基于DSP的低压动态无功补偿控制器

为了有效改善低压电网的电能质量,阐述了低压TSC动态无功补偿系统控制器的硬件组成及软件结构。采用双CPU结构,有效地提高了其性能;在系统硬件上采用数字信号处理器（DSP）TMS320LF2812处理器进行控制,具有控制运算速度高、实时性好的特点,在软件上,采用C语言编程,遵循模块化设计原则,提高了系统的通用性和维护的简易程度;在投切原则上,采用综合无功功率控制策略,避免了轻载振荡。实际试验数据表明,该控制器能有效地提高补偿效果。

Controller of low voltage dynamic var compensator based on DSP

Aiming at the improvement of the power quality of low-voltage power grid effectively, the constitutes of the device hardware and the software structure were introduced. Two CPU were used to enhance the capability in the device. The digital signal processing（DSP） TMS320LF2812 was used as the device＇s hardware core, which had many merits such as high operating speed and high real-time. The assemble language was used in the software design, the universal trait of the program and simplify the device＇s maintenance were improved. Mention of switching law, the control method of considering reactive power was used, and the oscillation on the condition of light loading was avoided. The results indicate that the controller can improve the performance of the compensation effectively.