Fault Ride-Through

Fault Ride-Through (FRT) is the capability of a power generating unit, particularly renewable sources like wind and solar, to remain connected to the grid during and after a severe voltage dip. This requirement, defined by standards like IEEE 1547 and national grid codes, mandates that the unit not only stays online but also actively supports grid voltage recovery by injecting reactive power. In enterprise risk management, FRT is a critical preventative control to ensure grid stability and prevent cascading blackouts, a major business continuity threat. It is fundamentally different from simple over/under-voltage protection, which merely disconnects the asset to protect it.

Implementation involves three key steps: 1) **Requirement Analysis:** Scrutinize the applicable grid code (e.g., Taiwan Power Company's technical guidelines) to define the specific voltage-time profiles the plant must withstand. 2) **System Design & Simulation:** Select certified inverters with FRT capabilities and use software like PSCAD to model and verify the plant's dynamic performance. 3) **Testing & Certification:** Submit simulation reports and type-test certificates (per IEC 61400-21-1) to the utility for approval before grid connection. Measurable benefits include 100% grid code compliance, reduction of revenue loss from grid disturbances by over 90%, and guaranteed passage of utility interconnection audits.

Taiwan enterprises face three main challenges: 1) **Dynamic Regulations:** Grid codes are frequently updated to accommodate more renewables, requiring continuous investment in compliance. 2) **High Certification Costs:** International certification for FRT capability is expensive and can be a barrier for smaller companies. 3) **Talent Shortage:** Experts in power systems, converter controls, and grid regulations are scarce. Solutions include engaging expert consultants for regulatory tracking, prioritizing pre-certified modular equipment to reduce testing costs, and fostering industry-academia partnerships to cultivate talent. A 6-12 month timeline is realistic for building an in-house team.

Winners Consulting specializes in Fault Ride-Through for Taiwan enterprises, delivering compliant management systems within 90 days. Free consultation: https://winners.com.tw/contact