The hottest smart grid standard is gradually conne

2022-08-11
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Smart electricity standards are gradually connected with international standards

hardware and electromechanical, which is a professional hardware and electromechanical trade platform in China

smart power driven by state power is rising to a national strategy, and the gradual introduction of a series of industry standards has a great impact on the industries involved. On June 29, the "smart electric technology standard system plan" and the "smart electric key equipment plastic film friction coefficient is a major goal (system) development plan" issued by China will revise and supplement the required technical standards between 2011 and 2015, and basically establish the smart electric technology standard system

on July 26, Luan Jun, deputy general manager of State Grid, told the media that China had submitted 18 standard proposals to the International Electrotechnical Commission (IEC), marking the official launch of the internationalization process of smart electricity standards in China

recently, many experts believe that although China's smart electricity standards tend to be in line with international standards, it is still making smart electricity in combination with national conditions, which is of great significance to achieve renewable energy access and improve energy utilization. In addition, the introduction of smart electricity standards has an almost immediate impact on the industry

it was learned from the theme forum of the special event day of the national electric Pavilion of the Shanghai WorldExpo that Guodian has put forward 18 standard proposals to IE C, including user side interface, electric vehicle charging and discharging, intelligent scheduling and other aspects, of which 3 proposals have been approved by IEC

according to Luan Jun, NEC has been a full member of IEC's market strategy Bureau, actively participated in the relevant work of IEC/sm B UHV strategy group and smart power strategy group, and participated in the preparation of IEC smart power standardization roadmap. With the support of the international standardization management organization, the IEC UHVDC Standardization Committee affiliated to the State Grid Corporation of China is actively carrying out its work

Luan Jun said that in terms of UHV AC transmission and HV/UHV DC transmission, CNEEC has put forward eight standard proposals, of which "technical specifications for HVDC grounding electrodes, electromagnetic environment limits of HVDC transmission lines, reliability and availability evaluation of HVDC systems" and other three have been approved by IE C; Ten standard proposals have been put forward in terms of smart electricity user side interface, electric vehicle charging and discharging, intelligent dispatching, etc., including "interactive interface standard for user side equipment and electrical connection", "technical standard for user side power injection", "electric vehicle charging and discharging metering and billing device", etc

at present, NEC has signed strategic cooperation agreements with some scientific research institutions, and preliminarily determined to jointly carry out the research and preparation of standards in four aspects: electric vehicles, IOT and sensors, smart cities and large capacity energy storage systems. "We will continue to work with power generation enterprises, manufacturing enterprises, scientific research institutions, colleges and universities, industry associations and other parties to establish a cross industry communication platform and cooperation mechanism with the support of international standards organizations such as IE C." Luan Jun said

iesi, vice chairman of Iesi, said that Iesi actively participated in the international standardization of smart electricity, such as working closely with NIST (National Institute of standards and Technology) in the United States to develop a standard system to ensure the interoperability of smart electrical equipment and systems. At present, NIST has adopted many IEC international standards. At the same time, Europe is also seeking a similar cooperation mechanism. "In the context of the Dresden cooperation agreement, Europe hopes that IE C can develop standards to achieve interoperability of regional smart electricity." Li Si said to the media present

it is understood that the Dresden cooperation agreement was signed by Cen elec (European Electrotechnical Standardization Committee) and IE C in Germany in 1996. The agreement stipulates the system of "joint planning and parallel voting" for the new standard project by both parties, including: accelerating the publication and common adoption of international standards; Ensure the rational use of resources and ensure that the technical content of the standard is at the international level; Accelerate the standard formulation process to meet the market demand; Jointly plan new projects, etc

however, due to the imbalance between the distribution of primary energy and the development of productivity in China, for example, two-thirds of coal resources are in the north, two-thirds of hydropower resources are in the southwest, land wind energy is concentrated in the northwest, and more than two-thirds of energy consumption is in the central and Eastern regions. In China, wind and solar power generation is mainly developed in remote areas such as deserts and Gobi desert. Local electricity is small in scale and cannot be used locally. It needs to be connected to large electricity through high voltage to realize long-distance transmission and large-scale consumption of electricity. Panjiazheng, an academician of the Chinese Academy of Sciences and the Chinese Academy of engineering, believes that the development of UHV is particularly necessary for China, where the distribution of energy centers and economic centers is uneven

in an interview with the economic information daily, many experts also said that building China's strong smart electricity should not copy the electricity development model of the United States or other developed countries, but should closely combine China's social and economic development and energy endowment characteristics, and take a sustainable development path of electricity that conforms to China's national conditions

Yao Jianguo, deputy chief engineer of the National Academy of electrical Sciences, believes that the formulation of smart electricity standards takes into account the overall situation of our country, At the same time, it also plays a role in leading the technological progress of the industry "China's energy resources and productivity layout are in reverse distribution, so we must realize smart electricity on the basis of strong frame. Without strong frame, intellectualization is empty talk; while smart electricity in Europe and the United States mainly focuses on power distribution, which is because they have a strong frame. We build strong smart electricity in two steps and one step at a time, so we have also digested and absorbed some international standards in the field of power distribution. China builds smart electricity in combination with its national conditions and conditions Electricity, but the ultimate goal is the same as that of foreign countries, which is to achieve flexible access to renewable energy and two-way interaction between users' electricity consumption, so as to improve energy efficiency and achieve low-carbon development. " Yao Jianguo told the economic information daily

standards have a great impact on the industry.

