﻿ 基于瞬时无功功率理论的改进谐波检测APF设计 The Design of a Improved Harmonic Detection Method APF Based on Instantaneous Reactive Power Theory

Transmission and Distribution Engineering and Technology
Vol.06 No.03(2017), Article ID:21948,7 pages
10.12677/TDET.2017.63006

The Design of a Improved Harmonic Detection Method APF Based on Instantaneous Reactive Power Theory

Na Guo, Yu Li

School of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao Shandong

Received: Aug. 18th, 2017; accepted: Sep. 3rd, 2017; published: Sep. 6th, 2017

ABSTRACT

Due to the application of a large number of power electronic devices in the grid, the harmonics problem is serious. The first to solve the harmonics problem is detection of harmonic components in power grid. The basic principle of the instantaneous power system of three-phase-three-wire system in reactive power theory is extended to three-phase-four-wire system by examining the practicability for harmonic detection in low voltage distribution network system with zero sequence current. In the process, for solving a tradeoff between maladjustment and the speed of dynamic response in the conventional detection method, the low-pass filter is substituted by current average method. By using the platform of Matlab to prove its applicability and highly active ability, it aims to prove that the improved method can resolve problems between accuracy and response speed and be more efficient detection of current harmonics. Thus we can calculate the referential current to complete the compensation of grid current.

Keywords:Harmonic Detection, Instantaneous Reactive Power Theory, Current Average Method, Improvement

Copyright © 2017 by authors and Hans Publishers Inc.

1. 引言

2. 瞬时无功理论的应用及推广

2.1. 三相三线制中的应用原理

(1)

(2)

, , (3)

2.2. 三相四线制系统中的推广研究

(4)

(5)

(6)

Figure 1. The operating method of ip-iq

(7)

3. 优化谐波算法分析

3.1. 系统的拓扑结构

3.2. 低通滤波器的改进

(8)

Figure 2. Topology of APF

4. 仿真分析

Figure 3. Sketch of improved harmonic detection method

Figure 4. The load current wave and fundamental wave spectrum

Figure 5. The fundamental and harmonic wave through the method of ip-iq

Figure 6. Phase A waveform of the improved method

Figure 7. The spectrum of using the two methods

5. 结束语

The Design of a Improved Harmonic Detection Method APF Based on Instantaneous Reactive Power Theory[J]. 输配电工程与技术, 2017, 06(03): 42-48. http://dx.doi.org/10.12677/TDET.2017.63006

1. 1. 郜亚洲. 有源电力滤波器谐波检测与控制策略研究[D]: [硕士学位论文]. 江苏: 江南大学, 2015.

2. 2. 王兆安. 谐波抑制和无功功率补偿[M]. 北京: 机械工业出版社, 2016.

3. 3. 徐永海, 姚宝琪. 无功补偿与谐波治理方案设计及案例分析[M]. 北京: 中国水利水电出版社, 2016.

4. 4. 许若冰. 三相四线制并联有源电力滤波器研究[D]: [硕士学位论文]. 合肥: 合肥工业大学, 2015.

5. 5. 鲁杉杉. 三相三线制有源电力滤波器关键技术的研究[D]: [硕士学位论文]. 哈尔滨: 哈尔滨工业大学, 2016.

6. 6. 柯杨斌, 李曼, 许晓莉. 三相ip-iq法谐波电流检测方法研究[J]. 探索科学, 2016(1).

7. 7. Swain, R.S.D., Mohanty, P.K., et al. (2016) Design of Passive Power Filter for Hybrid Series Active Power Filter Using Estimation, Detection and Classification Method. International Journal of Emerging Electric Power Systems, 17, 363-375. https://doi.org/10.1515/ijeeps-2015-0190

8. 8. 黄颖姝. 基于三相四线制的有源电力滤波器研究[D]: [硕士学位论文]. 成都: 西华大学, 2015.

9. 9. 王实. 有源电力滤波器谐波检测与控制算法研究[D]: [硕士学位论文]. 合肥: 合肥工业大学, 2015.

10. 10. Teng, Y., Xiong, C., Li, C., et al. (2015) Harmonic Current Detection Based on the Generalized Instantaneous Reactive Power Theory. IEEE International Conference on Progress in Informatics and Computing, Nanjing, 18-20 December 2015, 468-471.