Under the dual waves of energy revolution and digital transformation, the power system is undergoing a profound transformation from "one-way energy supply" to "intelligent interaction". As the core link between energy production and end users, the intelligence level of medium and low voltage electrical systems directly determines the achievement of grid efficiency, electricity safety, and carbon neutrality goals. Faced with emerging demands such as Industry 4.0, smart cities, and large-scale access to new energy, the overall solution for medium and low voltage electrical systems is reshaping the underlying logic of the power ecosystem through innovative models of "system integration, intelligent collaboration, and full chain services".
1、 Architecture Innovation: Transitioning from a Single Device to a Smart Ecosystem
Traditional medium and low voltage electrical systems are centered around hardware such as circuit breakers and distribution cabinets, which suffer from pain points such as equipment isolation, passive operation and maintenance, and low energy efficiency. The new generation of overall solution builds a three-layer technical system through the "cloud edge end" collaborative architecture:
Intelligent perception layer
Integrate IoT sensors, smart meters, edge computing units, and collect voltage, current, temperature, harmonics and other data in real time to achieve "transparency" of equipment status. For example, a certain intelligent circuit breaker has 32 monitoring points built-in, which can predict the risk of contact wear 72 hours in advance.
Digital control layer
A dynamic load management system based on AI algorithms that responds to power fluctuations at the microsecond level. After application in a certain steel plant, the voltage flicker caused by impact loads decreased by 90%, and the power factor increased from 0.82 to 0.98.
Cloud decision-making layer
Build a virtual power grid through digital twin technology, simulate fault scenarios, and automatically generate optimization solutions. The case of Suzhou Industrial Park shows that the system has shortened the power outage recovery time from 45 minutes to 8 seconds.
2、 Scenario Implementation: Customized Practice for Cracking Industry Pain Points
1. Industrial sector: Balancing high reliability power supply and energy efficiency revolution
In precision industrial scenarios such as automotive manufacturing and semiconductors, millisecond level power outages can result in millions of losses. The overall solution is designed with a "dual ring network+fast switching" to ensure a power supply continuity of 99.9999%. The intelligent microgrid system deployed by a certain wafer fab integrates photovoltaics, energy storage, and diesel generators, achieving a 28% reduction in electricity costs and an annual carbon reduction of 4200 tons.
2. Urban power grid: flexible consumption of distributed energy
Faced with the massive access of distributed energy sources such as photovoltaics and charging piles, the solution adopts adaptive protection technology and dynamic topology reconstruction algorithm. After the renovation of a distribution room in a community in Hangzhou, the penetration rate of photovoltaics increased from 25% to 65%, and the overvoltage problem caused by reverse power transmission decreased by 80%.
3. Commercial buildings: from energy consumers to smart energy hubs
By deploying a smart energy management platform, commercial complexes can optimize load curves such as air conditioning and lighting in real-time. After being applied in a certain office building in Shanghai, the comprehensive energy consumption has been reduced by 22%, and it has participated in power grid peak regulation through demand response, receiving subsidies of over one million yuan annually.
3、 Technological Breakthrough: Four Core Innovation Dimensions
Global Interconnection
Adopting the IEC 61850 communication protocol, seamless integration of circuit breakers, relay protection devices, and SCADA systems is achieved with a communication delay of less than 10ms.
Active Safety
Developing a model for detecting arc light and predicting insulation aging, with a fault recognition accuracy of 99.3%, and achieving zero electrical fire accidents in a chemical industrial park after application.
Energy efficiency optimization
A blockchain based power trading module that supports cross production line transactions of factory surplus electricity, resulting in a 40% increase in resource utilization within an industrial park.
low carbon design
Using environmentally friendly gas insulation media (such as dry air) instead of sulfur hexafluoride has reduced the carbon footprint of a single ring main unit by 92% and obtained UL ECOLOGO certification.
4、 Service upgrade: closed-loop value throughout the entire lifecycle
Modern integrated solutions have broken through the "equipment delivery" model and built a closed-loop service system covering design, construction, operation, and recycling:
Planning and design phase: Using BIM+GIS technology to generate 3D digital models, avoiding pipeline collision risks, and saving 120 days of construction time for a data center project;
Construction and commissioning phase: Prefabricated intelligent distribution cabin realizes "plug and play", increasing installation efficiency by 70%;
Intelligent operation and maintenance stage: AR remote assistance system guides on-site operations, reducing the skill threshold for operation and maintenance personnel by 50%;
Retired recycling stage: Provide equipment residual value assessment and material recycling services, with a metal recovery rate of 98%.
5、 Future Vision: Three Major Trends for Coexistence with New Power Systems
fusion
The medium and low voltage equipment will be integrated with 5G base stations and edge data centers to form an urban "energy information fusion body". The pilot project in Xiong'an New Area has achieved the use of distribution cabinets as power supply nodes for 5G micro stations.
Autonomous evolution
A device self optimization system based on federated learning can achieve cross regional knowledge sharing without compromising data privacy. A multinational enterprise experiment showed that the accuracy of equipment failure prediction increased by 1.2% per month.
Democratization of Energy
Residents participate in virtual power plant transactions through smart meters, and a community project in Germany has proven that household users can earn up to 15% of their annual electricity bills.