I believe that when you pay attention to the ever-changing technology news and industry hotspots, you often have the illusion of "scattered flowers and charming eyes".
Take the booming digital energy industry as an example. Today we can see a breakthrough in charging technology, and tomorrow we can see a new energy project launched in a certain area. In the midst of intensive information bombardment, it is very difficult to grasp the main line logic of industrial development.
How to do it? One method is to have technical experts with actual combat experience interpret popular science in a simple way.
It sounds simple but difficult to do. Scientists in the laboratory may lack practical experience and cannot go deep into the actual industry. They can only talk in general terms.
At this time, standing at the intersection of science and industry, Huawei took the lead in opening the mysterious door of digital energy.
Following the "Fangbo Carbon Discussion Room" column, Huawei Digital Energy's latest black technology video column "Bit and Watt" invites experts to interpret hot technologies in each issue, uses concise and clear language, and combines a large number of practical practices to help everyone increase their understanding of digital energy black technology and understand the logic behind industry trends.
Grasping the changes of the times requires a deep understanding of the present. What truths can we touch through a program?
Listen to the collision of two worlds, why Huawei?
Readers who pay attention to the energy industry may have heard a sentence in the past two years: Bit manages Watt. Bits refer to digital technology and watts refer to power electronics (energy technology).
This new concept also interweaves many of our doubts about energy changes.
Many energy practitioners believe that the power system has been in stable operation for more than 100 years, and the "big iron lump" like the transformer is the pinnacle of the entire electrical industry.
Some people in the information industry believe that the inventions and innovations that have changed society in the past 30 to 40 years all come from ICT technology, semiconductors, AI and other technologies, which have brought benefits to various industries such as lighting and transportation. The energy industry is no exception. The use of digital technology to precisely control energy is the general trend.
People in the industry are still arguing, and passers-by are even more confused. What is a transformer, what is a semiconductor, and how do bits manage watts?
There are many voices coming in. At this time, if you want to form a clear and rational understanding of the changing situation of digital energy, authoritative sources, in-depth analysis, and evidence from examples are extremely valuable.
From this perspective, Huawei Digital Energy has moved in response to the times and launched "Bits and Watts", which is a judgment that meets the needs of the times.
First of all, Huawei's technical background. Huawei has absorbed a large number of scientists in the fields of ICT and power electronics for many years. Their understanding and insight into technology can bring professional and in-depth scientific views and help the public understand the real use of digital energy black technology.
Secondly, Huawei's circle of friends. The development and industrial layout of a new technology often involves a wide range of issues, and cannot be led by a single company or a single scholar. Huawei has been deeply involved in the ICT industry for many years, and can listen to voices from various parties such as government, industry, academia, research and application, and bring mature insights and thinking on the development prospects of the digital energy industry that take into account the interests of all parties.
In addition, Huawei has rich practices. Huawei Digital Energy is on the front line, with the pitfalls stepped on in the "frontier" and the direct experience accumulated, to grasp changes and trends more accurately, so that practitioners and ordinary audiences can find their connection with changes from more specific cases and reality.
The video column "Bit and Watt" is a new exploration of mutual understanding, trust, collision and integration of two worlds. In the first episode, the core key issue of the power system is discussed: arc detection and blocking technology.
technology exploration
Continuing the safety miracle of the power grid
Charles Steinmetz, a famous electrical engineer in the electrical age, once said that the interconnected electrical system is the largest and most complex machine ever designed by human beings. It is a miracle that such a huge system has been running continuously for more than a century with extremely high reliability.
But this miracle is being impacted in an energy system where photovoltaics and other new energy sources account for an increasing proportion. To put it simply, in the dual-carbon era, green energy represented by photovoltaics and wind energy is on the rise. However, these new energy sources are distributed and highly volatile, and have great instability. After being integrated into the power grid, management and scheduling are very difficult. Once there is a disturbance, the entire power grid will collapse.
Safety is the cornerstone of high-quality and sustainable development of the power and optical storage industry. To protect the security of the power grid in the new energy era, it is not enough to rely on traditional power electronics technology alone, and digital technology must also play its value.
One of the new technologies worth mentioning is the AFCI arc detection and blocking technology.
In the first episode of "Bits and Watts", Mr. Liu, a technical expert from Huawei, explained the ins and outs of AFCI to us in easy-to-understand language.
Let me talk about technical concepts first. The so-called DC arc is the continuous spark generated by the current breakdown of the air at the breakpoint of the circuit. In a photovoltaic system, a continuous arc will cause the temperature of the contact part to rise to 3000-7000 degrees, causing a fire.
Loose contacts, poor contact, aging and damaged cables, etc. may cause arcs, and DC arcs are usually difficult to detect. At this time, AFCI technology, that is, arc detection and blocking technology, is needed.
The arc detection and blocking technology is integrated into the function of the inverter, which can identify and cut off the arc at the first time when it is generated, so as to ensure the safety of the distributed photovoltaic system and avoid the fire caused by the high temperature of the arc.
This technology has been used in the power industry for a long time. What is the need for upgrading and iteration?
Mr. Liu explained that the traditional arc detection only supports low-level certification requirements, the length of the detection cable is insufficient, the input current is low, and it is prone to false alarms and false alarms, which no longer meet the needs of the actual development of photovoltaics.
More accurate, safe and controllable AFCI technology has become a rigid demand for power grid security. Therefore, in industrial practice, Huawei Digital Energy combines AFCI with deep learning, automatically finds arc characteristics through AI algorithms, and performs "face recognition" on currents, thereby achieving higher-precision arc recognition capabilities and putting on "safety hats" for rooftop photovoltaics.
Currently, Huawei's inverters with AFCI functions have been successfully applied in many countries and regions.
The AFCI technology exploration trip gave us a systematic and comprehensive understanding of the integration of digital technology and power electronics technology to achieve the safety of rooftop photovoltaics.
change with time
open wider door
In the field of rooftop photovoltaics, digital and intelligent technologies are playing an irreplaceable role in precise energy management and have become a rigid need for the further development of the photovoltaic industry.
The whole picture can be seen at a glance. The combination of ICT technology and power electronics technology is closely integrated with the development logic of the energy industry itself.
Then the next question is, how can a person or an enterprise connect their own interests with the changes of the times to promote action?
That's what Bits and Watts is all about.
The clearer the perception, the more powerful the action. Standing at the intersection of the two worlds, one needs to open up greater cognition in order to find opportunities for vigorous growth in the cracks.
Taking the AFCI technology mentioned in the first episode of the program as an example, combined with technical insight and Huawei's practice, we will accelerate towards reconstruction. As photovoltaics and energy storage are more and more deployed in parks, buildings, and homes, they are more closely integrated with people's production and life, and personal and property safety must be guaranteed. Behind this necessity, there are huge industrial opportunities.
At present, many overseas regions and countries regard photovoltaic DC arc detection and rapid shutdown as the standard, requiring all rooftop photovoltaics to have this capability. In China, the National Standardization Committee and the National Energy Administration jointly issued the "Guidelines for the Construction of the Carbon Peak Carbon Neutral Standard System", which will focus on formulating relevant standards for the grid side, power supply side, load side, and energy storage side of the new power system.
For individuals and enterprises, paying attention to relevant safety standards and ensuring that the use of rooftop photovoltaics or commercial operations can fundamentally improve safety capabilities is a prerequisite for long-term stability.
The arrival of the digital energy era does not depend on anyone's will. Through a video program, we can have a more detailed and accurate understanding of, and pay attention to and invest in, the core issues of these energy changes.
At the time point of the intelligent revolution in the energy industry, I hope you and I are both ducks before the spring water heating.
