| 引用本文: | 窦晓波,杨磊,马建,陈克绪,全相军.适应分布式光伏动态特性的改进电能计量模型[J].电力自动化设备,2017,37(10): |
| DOU Xiaobo,YANG Lei,MA Jian,CHEN Kexu,QUAN Xiangjun.Improved model for power metering based on dynamic characteristics of distributed photovoltaic power generation[J].Electric Power Automation Equipment,2017,37(10): |
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| 摘要: |
| 针对分布式光伏发电模型，建立了分布式光伏并网信号数学表征式；基于时分割乘法器(TDM)电能计量模型，分析电能计量算法在谐波和电压波动条件下的误差产生理论，设计适应分布式光伏动态特性的有功计量修正模块，给出基于Hilbert变换的无功功率计量方法；将光伏并网信号数学表征式与改进的电能计量模型结合，提出了适应分布式光伏动态特性的改进电能计量模型，通过仿真验证了所提模型的有效性。 |
| 关键词: 分布式光伏发电 谐波分析 电压波动 有功计量 无功计量 |
| DOI：10.16081/j.issn.1006-6047.2017.10.006 |
| 分类号:TM615;TB971 |
| 基金项目:国家重点研发计划资助项目(2016YFB0900404)；国家自然科学基金资助项目(51777031)；江苏省重点研究计划资助项目(BE2015012-1)；国家电网公司科技项目(521820150005) |
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| Improved model for power metering based on dynamic characteristics of distributed photovoltaic power generation |
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DOU Xiaobo1, YANG Lei1, MA Jian2, CHEN Kexu2, QUAN Xiangjun1
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1.School of Electrical Engineering, Southeast University, Nanjing 210096, China;2.State Grid Jiangxi Electric Power Research Institute, Nanchang 330019, China
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| Abstract: |
| Based on distributed PV(PhotoVoltaic) power generation model, the mathematical expressions of distributed PV grid-connected signals are formulated. To analyze theoretical error expressions under harmonic and voltage fluctuation conditions, TDM(Time Division Multiplier) based power metering model is presented. Meanwhile, error correction modules of active power metering based on the harmonic frequency and voltage fluctuation detection are designed, and an improved approach of reactive power metering through Hilbert transform is proposed. An improved model for power metering based on dynamic characteristics of distributed PV power generation is proposed, which is combined with the mathematical models of distributed PV grid-connected signals. Simulative results verify the validity of the proposed model. |
| Key words: distributed photovoltaic power generation harmonic analysis voltage fluctuation active power metering reactive power metering |
