DC-DC converters are widely used in many consumer electronic devices such as computers, medical equipment, battery chargers, cellular phones and many Industrial drives. These electronic devices require different voltage levels which is supplied from battery or some external supply. In multiple battery mission voltage decays as its stored energy is drained and requires large saving space. The switched DC-DC converters overcome these drawbacks and also regulate the output voltage for different power levels efficiently. This paper elaborates the structure of Luo converter with optimized PI controller. Positive Output Elementary Luo Converter (POELC) is designed for boost operation by choosing the appropriate duty cycle. The PI controller parameters are optimized using Cuckoo and Crow search algorithms. The proposed control methods are investigated for the transient and steady state region. The sensitivity of these controllers to supply load and line disturbances are also studied along with the servo response are presented. The controller incorporates a Luo converter is evaluated in terms of Integral Time Square Error (ITSE) and Integral Time Absolute Error. Dynamic modelling of the power converter is derived by using state space averaging method. The simulation model of the Luo converter with its control circuit is implemented in MATLAB/SIMULINK. Experimental result shows that Cuckoo PI controller has significantly performance improvement in comparison with both the conventional and Crow PI controller.

中文翻译：

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使用各种优化技术使正输出Luo转换器的误差最小化

DC-DC转换器广泛用于许多消费电子设备，例如计算机，医疗设备，电池充电器，蜂窝电话和许多工业驱动器。这些电子设备需要不同的电压电平，该电压电平由电池或某些外部电源提供。在多个电池中，任务电压随着其存储能量的消耗而衰减，并需要大量的节省空间。开关式DC-DC转换器克服了这些缺点，并针对不同的功率水平有效地调节了输出电压。本文详细介绍了采用优化PI控制器的Luo转换器的结构。正输出基本型Luo转换器（POELC）通过选择合适的占空比来实现升压工作。PI控制器参数使用Cuckoo和Crow搜索算法进行了优化。针对瞬态和稳态区域研究了所提出的控制方法。还研究了这些控制器对电源负载和线路干扰的敏感性，并给出了伺服响应。集成了Luo转换器的控制器通过积分时平方误差（ITSE）和积分时间绝对误差进行评估。利用状态空间平均法推导了功率变换器的动态建模。Luo转换器及其控制电路的仿真模型在MATLAB / SIMULINK中实现。实验结果表明，与传统的Crow PI控制器相比，Cuckoo PI控制器具有显着的性能提升。还研究了这些控制器对电源负载和线路干扰的敏感性，并给出了伺服响应。集成了Luo转换器的控制器通过积分时平方误差（ITSE）和积分时间绝对误差进行评估。利用状态空间平均法推导了功率变换器的动态建模。Luo转换器及其控制电路的仿真模型在MATLAB / SIMULINK中实现。实验结果表明，与传统的Crow PI控制器相比，Cuckoo PI控制器具有显着的性能提升。还研究了这些控制器对电源负载和线路干扰的敏感性，并给出了伺服响应。集成了Luo转换器的控制器通过积分时平方误差（ITSE）和积分时间绝对误差进行评估。利用状态空间平均法推导了功率变换器的动态建模。Luo转换器及其控制电路的仿真模型在MATLAB / SIMULINK中实现。实验结果表明，与传统和Crow PI控制器相比，Cuckoo PI控制器的性能都有显着提高。利用状态空间平均法推导了功率变换器的动态建模。Luo转换器及其控制电路的仿真模型在MATLAB / SIMULINK中实现。实验结果表明，与传统的Crow PI控制器相比，Cuckoo PI控制器具有显着的性能提升。利用状态空间平均法推导了功率变换器的动态建模。Luo转换器及其控制电路的仿真模型在MATLAB / SIMULINK中实现。实验结果表明，与传统的Crow PI控制器相比，Cuckoo PI控制器具有显着的性能提升。