Abstract
In recent years, Malaysian government has been searching for an opportunity to realize the first wind farm in Malaysia to achieve 20% penetration of renewable energy by 2025. Even though Malaysia experiences low average wind speed, but rapid advancement of micro-wind turbine technology promises a potential enhancement of wind harvesting in Malaysia in the near future. Concerning of high wind penetration to the grid, severe technical problems because of its fluctuating and intermittent nature will affect the power system stability. In view of that, this paper proposes a dispatch strategy for a wind farm comprising micro-wind turbine generators supported by a battery to minimize the fluctuation where for a monthly interval, a different value of reference power is followed. In parallel, the lower and upper constraints of battery state-of-charge must be satisfied. The proposed strategy is validated using the real wind data measured at Mersing, Malaysia. The results reveal that the proposed strategy successfully reduces the fluctuation and achieves the reference power for most of the intervals while ensuring the battery operates within a safe operating region. Using the simulation results, the payback period is estimated, which exposes that this project as an example, requires about 20 years of period to reimburse the capital expenditure.
Highlights
World electricity generation, including Malaysia, is highly dependent on fossil fuels despite the fact that over-consuming may lead to severe air pollution emissions
renewable energy (RE) related issues in Malaysia are managed by the Sustainable Energy Development Authority (SEDA) including a monitor and review of the Feed-in Tariff (FiT) system [2]
A dispatch strategy is proposed for a wind farm attached with a battery consists of ten micro-wind turbine generators (WTGs) that suit the Malaysia wind condition
Summary
World electricity generation, including Malaysia, is highly dependent on fossil fuels despite the fact that over-consuming may lead to severe air pollution emissions. Green energy resources, known as renewable energy (RE) such as wind, solar, biomass, and hydropower, is explored extensively Alongside their cleanliness, they offer lower costs and naturally replenished. The main drawback of wind power is its fluctuating and intermittent characteristics, which might drive serious technical issues i.e. voltage instability and frequency control problems if a large amount of wind power penetrates into the existing grid [3, 4]. Steady-state wind power can be produced and dispatched, capable of reducing negative impacts on the grid. These hybrid systems, entail an effective strategy to achieve the best possible outcomes.
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