相关实验视频
Updated: Jan 29, 2026

08:46
Analysis and Specification of Starch Granule Size Distributions
Published on: March 4, 2021
5.6K
在辐射配电电网中使用混合优化方法分配发电和分流电容器分配
R Sundar1, D Ashokaraju2, T Dharmaraj3
1Sona College of Technology, Salem, Tamilnadu, India.
Scientific reports
|January 27, 2026
概括
本研究介绍了一种混合的鱼-羊优化算法 (WOA-OOA),用于在电力网络中最佳地放置分布式发电 (DG) 和分流电容器 (SC) 单元. 该方法显著降低了功率损耗,并改善了电压配置.
科学领域:
- 电气工程 电气工程
- 电力系统优化 电力系统优化
- 计算智能是一种计算智能.
背景情况:
- 辐射配电电网 (RPDNs) 面临电力损失和电压不稳定的挑战.
- 分布式发电 (DG) 和分流电容 (SC) 的最佳放置对于提高RPDN性能至关重要.
- 现有的优化方法在处理复杂的,多目标的分配问题时可能缺乏效率.
研究的目的:
- 提出一种新的混合优化方法,用于在RPDN中同时分配GD和SC单位.
- 提高全球和地方搜索能力的效率,以解决GD/SC的安置问题.
- 评估拟议方法在减少主动功率损失 (APL),改善总线电压 (BV) 和最大限度地降低运营成本方面的有效性.
主要方法:
- 开发一个混合框架,集成全球搜索的鱼优化算法 (WOA) 和本地搜索的鱼优化算法 (OOA).
- 应用混合鱼-鱼算法 (HWOA) 来确定 DG 和 SC 单位的最佳位置和尺寸.
- 测试HWOA在基准RPDN系统 (33,69和118公交车) 上,用于单个和多个目标场景,包括负载不确定性.
主要成果:
- 实现了显著的APL降低:单个DG/SC单位的APL降低高达77.29%,在33辆公共汽车系统上的两个单位的APL降低高达89.61%.
- 在69巴士系统上,证明了大幅降低APL (高达74.97%) 和改善最低BV (至0.9686pu).
- 在大型电力网络 (118 总线系统) 中,HWOA 已被证明是有效和可扩展的,并且对负载不确定性强大.
结论:
- 与现有方法相比,拟议的HWOA在DG/SC分配中提供了更高的性能,实现了显著的功率损耗降低和电压改善.
- 混合方法有效平衡勘探和开发,为复杂的电力系统优化问题提供高质量的解决方案.
- HWOA是提高辐射发电网的效率,稳定性和经济运行的有希望的工具.
相关概念视频
Power System Distribution
1.1K
Power system distribution involves delivering electrical energy from power plants to consumers through a network of transmission and distribution systems. The process begins at power plants, where energy from coal, gas, nuclear, water, and wind is converted into electrical energy. These plants use three-phase generators, typically rated between 50 to 1300 MVA, with terminal voltages ranging from a few kV to 20 kV, depending on the size and age of the units.
The transmission system is designed...
The transmission system is designed...
1.1K
Power Distribution in Three-phase and Single Phase Circuits
631
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 settings;...
Single-Phase Power Distribution:
Single-phase circuits are typical in household settings;...
631
Drug Distribution: Volume of Distribution
7.4K
The volume of distribution refers to the theoretical volume necessary to contain the entire amount of an administered drug at the same concentration observed in the blood plasma. The body's intracellular fluid compartment, which makes up two-thirds of the total body water, is contrasted with the extracellular fluid compartment—comprising plasma and interstitial fluid—that accounts for one-third. The volume of distribution can vary depending on the characteristics of the drug.
7.4K
F Distribution
10.7K
The F distribution was named after Sir Ronald Fisher, an English statistician. The F statistic is a ratio (a fraction) with two sets of degrees of freedom; one for the numerator and one for the denominator. The F distribution is derived from the Student's t distribution. The values of the F distribution are squares of the corresponding values of the t distribution. One-Way ANOVA expands the t test for comparing more than two groups. The scope of that derivation is beyond the level of this...
10.7K
Distributed Loads
967
Distributed loads are a common type of load that engineers and scientists encounter in various practical situations. Distributed loads often refer to a type of load spread over a surface or a structure and can be modeled as continuous force per unit area.
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
967
Volume of Distribution
1.2K
The apparent volume of distribution (Vd) is a crucial pharmacokinetic parameter representing the hypothetical body fluid volume into which a drug disperses. It is calculated based on the total amount of drug in the body (estimated from the administered dose and bioavailability) divided by the plasma drug concentration. The total amount of drug in the body does not directly refer to the dose given but is derived by accounting for absorption, distribution, metabolism, and excretion processes.
1.2K

