Information and communication technology promotes the leapfrog development of energy interconnection
bell Avenue, Curie Road, Jiaxian road... Walking in the park of Huawei Bantian base, the municipal roads named by scientists connect each park, revealing the respect and pursuit of innovation and truth
"as China's visible light communication industry enters the era of ultra wideband dedicated chips, the imagination on 'smart streetlights' can also be realized in the future!" In the exhibition hall of industrial solutions, liujianming, director of the expert committee of the industrial development center of the Ministry of industry and information technology, "smart electricity is therefore one of DuPont's 10 principles is good risk control and equipment". Liu Jianming told that the rapid promotion of energy interconnection has promoted the marriage between the communication industry and the energy industry, the smart electricity macro demonstration platform, the smart city operation center Smart power distribution, big data application system, etc. build a new sensory nerve of energy system under the situation of interconnection of everything. ICT (information and communication technology) can be highly coupled with energy interconnection, and ICT will be the central nerve of energy interconnection in the future
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"energy information interconnection is one of the key links to realize the value of energy interconnection, information and communication solutions are one of its important business segments, and energy transformation provides a broad space for cooperation for the cross-border integration of communication and energy." Zhang Jing, director of Tsinghua energy interconnection Innovation Research Institute, believes that the ubiquitous sensing and interconnection characteristics of the energy system are compatible with all kinds of communication technologies and build a "energy information neural network"
in the case of extensive interconnection of energy in the future, the demand for open interconnection, safety, controllability, high efficiency and intelligence between the "generation, transmission, distribution, use, sale, storage and other systems of electric power and the comprehensive energy systems of cold, heat, gas and electricity will be higher and higher, and the requirements for information transmission and intelligent electricity will also be higher and higher
it is understood that after years of development, the backbone of power communication based on optical fiber has been basically completed in most countries, but the vast majority of distribution terminals are scattered in all corners of cities and villages. How to connect these distribution terminals has always been a key problem for the development of smart electricity
"the communication network must be as flexible, safe and reliable as electricity. It is the mainstream trend in the coming years to vigorously build high reliability power wireless IOT products. The fatigue reliability will ultimately be tested through fatigue experiments." Wu Haibin, director of Huawei's enterprise wireless industry development department, believes that wireless communication is an effective means to achieve the last kilometer coverage. However, the wireless public of operators is a shared resource and cannot provide high-quality, safe and reliable wireless connections for power. "Wireless technology has the unique advantages of safety, reliability, economy, flexibility and wide range, and has become the best means to build the power IOT." He added
according to relevant sources, State Grid Corporation of China has cooperated with Huawei to deploy elte DSA (China iot-g 230MHz) wireless power system on a large scale
according to the relevant plans of the national energy administration, the distribution and communication coverage rate will reach 95% in 2020, and the distribution automation rate is required to reach more than 90%. It is understood that so far, most of the distribution networks are in the state of no network connection, which cannot realize monitoring and detection. In 2014, the distribution and communication coverage rate in China was only 40%, and the distribution automation rate was 20%
ict creates a "central nervous system"
it is understood that the first problem to be solved in the construction of wireless specialty is "spectrum". The authorized spectrum that is easy to obtain in the energy industry is the "narrow-band discrete spectrum" of vhf/uhf (very high frequency (30-300MHz)/ultra high frequency (300-3000mhz))
in China, China Radio Regulatory Commission allocates some frequency points of 230m frequency band to power use. "In domestic power intensive areas, there are thousands of terminals per square kilometer, and there will be access needs of tens of thousands of terminals in the future. A data transmission radio base station can only support access of dozens of terminals, and the time delay is usually at the second level, which cannot meet the needs of massive information collection and millisecond level low time delay control in the power industry, and it is urgent to be solved by new technologies." An unnamed expert believed that the existing technology was "relatively backward"
"the power system originally used 230MHz frequency, which was approved by the relevant national competent departments to be applied in different industries such as electric power, petroleum and household appliances in 1992. It is mainly used for power load management to solve the problems of power failure and arrearage in the power system and ensure the power supply safety of the power system." Liu Jianming told, "the 230m frequency used in various industries is a comb structure. At present, using carrier aggregation technology and 4G or 4.5g wireless communication technology, China's frequency utilization efficiency is in the forefront of the world. State Grid Corporation of China has mature experience, and Huawei and Putian have participated in this research work, which can create more space for the development of energy interconnection in the future."
Huawei said that it has launched an elte DSA discrete spectrum aggregation solution based on 4.5g and oriented to 5g continuous evolution, which solves the technical bottlenecks of small capacity, small bandwidth, large time delay and high power consumption of traditional technologies in the discrete narrow-band spectrum owned by the power industry, and helps to build a full service power IOT. This is also an important reason to attract Huawei as the first choice in the "2018 energy interconnection research activity" jointly hosted by the national energy interconnection industry and technological innovation alliance and the Zhongguancun intelligent power industry technology alliance
ict energy consumption needs to be vigilant
ict technology helps the digital transformation of various industries, and the era of digital energy is coming: 67% of the 2000 multinational companies in the world in the past four years have identified digitalization as one of the company's core strategies
in Huawei's view, elte series wireless specialized solutions have served power customers such as Guodian, southern power, Western UK power, argonet in Austria, MVM in Hungary, netcity in Mexico, and assisted in distribution automation, electrical digitization, smart city and other businesses
"ICT is the cornerstone of the intelligent world by building an interconnected world of all things, but it is currently facing the challenge of energy consumption." Zhang Yihui, a senior expert in Huawei network energy industry, said
on the one hand, 5g will be deployed in 2020. At that time, the communication rate will increase tenfold, and the energy consumption will also double. It is predicted that the power consumption of global operators' communication networks will exceed 500billion kwh in the future
on the other hand, enterprise cloud is accelerating. According to Huawei network energy research data, the cloud application rate of enterprises will rise from 20% to 85% in; In 2017, data center energy consumption accounted for 3% of the global total energy consumption and showed a further upward trend; It is estimated that by 2025, ICT energy consumption will account for more than 15% of the global energy consumption, becoming the main load and energy consumer of electricity
"although modularization, frequency conversion, group control and other technical means are helping the data center to save energy, the total energy consumption will still increase significantly. Cloud acceleration and data center consumption will also continue to grow." Zhang Yihui said, "there is no future without green, and the average energy consumption per connection of ICT can be reduced by 80%." Under this goal, he believes that intelligent scheduling of multiple energy sources can enable ICT and electric intelligence to interact and achieve double benefits