I.Introduction​​Background of Energy and Smart Grids​Since the 21st century, the increasing depletion of non-renewable energy sources and worsening ecological environmental pollution have made energy issues a critical constraint on the development of human society. As an efficient and clean secondary energy source, electricity holds a significant position in the energy structure. To meet the growing demand for electricity and adapt to the diverse requirements of power development, building a saf

Overview​With the deep integration of energy transition and the digital economy, traditional electricity management models can no longer meet the demands for precision, intelligence, and low-carbon development. This solution leverages advanced smart meters and IoT technologies to build a smart electricity management system covering various scenarios such as residential, commercial and industrial, distributed energy, and electric vehicle charging. It aims to improve energy efficiency, ensure safe

Amid the digital transformation of power grids and the construction of new power systems, smart meters have evolved from traditional electricity metering tools into intelligent terminal nodes integrating metering, communication, control, and analytics. This solution provides an in-depth analysis of the core functions, technical pathways, and diverse applications of smart meters, offering comprehensive value reference for various users.​I. Core Technological Foundation: High-Precision Metering an

I. Solution OverviewAs a core terminal device for grid digitalization, smart meters integrate high-precision metering, bidirectional communication, and intelligent analysis to provide real-time data support for power systems.This solution, developed in accordance with international and domestic standards and integrated with advanced communication technologies, builds a secure and reliable smart metering system. It is designed to meet diverse needs across residential, commercial, industrial, and

1.Overview​DC circuit breakers are critical protection devices in power systems, and their reliable operation is essential for system stability. This article provides systematic solutions for common DC circuit breaker failures, covering four major types: failure to close, failure to trip, false tripping, and false closing.​2. Solutions for Failure to Close​​2.1 Electrical System Fault Handling​• ​Open control circuit or absence of control power​Use a multimeter to measure the output voltage

I. Project Background and Requirement Analysis​With the deepening advancement of the energy transition, voltage source converter (VSC)-based flexible DC transmission technology has become a key solution for large-scale renewable energy integration and enhancing long-distance power transmission capabilities, owing to its advantages such as independent control of active and reactive power and low harmonic content. The construction of flexible DC grids is an inevitable trend. In this context, high-

Solution Overview​In modern renewable energy power systems, such as photovoltaic (PV) power generation and energy storage systems, fault protection on the DC side is a core element for ensuring safe, stable, and efficient operation. The Projoy PEBS series DC miniature circuit breakers are specifically designed for such applications, providing a comprehensive and efficient solution integrating arc control, overload protection, and short-circuit protection. This solution aims to deliver the highes

I. Solution Overview​This solution addresses the protection needs of DC systems (particularly rail transit traction power supply) against short-circuit faults by proposing a DC circuit breaker solution based on optimized mechanical breaker structure. It achieves arc-free interruption through capacitor voltage control, combining low on-state loss and high reliability, making it suitable for frequent operation scenarios.​II. Core Principle​Utilizes a fast mechanical switch topology combined with p

I. Overview​With the rapid development of new energy power generation and electric vehicle (EV) charging facilities, DC systems have imposed higher requirements for safety protection equipment. Traditional AC circuit breakers cannot effectively interrupt DC fault currents, creating an urgent need for specialized DC circuit breaker solutions. This solution provides professional protection configurations for two major application scenarios: photovoltaic (PV) power generation systems and EV chargin

I. Introduction​With the rapid advancement of modern information technology, intelligence has become a major trend in the development of industrial equipment. In the field of high-voltage switching, intelligent circuit breakers—as critical control components in power systems—form the foundation for automation and intelligence in power systems. This study focuses on an intelligent DC circuit breaker based on single-chip microcomputer (SCM) technology, emphasizing its practical applica