Abstract
In recent years, due to the enforcement of the Feed-in tariff (FIT) scheme for renewable energy, a large number of photovoltaic (PV) has been introduced, which causes fluctuations in the supply-demand balance of a power system. As measures against this, the introduction of large capacity storage batteries and demand response has been carried out, and the balance between supply and demand has been adjusted. However, since the increase in capacity of the storage battery is expensive, it is necessary to optimize the capacity of the storage battery from an economic point of view. Therefore, in the power system to which a large amount of photovoltaic power generation has been introduced, the optimal capacity and optimal arrangement of storage batteries are examined. In this paper, the determination of storage battery placement and capacity considering one year is performed by three-step simulation based on probability density function. Simulations show the effectiveness of storage batteries by considering the introduction of demand response and comparing with multiple cases.
Highlights
The introduction of renewable energy sources (RES) has been increasing significantly due to the enforcement of Feed-in tariff (FIT) and the environmental impact of human activities
In the power grid where solar power generation equipment was massively introduced, we study the optimum capacity and optimum arrangement of grid storage batteries based on the dynamic operation method
Comparing the case where PV was introduced from σPV = 1 (Case 1) to σPV = 2 (Case 2), the storage battery cost increased from 2.05 billion yen to 3.058 million yen, but the total cost increased from 40.996 billion yen It can be confirmed that it can be reduced to 38.769 billion yen
Summary
The introduction of renewable energy sources (RES) has been increasing significantly due to the enforcement of Feed-in tariff (FIT) and the environmental impact of human activities. The operation plan made on the previous day is not possible to deal with forecasting error In this way, with the massive introduction of renewable energy power generation, it becomes difficult to predict power generation of the power grid, the consideration of uncertainty becomes an important issue. It is possible to adjust the disturbance of demand-supply balance due to prediction error of generated power from renewable energy generation facilities by introducing storage batteries and demand response. When determining the demand response and the capacity of the storage battery, it is necessary to consider the adjustable amount in the case where the generated power of the renewable energy generation facility greatly fluctuates. In the power grid where solar power generation equipment was massively introduced, we study the optimum capacity and optimum arrangement of grid storage batteries based on the dynamic operation method.
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