一种适应电源频变的晶闸管三相全控整流桥α角控制器
一种适应电源频率变化的晶闸管三相全控整流桥α角控制器,以单片微处理器芯片为核心,通过算法软件处理,跟踪电源频率变化,最终以脉冲列调制双脉冲方式产生6相触发脉冲。展示了系统的基本硬件结构,着重介绍了应对电源频率变化的处理方法,分析了误差、适应电源频率的上、下限,给出了整流桥交流侧电源频率不相同情况下的触发脉冲输出结果。微处理器的嵌入成为系统的关键,不仅在常规工频工况下能发挥其精度、可靠性、灵活性方面的优势,对于一定范围的非标准工频、频率变化的供电系统具有实时跟踪电源周期变化、自动修正α角误差,保证整流桥触发的正确性,其意义体现在非大电网环境下,诸如未并网的柴油机发电、风电、太阳能发电、机械储能发...
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| Published in | 电测与仪表 Vol. 52; no. 21; pp. 102 - 105 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
常州大学怀德学院,江苏常州,213012%常州大学信息科学与工程学院,江苏常州,213164
2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-1390 |
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| Summary: | 一种适应电源频率变化的晶闸管三相全控整流桥α角控制器,以单片微处理器芯片为核心,通过算法软件处理,跟踪电源频率变化,最终以脉冲列调制双脉冲方式产生6相触发脉冲。展示了系统的基本硬件结构,着重介绍了应对电源频率变化的处理方法,分析了误差、适应电源频率的上、下限,给出了整流桥交流侧电源频率不相同情况下的触发脉冲输出结果。微处理器的嵌入成为系统的关键,不仅在常规工频工况下能发挥其精度、可靠性、灵活性方面的优势,对于一定范围的非标准工频、频率变化的供电系统具有实时跟踪电源周期变化、自动修正α角误差,保证整流桥触发的正确性,其意义体现在非大电网环境下,诸如未并网的柴油机发电、风电、太阳能发电、机械储能发电等孤立的交流电源场合晶闸管三相全控整流桥均能正常、可靠地工作。 |
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| Bibliography: | variable frequency, single chip microcomputer, phase-shifted trigger, thyristor, full controlled bridge rectifier 23-1202/TH In this paper, an aangle controller which adapted to the variation of power frequency is applied to the thyristor three-phase full controlled bridge rectifier. With a single-chip microprocessor chip as the core ,through the software process- ing,tracking the variation of power frequency, the controller generates 6 phase trigger pulse in the double pulse modulation. The paper shows the basic hardware structure of the system ,emphatically introduces the processing methods to deal with the variation of power frequency, analyzes the error and the top and bottom limitation adapting to the frequency of the power supply,and provides the output results when AC side rectifier bridge power supply under the condition of different frequen- cy. The embedded microprocessor is the key of the system. Its accuracy,reliability and flexibility are excellent in the con- ventional power condition. Furthermore |
| ISSN: | 1001-1390 |