基于PSO优化的模糊PI和层次有限状态模型预测控制的合作式模块化多层转换器控制
Yale Liu1, Yizhi Tian2, Wenjie Zhang1
1School of Electrical engineering, Xinjiang University, Urumqi, China.
Scientific reports
|November 25, 2025
概括
本研究介绍了模块化多层转换器的新型协调控制策略,通过将模糊PI控制与模型预测控制集成来优化性能. 这种先进的方法提高了当前跟踪的准确性,并减少了计算负载,以提高效率.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
- 控制系统 控制系统
背景情况:
- 模块化多级转换器的传统双循环控制面临着经验参数调整和高计算负担的挑战.
- 外环PI控制器调整和内环复杂性的局限性阻碍了最佳性能.
研究的目的:
- 提出一个协调的控制策略,克服模块化多层转换器传统双循环控制的局限性.
- 为了提高当前跟踪的准确性和减少计算复杂性.
主要方法:
- 基于粒子群优化的模糊PI控制 (外部循环) 与有限状态层次模型预测控制 (内部循环) 的集成.
- 使用二维模糊PI控制器,通过粒子群优化通过自适应参数调整.
- 采用有限态模型预测控制与反向计算用于电压预测和子模块确定.
- 包括循环电流抑制和预测子模块电压平衡.
主要成果:
- 优化了对外环模糊PI控制器的参数调整,提高了自适应能力.
- 降低了内部循环模型预测控制中的计算复杂性.
- 有效地抑制循环电流和平衡子模块电容器电压.
- 在不同的操作条件下,证明了高电流跟踪准确性.
结论:
- 拟议的协调控制战略有效地解决了模块化多层转换器传统双循环控制的局限性.
- 集成先进的控制技术可以提高性能,效率和稳定性.
- 模拟结果验证了拟议战略的有效性和实用性.
相关概念视频
PID Controller
631
Proportional-Integral-Derivative (PID) controllers are widely used in various control systems to enhance stability and performance. In a thermostat, it adjusts heating or cooling based on the temperature difference between the actual and desired levels. They are often used in automotive speed systems, effectively managing sudden speed changes while maintaining a constant speed under varying conditions. On the other hand, PI controllers, commonly employed in voltage regulation, enhance stability...
631
Open and closed-loop control systems
1.5K
Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
1.5K
PI Controller: Design
1.1K
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...
1.1K
PD Controller: Design
595
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,...
595
Controller Configurations
339
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...
339
Time-Domain Interpretation of PD Control
355
Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
Consider the example of control of motor torque. Initially, a positive...
355


