This invention consists of a breaker circuit designed for microgrid systems. The breaker circuit features at least two inductors and a plurality of thyristors to facilitate controlled current flow from a source to a load. Additionally, the circuit includes a capacitor and a dedicated capacitor recharging circuit to maintain its operational readiness. The integration of these components ensures effective protection and management of bi-directional power supply within the microgrid environment.
- DC transmission is associated with a number of challenges with regard to power protection due to unavailability of standards and operating duties.
- Breaking the DC current is more challenging due to absence of natural current zero.
- As the Microgrid DC transmission systems are having a bi-directional power flow, there is a requirement of protecting the power in both the directions for efficient operation of the Microgrid DC transmission systems.
- Bi-directional Power Flow: Efficiently managed in DC microgrid systems with the help of thyristors and inductors.
- Fault Handling: Supports re-closing and re-breaking operations to maintain continuous power supply during faults.
- Capacitor Recharging: Includes a dedicated circuit to recharge the capacitor after fault isolation, enhancing readiness for subsequent operations.
- Simplicity and Efficiency: Optimizes component count to reduce volume, weight, and costs compared to conventional designs.
Prototype is validated
Results from simulations demonstrate the circuit's effectiveness in protecting bi-directional power flow under both temporary and permanent fault conditions. These validations highlight its reliability and suitability for real-world microgrid applications.
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- By enhancing the reliability and resilience of electrical distribution networks, these technologies support uninterrupted energy supply, crucial for industries, healthcare facilities, and residential areas.
- They also promote energy efficiency and grid stability, contributing to reduced carbon emissions and environmental sustainability goals.
- Moreover, improved power reliability helps mitigate economic losses from power outages, benefiting local economies and enhancing overall quality of life by ensuring dependable access to electricity for communities worldwide.
The breaker circuit for bi-directional power flow in microgrid systems finds applications in microgrids for stable operation during grid-connected and islanded modes. It supports the integration of renewable energy sources, ensuring grid stability amid fluctuating outputs. Industries benefit from uninterrupted power for critical processes, reducing downtime. In remote areas lacking reliable grid access, it provides essential electricity supply. Emergency backup systems rely on its seamless transition capabilities during outages. Advancing smart grids, it enhances bi-directional power management. Additionally, it facilitates bi-directional charging for electric vehicles, supporting vehicle-to-grid technology and energy storage integration, thereby advancing sustainability and grid resilience.
Geography of IP
Type of IP
201821008061
409998