Discussion on Measurement of Harmonic Distortion Rate of Power Conversion System

doi:10.16628/j.cnki.2095-8188.2021.07.009

Abstract

Abstract:

There are many items of types test for power conversion system,and the relevant standards lack the necessary provisions for the methods and contents of some test items.As a result,different institution and person may cause large differences in the actual test of the project.This article mainly discusses some abnormal situations that occur in high-power power conversion system due to different loads and different wiring methods of test instruments during the test of total harmonic distortion rate,aiming to attract the attention of inspectors and provide reference for product improvement and standard improvement of power conversion system.

Key words: power conversion system (PCS), type test, total harmonic current distortion rate, total harmonic voltage distortion rate

CLC Number:

TM46

YANG Yang, XU Xianqing, SHI Guifeng. Discussion on Measurement of Harmonic Distortion Rate of Power Conversion System[J]. LOW VOLTAGE APPARATUS, 2021, 0(7): 51-55.

Figures/Tables 11

References 9

[1]	杨征. 500 kW储能变流器控制技术研究[D]. 上海:上海交通大学, 2016.
[2]	袁泉. 大功率储能变流器的研究[D]. 北京:北京交通大学, 2012.
[3]	张霞, 殷志柱, 唐丽婵, 等. 基于储能PCS的测试系统及测试方法:CN106959418A[P]. 2017-07-18.
[4]	郭鑫鑫, 李新强. 分布式储能变流器检测技术研究[J]. 电器与能效管理技术, 2018(15):75-78.
[5]	吕海超. 两级变换模块化储能变流器样机研制[J]. 电器与能效管理技术, 2019(20):58-63.
[6]	李建林, 袁晓冬, 郁正纲, 等. 利用储能系统提升电网电能质量研究综述[J]. 电力系统自动化, 2019, 43(8):15-25.
[7]	黄松柏. 分布式发电系统中的储能逆变器技术研究[J]. 电力电子技术, 2014, 48(11):48-50.
[8]	丁超, 潘超, 黄海宏. 蓄电池储能变流级联系统交互分析[J]. 电器与能效管理技术, 2019(23):21-26,33.
[9]	来小康, 闫涛, 刘志波, 等. 主动配电网中储能变流器控制策略综述[J]. 电器与能效管理技术, 2016(14):15-21.

标准编号	标准名称	谐波测试工况及限值要求
标准编号	标准名称	谐波电压	谐波电流
NB/T 33014—2014	电化学储能系统接入配电网运行控制规范	电化学储能系统接入配电网后,公共连接点的电能质量应满足NB/T 33015的要求
NB/T 33015—2014	电化学储能系统接入配电网技术规定	电化学储能系统接入配电网后,公共连接点处的谐波电压和谐波电流分量应满足GB/T 14549的相关规定
GB/T 34120—2017	电化学储能系统储能变流器技术规范	在离网模式下,在额定空载和额定阻性负载(平衡负载)条件下,PCS交流侧输出电压总谐波畸变率不应超过3%	PCS在额定并网条件下,交流侧电流总谐波畸变率应满足国家标准GB/T 14549的规定。
GB/T 36547—2018	电化学储能系统接入电网技术规定	电化学储能系统接入公共连接点的谐波电压应满足GB/T 14549的要求	未作规定
GB/T 36558—2018	电力系统电化学储能系统通用技术条件	电化学储能系统接入公共连接点的谐波电压应满足GB/T 14549的要求	未作规定

工作模式	输出功率/kW	THDI/%
工作模式	输出功率/kW	A相	B相	C相
恒流模式充电	158	4.47	5.30	5.14
	315	1.68	1.61	2.02
	473	1.14	1.16	1.43
	630	1.02	1.23	1.60
	恒功率模式放电	158	3.92	4.10	3.88
315		1.83	1.56	2.17
473		1.28	1.51	1.13
630		1.07	1.26	1.12

工作模式	负载大小/kW	THDU/%
工作模式	负载大小/kW	A相	B相	C相
离网运行	0	1.32	1.45	1.21
	158	12.60	12.60	12.30
	315	12.40	11.50	11.20
	473	11.30	12.70	14.60
	630	18.00	18.20	18.10

