関連する実験動画
まとめ
世界の風力発電の潜在力は1.3x10^14ワットで,米国の限界は2x10^12ワットです. この研究では,風力発電の最大化のための非経済的要因と場所の要件を調査しています.
科学分野:
- 再生可能エネルギーの再生可能エネルギー
- 大気科学 大気科学
- 環境工学環境工学とは
背景:
- 風力エネルギーに対する世界的な関心が高まっているため,その究極の電力抽出限界を理解することが必要になります.
- 非経済的な要因は,風力資源から達成可能な電力総量に大きな影響を与えます.
- 以前の評価では,多くの場合,マクロスコプ的,非技術的な制約を無視しています.
研究 の 目的:
- 風力発電の世界の上限と大陸上の上限を決定する.
- 風力発電の潜在能力を制限する重要な非経済的要因を特定する.
- 場所の選択と資源の利用への影響を調査する.
主な方法:
- 風力エネルギーの可能性を分析するために,マクロスコプ的アプローチが採用されました.
- 大規模なエネルギー捕獲に影響を与える大気および地理的要因の検討.
- 物理的および環境的考慮に基づいた理論的な電力限界の推定.
主要な成果:
- 風力発電の世界の上限は1.3×10^14ワットと推定された.
- アメリカ大陸のサブリミットは,2×10^12ワットと計算された.
- これらの最大値に近づくために必要な場所の種類について,結論を導き出しました.
結論:
- 風力エネルギーは膨大な可能性を秘め,他の再生可能エネルギー源の多くを,計算された限界でも上回っています.
- 戦略的な場所の利用は,風力発電の潜在能力を最大限に発揮するために不可欠です.
- これらの非経済的制約を理解することは,将来のエネルギー計画と開発に不可欠です.
関連する概念動画
Maximum Power Flow and Line Loadability
The maximum power flow for lossy transmission lines is derived using ABCD parameters in phasor form. These parameters create a matrix relationship between the sending-end and receiving-end voltages and currents, allowing the determination of the receiving-end current. This relationship facilitates calculating the complex power delivered to the receiving end, from which real and reactive power components are derived.
Turbine-Governor Control
Turbine-governor control is crucial for maintaining power system stability by balancing turbine mechanical power output with electrical load demand. This mechanism ensures that generator frequency and rotor speed are within acceptable limits during load variations. Turbine-generator units store kinetic energy due to their rotating masses; this energy is released to meet the load requirement when the load increases. The electrical torque of turbines rises to meet the demand, whereas the...
Wind Turbine Machine Models
In the growing field of wind energy, incorporating wind turbine models into transient stability analysis is essential. Induction and synchronous machines are the primary models used, with induction machines being prevalent due to their simplicity and reliability.
Induction machines interact through the rotating magnetic field generated by the stator and the rotor. The key parameter is slip, which is the difference between synchronous speed and rotor speed relative to synchronous speed. Slip is...
Induction machines interact through the rotating magnetic field generated by the stator and the rotor. The key parameter is slip, which is the difference between synchronous speed and rotor speed relative to synchronous speed. Slip is...
Limits of the First Law of Thermodynamics
Spontaneous processes, like a rock falling to the ground or sodium reacting with chlorine, occur without external work and often involve a decrease in the system‘s energy. However, certain endothermic processes, such as the dissolution of sodium chloride in water, occur spontaneously even though they increase the energy of the system. This limitation suggests that the First Law of Thermodynamics, which states that the total energy of a system is constant in an isolated system, cannot fully...
Load-frequency control
Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...
Types of Limits I
Limits are a key mathematical concept for understanding how functions behave as their input approaches specific values, particularly when the function is undefined. They help reveal trends and discontinuities by examining the values a function approaches rather than its actual value.One-sided limits focus on the direction from which a value is approached. When a function behaves differently depending on whether the input approaches from the left or the right, the two one-sided limits may not...