Crimped Woven Mesh Material :
High carbon steel:45#,50#,55#,60#,70#,65Mn,72A,Stainless steel 304,321,316,2205,2507
Wire diameter: 1.37mm-12.7mm,Our finished wire is inspected by third party SGS,
Tolerance+_0.03mm .
Aperture/Opening:from 2mm to 100mm,tolerance +-3%
1.Aperture error:<3%,which is better than international standards ;
2.Wire diameter error :+-3%;
3.Diagonal error:<9mm every 2m .
Weaving Types :double crimped
screen,single intermediate crimp screen,double intermediate crimp
screen,lock crimp screen,flat top screen,pressure welded screen .
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With the rapid development of the energy transformation in Germany, a large number of new energy sources and distributed generation and grid connection, as well as increasing demand for electricity, have brought great impact on the grid. How to mobilize the enthusiasm of electricity customers including producers of electricity users to participate in energy saving and emission reduction, how to realize the demand side management and demand response technologies on the electricity side, and how to collect more real-time electricity generation side and electricity consumption information to deal with The unpredictability of large amounts of new energy generation has become an important issue in the development of the energy internet. The emergence of new smart metering systems has made it possible to achieve these goals.
Regulatory standards development path Under the guidance of the European Commission’s 20-20-20 policy, EU countries are actively engaged in the research and application of smart grids to deal with a large number of new energy sources and distributed generation grids, and the increasing demand for electricity. Impact on the power grid. At the same time, the emergence of demand-side management and demand-corresponding technologies on the consumer side has also become an indispensable new type of smart grid in the future, in order to increase the efficiency of electricity consumption and reduce energy consumption.
The smart meter measurement system is usually regarded as one of the foundations for realizing the smart grid, especially to realize the advanced technology of the future demand side. The smart meter measurement system is also an important part of the concept of developing and promoting the smart grid in various countries. However, at present, what is the development status of the German smart meter measuring system technology and what are the market promotion status and bottlenecks?
In fact, just as there are differences in the recognition and definition of smart grids in various countries and regions of the world, there is no consensus in the industry for smart meter measurement systems. Germany began to formulate relevant regulations and standards from 2009, defined more clearly the technical requirements of smart meter systems in line with its own national conditions, and specifically made clear regulations for information security technologies. The front.
The German Information Security Agency (BSI) has developed technical guidelines and information security standards for smart metering systems at the national level. The technical guidelines propose intelligent measurement systems based on smart meter gateways, based on advanced two-way communication systems, connecting measurement instruments (electric meters, gas meters, water meters, etc.), smart meter managers, electricity markets, and home controllers, and define basic Functional and communication modes and interoperability requirements.
On the one hand, it can provide feedback on power usage information and timely update of power price information for electricity customers, help electricity customers improve power consumption efficiency and optimize energy consumption, realize intelligent control of demand side and user side, and achieve remote automatic meter reading; On the one hand, it provides a large number of electricity customers and grid status information for grid companies and power sellers, and can integrate distributed intelligent control terminals to achieve control and management of power-side and distributed generation, and provide support for optimizing grid operation and marketing modes. , further promote the construction of smart grid.
This lays the foundation for the definition of a unified, interoperable smart meter measurement system and is currently a unified technical guideline accepted by the German industry. In particular, the definition of the control function makes the German smart meter measurement system beyond the boundaries of the traditional definition, making its application prospects more broad.
On this basis, the German Technical Institute of Electrical Engineers (VDE) under the power grid technology forum FNN combined with the German major power companies and energy measurement related companies, from the industry point of view for the smart meter system features defined multiple technical specifications. Especially on the basis of system interoperability, it proposes replaceability and provides support for accelerating the promotion of smart meter systems. On this basis, the DKE, the standard development organization under VDE (which is the institution that sets the famous DIN standard), is currently working on the definition of a true technical standard.
