Semitech’s GS18 SoC, which can operate reliably in noise prone environments, has played an integral role in the deployment of LangFang Gao Shan’s smart grid products. The GS18 adapts to noisy environments, choosing the most effective transmission frequency.
Mr. Chen, Chairman of LangFang Gao Shan, says, “Reliable communications on the China power grid are notoriously difficult due to noise and attenuation. Working with Semitech and Harbin University, we architected a technology that enables the most reliable power line communications available.”
Semitech’s GS18 uses modulation and signal processing technology that is adjustable in speed and frequency to deliver highly robust and reliable communications. It also employs a Multi Access scheme to provide robustness and the ability to communicate with multiple nodes simultaneously.
Mike Holt, vice president of marketing and sales for Semitech, notes, “Working with LangFang Gao Shan and Harbin University has enabled Semitech to develop, deploy and prove in volume a much more robust power line communications solution.”
LangFang Gao Shan provides medium voltage smart grid measurement monitoring and control systems that support the entire smart grid control processes, from data management to integration into existing IT structures. These products include intelligent measurement monitoring and control distribution terminal carrier and high voltage three-phase intelligent power meters.
The intelligent monitoring and control distribution terminal carrier measures voltage and current on the MV grid and communicates the measurements to the utility using the Semitech GS18 PLC chip. The system is used for remote meter reading, remote load control, pricing and user-side management, and independent accurate measurement of all voltage phases.
Unique capabilities of Semitech’s GS18 include programmable modulation to improve communications reliability; high data transfer rates in noisy environments; user selectable between BPSK modulation for higher carrier voltages and higher noise immunity; and QPSK modulation.
Headquartered in Singapore, Semitech Semiconductor provides the semiconductor devices that enable the transformation of the electricity grid into a smart grid. For more information, visit www.semitechsemi.com.