Government policies helping to drive smart grid growth, says GlobalData

A number of governments are increasingly viewing smart grid technology as a strategic infrastructural investment that will enable their long-term economic prosperity and help them to achieve their carbon emission reduction targets. This need to mitigate climate change for renewable energy development is driving smart grid initiatives across the world, according to GlobalData, a leading data and analytics company.

The EU introduced a strategic energy technology plan in 2006 for the development of a smart electricity system over the following 30 years. If the EU is to meet its 2020 targets, which are increasing energy efficiency by 20%, increasing its share of renewable energy by 20% and reducing its greenhouse gas (GHG) emissions by 20%, it must modernize and liberalize its aging electricity grid, create economies of scale for renewable energy, and promote consumer efficiencies.

Every country, when creating a smart grid roadmap or implementing a smart grid, creates its own Smart Grid Task Force or Smart Grid Asociation with the major stakeholders such as utilities, key equipment manufacturers, electricity market participants and government bodies. International agencies along with the EU have developed standards aimed at helping countries to develop their own individual standards.

Several countries already have net energy metering protocols and equipment in place, and a number of countries are exploring the technology and mechanism. In the US, 45 states and 4 territories have mandatory net metering rules available for solar and wind renewable sources. The number of net metering customers in the US increased from 0.16 million in 2010 to over 1.83 million in 2017. Under advanced metering infrastructure, as of 2017, the country installed around 76 smart meters and is expected to install over 90 million by 2020. In the US, there are now more than 16,000 publicly accessible charging stations, up from 500 in 2008, giving electric car owners more confidence in the range of their vehicles.

In 2016, ANEEL implemented a net metering system in Brazil that would enable customers to connect their micro-generation system to the Brazilian power grid with ease. By May 2017, over 10,000 PV systems had been installed in Brazil under the net metering scheme with a combined capacity of 78 MW. ANEEL is aiming to reach 1.2 million PV systems under net metering by 2024.

India has a target of installing 130 million smart meters by 2021 under Smart City Initiatives. The government has made it mandatory to install the smart meters for consumers whose monthly electricity consumption was 500 units and more at the earliest by December 2017 and consumers with the monthly consumption above 200 units by 2019.

In 2013, China overtook the US and became the largest smart grid market. The country invested $4.3bn in smart grids, which accounted for more than one-quarter of the $14.9bn spent globally in that year. China has the largest number of NEV charging stations in the world with 214,000 public NEV charging points as of 2017. The number of public charging points in China grew by around 51% in 2017. From January to August 2017, over 282,000 electric cars were registered.

Chinese OEMs are likely to emerge as leaders in the pure EV market and is becoming the target of many foreign investors in smart grids. General Electric, Siemens, ABB, and several other enterprises are cooperating with domestic Chinese partners to expand their smart grid business in China.

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Deep learning ASIC is in production qualification

Independent FinFET-class ASIC, custom IP and 2.5D packaging provider, eSilicon, has announced that the deep learning ASIC that taped out last September has moved to production qualification.

The ASIC includes custom pseudo two-port memories designed by eSilicon, TSMC’s Chip on Wafer on Substrate (CoWoS) technology, 28G SerDes, and four second-generation High-Bandwidth Memory (HBM2) stacks. eSilicon’s end-to-end 2.5D/HBM2 structure includes 2.5D ecosystem management, silicon-proven HBM2 PHY, ASIC physical design, 2.5D package design, manufacturing, assembly and test.

The CoWoS interposer is over 1,000 square mm and contains over 170,000 microbumps. The design has successfully passed test bring-up and is in final qualification, reports eSilicon. Four-high and eight-high HBM stack versions are in qualification. This design is in the industry vanguard of ASICs targeting deep learning applications, says eSilicon.

The 2.5D/HBM2 single package implementation gives the ASIC advantages such as orders of magnitude higher total bandwidth in a much smaller board footprint. Another benefit, says eSilicon, is that it affords highly parallel connections to memory stacks inside the package for fast access and a “significant” reduction in power consumption.

“This design greatly expands the possibilities for deep learning, and we are delighted to enter final qualification,” said Ajay Lalwani, vice president, global manufacturing operations at eSilicon. “TSMC’s 2.5D CoWoS packaging technology has been a key differentiater for this advanced design.”

As well as complex FinFET-class ASICs, custom IP and advanced 2.5D packaging solutions, eSilicon provides complete 2.5D/HBM2 and TCAM platforms for FinFET technology at 14,16 and 17nm as well as SerDes, specialised memory compilers and I/O libraries. It has a patented knowledge base and optimisation technology that it provides to customers serving the high-bandwidth networking, high-performance computing, artificial intelligence and 5G infrastructure markets.

