Algorithm for Design of Digital Notch Filter Using Simulation

Naina,; Vinitha, C. S.

doi:10.14569/ijarai.2013.020807

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…This design starts with the transfer function of an analog filter, and then a mapping from s (Analog) to z (Digital) plane results in a general form for an IIR filter with an arbitrary number of poles and zeros Verma (2013) A digital filter can be characterized as a linear time invariant (LTI) discrete system by a constant coefficient difference equation Proakis and Monalakis (2002), Shenoi (2006)…”

Section: Methodsmentioning

confidence: 99%

Computational Analysis of Butterworth and Chebyshev-I Filters Using Bilinear Transformation

Singh

Muhammad

Umaru

et al. 2022

Int. J. Res. Granthaalayah

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Due to the intense demands in advanced telecommunications during the last fifteen years for both higher spectrum band and better accuracy, the digital Infinite Impulse Response (IIR) filter has emerged as the basic component in both digital telecommunication and Digital Signal Processing (DSP) systems. In our research work reported in this paper we conducted meticulous investigation using computer simulation of the digital Infinite Impulse Response (IIR) filter to implement the Butterworth and Chebyshev I procedure with bilinear transformation algorithm aimed at both statistical analysis and computer simulation. Our simulation results reveal the comparative accuracy between digital filters and analog filters of the spectrum response in: i) absolute magnitude, ii) the magnitude in decibels (dB) and iii) phase. Conversely the filter selectivity and gain in decibel scale were numerically obtained.

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Section: Methodsmentioning

confidence: 99%

Computational Analysis of Butterworth and Chebyshev-I Filters Using Bilinear Transformation

Singh

Muhammad

Umaru

et al. 2022

Int. J. Res. Granthaalayah

View full text Add to dashboard Cite

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“…The specifications of each device are shown in Table 3. Single-phase AC/DC converter and single-phase DC/AC inverter switching devices use SiC for efficiency improvement [14,15]. Efficiency -≥97% ≥97%…”

Section: Distribution Equipmentmentioning

confidence: 99%

Application of a DC Distribution System in Korea: A Case Study of the LVDC Project

Kim

Cho

et al. 2019

Applied Sciences

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With the rapid expansion of renewable energy and digital devices, there is a need for direct current (DC) distribution technology that can increase energy efficiency. As a result, DC distribution research is actively underway to cope with the sudden digitization and decentralization of load environment and power supply. To verify the possibility of DC distribution, Korea Electric Power Corporation (KEPCO) Research Institute made a DC distribution system connected with a real power system in Gwangju. The construction of the demonstration area mainly includes design of protection and grounding systems, operating procedures of insulation monitoring device (IMD), and construction of power converters. Furthermore, this paper goes beyond the simulation and the lab testing to apply DC distribution to a real system operation in advance. It is designed as a long-distance low-loaded customer for rural areas and operated by the DC distribution. In addition, safety and reliability are confirmed through field tests of DC distribution elements such as power conversion devices, protection and grounding systems. In particular, to improve the reliability of non-grounding system, the insulation monitoring device was installed and the algorithms of its operational procedures are proposed. Finally, this paper analyzes the problems caused by operating the actual DC distribution and suggests solutions accordingly.

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“…Therefore, it is necessary to control only the output voltage by removing the 120 Hz component in order to improve the input current THD and to stably control the DC link voltage. Therefore, the 120 Hz ripple voltage was removed from the DC link voltage using a notch filter and was used as the feedback value of the voltage controller [11]. The DC link voltage controller output appears as a current command in the AC system and controls the AC current using a current controller.…”

Section: Control Algorithmmentioning

confidence: 99%

High-Efficiency Bi-Directional Single-Phase AC/DC Converter Design and Field Application for LVDC Distribution

Kim

Cho

et al. 2019

Energies

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This paper describes the design and field application of a high-efficiency single-phase AC/DC converter that is suitable for distribution lines. First, an appropriate AC/DC converter was designed in consideration of the environment of the application system. In order to ensure high efficiency and high reliability, we designed an optimum switching element and capacitor suitable for the converter, and the protection element of the AC/DC converter was designed based on these elements. The control function for the power converter suitable for an LVDC distribution system is proposed for highly reliable operation. The AC/DC converter was manufactured based on the design and its performance was verified during application in an actual low-voltage DC (LVDC) distribution grid through tests at the demonstration site. The application to a DC distribution system in an actual grid is very rare and it is expected that it will contribute to the expansion of LVDC distribution. function of an AC/DC converter suitable for an LVDC distribution system is applied for highly reliable power supply when it is connected with the real system. The equipment is manufactured based on the design contents and a performance demonstration is carried out by constructing a system at an LVDC distribution site with the similar environment before being applied to in an actual distribution grid. The on-site demonstration is required to verify the performance of the protection behavior through load fluctuations and line fault simulations. We present the demonstration results from the AC/DC converter to a low-load and low-voltage long-distance DC distribution system. The case of applying the LVDC distribution system to an actual distribution grid is very rare in the world, and the developed power converter, which is applied to DC systems with high efficiency, single phase, and bi-directional power transmission, has differences in its design and performance compared to existing products. Therefore, this paper provides a guideline of design and manufacturing of SiC-MOSFET-based AC/DC converter for LVDC distribution system. It may contribute to related researchers and engineers by presenting various analyses and validation of the actual implementation in LVDC demonstration site. In addition, this paper presents the standard of the design and specifications for the power converter required for the power distribution system by analyzing the AC/DC converter's operation history and results.

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Algorithm for Design of Digital Notch Filter Using Simulation

Cited by 5 publications

References 10 publications

Computational Analysis of Butterworth and Chebyshev-I Filters Using Bilinear Transformation

Computational Analysis of Butterworth and Chebyshev-I Filters Using Bilinear Transformation

Application of a DC Distribution System in Korea: A Case Study of the LVDC Project

High-Efficiency Bi-Directional Single-Phase AC/DC Converter Design and Field Application for LVDC Distribution

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