Non-invasion power monitoring with 120% harvesting energy improvement by maximum power extracting control for high sustainability power meter system

Huang, Tzu‐Chi; Du, Ming-Jhe; Yang, Yao-Yi; Lee, Yu-Huei; Kang, Yu-Chai; Peng, Ruei-Hong; Chen, Ke-Horng

doi:10.1109/cicc.2012.6330674

Cited by 10 publications

(2 citation statements)

References 5 publications

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“…Prior studies, for example [23,25,52,57], have presented numerous optimized designs for different sources and characteristics; these circuits can only be used on the specific sources they are designed for. Prior studies, for example [23,25,52,57], have presented numerous optimized designs for different sources and characteristics; these circuits can only be used on the specific sources they are designed for.…”

Section: Impedance Matchingmentioning

confidence: 99%

Energy‐Harvesting Systems

Chen¹

2016

Power Management Techniques for Integrated Circuit Design

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Research on energy-harvesting applications has gained importance in the last decade [1][2][3][4][5][6][7][8][9][10]. The most commonly discussed applications include wireless sensor nodes for healthcare, embedded or implanted sensor nodes for medical applications, tire pressure-monitoring systems for automobiles, battery-charging devices for long-sustainability systems, security or guard systems for homes, and environmental condition-monitoring systems. Figure 8.1 [11] shows a wireless healthcare bio-wireless sensor network (WSN) in a hospital used to monitor the vitals of patients [12]. Each patient wears several sensor nodes in several small monitoring systems, such as an electrocardiogram (ECG). Each system is responsible for specific physiological signals. The central health server can collect the sensed data through wireless communication.The popularity and widespread use of WSNs may be ascribed to several factors. The first factor is the progress of silicon technology in micrometer and even down to nanometer scales. According to Moore's law [13], the size of transistors on integrated circuits follows a decreasing trend of 0.7× every one and a half years. The gate count on a chip, as well as the operating speed and processing performance, increase significantly. The supply voltage on a silicon chip is also greatly reduced because of thinner oxides in advanced nanometer technologies. Smaller transistors or passive components result in lower parasitic effects and, thus, further reduce power loss. For a scale reduction by factor α (α > 1), the power consumption of a shrunk circuit that performs the same task can be reduced by (1/α) 3 [1]. The second factor is the progress of RF technology. RF technologies, especially low-power transmission networks such as Zigbee [14] and Bluetooth low energy (BLE) [15], facilitate data transmission and WSN construction. The third factor is the system integration of SoC and a heterogeneous system. A highly integrated SoC greatly decreases the requirements of external components, thereby reducing the volume and weight of the entire system. Heterogeneous integration technologies integrate Power Management Techniques for Integrated Circuit Design, First Edition. Ke-Horng Chen.

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Section: Impedance Matchingmentioning

confidence: 99%

Energy‐Harvesting Systems

Chen¹

2016

Power Management Techniques for Integrated Circuit Design

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“…It is a miniature device, called energy coupler, capable to deliver up to 10mW of power to a 50Ω load, when placed nearby a conductor of a power distribution system, where the current ranges between 70A -1000A. Finally, two interesting examples of single sensor self-powered meters are given in [21] and in [22]. The first one is based on a novel dual wire current transformer and exploits a wireless monitoring system to perform current measurement and a magnetic energy harvester realized on-chip to self-sustain its operations.…”

Section: Related Workmentioning

confidence: 99%

Non-intrusive Zigbee power meter for load monitoring in smart buildings

Balsamo

Gallo

Brunelli

et al. 2015

2015 IEEE Sensors Applications Symposium (SAS)

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Energy efficiency in smart buildings requires distributed sensing infrastructure to monitor the power consumption of appliances, machines and lighting sources. The analysis of current and voltage waveforms is fundamental for gathering diagnostic information about the power quality and for reducing power wastage. Moreover, it enables Non-intrusive Load Monitoring (NILM), which is the process of disaggregating a household's total electricity consumption into its contributing appliances, by analysing the voltage and current changes. In this paper, an innovative full Energy-neutral (i.e. battery free) and Non-intrusive Wireless Energy Meter (NIWEM) is presented to measure current, voltage and power factor. As key features, the NIWEM is completely non-invasive and it can self-sustain its operations by harvesting energy from the monitored load. It also features a standard (Zigbee) wireless interface for communication with the smart-building system. Experimental results have confirmed that complete energy sustainability can be achieved also with very low-power loads.

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