通过改进的松鼠算法,研究柴油发动机在负载变化下的转速波动控制
Jun Fu1,2,3, Luchen Lin1, Shuo Gu1
1College of Mechanical and Energy Engineering, Shaoyang University, Shaoyang, China.
PloS one
|August 1, 2025
概括
这项研究引入了一个模糊的比例积分导数 (FPID) 控制器,该控制器通过改进的子搜索算法 (ISSA) 来优化柴油发动机转速控制. 与传统的PID控制器相比,FPID控制器显著减少了超速,并更有效地稳定了速度波动.
科学领域:
- 工程 工程师 工程师 工程师
- 控制系统 控制系统
- 汽车工程 汽车工程
背景情况:
- 柴油发动机的转速控制由于非线性和时间变化的动态而存在挑战.
- 传统的比例积分导数 (PID) 控制器在管理系统响应延迟和超标方面存在局限性.
- 标准PID控制器很难适应复杂的负载变化.
研究的目的:
- 通过使用一种新的控制策略,提高柴油发动机转速控制的适应性.
- 为优化控制器参数开发一个改进的子搜索算法 (ISSA).
- 为了比较拟议的模糊PID (FPID) 控制器与传统PID控制器的性能.
主要方法:
- 一个改进的子搜索算法 (ISSA) 已经开发和验证使用测试函数对汇聚和准确性.
- 使用ISSA调整模糊比例积分导数 (FPID) 控制器的参数.
- 在各种操作条件下,在FPID控制器和传统PID控制器之间进行了实验性比较.
主要成果:
- 与标准算法相比,ISSA证明了加速的融合和更高的准确性.
- 在2000 RPM时,FPID控制器减少了1.4秒的调整时间,并在2000 RPM时超过了6.8%.
- 在负载变化 (8和10) 下,FPID控制器的稳定时间分别减少了18%和30%,波动偏差分别减少了7%和12%.
结论:
- 拟议的FPID控制策略,由ISSA优化,显著提高柴油发动机转速控制性能.
- FPID控制器提供了增强的适应性和稳定性,性能优于传统的PID控制器.
- 这种方法在动态转速波动期间为柴油发动机稳定运行提供了强大的支持.
相关概念视频
01:28Load-frequency control
260
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...
260
01:17Turbine-Governor Control
391
Turbine-governor control is crucial for maintaining power system stability by balancing turbine mechanical power output with electrical load demand. This mechanism ensures that generator frequency and rotor speed are within acceptable limits during load variations. Turbine-generator units store kinetic energy due to their rotating masses; this energy is released to meet the load requirement when the load increases. The electrical torque of turbines rises to meet the demand, whereas the...
391
01:21Generator Voltage Control
243
Generator voltage control is crucial for maintaining the stable operation of synchronous generators and wind turbines. In older models, a DC generator driven by the rotor delivers DC power to the rotor's field winding, and the power is transferred through slip rings and brushes. In the latest models, static or brushless exciters are used. Static exciters rectify AC power from the generator terminals and then transfer the DC power directly to the rotor. Brushless exciters, on the other hand,...
243
01:21The Swing Equation
684
The Swing Equation is a fundamental tool in power system dynamics, especially for analyzing the behavior of generating units like three-phase synchronous generators. This equation emerges from applying Newton's second law to the rotor of a generator, encompassing factors such as inertia, angular acceleration, and the interplay between mechanical and electrical torques.
In a steady-state operation, the mechanical torque (Τm) supplied to the generator is balanced by the electrical torque...
In a steady-state operation, the mechanical torque (Τm) supplied to the generator is balanced by the electrical torque...
684
01:07Time-Domain Interpretation of PD Control
180
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...
180
01:30Control of Power Flow
316
There are several methods to control power flow in power systems:
316