Cooperative Control and Required Capacity Evaluation of Multiple Energy Storage Systems and Biogas Generation Installed with Renewable Energy Generation

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  • 太陽光・風力発電に併設される複数の蓄電池・バイオガス発電の協調制御と必要容量評価
  • タイヨウコウ ・ フウリョク ハツデン ニ ヘイセツ サレル フクスウ ノ チクデンチ ・ バイオガス ハツデン ノ キョウチョウ セイギョ ト ヒツヨウ ヨウリョウ ヒョウカ

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Abstract

In this paper, a cooperative control of three energy storage systems (ESSs) and biogas generation for a stabilization of renewable energy generation output is developed considering the difference of characteristics such as the ratio of energy capacity to power capacity (energy/power ratio) and the dynamic response. The purposes of this system are 30-minute balancing between the actual and scheduled output based on weather forecasts and absorption of the short-term (less than 30 minutes) output fluctuation. This paper presents the basic study about an efficacy and best portfolio of a cooperative control of multiple ESSs and BG. This paper also describes ESS capacity and control parameters design procedure. Evaluation results of required ESS capacity conduces a planning method of scheduled output for SOC recovery. Additionally, it is understood that BG is effective as the substitute of sodium-sulfur battery (NAS).

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