|
|
|
| Application of the Stochastic Subspace Identification Method in Harmonic Energy Measurement |
| Ma Liang |
| Anqiu Power Supply Company, Shandong Electric Power Corporation, Weifang, Shandong 262100 |
|
|
|
|
Abstract The commonly used of energy measurement method is that measure the fundamental and harmonic energy respectively in the grid. However, there is a difficult issues that how to measure the harmonic energy accurately. The fast fourier transform cannot identify the harmonic phase, and the wavelet transform method is difficult to select of wavelet base wave. This paper used the stochastic subspace identification method (SSI) to identify harmonic parameters. Firstly, identify the harmonic parameters of voltage and current base on SSI in the grid. Then work out the harmonic energy which realize the accurate measurement of harmonic energy. The simulation results show that the SSI could identify harmonic parameters accurately and rapidly, which laid a theoretical foundation for the energy measurement.
|
|
Received: 18 August 2015
Published: 18 August 2015
|
|
|
|
| Cite this article: |
|
Ma Liang. Application of the Stochastic Subspace Identification Method in Harmonic Energy Measurement[J]. Electrical Engineering, 2015, 16(8): 40-44.
|
|
|
|
| URL: |
|
http://dqjs.cesmedia.cn/EN/Y2015/V16/I8/40
|
[1] 张运洲, 白建华. “十二五”电力规划重大问题探析[J]. 能源技术经济. 2011(01): 1-5.
[2] 曹新. 新能源的特点、战略价值与结构调整[J]. 重庆社会科学, 2011(8): 32-35.
[3] 崔开涌. 光伏并网发电系统相关技术研究[D]. 上海:上海大学, 2009.
[4] 孟建辉, 石新春, 付超, 等. 基于PR控制的光伏并网电流优化控制[J]．电力自动化设备, 2014, 34(2): 42-47.
[5] 文小玲, 尹项根, 张哲. 三相逆变器统一空间矢量PWM实现方法[J]. 电工技术学报, 2009, 24(10): 87-93.
[6] 常超, 南海鹏, 余向阳. 三相电压型光伏并网装置控制策略的研究[J]. 计算机测量与控制, 2010, 18(9): 2080-2082.
[7] Byeong-Mun S, Youngroc K, Hanju C, et al. Current harmonic minimization of a grid-connected photovoltaic 500kW three-phase inverter using PR control[C]. Phoenix, AZ: 2011.
[8] 赵清林, 郭小强, 邬伟扬. 单相逆变器并网控制技术研究[J]. 中国电机工程学报, 2007, 27(16): 60-64.
[9] 刘晓庆, 张代润, 谭波. 基于PR控制和谐波补偿的三相光伏并网系统[J]. 可再生能源, 2012(1): 9-12, 16. |
|
|
|
2015, Vol. 16 
