不同的输电性能加剧了意大利的社会不平等
Katherine Emma Lonergan1, Andrej Stankovski1, Blazhe Gjorgiev1
1Reliability and Risk Engineering Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland.
iScience
|July 21, 2025
概括
由于基础设施问题,脆弱地区面临更大的电力输送损失. 改善电网维护和运营对于公平的能源供应至关重要.
科学领域:
- 电力系统工程 电力系统工程
- 能源经济学 能源经济学
- 社会技术系统 社会技术系统
背景情况:
- 高压电力输送对于可靠的电力供应和能源公平至关重要.
- 了解电网性能差异是解决服务提供不平等问题的关键.
- 意大利的高压电网是分析传输性能的一个案例研究.
研究的目的:
- 调查意大利高压输电网的历史表现.
- 确定导致电力传输业绩差异的因素.
- 通过改进电网管理来加强能源公平,提出建议.
主要方法:
- 对意大利电网开放的社会经济和电力系统数据的分析.
- 电网性能指标 (频率和能源损耗) 与区域社会经济脆弱性的相关性.
- 检查基础设施特征,地形和部件故障率.
主要成果:
- 社会脆弱的地区在输电中表现出更高的频率和能量损失.
- 性能差异与基础设施和地形特征有关.
- 132kV和150kV的元件,非TSO所有的元件,以及天气引起的故障都会导致性能问题.
结论:
- 电网性能不平等不成比例地影响弱势群体.
- 为了减轻故障,需要进行标准化操作和维护.
- 高压传输基础设施在实现能源公平方面发挥着至关重要的作用.
相关概念视频
Maximum Power Transfer
415
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
By substituting the entire circuit with...
415
Control of Power Flow
316
There are several methods to control power flow in power systems:
316
Design of Transmission Shafts
459
The design of a transmission shaft is governed by two primary specifications: the power it transmits and its rotational speed. These parameters guide the selection of the shaft's material and cross-sectional dimensions, ensuring that the material's maximum shearing stress remains within the elastic limit while transmitting the desired power at the given speed. The system's power is intrinsically linked to the applied torque. The torque applied to the shaft can be calculated by...
459
Transmission Shafts: Problem Solving
292
Designing a solid shaft that transmits power from a motor to a machine tool involves a series of calculations to ensure the shaft can withstand the stresses applied by bending moments and torques. First, calculate the torque exerted on the gear, considering the power transmitted by the shaft and its rotational speed. Following this, compute the tangential forces acting on the gears, which directly relate to the torque and the gear radius.
Next, use bending moment diagrams for the shaft to...
Next, use bending moment diagrams for the shaft to...
292
Electrical Power
3.2K
Electric power is the product of current and voltage, represented in units of joules per second, or watts. For example, cars often have one or more auxiliary power outlets with which you can charge a cell phone or other electronic devices. These outlets may be rated at 20 amps and 12 volts, so that the circuit can deliver a maximum power of 240 watts. Consider a 25 Watt bulb and a 60 Watt bulb. The conversion of electrical energy produces heat and light, while the kinetic energy lost by the...
3.2K
Relationship Formation
41.1K
What do you think is the single most influential factor in determining with whom you become friends and whom you form romantic relationships? You might be surprised to learn that the answer is simple: the people with whom you have the most contact. This most important factor is proximity. You are more likely to be friends with people you have regular contact with. For example, there are decades of research that shows that you are more likely to become friends with people who live in your dorm,...
41.1K


