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PV-pumped energy storage option for convalescing performance of hydroelectric station under declining precipitation trend
摘要： The precipitation trend is critically important for functioning of hydroelectric power stations and development of irrigation sector. Studies indicate that freshwater availability in many river basins in India is likely to decrease due to climate change. Despite having promising hydro potential in north-eastern (N-E) region of India, decline in rainfall in the region causes paucity of water in various hydro power plants' reservoirs. Many units of hydroelectric projects are being kept off and as a result, generation comes down to a large extent. As a partial solution to the problem, many such small hydroelectric projects' may be revived by integrating solar photovoltaic (PV) powered pumped storage unit as there is synergy of solar energy with irrigation water pumping and hydro power station. The present study aims to looking at reliable, continuous and cost-competitive power supply option. The study has been conceived with the lone hydroelectric power station of Tripura (one of the N-E states of India) which practically remains inoperative as water is hardly available at the end of the year and before next monsoon. Results substantiate that PV powered pumped storage is a viable option for restoring the steady annual performance of the hydroelectric plant.
关键词： PV power generation,Pumped storage,Generation mix,Hydro power generation,Climate change
更新于2025-09-23 15:23:52
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[IEEE 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) - Chengdu, China (2019.5.21-2019.5.24)] 2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) - Emergency Control for Improving Transient Stability of Integrated Systems with Photovoltaic and Hydropower Stations Based on EEAC Theory
摘要： Integrated systems with photovoltaic (PV) and hydropower stations can make full use of energy. However, the system may be prone to transient instability due to the weak grid and low inertia characteristic of PV stations. This paper presents an emergency control method for transient stability enhancement of the integrated system with PV and hydropower stations based on the extended equal area criterion (EEAC) theory. Firstly, when the system is disturbed, it can be equivalent to a single machine infinite system. Subsequently, the equivalent electromagnetic power curve is fitted considering the influence of PV stations based on the least square method. Moreover, the equal area criterion is used to determine the control quantity of generator tripping. Finally, simulation results provided by BPA are performed to validate the effectiveness of the proposed method.
关键词： generator tripping,extended equal area criterion (EEAC),photovoltaic,hydro power,Transient stability
更新于2025-09-11 14:15:04