Smart Meter Promotion Legal Framework The European Commission issued relevant guidance policies and legal frameworks in 2009 and 2012, and proposed suggestions for the introduction of smart meter measurement systems in various EU Member States to help electricity customers actively participate in the electricity market and increase electricity use. effectiveness. At the same time, all member states are required to complete an outreach program covering 80% of their domestic customers by 2020, subject to cost-effectiveness. However, the lack of unified guidance and dispatch among EU countries has created obstacles for the development of a unified international standard.
Under the EU's unified legal framework, Germany introduced regulations related to the promotion of smart metering measurement systems in the new energy economic law in 2011. In particular, the scope of promotion and the role of the relevant responsible person have been clarified, and regulations have been made for new construction or implementation in Germany. Large-scale maintenance of houses, electricity customers with annual electricity consumption exceeding 6,000 kWh, newly installed new energy power generation equipment and cogeneration facilities with capacity exceeding 7 kW, all technical and economical permitted buildings, smart metering must be installed system.
In Germany, as early as 2008, the measurement access regulations were established, clarifying the responsibilities and roles of the responsible persons. These two legal provisions have laid a legal framework for the promotion of smart meter measuring systems in Germany.
The status quo of market promotion and commercialization is different from that of grid intelligence. The smart meter measurement system is mainly installed on the demand side. The primary purpose of the meter measurement system is to serve electricity customers. However, due to the collection, processing, and use of customer-related information, the promotion of Difficulty.
In the EU, Italy and Sweden have already completed the promotion of the country, and the United Kingdom, the Netherlands, and France have begun comprehensive promotion projects. Although these countries have implemented and promoted earlier than Germany, they have not fully considered information security and technical standardization, and their promotion experience has proved that this is a very important link.
Information security and technical standardization pose great challenges to the market promotion and commercial use of smart meter measurement systems. Once this link occurs even if it is an individual issue, it will have a great negative impact. The German government and relevant agencies have carefully started to formulate relevant domestic laws and regulations and define comprehensive technical standards, guide policy and technical guidance, and help promote the smooth implementation of the promotion plan.
In 2013, in accordance with the requirements of the European Commission, the German Ministry of Economic Affairs entrusted consulting companies with an in-depth analysis of market prospects, promotion costs and effectiveness of the promotion of smart meter measuring systems in Germany, and published a cost-benefit analysis report. The report suggested that the German government should amend the current guidance policy to phase out and force all new energy generation equipment to install smart metering systems in order to expand the scope of promotion, so as to achieve good economic benefits. The German new coalition government, after comprehensively considering the investigation report and opinions of all parties, is actively preparing new regulations and formulating preferential policies, such as measurement system regulations, promotion regulations, demand-side management regulations, and related departments, to further standardize and coordinate the promotion plan. Implementation.
However, the rigorous and methodical approach of the Germans has often brought challenges and even obstacles to the promotion of new technologies. The promulgation of relevant laws and regulations and the formulation of technical standards are usually a very long process in Germany. Many parties need to be seen through communication and discussion, and reach an agreement in consideration of the interests of all parties. This lengthy negotiation process and waiting for the industry to carry out product research and development and marketing have a great impact, and sometimes even fatal. With regard to laws and regulations and possible preferential policies that are not yet certain, the attitude of the German industry is very different. Most power companies and manufacturers are still waiting to see.
In general, a unified technical standard can help companies better formulate R&D plans and marketing to help reduce costs. However, the current German technical specifications have set a high technical threshold for the information security and functionality of smart meter systems, and they are still being further improved. This puts forward the relevant products to the German manufacturer, has increased many difficulty to the German power grid company to put into use, at the same time also increased the cost and the expense.
Although there are difficulties and uncertainties, German RWE, EnBW and other leading companies have begun to deploy smart meter systems in large scale to expect to seize the bridgehead of technology and market after the implementation of the policy.
Standards come together to promote smart meters in Germany
[China Instrument Network Industry Focus] The emergence of a new type of smart meter measurement system has realized the collection of electricity consumption information, met the demand-side management of the electricity side and other technologies, and has become an indispensable tool for the development of smart grids in all countries. As an industrial powerhouse, Germany's every move in industrial development has attracted attention, and Germany's promotion of the smart meter market is worthy of reference for many developing countries.