Chip innovation can promote the performance of electronic energy meter

Electronic energy meter market demand rose steadily, while the chip innovation driven power meter performance. In the face of some provinces and municipalities to specify the practice of foreign brands in the power sector, local energy meter chip suppliers called for the creation of a fair competitive environment.

The market is steady

Experienced the transformation of urban and rural power grid climax, in recent years, the demand for domestic energy meter is declining year by year, but the next two years, the market demand will be relatively stable." Fei Yuhang, member of the National Committee for standardization of electrical instrumentation. He further said that although the meter overall market tends to be stable, but the electronic energy meter demand will rise steadily, caused by two reasons: one is the growth of the market a few years ago the electronic installation can form a simple function, has now begun upgrading; two is abroad in recent years, electronic and electrical energy meter market has expanded, so that the export volume of domestic enterprises increased.

At present, the electronic energy meter accounts for 20% to 30% of the total energy meter Market share. Experts predict that the electronic watt hour meter will gradually replace the mechanical energy meter, therefore, over the years the electronic energy meter has been around the user needs to innovate, to provide users with more and more added value. Fei Yuhang believes that the first two or three years of electronic watt hour meter innovation is mainly concentrated in the multi rate electronic watt hour meter; and the latest energy meter innovation embodied in the variety and function of the replacement. For example, in recent years, the rapid development of the rate of residents at the same time, more ordinary residents with the meter to achieve automatic meter reading function. Again, in order to prevent the theft of electricity, the individual provinces and cities are gradually stopped using the pulse stepper motor power meter, and turned to digital LCD display. In addition, the prepaid table needs to pick up, the product to high reliability (using CPU card and data exchange authentication module) and multi-function (such as multiple rates, etc.). Jiangsu Lin Yang Electronics Co. Ltd., deputy chief engineer Lu Hanxi believes that due to the users of electronic anti-theft function of electric energy meter has been more attention, while anti theft should start from each measuring principle, hardware, software and product structure and other aspects, which is to promote the electric energy meter has set a new reason; in addition, in to improve the production efficiency of electronic energy meter, the industry in innovation, such as the realization of functions such as automatic calibration on a chip. Zhuhai fire force measuring instrument business department director Chen Jiang said, in addition to the original electricity metering, these years, electronic energy meter is also increasing in the measurement of several parameters, such as the user that electronic energy meter can provide the measurement of the harmonic parameters of power network, effective detection. And the director of the Institute of technology, said Cao Guihua, electronic energy meter analysis of the growing demand for data, and requires an increase in the event log function.

Chip innovation speed

The innovation of electronic energy meter also led to the development of the corresponding chip. The industry generally believes that the electric energy meter chip will be toward the reliability, accuracy, higher integration, the direction of the development of more measurement parameters, and continue to solve the key issues such as the set of copy technology.

Zhuhai Juli Chen Jiang said, they launched the first batch of single-phase multifunctional electric energy metering chip ATT7023, which is a measurement and MCU integrated chip, SOC chip to solve the interference problem facing usually. And they are a new product - three phase multi-function chip ATT7022B is based on the needs of the customer integrated 7 A/D, more than the general measurement chip all the way to prevent theft of A/D. In addition, according to the requirements of the user, the chip also adds an important function - harmonic measurement, for the power sector to provide a simple and low cost monitoring means. Shanghai belling company launched in March this year, based on 0.35 micron and 8 inch mixed signal CMOS technology of the third generation chip energy meter series of new products. Beiling chip energy metering product manager Han Ming said that they recently developed BL6511 three-phase active power measurement chip, is currently on the market the same chip in the lowest static power consumption. In addition, anticreep threshold design of this product is very reasonable, improve the measurement accuracy.

Cirrus Logic industrial products vice president and general manager John J.Paulos said that the new product CS5466 power single-phase their energy meter can accurately measure the applied current is very weak, and identified some of the residential environment of small household appliances power usage. The company is about to launch a new energy metering chip to meet the market demand for new computing engine expansion.

In addition to the original market measurement products suppliers, ST also entered the field of energy meter measurement, in January this year launched the first product STPM01. STPM01 can act as an independent at the lower end of the simplest application in electric energy meter, or in the complex electric energy meter used in MCU system peripherals to support remote measurement, based on reactive power measurement, multiple price and anti tampering function. ST also announced the introduction of a three-phase electric energy meter metering products in the short term.

In the main control chip, Wang Ruiyi, general manager of Galaxy Galaxy, Suzhou, said that their GC020X series of power meter master control chip in addition to a highly integrated features, as well as their own technological innovation. For example, they worked with a university to develop a visual design tool for electrical energy meters (PMVDT). Using this design tool can greatly improve the efficiency of programming and energy meter design. In addition, they are very focused on the main control chip structure of the bus and modular, so as to facilitate the user according to the demand to increase or reduce the functional modules.

Shanghai Fudan Microelectronics Limited by Share Ltd