设计和控制LCC DVR的设计和控制
A S Manju1, P V Manitha2, Manjula G Nair3
1Power Electronics Group, Centre for Development of Advanced Computing, Thiruvananthapuram, India.
Scientific reports
|July 16, 2025
概括
本研究介绍了LCC (电感器-电容器-电容器) 动态电压恢复器 (DVR),这是一种新的配置,可以显著降低直流电压和逆变器功率额定值,用于电力分配网络中电压波动补偿.
科学领域:
- 电气工程 电气工程
- 电力系统 电力系统
- 电力 电力质量 电力质量
背景情况:
- 公用事业电力质量至关重要,动态电压恢复器 (DVR) 是配电网络中的关键主动补偿器.
- 传统的DVR需要高直流电压和额定功率,这限制了它们的效率.
- 电压下降和膨胀,无论是平衡还是不平衡,都需要有效的补偿策略.
研究的目的:
- 介绍一个三相10kVALCC DVR的设计,控制,模拟和硬件实现.
- 为了证明LCC DVR配置在降低直流电压和逆变器功率要求方面的有效性.
- 提供LCC DVR与其他现有DVR配置的比较分析.
主要方法:
- 开发使用LCC输出过器修改的DVR拓.
- 为拟议的DVR实施有效的控制策略.
- 一个10kVA三相原型的模拟和硬件测试.
- 与传统的DVR设计进行比较性能评估.
主要成果:
- 与传统DVR相比,LCC DVR配置成功地降低了直流电压和逆变器功率额定值.
- 设计的DVR有效地弥补了平衡和不平衡的电压下降和膨胀.
- 硬件实现验证了模拟结果,并证明了实际可行性.
- 对比分析强调了LCC DVR在组件等级方面的优势.
结论:
- 通过减少组件应力和功率要求,LCC DVR提供了比传统DVR显著的改进.
- 这种配置为提高电力分配系统的电力质量提供了高效和实用的解决方案.
- 提出的设计和控制策略得到了验证,为更广泛采用LCC DVR技术铺平了道路.
相关概念视频
01:26PD Controller: Design
356
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
356
01:22Controller Configurations
152
Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
152
01:24PI Controller: Design
504
Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...
504
01:28Load-frequency control
263
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...
263
01:22Phase-lead and Phase-lag Controllers
228
Understanding the working function of different types of controllers can be illustrated with practical analogies, such as adjusting a stereo's volume equalizer. Cranking up the bass involves a phase-lead controller, which functions as a high-pass filter, while increasing the treble uses a phase-lag controller, which acts as a low-pass filter. PD controllers, similar to high-pass filters, enhance the system's response to high-frequency components. PI controllers, akin to low-pass...
228
01:10Control Systems
1.4K
Control systems are everywhere in contemporary society, influencing diverse applications from aerospace to automated manufacturing. These systems can be found naturally within biological processes, such as blood sugar regulation and heart rate adjustment in response to stress, as well as in man-made systems like elevators and automated vehicles. A control system is essentially a network of subsystems and processes that collaboratively convert specific inputs into desired outputs.
At the heart...
At the heart...
1.4K