An Advanced DC Voltage Based Control for Series Active Power Filter

2008 ◽  
Author(s):  
Yuan Chang ◽  
Liu Jinjun ◽  
Wang Xiaoyu ◽  
Li Jing ◽  
Yang Chao ◽  
...  
Keyword(s):  
Active Power Filter ◽  
Active Power ◽  
Dc Voltage ◽  
Power Filter

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.

scholarly journals A DC Voltage Control Strategy for Active Power Filter

2016 ◽  
Vol 10 (1) ◽  
pp. 166-180
Author(s):  
Xudong Cao ◽  
Shaozhe Zhou ◽  
Jingze Li ◽  
Shaohua Zhang
Keyword(s):  
Power Loss ◽  
Reactive Power ◽  
Active Power Filter ◽  
Active Power ◽  
Voltage Control Strategy ◽  
Dc Voltage ◽  
Power Filter ◽  
Voltage Controller ◽  
Dc Voltage Control ◽  
The Stability

Active Power Filter (APF) is capable of changing the size and frequency of harmonics as well as changes in reactive power compensation. It is important to control the stability of the DC-link capacitor voltage stability for it. For DC voltage controls of APF, there are two important achievements. First, it is indicated that the control of DC voltage directly affects the compensation performance of APF. Second, the value of DC voltage influences the power loss of APF. This paper firstly introduces the design of the DC voltage controller. Then the relationship between DC voltage and the power loss as well as the compensation performance of APF is analyzed. Finally, a new control scheme with a droop controller is developed to regulate DC voltage.

Optimized Control of DC Voltage Based on BP Neural Network in Active Power Filter

2013 ◽  
Vol 860-863 ◽  
pp. 1867-1876
Author(s):  
Jian Fu Peng ◽  
Le Feng Cheng ◽  
Li Peng Huang ◽  
Jing Jiang ◽  
Tao Yu
Keyword(s):  
Neural Network ◽  
Bp Neural Network ◽  
Active Power Filter ◽  
Active Power ◽  
Hysteresis Width ◽  
Dc Voltage ◽  
Grid Voltage ◽  
Power Filter ◽  
Voltage Variation ◽  
Arbitrary Precision

This paper presents an intelligent method of optimized control of DC voltage based on BP Neural network, on account of this presentd method, by collecting parameters of grid voltage and significant frequency of harmonic current, then, construct couples of tranining samples and fully use the advantages of BP Neural network that can discretionarily utlize arbitrary precision to approximate any continuous function, and computing the optimized voltage of DC side, as a result, achieving online adjustment of capcitors voltage at DC side. Futher more, adjusting the hysteresis width automatically according to the voltage variation of capacitor, thus the voltage of DC side can automatically adapt to fluctuation of grid voltage and load current, so that to obtain comprehensive optimum of power loss and compensation performance of power active filter.

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