at the end of June, State Grid issued the planning of smart electricity technology standard system of State Grid Corporation of China and the planning of smart electricity key equipment (system) development. According to Wang Yimin, director of smart electricity Department of State Grid Corporation of China, "smart electricity technology standard system planning" is a programmatic document and technical guide for guiding the preparation of smart electricity enterprise standards of State Grid Corporation of China, and it is also an important reference for the preparation of smart electricity industry standards and national standards in China; The development plan for key equipment (Systems) of smart electricity is the action program for the development of key equipment, which can be used as a guide for equipment development of scientific research and manufacturing enterprises, as well as a guiding basis for formulating relevant industrialization development plans

according to Luan Jun, the smart electricity technology standard system consists of "8 professional branches, 26 technical fields, 92 standard series, and several specific standards". It is reported that the eight professional branches refer to "integration and planning, power generation, transmission, transformation, distribution, power consumption, dispatching, and communication information", and each professional branch also contains many specific standards. Taking "power generation" as an example, there are three technical fields in "power generation", involving 12 standard series. For example, the "new energy power generation access technology regulations standard series" includes the issued "wind farm access technology regulations" and "photovoltaic power station access technology regulations", which will be completed this year. Also to be completed this year are "standard series of power consumption information acquisition terminal equipment and system" and "standard series of communication technology specifications on the power side", which will support the construction of intelligent power pilot demonstration projects

in December last year, State Grid formulated and released 12 enterprise standards for smart meters, covering 11 categories and 4 accuracy levels of smart meters; 24 enterprise standards have been issued in terms of power consumption information acquisition system; In terms of electric vehicle charging facilities, 11 enterprise standards have been issued, covering AC charging piles, off-board chargers, charging stations, charging interfaces and charging monitoring systems

Xuejiping, chairman of Zhongtian Technology Co., Ltd., told the media: "in the past, technical standards were often issued after products had been developed and operated, which was relatively backward, which easily led to incompatibility between products." Xue Jiping believes that the release of smart electricity standards has reversed the disadvantage of lagging behind the introduction of standards, avoided the waste of resources and repeated investment, standardized the orderly competition of the industry, and reduced the production costs of enterprises

Li Fusheng, President of XJ Group Co., Ltd., also believes that the greatest influence of smart electricity technology standards can play a guiding role in the whole process of product design and development, construction, operation and maintenance

the industry has learned that smart electricity technology standards not only organically combine IOT technology, interconnection technology and information technology, but also make integration technology more widely used. According to the analysis of insiders, this will cause the existing power transmission and transformation products, especially the equipment once or twice to break through the original boundary and penetrate each other, so that the commonly used switchgear, transmission lines, transformer products are integrated with some intelligent elements, such as real-time monitoring, simple treatment of existing faults, etc. Naturally, this will also break the original market pattern of the equipment manufacturing industry and trigger a new round of market competition in the manufacturing industry under the line path of a certain cross-sectional area

insiders said that the main industries involved in smart electricity include new energy power generation, composite materials, wires and cables, power transformation and distribution, measurement and detection, power system automation, energy storage, electric vehicle access, communication, information, etc. With the smart power construction from planning to actual construction, equipment manufacturers related to smart power will gain considerable market increment, such as Guodian Nari, Siyuan electric, XJ electric and Rongxin shares. It is understood that many equipment manufacturers have taken the lead in doing their homework for the large-scale construction of smart TV

smart electricity or promote the clean energy revolution

according to the national construction goal of strong smart electricity, by 2020, it will be built into "strong smart electricity with ultra-high voltage as the backbone, based on the coordinated development of electricity at all levels, and characterized by informatization, automation, digitization and interaction", so as to realize the upgrading and leap from traditional electricity to efficient, economic, clean and interactive modern electricity

Wu Guihui, chief engineer of the national energy administration, said at the theme forum of the special event day of the national electricity Museum of the Shanghai WorldExpo that the sustainable development of China's future energy needs the support of smart electricity very much, and the "12th Five Year Plan" of the energy industry currently being prepared has included the development of smart electricity as an important content

huzhaoguang, vice president of the National Energy Research Institute, told the economic information daily that in the long run, the development of smart electricity can not only enhance the level of energy security, but also guide and change users' electricity consumption habits, so as to achieve intelligent interaction and achieve the purpose of green energy conservation

Dr. Sun Qiang of the Institute of smart electricity of the National Energy Research Institute analyzed that the application of smart electricity technology on the power generation side can not only effectively improve the clean energy acceptance capacity of the system, but also improve the efficiency of traditional power generation technology, while on the power side, it can reduce transmission losses, improve transmission efficiency, improve the resource utilization rate and power supply reliability of electric infrastructure, so as to achieve the function of energy conservation and emission reduction; On the user side, the power consumption information is fed back to users through the power consumption information acquisition system and intelligent power consumption terminal, which helps them adjust the power consumption mode, change the power consumption concept, and improve the power consumption efficiency. At the same time, it can also promote the access of distributed power, so as to achieve intelligent interaction and green saving. In the future, more factories will be built

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