Load Flow and Reactive Power Capability Studies:
- Load Flow Study: This numerical analysis evaluates the flow of electric power, current, voltage, real power, and reactive power under various load conditions, assessing steady-state conditions for electrical systems.
- Reactive Capability of Power Converters: PV and wind generators using power converters have different reactive capabilities compared to synchronous machines. These capabilities are influenced by internal voltage, temperature, and current constraints, which are assessed for safe operations.
- SEN EDS ensures comprehensive load flow and reactive power studies for new designs and system optimizations across Assam.
Voltage Fluctuation Flicker:
- Short-Term and Long-Term Fluctuations: Short-term fluctuations, or flicker, cause rapid voltage changes within seconds, while long-term fluctuations occur over extended periods.
- Impact on Lighting Equipment: Flicker causes visible changes in the brightness of lamps or LEDs, which is mitigated through precise voltage regulation.
Voltage Unbalance Studies:
- Voltage unbalance occurs in three-phase systems due to variations in voltage magnitude or phase angles.
- SEN EDS conducts detailed studies to identify and resolve voltage imbalance issues, ensuring smooth operations for polyphase systems in Assam.
Fault Level Studies:
- Fault level analysis identifies the maximum current during a short circuit fault at a specific point in the power network.
- SEN EDS evaluates circuit breakers for their breaking, making, and short-time capacities, ensuring reliability in Assam’s power systems.
Temporary Overvoltage Study:
- TOVs are long-duration power-frequency overvoltages caused by factors like faults, resonance, load rejection, or transformer energization.
- SEN EDS assesses breaker performance for transient recovery voltage (TRV) and rate of rise of recovery voltage (RRRV) under varying fault conditions to enhance system safety.
FRT & FFCI Studies:
- Fault Ride-Through (FRT): Ensures generating units remain synchronized during faults, addressing challenges arising from increased inverter-based generation in Assam.
- Fault Current Injection (FFCI): Evaluates the system’s fault current injection capabilities to ensure performance stability in both transmission and distribution networks.
Voltage Control and Reactive Power Stability:
- Voltage control maintains grid voltage levels between 95%-105% of nominal values using advanced controllers and strategically placed actuators like transformers and capacitor banks.
- SEN EDS addresses reactive power stability issues to meet local grid requirements, leveraging advanced technologies in solar and wind energy for Assam’s power infrastructure.
- Frequency Analysis: SEN EDS utilizes frequency response analyzers to assess system performance through transfer function analysis, offering faster and more efficient solutions for steady-state response.
- This helps maintain grid stability and optimize the design of power systems across Assam.
Partner with SEN EDS to enhance power system performance in Assam using DIgSILENT’s advanced simulation and analysis tools.
