Research on Power Quality Issues and Control Technologies at Distribution Transformer Terminals in PV Charging Stations
06/24/2025
Focused on the design of electrical equipment, proficient in electrical principles and relevant specifications, and skilled in using design software. From intelligent substations to various types of electrical equipment, I am adept at optimizing design solutions, integrating new technologies. With practical experience and collaborative management capabilities, I deliver outstanding electrical design achievements.
Key Technologies of Low-Voltage DC Solid-State Circuit Breakers
1 Technical Challenges1.1Stability of Device ParallelingIn practical applications, the current-carrying capacity of a single power electronic device is relatively limited. To meet high-current requirements, multiple devices are often connected in parallel. However, parameter variations between devices—such as slight differences in on-resistance and threshold voltage—can cause uneven current distribution during parallel operation. During switching transients, parasitic inductance and capacitance
09/02/2025
Research on Bridge-Type Fault Current Limiters
1 Bridge-Type Superconducting Fault Current Limiter1.1 Structure and Operating Principle of the Bridge-Type SFCLFigure 1 shows the single-phase circuit diagram of the bridge-type SFCL, which consists of four diodes D₁ to D₄, a DC bias voltage source V_b, and a superconducting coil L. A circuit breaker CB is connected in series with the limiter to interrupt the fault current after it has been limited. The bias source V_b provides a bias current i_b to the superconducting coil L. The voltage of V_
08/25/2025
What should be paid attention to in the design of low-voltage pole-mounted circuit breakers?
Low-voltage pole-mounted circuit breakers are critical protective and control devices in power systems, whose design and operation directly affect system safety and reliability. Their design must comprehensively address environmental adaptability, electrical parameter coordination, and actuator selection to ensure stable operation under diverse conditions. During operation, strict adherence to safety protocols, regular maintenance, and proper handling of exceptional situations are essential to p
08/21/2025
Study on Steep - Wave Breakdown Characteristics of Hybrid Porcelain Insulators
Porcelain and glass insulators exhibit excellent insulation performance and mechanical strength, but are prone to pollution flashover under severe contamination, threatening the stable operation of power grids. To enhance the pollution flashover resistance of external insulation, manufacturers commonly apply room-temperature vulcanized silicone rubber (RTV) coatings with superior hydrophobicity and hydrophobicity transfer properties onto insulator surfaces, thereby reducing flashover risks. Init
08/20/2025
