Formulation of Low Voltage Ride-Through Curve Considering Offshore Wind Farms Integrated into an Islanding Power System - A Case Study in Taiwan

Lu, Shiue‐Der; Wang, Menghui; Tai, Chung-Ying; Tsou, Ming-Chang; Gu, Feng‐Chang

doi:10.1109/is3c.2018.00037

Cited by 2 publications

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“…In [107], a voltage stability analysis based on a control model was proposed. The method is suitable for large offshore wind farms integrated into the power system.…”

Section: Analysis and Verification Case Studies With Integrated Wind ...mentioning

confidence: 99%

Analytical Methods of Voltage Stability in Renewable Dominated Power Systems: A Review

2022

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The ongoing development of renewable energy and microgrid technologies has gradually transformed the conventional energy infrastructure and upgraded it into a modernized system with more distributed generation and localized energy storage options. Compared with power grids utilizing synchronous generation, inverter-based networks cannot physically provide large amounts of inertia, which means that more advanced and extensive studies regarding stability considerations are required for such systems. Therefore, appropriate analytical methods are needed for the voltage stability analysis of renewable-dominated power systems, which incorporate a large number of inverters and distributed energy sources. This paper provides a comprehensive literature review of voltage stability analyses of power systems with high levels of renewable energy penetration. A series of generalized evaluation schemes and improvement methods relating to the voltage stability of power systems integrated with various distributed energy resources are discussed. The existing voltage stability analysis methods and corresponding simulation verification models for microgrids are also reviewed in a systematic manner. The traditional and improved voltage stability analysis methods are reviewed according to the microgrid operation mode, the types of distributed generators, and the microgrid configurations. Moreover, the voltage stability indices, which play a crucial role in voltage stability assessments, are critically evaluated in terms of the applicable conditions. The associated modeling and simulation techniques are also presented and discussed. This contribution presents guidelines for voltage stability analysis and instability mitigation methods for modern renewable-rich power systems.

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“…In [107], a voltage stability analysis based on a control model was proposed. The method is suitable for large offshore wind farms integrated into the power system.…”

Section: Analysis and Verification Case Studies With Integrated Wind ...mentioning

confidence: 99%

Analytical Methods of Voltage Stability in Renewable Dominated Power Systems: A Review

2022

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“…Table 2 lists the 19 fault scenarios, 10 of which occurred in the 161-kV circuit and nine in the 345-kV circuit. Nantou E (2400) Nantou E (2400)-Chuanhsiang E (2350) 1st line Fault 19 Chiamin E (2500) Chiamin E (2500)-Chungliaopei E (2480) 1st & 2nd line Tables 3 and 4 show when the bus in the Taipower grid fails, and whether the OWT connection points will recover to 90% of rated voltage in three seconds after the fault occurs [26]. According to the results, when an accident occurs in an adjacent offshore wind farm, the OWT connection points will recover to 90% of rated voltage in 3 seconds at accident time points 0.1 second, 0.14 second, and 0.15 second.…”

Section: Establishment Of the Value Of Point D-fult Cearing Tme Of Ofmentioning

confidence: 99%

“…According to [25], when the fault is the most serious three-phase short-circuit fault, the minimum voltage at the OWT connection point is obtained, i.e., the valley of voltage at the OWT connection point at fault times of 0.15 second, 0.2 second, 0.5 second, and 0.625 second occur when the three-phase short-circuit fault happens in an adjacent offshore wind farm bus. Figures 5 illustrates the wind turbines minimum PCC voltages in the TPC system for varying fault durations and scenarios [26]. Table 5 shows the minimum voltage of each wind farm at PCC.…”

Section: Establishment Of the Values Of Point E To Point G-aalysis Ofmentioning

confidence: 99%

“…The fault clearance time (0.1, 0.14, and 0.15 seconds) influences on wind farms (Lutung, Luhsi, Hsienhsi, Changbin, and Tacheng)[26]. The wind turbines voltage at the PCC recovered to 90% of the rated voltage in 3 seconds after the fault happened; X: The wind turbines voltage at the PCC unrecovered to 90% of the rated voltage in 3 seconds after the fault happened.…”

mentioning

confidence: 99%

“…The fault clearance time (0.2, 0.5, and 0.625 seconds) effects on wind farms (Lutung, Luhsi, Hsienhsi, Changbin, and Tacheng)[26].…”

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confidence: 99%

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Implementation of the Low-Voltage Ride-Through Curve after Considering Offshore Wind Farms Integrated into the Isolated Taiwan Power System

Wang

Tai

2019

Energies

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In response to the power impact effect resulting from merging large-scale offshore wind farms (OWFs) into the Taiwan Power (Taipower) Company (TPC) system in the future, this study aims to discuss the situation where the offshore wind power is merged into the power grids of the Changbin and Changlin areas, and study a Low-Voltage Ride-Through (LVRT) curve fit for the Taiwan power grid through varying fault scenarios and fault times to reduce the effect of the tripping of OWFs on the TPC system. The Power System Simulator for Engineering (PSS/E) program was used to analyze the Taipower off-peak system in 2018. The proposed LVRT curve is compared to the current LVRT curve of Taipower. The research findings show that if the offshore wind turbine (OWT) set uses the proposed LVRT curve, when a fault occurs, the wind turbines can be prevented from becoming disconnected from the power grid, and the voltage sag amplitude of the connection point during the fault and the disturbances after the fault is cleared are relatively small. In addition, according to the transient stability analysis results, the system can return to stability after fault clearance, thereby meeting the Taipower transmission system planning criteria and technical key points of renewable energy power generation system parallel connection technique.

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Formulation of Low Voltage Ride-Through Curve Considering Offshore Wind Farms Integrated into an Islanding Power System - A Case Study in Taiwan

Cited by 2 publications

References 1 publication

Analytical Methods of Voltage Stability in Renewable Dominated Power Systems: A Review

Analytical Methods of Voltage Stability in Renewable Dominated Power Systems: A Review

Implementation of the Low-Voltage Ride-Through Curve after Considering Offshore Wind Farms Integrated into the Isolated Taiwan Power System

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