工作模式	负载大小/kW	THDU/%
工作模式	负载大小/kW	A相	B相	C相
离网运行	0	1.32	1.45	1.21
	158	2.62	2.61	2.54
	315	2.19	1.89	2.37
	473	2.64	2.71	2.65
	630	1.23	1.19	1.21

[1]	WANG Zicheng, LAI Yaokang, WANG Haonan, CAO Yufeng, YE Xuerong, ZHAI Guofu. Equivalent Modeling Method of SiC MOSFET Based on Graphical Modification [J]. LOW VOLTAGE APPARATUS, 2022, 0(4): 6-11.
[2]	JIN Ningde, WANG Haixin, HUANG Haihong. Modeling and Compensation Parameters Design of Isolated Half Bridge Circuit [J]. LOW VOLTAGE APPARATUS, 2022, 0(3): 45-50.
[3]	ZHENG Kun, SONG Chao, LIU Song. Modeling and Loop Design of Double Closed-Loop Synchronous Rectifier Circuit Under Digital Control [J]. LOW VOLTAGE APPARATUS, 2022, 0(3): 51-55.
[4]	TAN Fenglei, GAO Shiyu, GONG Chenlong. Application of Three-Level SVPWM Without Large Vectors in Direct Torque Control System [J]. LOW VOLTAGE APPARATUS, 2022, 0(3): 90-95.
[5]	SHI Wei, ZHAO Qiliang. Focus Bypass Type Parallel UPS Phase Lock Method [J]. LOW VOLTAGE APPARATUS, 2021, 0(12): 64-66.
[6]	ZHANG Deyang, CHANG Wenjing, HUANG Haihong. VIENNA Rectifier Midpoint Potential Fluctuation Principle and Balance Method [J]. LOW VOLTAGE APPARATUS, 2021, 0(12): 47-51.
[7]	ZHANG Henghao, SONG Haoyi, HUANG Chao. Design of Self-driven Synchronous Rectification for Flyback Converter [J]. LOW VOLTAGE APPARATUS, 2021, 0(11): 80-84.
[8]	ZHANG Zhong, XU Yuzhen. Zero Ripple High Gain Combined Sepic Converter Based on Coupled Inductor [J]. LOW VOLTAGE APPARATUS, 2021, 0(11): 73-79.
[9]	MA Chuangming, HUANG Haihong, CHANG Wenjing. Parameter Optimization Design of LLC Resonant Converter [J]. LOW VOLTAGE APPARATUS, 2021, 0(11): 67-72.
[10]	ZHANG Chao, ZHANG Xin, XIE Zhanhong. Optimization of Hybrid Energy Storage Strategy for Electric Vehicle Based on Super Capacitor [J]. LOW VOLTAGE APPARATUS, 2021, 0(11): 58-66.
[11]	BAI Shenyi, YU Gaowang, YANG Guixing, XU Shenglong, WEI Yanwei. Development of Fast Power Control Device for Grid Connection Point of new Energy Station [J]. LOW VOLTAGE APPARATUS, 2021, 0(8): 76-81.
[12]	WANG Xiaoping, CHEN Yanlian, MAO Xingkui. Design of Energy Storage Power Converter [J]. LOW VOLTAGE APPARATUS, 2021, 0(8): 70-75.
[13]	XU Dong, WANG Ying. Research on Pulse Width Modulation Strategy of High Power Two-level Voltage Source Inverter [J]. LOW VOLTAGE APPARATUS, 2021, 0(8): 64-69.
[14]	ZHANG Jian, ZHEN Chao, LU Bin, WEI Cunjin, NIU Liqun, JI Kun. Research on Checking Method of Circuit-Breaker Breaking Capacity Based on Half Wave Energy of Last Current Loop [J]. LOW VOLTAGE APPARATUS, 2021, 0(7): 56-60.
[15]	SONG Zihao, WU Guichu, ZHANG Shangcong, CHEN Chong. Design and Shielding Effectiveness Simulation of Anechoic Chamber with Multi-Magnetic Power Source [J]. LOW VOLTAGE APPARATUS, 2021, 0(7): 61-65.