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Picture credit – TSMC foundry

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Multi-phase PMICs offer efficiency in “smallest” footprint, says Renesas Electronics

Three power management ICs (PMICs) from Renesas Electronics are claimed to offer the highest power efficiency and smallest footprint for application processors in smartphones and tablets. The ISL91302B, ISL91301A, and ISL91301B multi-phase PMICs also deliver power to artificial intelligence (AI) processors, FPGAs, and industrial microprocessors, and can power the supply rails in solid state drives (SSDs), optical transceivers, and a range of consumer, industrial and networking devices.

The ISL91302B dual/single output, multi-phase PMIC provides up to 20A of output current and 94 per cent peak efficiency in a 70mm2 package that is more than 40 per cent smaller than competitive PMICs, says Renesas.

The ISL91301A triple output PMIC and ISL91301B quad output PMIC deliver up to 16A of output power with 94 per cent peak efficiency. The programmable PMICs leverage Renesas’ R5 Modulation Technology to provide fast single-cycle transient response, digitally tuned compensation, and high 6.0MHz (maximum) switching frequency during load transients. Power supply designers can design boards with 2.0 x 2.0mm, 1.0mm low profile inductors, small capacitors, and only a few passive components.

Renesas PMICs do not require external compensation components or external dividers to set operating conditions. Each PMIC dynamically changes the number of active phases for optimum efficiency at all output currents. Their low quiescent current, light load efficiency, regulation accuracy, and fast dynamic response extend battery life for mobile devices.

The ISL91302B PMIC is available in three factory configurable options for one or two output rails. The dual-phase configuration supports 10A from each output, the triple-phase configuration supports 15A from one output and 5.0A from the second output and the quad-phase configuration supports 20A from one output. Input supply voltage range is 2.5 to 5.5V with I2C or SPI programmable Vout from 0.3 to 2.0V. The PMIC provides 75-microA quiescent current in discontinuous current mode (DCM). Integrated telemetry ADC senses phase currents, output current, input/output voltages, and die temperature, enable PMIC diagnostics during operation. Protection features include soft-start and fault protection against under-voltage, over-voltage, over-current, over-temperature and short circuit conditions.

The ISL91301A and ISL91301B PMICs are available in two factory-configurable options. The ISL91301A is a dual-phase, three output rail device, configured as 2+1+1 phase. The ISL91301B is a single-phase, four output rail device, configured as 1+1+1+1 phase. Current is 4.0A per phase for 2.8 to 5.5V supply voltage and 3.0A per phase for 2.5 to 5.5V supply voltage. The PMICs have I2C or SPI programmable Vout from 0.3 to 2.0V to provide 62-microA quiescent current in discontinuous current mode. Renesas reports ±0.7 per cent system accuracy for -10 to +85 degree C with remote voltage sensing. The ISL91301A and ISL91301B PMICs have soft-start and fault protection against under-voltage, over-voltage, over-current, over-temperature and short circuit conditions.

The ISL91302B PMIC is available now in a 2.551 x 3.670mm, 54-ball WLCSP package. The ISL91301A triple-output PMIC and ISL91301B quad-output PMIC are available now in 2.551 x 2.87mm, 42-ball WLCSP packages.

http://www.intersil.com/products

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Static var generator boosts energy efficiency and ensures load balancing

For industrial grids and large commercial buildings, TDK has developed the Epcos PQvar, modular static var generator for active, stepless power factor correction and load balancing.

It has a fast response time of less than 15 milliseconds and a dynamic reaction time of 50 micro seconds and offers significantly faster compensation than conventional systems, claims TDK. The Epcos PQvar is suitable for the active compensation of both inductive and capacitive loads and can achieve a power factor of 0.99. At the low-voltage level PQvar is designed for 400 and 690V supply systems. In these voltage classes, individual modules with outputs of between 30 and 200kvar are available, as well as systems for up to 880kvar per compensation cabinet.

The targeted use of power factor correction systems can significantly improve energy efficiency as the power losses in the electrical transmission and distribution network are significantly reduced and, the CO2 emissions for generating wasted power are avoided. Transformers and the power transmission and distribution networks can be used more efficiently, says TDK.

Using advanced multi controllers (AMC), the PQvar system can be combined with conventional passive low-voltage compensation stages. The medium-voltage level is covered by systems for 6.0, 10 and 35kV. The modules are designed for outputs of between 2000 and 12,000kvar. All modules are available for three-phase grids with or without neutral conductors. Depending on the output and size, the modules are designed as slide-in units for control cabinets and systems for wall mounting (low-voltage) or as control cabinet systems (medium-voltage).

TDK is an electronics company based in Tokyo, Japan. It was established in 1935 to commercialise ferrite, a key material in electronic and magnetic products. TDK’s portfolio includes passive components, such as ceramic, aluminum electrolytic and film capacitors, ferrites and inductors, high-frequency products, and piezo and protection components, as well as sensors and sensor systems and power supplies. These products are marketed under the product brands TDK, Epcos, InvenSense, Micronas, Tronics and TDK-Lambda. Further main product groups include magnetic application products, energy devices, and flash memory application devices. TDK focuses on information and communication technology and automotive, industrial and consumer electronics.

http://www.global.tdk.com

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