| 乘法型D/A转换器交流有功功率的测量方法 |
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| 引用本文： | 郭松林,郭明良.乘法型D/A转换器交流有功功率的测量方法[J].黑龙江科技学院学报,2008,18(5). |
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| 作者姓名： | 郭松林 郭明良 |
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| 作者单位： | 黑龙江科技学院,电气与信息工程学院,哈尔滨,150027 |
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| 基金项目： | 黑龙江省教育厅科学技术研究项目 |
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| 摘 要： | 为了正确反映电力系统的状况,提出了一种高准确度的工频交流有功功率的测量方法.该方法由乘法型D/A转换器构成四象限乘法器,通过理论推导得到了有功功率的理论表达式,分析了测量方法误差及影响测量准确度的因素.对测量误差估计公式的MATLAB仿真表明:有功功率的测量方法误差仅为±0.00370%,远小于国际标准的0.01%.根据该方法,可构造50Hz 工频高准确度的交流有功功率标准表.
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| 关 键 词： | 有功功率 乘法型D/A转换器 四象限乘法器 |
Measuring method of AC active power basing on multiplying D/A converter |
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| GUO Songlin,GUO Mingliang.Measuring method of AC active power basing on multiplying D/A converter[J].Journal of Heilongjiang Institute of Science and Technology,2008,18(5). |
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| Authors: | GUO Songlin GUO Mingliang |
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| Institution: | GUO Songlin,GUO Mingliang(College of Electric , Information Engineering,Heilongjiang Institute of Science , Technology,Harbin 150027,China) |
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| Abstract: | This paper proposes a high precision measurement method of AC active power,designed to accurately reflect the electric energy consuming of the electric power bureau.The method involves the construction of the Four quarter multiplier based on the multiplying D/A Converter,the developemnt of an academic expression of the experimental active power according to the frame of reference deducion,and the analysis of the error of method and the factors influencing measurement accuracy quantitatively and qualitativel... |
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| Keywords: | active power multiplying D/A converter four quarter multiplier |
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