Reduction of conducted electromagnetic interference by using filters

Kumar, M. Satish; Rani, Aruna

doi:10.1016/j.compeleceng.2018.09.002

Cited by 10 publications

(6 citation statements)

References 18 publications

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“…In this research, the Household Appliances, Electric Tools, and Similar Apparatus Standard (CISPR14-1) was employed [34] to be compared with the results because the CE was measured at the AC side, which met this CISPR14-1 standard. The CISPR14 [34] and EN55014 [15] standards provide approximate values; however, the CISPR 14-1 standard provides a lower value. Therefore, if signals would meet the EN55014, they would meet the CISPR 14-1 as well.…”

Section: The Conducted Emission Measuring Methodsmentioning

confidence: 99%

“…To prove this assumption, the CE of the input and output of the inverter was measured to ensure that the CE results of this work were generated by the grid-connected inverter alone. DC from the PV simulator ( Figure 3a) and single-phase AC from the shielded room ( Figure 3b)-which are the input and output side of the inverter, respectively-were measured to be compared with the EN 55014-1 standard [15]. It was found that the CE from both sides was lower than the one of the EN55014-1 standard within the 150 kHz-30 MHz range.…”

Section: The Conducted Emission Measuring Methodsmentioning

confidence: 99%

“…Table 3. System calibration before test using the EN55014-1 standard [15]. The CE is classified into two modes: the CM, and the DM.…”

Section: The Conducted Emission Measuring Methodsmentioning

confidence: 99%

“…Conducted emission (CE) is the EMI, which is created by the object and is transmitted through the power line. This can potentially cause problems since power cords are connected to the entire power distribution network [14,15]. The CE is categorized as common-mode (CM) and differential-mode (DM) [14,15].…”

Section: Introductionmentioning

confidence: 99%

“…This can potentially cause problems since power cords are connected to the entire power distribution network [14,15]. The CE is categorized as common-mode (CM) and differential-mode (DM) [14,15]. The CM originates from the line and neutral wires of the same magnitude with a direction to the ground wire.…”

Section: Introductionmentioning

confidence: 99%

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The Conducted Emission Attenuation of Micro-Inverters for Nanogrid Systems

Jettanasen

Ngaopitakkul

2019

Sustainability

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Road lighting systems require a significant amount of electric energy. To compensate for the utilized energy, the concept of a nanogrid road lighting system is presented. A solar panel is installed on the top of a lighting pole to generate electric power. In this research, a photovoltaic simulator (PV simulator), which is used to simulate solar behavior such as current, voltage, and power based on temperature and solar irradiance levels, is employed to replace a solar panel. In the nanogrid system, grid-connected and stand-alone micro-inverters are employed to convert the electric power. The inverters comprise switching devices that can generate electromagnetic interference (EMI) when operating, which is harmful to the grid system and the electrical equipment. In general, EMI has been studied and reduced in electrical appliances, which only receive electric power. However, for the nanogrid system, which supplies electricity to the grid system, there is less study on the EMI topic because the usage is still not widespread. In the future, the nanogrid system will be widely used delivering high power directly into the electrical grid system. Therefore, the study and attenuation of EMI in the nanogrid system are very promising. Conducted emission (CE) is one form of EMI that flows through a cable connecting several appliances in the frequency range of 150 kHz to 30 MHz. CE of grid-connected and stand-alone micro-inverters have high levels in the low-frequency range between 150 kHz–5 MHz and then decreases steadily. CE attenuation is important for this inverter in a solar power system. This research studies the effect of CE mitigation on the nanogrid system. The result is compared with the Comité International Spécial des Perturbations Radio (CISPR) 14-1 standard. Finally, the passive EMI filter can reduce CE and meets the CISPR 14-1 standard.

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Section: The Conducted Emission Measuring Methodsmentioning

confidence: 99%

Section: The Conducted Emission Measuring Methodsmentioning

confidence: 99%

“…Table 3. System calibration before test using the EN55014-1 standard [15]. The CE is classified into two modes: the CM, and the DM.…”

Section: The Conducted Emission Measuring Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Conducted Emission Attenuation of Micro-Inverters for Nanogrid Systems

Jettanasen

Ngaopitakkul

2019

Sustainability

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Advanced Sensors and Sensing Systems for Structural Health Monitoring in Aerospace Composites

Ogunleye,

Rusnáková,

Javořík

et al. 2024

Adv Eng Mater

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This review examines the state‐of‐the‐art sensors and sensing technologies employed for structural health monitoring (SHM) in aerospace composites, highlighting the shift from conventional nondestructive evaluation techniques to real‐time monitoring systems. The review discusses the challenges associated with composite materials, such as their anisotropic nature and susceptibility to invisible damage, and how these challenges have driven the improvement of SHM techniques. Fiber‐optic sensors, including interferometric, distributed, and grating‐based sensors, are analyzed for their high sensitivity and multiplexing capabilities, making them suitable for distributed sensing applications. Piezoelectric sensors are evaluated for their effectiveness in both active and passive damage detection methods. At the same time, piezoresistive self‐sensing systems are explored for their potential to integrate sensing directly into composite materials. The review also addresses the challenges encountered in implementing SHM systems. It suggests solutions like protective coatings, advanced data processing algorithms, and modular system design to overcome these challenges. In conclusion, this review provides a comprehensive overview of the current SHM technologies for aerospace composites, underscoring the need for sustained research and development to improve sensor technology, expand data processing capabilities, and ensure seamless integration with aircraft systems, thus contributing to the safety and efficiency of aerospace operations.

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