电动汽车对不平衡的配电网络产生影响,考虑到不同的负载和能源价格
S M A Mousavi Sadat1, H Mohammadnezhad Shourkaei1, S Soleymani1
1Department of Electrical and Computer Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Heliyon
|November 25, 2024
概括
智能电动汽车 (EV) 可以平衡电力分配网络 (DN) 的负载并降低成本. 本研究提出了一个部署单相电动汽车的模型,以支持DN可再生能源,提高电网稳定性和降低能源成本.
科学领域:
- 电气工程 电气工程
- 电力系统 电力系统
- 智能电网是一种智能电网.
背景情况:
- 分布式发电和波动的负载挑战了电力分配网络 (DN),造成了诸如电网拥堵和负载不平衡等问题.
- 电动汽车 (EV) 技术的进步使它们越来越适合于电网集成.
- 单相电动汽车为峰值负载减排和改善DNs负载平衡提供了潜力.
研究的目的:
- 提出一个能源和成本管理模型,用于在配电网络中战略部署单相电动汽车.
- 利用智能电动汽车用于与可再生能源集成的DNs的网络支持.
- 为了证明单相电动汽车在配电网络中平衡不平衡负载的能力.
主要方法:
- 开发了用于单相电动汽车部署的能源和成本管理模型.
- 在13个公共汽车配送网络中模拟电动汽车集成.
- 分析了24小时的能源成本,考虑了可变的能源定价和各种负载类型 (家庭和工业).
- 进行了灵敏度分析,以评估负载变化对电动汽车集成和不集成的网络成本的影响.
主要成果:
- 单相智能电动汽车在模拟不平衡的配电网络中有效改善了负载平衡.
- 拟议的模型表明,通过使用电动汽车,可以显著降低配电网络的成本.
- 敏感性分析证实了电动汽车整合在管理负载变化和相关成本方面的实际好处.
结论:
- 集成单相智能电动汽车为提高发电网的稳定性和效率提供了可行的解决方案.
- 根据模型,电动汽车的部署不仅可以减轻电网拥堵和负载不平衡,还可以为网络运营商节省大量成本.
- 调查结果强调了电动汽车在支持电网基础设施和降低运营成本方面的双重好处,特别是在可再生能源集成的网络中.
更多相关视频
相关概念视频
Secondary Distribution
81
Secondary distribution systems provide electrical energy at the utilization voltage levels from distribution transformers to customer meters. Typical secondary voltages in the United States include 120/240 V for residential use, 208Y/120 V for residential and commercial use, and 480Y/277 V for industrial and high-rise commercial use.
In residential areas, 120/240 V single-phase, three-wire service is commonly used for lighting, outlets, and large appliances. Urban areas with high-density loads...
In residential areas, 120/240 V single-phase, three-wire service is commonly used for lighting, outlets, and large appliances. Urban areas with high-density loads...
81
Three-Phase Voltages
217
A three-phase generator produces three voltages that are equal in magnitude but have a phase difference of 120 degrees. This identical magnitude and equal phase separated voltages are known as the balanced voltages and help to minimize power loss while ensuring a steady delivery of energy to connected loads. As voltage sources in a three-phase system can be configured in a wye or a delta formation, the loads connected to these systems can also be arranged in either configuration. This...
217
Transformers in Distribution System
98
Transformers in distribution systems can be broadly categorized into distribution substation transformers and other distribution transformers. They are crucial for stepping down high transmission voltages to levels suitable for distribution and end-user applications.
Distribution substation transformers come in various ratings and typically use mineral oil for insulation and cooling. To prevent moisture and air from entering the oil, some transformers use an inert gas like nitrogen to fill the...
Distribution substation transformers come in various ratings and typically use mineral oil for insulation and cooling. To prevent moisture and air from entering the oil, some transformers use an inert gas like nitrogen to fill the...
98
Primary Distribution
96
Primary distribution systems deliver electrical power from substations to consumers through various voltage classes, with 15-kV class voltages being predominant among U.S. utilities. Older 2.5- and 5-kV classes are being replaced by 15-kV primaries, while higher 25- to 34.5-kV classes are used in high-density urban areas and rural regions with long feeders. Three-phase, four-wire multigrounded systems are widely employed for balanced power delivery, using the neutral wire as a grounding point.
96
The Y-to-Y Circuit
397
In a balanced four-wire wye-to-wye system, the arrangement involves wye-connected sinusoidal voltage sources and loads, connected through a neutral wire that links the neutral nodes of the source and load. The load impedance is connected across each phase of the load. The wye-connected source can be connected to the wye-connected load in four-wire and three-wire arrangements. A three-phase system is considered balanced when the load on each phase is equal, leading to uniform current flow and...
397
Power Distribution in Three-phase and Single Phase Circuits
292
Power distribution within electrical circuits is a foundational aspect of residential and industrial energy systems. While single-phase power is common in residential settings, three-phase power is the standard for industrial environments with heavy machinery. Each system is different and has advantages, and it's crucial to understand the underlying principles of power distribution and material efficiency.
Single-Phase Power Distribution:
Single-phase circuits are typical in household...
Single-Phase Power Distribution:
Single-phase circuits are typical in household...
292


