基于PCI总线的SVC控制器数据传输方案

Data Transmission Schemes of SVC Controller Based on PCI Bus Structure

根据静止无功补偿器(SVC)控制系统对数据采集、计算的快速性要求,以及晶闸管移相控制的特殊性,在工程实际应用中,一般将该系统分为数据采集与控制两大部分。文中针对两者数据交换瓶颈,选择外部设备互连(PCI)总线技术,构建了基于PCI总线结构和双PCI卡实现的快速、实时SVC灵活控制平台。探索了内含DSP320C6711和PCI9030控制器的数据采集卡与内含PCI9054、双口RAM和MPU的SVC控制卡连接的一种硬件接口方法;并通过设计和编写接口应用驱动程序,实现了基于PCI总线方式下数据传输的中断和查询两种方案。实验证明了这种方案的优越性。

In order to meet the requirements of data acquisition and fast calculation, as well as the especial phase-shifting control of Thyristors for Static VAR Compensator (SVC) control system, the SVC control system is divided into two large parts as data acquisition and control part during the practical engineering applications. For solving the bottleneck problems of data exchanges between the both two parts, a fast and real-time flexible control platform of SVC base on the PCI bus structure and double PCI cards is constructed by choosing the PCI bus technology. The method are explored to design the hardware interface between the Data acquisition card embedded with DSP320C6711, PCI9030 and the controller card embedded with PCI9054, double-port RAM, MPU. By designing and compiling interface application driving program, the interrupt and query schemes of data transmission based on PCI bus are realized. Experiments prove that the proposed schemes have the superiority.