ADI's latest measurement IC reactive energy measurement accuracy reaches 0.1%
Many people at the Copenhagen Conference held recently called it "the last chance for mankind to save the planet." At once, our eyes were focused on the surrounding environment, of course, including our use of electrical energy, wind energy, and solar energy.
The significance of the smart grid lies here. More analysts pointed out that in the next five years, with the growth of smart grid deployment, the number of smart meters installed in the world will reach 200 million. In China, a US $ 596 billion economic stimulus plan related to smart grids is under implementation, and it is expected that 170 million smart meters will be deployed in the next 3 to 5 years. Part of the US government ’s funding for upgrading its own power grid is to enable 13% of US households (18 million households) to install smart meters within the next three years. In Europe, Italy and Sweden have completed the deployment of advanced metering infrastructure (AMI), replacing all common meters with smart meters. France, Spain, Germany and the United Kingdom are expected to complete AMI deployment within the next 10 years.
Ronn Kliger, Director of Energy, Analog Devices
In this regard, ADI has recently established a dedicated energy department led by Ronn Kliger to meet the growing technological demands for energy metering, substation automation and some emerging applications, such as solar / wind power generation, energy storage, etc. "As a key supplier of power grid equipment manufacturers, ADI has a deep understanding of customer needs," Kliger said. "We provide support to global customers who are constantly upgrading their products to adapt to the emerging smart grid system development trends. ADI It is clear that smart grids are far more complex than simple smart meters, and we can provide solutions that cover the entire power generation, transmission, and distribution chain. "
Recently, ADI launched four new high-precision energy measurement ICs-ADE7878, ADE7868, ADE7858, and ADE7854, which can be used to improve the accuracy and performance of commercial, industrial, and residential smart meters. Smart meters can accurately measure the amount of electricity consumed or generated, and communicate with the local power department to achieve energy monitoring, billing and other functions. ADI's latest energy metering IC can be used to develop smart meters to improve the user's billing accuracy for power companies, achieve more advanced power quality monitoring, and reduce operating costs.
"These new devices are of great significance. In terms of total active and reactive energy measurement, their accuracy and dynamic range exceed the requirements of the Class 0.2 specification of the energy meter industry. These four new devices can also achieve 0.1% accuracy at the same time. Measuring reactive power and active power is the industry's first. In addition, one of the products also has a fundamental power measurement function, which is essential for power quality monitoring, "said ADI Ronn Kliger.
High-precision, three-phase energy measurement IC
ADI's new ADE7878, ADE7868, ADE7858, and ADE7854 high-precision energy measurement ICs are designed for multi-phase configurations, including three-wire and four-wire, Y-type and Δ-type. In the dynamic range of 1000: 1, they can provide 0.1% accuracy for active and reactive energy measurement, which is the industry's first; in the dynamic range of 3000: 1, they can provide 0.2% for active and reactive energy measurement. Precision. These new products can also provide 0.1% accuracy for current and voltage rms measurements within a 1000: 1 dynamic range.
In addition to measuring the energy of each phase and neutral, the ADE7868 and ADE7878 can also monitor power quality parameters, such as SAG, peak, period, angle measurement, and phase sequence. Another industry first is that while maintaining normal operation, the ADE7868 and ADE7878 have various anti-theft functions to ensure normal operation, which can reduce the time for on-site help and meter maintenance.
It is reported that the ADE7878, ADE7868, ADE7858, and ADE7854 energy measurement ICs are now available in samples, all in a 40-lead LFCSP package (lead frame chip scale package).
Features and quotations
Incremental Encoder is commonly used, and Absolute Encoder is used if there are strict requirements on position and zero position. Servo system should be analyzed in detail, depending on the application situation. Commonly used incremental encoder for speed measurement, which can be used for infinite accumulation measurement; Absolute encoder is used for position measurement, and the position is unique (single or multiple turns). Finally, it depends on the application situation and the purpose and requirements to be realized.
Incremental Linear Encoders,Linear Optical Encoder,Linear Position Encoder,Encoder Bearing Tester
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