Power supply maintenance does not have to be blackout, and the kapok type self healing network is

Mondo Health Updated on 2024-01-30

Electricity lights up a better life

Have you often received notices that your community needs a temporary power outage due to power maintenance? However, a friend who lives in Guangdong told me that when their Guangzhou Power Supply Bureau overhauled the circuit in the community, there was no need for power outages, which greatly facilitated the daily life of the residents. So, what kind of credit will this give to God Technology?I'm sure you all have the same questions as me.

My friend's family lives in the old community of Yuexiu, and because of problems such as aging lines and excessive power loads, the family used to have power outages at every turn. Every time the power supply personnel come to overhaul, the power will be cut off. But now that they are coming to work, there is no need for power outages in the homes of the residents. And his friends around him also found that the situation of "power outage maintenance" in the community is very rare.

With curiosity, my friend chatted with friends from Guangzhou Power Supply Bureau, and finally figured out the code of scientific and technological change before and after the great change of China Southern Power Grid Guangdong Guangzhou Power Supply Bureau. It turns out that this is all thanks to the launch of the innovative "kapok-type self-healing net" to continue the "life electricity" initiative.

The so-called "kapok-type" power grid structure, that is, residents are "petals", low-voltage power grids are "veins", and medium-voltage power grids constitute "flower trusts". The medium-voltage power grid delivers electricity to thousands of households through the low-voltage power grid, just like the "petals" continuously absorb nutrients from the "flower holder" through the "veins". Therefore, in this power supply mode, as long as the "receptacle" and "vein" remain strong and unimpeded, the "petals" will be brilliant and colorful, so that the city can realize the lights of thousands of homes. The launch of this new power supply network is a scientific reform of the Guangzhou Power Supply Bureau based on the study of local power supply bottlenecks.

In the past, Yuexiu District not only had a high density of electricity load, but also had many important users, which would lead to serious consequences in the event of a power outage. Through the implementation of automation transformation of the medium-voltage power grid in the entire Yuexiu District, the Guangzhou Power Supply Bureau has equipped the medium-voltage power grid with the function of "grid self-healing", that is, it can automatically judge faults, isolate faults, and transfer power supply and restore self-repair capabilities.

However, due to this kind of "grid self-healing", there are still "blind spots" and "dead ends", that is, equipment failures in some extreme scenarios may lead to the inability to restore the power supply of some residents. Based on this problem, the Guangzhou Power Supply Bureau has realized the coordination and mutual assistance of the medium-voltage power grid and the low-voltage power grid through the innovative practice of upgrading and upgrading the low-voltage power grid to enable residents to use dual power supply, so that the power supply recovery rate has reached 100%.

It is reported that the first "kapok-type" medium and low voltage collaborative self-healing distribution network in China will be officially put into operation in the Yuexiu High Reliability Demonstration Zone in September 2023, creating the country's first "3 100%" high-quality power supply demonstration sample, achieving 100% zero load loss, 100% zero use of power generation vehicles, and 100% zero perception of power outages under any equipment failure or maintenance of 10 thousand volt medium voltage, becoming one of the models of Guangzhou Power Supply Bureau to build a modern urban distribution network.

Under the premise of the "kapok-type" self-healing distribution network to do a strong job of continuous backing, Guangzhou Power Supply has also explored a new model to promote the transformation and upgrading of the power grid in the historical and cultural districts in Liwan District: with the improvement of power supply service quality and the guarantee of power as the core, the joint department will comprehensively promote the transformation and upgrading of the power grid in the historical and cultural districts, and strive to comprehensively improve the safety, reliability and intelligence level of power grid facilities without affecting the historical features, and strive to build a digital high-quality power supply demonstration area.

In order to eliminate the potential safety hazards of overhead lines and outdoor benches in the old urban area, the Liwan Power Supply Bureau has cooperated with the revitalization and transformation project of the historical and cultural district to regularize and partially launch the low-voltage overhead lines on the basis of a comprehensive and meticulous investigation of the outdoor power supply facilities in the old urban area, and has formulated a three-year action plan to gradually consolidate them, greatly reduce the potential safety hazards of power facilities, and improve the aesthetics and sense of history of the historical and cultural block.

Science and technology have given safe and efficient wings to the power supply service of Guangzhou Power Supply Bureau, which not only ensures the safety of power supply service personnel, but also improves customer satisfaction, which can be described as killing two birds with one stone. According to some data, in 2022, the power supply reliability rate of Yuexiu and Liwan will reach 99999%, the reliability of power supply is comparable to the international advanced level. There is no such thing as the best power supply reliability, only better. It is reported that in the next step, Guangzhou Power Supply Bureau will continue to improve the level of grid, equipment, system, service and basic management, with the goal of taking the lead in building a world-class urban power grid enterprise in an all-round way, striving to create a national leading benchmark power supply bureau, and actively serving Guangzhou to achieve new vitality and four new brilliance in the old city. Guangzhou Power Supply Bureau's warm-hearted power lighting action shows that as long as you have the people in your heart, there is nothing bad to do.

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