltage and current compensation algorithms has been verified, and the overall system feasibility has been validated using a 100‐kVA series‐shunt inverter. The experimental results show that the voltage compensation range of the UPQC is 380V ± 10%. During sudden current drops, the imbalance rate can be reduced from 85.5% to 1.32% after controlled compensation. During sudden current rises, the imbalance rate can be reduced from 13.1% to 1.56% after controlled compensation. These findings demonstrate the effectiveness of the UPQC system in improving PQ and system stability in power distribution networks.

show abstract

ANN Based Reduced Switch Multilevel Inverter in UPQC for Power Quality Improvement

Cited by 2 publications

References 20 publications

Performance Analysis of Harmonic-Reduced Modified PUC Multi-Level Inverter Based on an MPC Algorithm

Performance Analysis of Harmonic-Reduced Modified PUC Multi-Level Inverter Based on an MPC Algorithm

Application of a three‐phase unified power quality conditioner in a microgrid

Contact Info

Product

Resources

About