MERAK681K10078 控制器模块

【功能描述】

MERAK681K10078该技术在很大程度上解决了上述矢量控制的不足，并以新颖的控制思想、简洁明了的系统结构、优良的动静态性能得到了迅速发展。目前，该技术已成功地应用在电力机车牵引的大功率交流传动上。直接转矩控制直接在定子坐标系下分析交流电动机的数学模型，控制电动机的磁链和转矩。它不需要将交流电动机等效为直流电动机，因而省去了矢量旋转变换中的许多复杂计算;它不需要模仿直流电动机的控制，也不需要为解耦而简化交流电动机的数学模型。

MERAK681K10078反馈控制器、分散比例积分控制策略和集中线性二次积分控制策略。另外两种方法在两自由度控制结构中将反馈控制器与基于逆的前馈控制器相结合。此外，这四个概念由汉努斯条件抗饱和机制补充。

MERAK681K10078所提出的四个控制器中的三个明确地考虑了多输入多输出系统的耦合，这允许高性能的控制。此外，所有方法都具有基于受控系统的物理模型的优点。该物理模型的开发和识别是论文的一部分。

MERAK681K10078

控制器的物理基础确保了高水平的可重用性，从而确保了高效的控制器设计过程。提出的控制概念通过测试平台的测量数据进行验证和比较。

MERAK681K10078外部特征是指模块跟外部环境联系的接口(即其他模块或程序调用该模块的方式包括有输入输出参数、引用的全局变量)和模块的功能;内部特征是指模块的内部环境具有的特点(即该模块的局部教据和程序代码)。

MERAK681K10078在实际运行操作中，已经设计了手动操作箱，有控制逻辑线路和手动按钮。手动按钮控制冷风机供电回路继电器吸合或放开，从而达到手动控制冷风机投运或切除的目的。如果操作人员根据负载情况和气候条件，及时投切冷风机，可达到既变压器可靠运行，又能延长冷风机使用寿命，并起到节约电能的目的。

然而，“及时投切”实施起来有困难。操作人员为了变压器可靠运行，习惯上采取冷风机全部投入运行的简化工作模式。这就造成了冷风机过渡运行，容易引发冷风机故障。

MERAK681K10078 控制器模块

The technology of MERAK681K10078 solves the shortcomings of vector control to a large extent, and has been rapidly developed with novel control ideas, simple and clear system structure, excellent dynamic and static performance. At present, this technology has been successfully applied to the high-power AC drive of electric locomotive traction. Direct torque control analyzes the mathematical model of AC motor directly in the stator coordinate system, and controls the flux and torque of the motor. It does not need to equate the AC motor to the DC motor, thus eliminating many complicated calculations in vector rotation transformation. It does not need to mimic the control of a DC motor, nor does it need to simplify the mathematical model of an AC motor for decoupling.

MERAK681K10078 Feedback controller, decentralized proportional integral control strategy and centralized linear quadratic integral control strategy. The other two methods combine a feedback controller with an inverse-based feedforward controller in a two-degree-of-freedom control structure. In addition, these four concepts are complemented by the Hannus conditional anti-saturation mechanism.

Three of the four controllers proposed by the MERAK681K10078 explicitly consider the coupling of multiple input multiple output systems, which allows for high-performance control. In addition, all methods have the advantage of a physical model based on a controlled system. The development and identification of this physical model is part of the thesis.

MERAK681K10078

The physical foundation of the controller ensures a high level of reusability, thus ensuring an efficient controller design process. The proposed control concept is verified and compared by the measurement data of the test platform.

MERAK681K10078 External features refer to the interface between the module and the external environment (that is, the way that other modules or programs call the module includes input and output parameters, referenced global variables) and the function of the module; Internal features refer to the characteristics of the module's internal environment (i.e. the module's local data and program code).

In the actual operation of MERAK681K10078, a manual operation box has been designed, with control logic lines and manual buttons. The manual button controls the chiller power supply circuit relay to pull or release, so as to achieve the purpose of manually controlling the chiller operation or removal. If the operator according to the load and climate conditions, timely cut the chiller, can achieve reliable operation of the transformer, but also to extend the service life of the chiller, and to save energy.

However, the implementation of "timely investment" has been difficult. In order to ensure the reliable operation of the transformer, the operator traditionally adopts a simplified working mode in which the chillers are all put into operation. This causes the transition operation of the chiller, which is easy to cause the failure of the chiller.

MERAK681K10078 控制器模块

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