scholarly journals A novel control approach for harmonic compensation using switched power filter compensators in micro‐grids

2021 ◽  
Author(s):  
Nima Khosravi ◽  
Hamid Reza Abdolmohammadi ◽  
Sajad Bagheri ◽  
Mohammad Reza Miveh
Keyword(s):  
Harmonic Compensation ◽  
Control Approach ◽  
Power Filter ◽  
Micro Grids

scholarly journals Modeling and Analysis of a Multilevel Parallel Hybrid Active Power Filter

2016 ◽  
Vol 6 (3) ◽  
pp. 976-981 ◽  
Author(s):  
T. Demirdelen ◽  
R. I. Kayaalp ◽  
M. Tumay
Keyword(s):  
Reactive Power ◽  
Control Method ◽  
Active Power Filter ◽  
Active Power ◽  
Harmonic Compensation ◽  
Modeling And Analysis ◽  
Control Approach ◽  
Power Filter ◽  
Hybrid Active Power Filter ◽  
Parallel Hybrid

This paper introduces a new control approach for the Multilevel Parallel Hybrid Active Power Filter (M-PHAPF) which can compensate harmonics and variable reactive power demand of loads by controlling the DC link voltage adaptively in medium voltage applications. By the means of this novel control method, M-PHAPF obtains a better and more efficient performance in the compensation of harmonics and reactive power compared to when using conventional control methods. The performance and stability of the proposed method are verified with a simulation model realized in PSCAD/EMTDC with different case studies. The simulation results demonstrate that harmonic compensation performance meets the requirements of the IEEE-519 standard.

scholarly journals Selective Harmonic-Compensation Control for Single-Phase Active Power Filter With High Harmonic Rejection

2009 ◽  
Vol 56 (8) ◽  
pp. 3117-3127 ◽  
Author(s):  
J. Miret ◽  
M. Castilla ◽  
J. Matas ◽  
J.M. Guerrero ◽  
J.C. Vasquez
Keyword(s):  
Single Phase ◽  
High Harmonic ◽  
Active Power Filter ◽  
Active Power ◽  
Harmonic Compensation ◽  
Power Filter ◽  
Compensation Control ◽  
Harmonic Rejection

Approximated Simplest Fuzzy Logic Controlled Shunt Active Power Filter for Current Harmonic Mitigation

2013 ◽  
pp. 155-171
Author(s):  
Rambir Singh ◽  
Asheesh K. Singh ◽  
Rakesh K. Arya
Keyword(s):  
Fuzzy Logic ◽  
Fuzzy Logic Controller ◽  
Active Power Filter ◽  
Pi Controller ◽  
Active Power ◽  
Rule Base ◽  
Shunt Active Power Filter ◽  
Harmonic Compensation ◽  
Power Filter ◽  
Harmonic Mitigation

This paper examines the size reduction of the fuzzy rule base without compromising the control characteristics of a fuzzy logic controller (FLC). A 49-rule FLC is approximated by a 4-rule simplest FLC using compensating factors. This approximated 4-rule FLC is implemented to control the shunt active power filter (APF), which is used for harmonic mitigation in source current. The proposed control methodology is less complex and computationally efficient due to significant reduction in the size of rule base. As a result, computational time and memory requirement are also reduced significantly. The control performance and harmonic compensation capability of proposed approximated 4-rule FLC based shunt APF is compared with the conventional PI controller and 49-rule FLC under randomly varying nonlinear loads. The simulation results presented under transient and steady state conditions show that dynamic performance of approximated simplest FLC is better than conventional PI controller and comparable with 49-rule FLC, while maintaining harmonic compensation within limits. Due to its effectiveness and reduced complexity, the proposed approximation methodology emerges out to be a suitable alternative for large rule FLC.

scholarly journals Cooperation of Voltage Controlled Active Power Filter with Grid-Connected DGs in Microgrid

2018 ◽  
Vol 11 (1) ◽  
pp. 154 ◽  
Author(s):  
Hafiz Munir ◽  
Jianxiao Zou ◽  
Chuan Xie ◽  
Josep Guerrero
Keyword(s):  
Power Distribution ◽  
Distribution Systems ◽  
Active Power Filter ◽  
Active Power ◽  
Current Control ◽  
Control Loop ◽  
Renewable Energy Resources ◽  
Harmonic Compensation ◽  
Power Filter ◽  
Voltage Feedback

Due to the excessive use of nonlinear loads and inverter interfaced distributed generators, harmonic issues have been regarded as a major concern in power distribution systems. Therefore, harmonic compensation in microgrids is a subject of current interest. Consequently, a novel direct harmonic voltage-controlled mode (VCM) active power filter (APF) is proposed to mitigate the harmonics in a cooperative manner and provide a better harmonic compensation performance of less than 5%. Due to the dispersive characteristics of renewable energy resources, voltage feedback based on a harmonic compensation control loop is implemented for the first time. This system can be smoothly combined with the current control loop. Our method proposes a better performance while mitigating the harmonics in comparison with conventional resistive active power filters (R-APF). Based on direct voltage detection at the point of common coupling (PCC), the proposed VCM-APF can therefore be seamlessly incorporated with multiple grid-connected generators (DGs) to enhance their harmonic compensation capabilities. The advantage of this scheme is that it avoids the need for designing and tuning the resistance, which was required in earlier conventional control schemes of R-APF for voltage unbalance compensation. Additionally, our scheme does not require the grid and load current measurements since these can be carried out at the PCC voltage, which further reduces the implementation cost of the system. Furthermore, the simulation results show the significance of proposed method.

The Research of SVPWM Control of Shunt Active Power Filter Based on the Inner Relationship between Current and Voltage

2014 ◽  
Vol 528 ◽  
pp. 201-209 ◽  
Author(s):  
Meng Hua Zhang ◽  
Xin Gong Cheng ◽  
Xi Ju Zong
Keyword(s):  
Control Strategy ◽  
Compensation Effect ◽  
Active Power Filter ◽  
Active Power ◽  
Voltage Reference ◽  
Shunt Active Power Filter ◽  
Harmonic Compensation ◽  
Dc Voltage ◽  
Power Filter ◽  
Low Efficiency

To achieve the goal of decreasing the harmonic level in the power grid, traditional shunt active power filter uses the methods such as triangular wave comparison and hysteresis comparator which overall exist some problems, for instance, poor ability of current tracking and low efficiency of DC voltage utilization that lead to bad compensation result. Therefore, we put forward another SVPWM based control strategy in which a relationship between the current reference instruction of active power filter and the voltage reference instruction of SVPWM is found via the topological structure of shunt active power filter. Then we can use SVPWM method to accurately track and compensate the harmonic current. Simulation and experimental results show that the control strategy can solve the above proposed problems and bring about very good harmonic compensation effect.

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