Adaptive DC-link Voltage Control for Shunt Active Power Filter

Wang, Yu; Xie, Yunxiang

doi:10.6113/jpe.2014.14.4.764

Cited by 17 publications

(12 citation statements)

References 27 publications

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“…Fortunately, some published studies have investigated the DC-link voltage control in three-phase four-wire APFs [7]- [20]. However, these existing studies mainly focus on minimum DC-link voltage designs [7]- [10], DC-link voltage control strategies [11]- [13], adaptive DC-link voltage references values [14]- [16], the control algorithms applied to the DC-link voltage controller [17]- [20], and the DC-link voltage control along with the improvements of the current control strategy [21], [22]. The balance between the DC-link upper and lower capacitor voltages, which is a unique problem in three-phase four-wire split-capacitor APFs, had still not been studies or analyzed.…”

Section: Introductionmentioning

confidence: 99%

DC-Link Voltage Balance Control in Three-phase Four-wire Active Power Filters

Wang¹,

Guan²,

Xie³

et al. 2016

Journal of Power Electronics

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The three-phase four-wire shunt active power filter (APF) is an effective method to solve the harmonic problem in three-phase four-wire power systems. In addition, it has two possible topologies, a four-leg inverter and a three-leg inverter with a split-capacitor. There are some studies investigating DC-link voltage control in three-phase four-wire APFs. However, when compared to the four-leg inverter topology, maintaining the balance between the DC-link upper and lower capacitor voltages becomes a unique problem in the three-leg inverter with a split-capacitor topology, and previous studies seldom pay attention to this fact. In this paper, the influence of the balance between the two DC-link voltages on the compensation performance, and the influence of the voltage balance controller on the compensation performance, are analyzed. To achieve the balance between the two DC-link capacitor voltages, and to avoid the adverse effect the voltage balance controller has on the APF compensation performance, a new DC-link voltage balance control strategy for the three-phase four-wire split-capacitor APF is proposed. Representative simulation and experimental results are presented to verify the analysis and the proposed DC-link voltage balance control strategy.

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Section: Introductionmentioning

confidence: 99%

DC-Link Voltage Balance Control in Three-phase Four-wire Active Power Filters

Wang¹,

Guan²,

Xie³

et al. 2016

Journal of Power Electronics

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“…A significant part of this kind of applications is the control stage of power converters and current controller, which is indispensable for the proper operation of such equipment. In effect, important research works in this field have been focused on improved hardware to implement the digital controllers [4][5][6]. This work mainly deals with the FPGA digital implementation of SAPF controllers, which is an important part of industrial control systems.…”

Section: Introductionmentioning

confidence: 99%

An Efficient FPGA based Real-Time Implementation Shunt Active Power Filter for Current Harmonic Elimination and Reactive Power Compensation

Charles¹,

Vivekanandan²

2015

Journal of Electrical Engineering and Technology

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-This paper proposes a new approach of Field Programmable Gate Array (FPGA) controlled digital implementation of shunt active power filter (SAPF) under steady state and dynamic operations. Typical implementations of SAPF uses microprocessor and digital signal processor (DSP) but it limited for complex algorithm structure, absence of feedback loop delays and their cost can be exceed the benefit they bring. In this paper, the hardware resources of an FPGA are configured and implemented in order to overcome conventional microcontroller or digital signal processor implementations. This proposed FPGA digital implementation scheme has very less execution time and boosts the overall performance of the system. The FPGA controller integrates the entire control algorithm of an SAPF, including synchronous reference frame transformation, phase locked loop, low pass filter and inverter current controller etc. All these required algorithms are implemented with a single all-on chip FPGA module which provides freedom to reconfigure for any other applications. The entire algorithm is coded, processed and simulated using Xilinx 12.1 ISE suite to estimate the advantages of the proposed system. The coded algorithm is also defused on a single all-on-chip Xilinx Spartan 3A DSP-XC3SD1800 laboratory prototype and experimental results thus obtained match with simulated counterparts under the dynamic state and steady state operating conditions.

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“…Nonetheless, few studies investigate APF DC-link voltage control specifically. Existing literature mainly focuses on DC-link capacitor minimization [12], [13], DC-link voltage control strategy [14], [15], minimum DC-link voltage design [16]- [18], and adaptive strategies for DC-link voltage reference value [19]- [22]. Such studies seldom emphasize the inherent relationship between DC-link voltage controllers and the steady-state compensation performance of APF.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Design of DC-link Voltage Controller in Shunt Active Power Filter

Wang¹,

Xie²,

Liu³

2015

Journal of Power Electronics

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This study investigates the inherent influence of a DC-link voltage controller on both DC-link voltage control and the compensation performance of a three-phase, four-wire shunt active power filter (APF). A nonlinear variable-parameter DC-link voltage controller is proposed to satisfy both the dynamic characteristic of DC-link voltage control and steady-state compensation performance. Unlike in the conventional fixed-parameter controller, the parameters in the proposed controller vary according to the difference between the actual and the reference DC-link voltages. The design procedures for the nonlinear voltage controller with variable parameters are determined and analyzed so that the proposed voltage controller can be designed accordingly. Representative simulation and experimental results for the three-phase, four-wire, center-spilt shunt APF verify the analysis findings, as well as the feasibility and effectiveness of the proposed DC-link voltage controller.

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Adaptive DC-link Voltage Control for Shunt Active Power Filter

Cited by 17 publications

References 27 publications

DC-Link Voltage Balance Control in Three-phase Four-wire Active Power Filters

DC-Link Voltage Balance Control in Three-phase Four-wire Active Power Filters

An Efficient FPGA based Real-Time Implementation Shunt Active Power Filter for Current Harmonic Elimination and Reactive Power Compensation

Analysis and Design of DC-link Voltage Controller in Shunt Active Power Filter

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