Studies on High Performance Generation System of Micro-hydraulic Turbine in Low Flow Rate and Lew Head.

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  • 新インバータ発電システムによるマイクロ水力発電システムの高性能化に関する研究　可変落差・可変流量下での高性能発電
  • シン インバータ ハツデン システム ニヨル マイクロ スイリョク ハツデン

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Improvement of the generation power in micro-hydraulic turbines is shown in the range of low flow rate and low head using a new inverter generation system. The generation power can be obtained down to very low flow rate and head using the new inverter generation system with variable rotational speed control, where a water turbine connot produce the electric power in a normal constant-speed-control system. Experiments were carried out using a practical micro-hydraulic turbine with 2 kW output and variable rotational speed in a forest on the mountain, Mie University. The total efficiency is kept at a high value even in the very low partial load area. Compared with the constant speed control, the generation power is improved over 20 percent by varying the rotational speed.

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