基于瞬时无功功率理论的ip-iq算法中的SPLL改进研究
谐波电流检测是有源电力滤波器的关键环节之一,采用锁相环准确锁定电网电压频率是保证正确检测谐波电流的重要前提。基于瞬时无功功率理论ip-iq谐波电流检测算法,详细研究了应用于谐波检测环节的各种软件锁相环的原理及优缺点,并在此基础上,对基于DSC（Delay Signal Cancellation）模块的三相软件锁相环进行了改进。仿真和实验结果表明基于DSC模块的新型三相软件锁相环SPLL（Software Phase-locked Loop）算法实现简单,运算速度快,能够准确锁定相位信息。...
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| Published in | 电子技术应用 Vol. 43; no. 3; pp. 145 - 148 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
首钢京唐钢铁联合有限责任公司热轧作业部,河北唐山,063210%中国矿业大学信息与电气工程学院,江苏徐州,221116
2017
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0258-7998 |
| DOI | 10.16157/j.issn.0258-7998.2017.03.036 |
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| Summary: | 谐波电流检测是有源电力滤波器的关键环节之一,采用锁相环准确锁定电网电压频率是保证正确检测谐波电流的重要前提。基于瞬时无功功率理论ip-iq谐波电流检测算法,详细研究了应用于谐波检测环节的各种软件锁相环的原理及优缺点,并在此基础上,对基于DSC（Delay Signal Cancellation）模块的三相软件锁相环进行了改进。仿真和实验结果表明基于DSC模块的新型三相软件锁相环SPLL（Software Phase-locked Loop）算法实现简单,运算速度快,能够准确锁定相位信息。 |
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| Bibliography: | Harmonic Current Detection is one of the key link of active power filter. The principal premise of ensuring correct de- tection of harmonic current is locking the network voltage frequency accurately by using phase-locked loops. The thesis studied in detail the various SPLL theories that applied to the link of harmonic detection and their advantages and disadvantages on the basis of instantaneous reactive power ip-iq harmonic current detecting method, upon which improvement has been made in the aspect of three-phrase software phrase-locked loop of DSC module. Simulation and experimental result suggest that the new pattern of three- phrase SPLL method implements simple, operates fast, and can lock phase information accurately. harmonic detection ; instantaneous reactive power theory ; ip-iq method ; software phase-locked loop Gao Wenhua1, Zhou Juan2, Wang Ziji2 （1.Hot Rolling Operations Department, Shougang Jingtang United Iron＆Steel Co., Ltd ,Tangshan 063210, China; 2.School of Information and Electrical Engine |
| ISSN: | 0258-7998 |
| DOI: | 10.16157/j.issn.0258-7998.2017.03.036 |