GB/T 35711-2017 English PDF

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GB/T 35711-2017: Analysis, restrain and measurement of harmonics of DC side of high voltage direct current (HVDC) transmission system
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 35711-2017	999	Add to Cart	7 days	Analysis, restrain and measurement of harmonics of DC side of high voltage direct current (HVDC) transmission system	Valid

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Basic data

Standard ID: GB/T 35711-2017 (GB/T35711-2017)
Description (Translated English): Analysis, restrain and measurement of harmonics of DC side of high voltage direct current (HVDC) transmission system
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: F21
Classification of International Standard: 29.240.01
Word Count Estimation: 50,583
Date of Issue: 2017-12-29
Date of Implementation: 2018-07-01
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 35711-2017: Analysis, restrain and measurement of harmonics of DC side of high voltage direct current (HVDC) transmission system

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Analysis, restrain and measurement of harmonics of DC side of high voltage direct current (HVDC) transimission system ICS 29.240.01 F21 National Standards of People's Republic of China HVDC DC system harmonic analysis, Suppression and measurement guidelines Analysis, restrainandmeasurementofharmonicsofDCsideofhighvoltage directcurrent (HVDC) transimissionsystem (IEEE Std 1124..2003, GuideforanalysisanddefinitionofDCside harmonicperformanceofHVDCtransmissionsystems, MOD) 2017-12-29 Posted 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 research methods 4 5 DC Harmonic Analysis 7 6 Induced noise analysis 20 7 interference suppression measures 32 8 DC Filter Performance Specifications 34 HVDC filter performance measurement Appendix A (Informative) Common-mode transimpedance and differential mode transimpedance calculation example 41 Appendix B (informative) Example calculation of transmission line impact area 42 Appendix C (informative) Examples of anti-jamming filter modification and communication line transformation example 43

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses redrafted law revision IEEEStd1124..2003 "HVDC transmission system harmonic analysis of the DC side And definition. " The main technical differences compared to IEEEStd1124..2003 are as follows. --- Modify the DC filter system research flow (see 4.1), the pre-feasibility study stage, feasibility study stage, contact coordination stage research Research unity for the design phase, in line with our general engineering design process; --- Modify the weighting curve used to measure noise effect (see Figure 1) and noise measurement method (see 9.2) to make it comply with China's noise test The amount of engineering practice. This standard made the following editorial changes. --- The standard name was changed to "HVDC HVDC harmonic analysis, suppression and measurement guidelines." This standard proposed by the China Electricity Council. This standard by the National HVDC Project Standardization Technical Committee (SAC/TC324) centralized. This standard was drafted. State Grid Beijing Institute of Economic and Technology. The main drafters of this standard. Ji Yiming, Ma Weimin, Yang Yiming, Zhang Tao, Wu Fangtao, Xue Yinglin, Li Xuan, Liu Xintao, Wu Yankun, Zhao Zheng. HVDC DC system harmonic analysis, Suppression and measurement guidelines

1 Scope

This standard specifies the LCC DC HVDC converter station DC-side harmonic analysis, suppression and measurement of recommended methods, including Norms related to the guidelines, but also provides a recommended DC filter performance measurement methods and DC transmission line harmonic current sense in the communication line The recommended method of calculating the noise level that should be generated. This standard applies to DC transmission system converter station generated harmonic frequency below 5kHz electromagnetic noise.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 13498 HVDC terms DC Filter Capacitor and Neutral Bus Impact Capacitor for GB/T 20993 HVDC Transmission System GB/T 25308 HVDC transmission system DC filter

3 Terms and definitions

GB/T 13498, GB/T 20993, GB/T 25308 as defined by the following terms and definitions apply to this document. 3.1 DC Harmonic DCharmonics HVDC system DC voltage or current in the AC harmonic components. For an ideal bridge converter, the DC voltage is harmonic Frequency is only an even multiple of the fundamental frequency of the fundamental frequency; however, in practice due to system imbalance and stray capacitance, The remaining even and odd multiples of frequency (non-feature frequency). 3.2 Ideal converter idealconverter Equivalent for the purpose of a balanced sinusoidal voltage, circuit impedance, firing angle, no stray capacitance, DC current smooth inverter. 3.3 Harmonic order harmonicorder DC voltage/current of a harmonic component of its own frequency and AC side of the converter frequency ratio. 3.4 Characteristic/noncharacteristicharmonics In ideal converters, based on the theoretical waveform of the converter DC voltage, harmonics can be expressed in terms of the number of ripple of the converter, Dynamic converter, the number of characteristic harmonics can be described as 6m times, where m is an integer. In general, the characteristic harmonics can be used pm times Description, where p is the number of pulses. The rest of the harmonics that do not meet the above characteristics are non-characteristic harmonics. Non-characteristic harmonics are generally smaller. 3.5 Triple harmonic triplenharmonics The third harmonics of the third harmonic, such as 3,6,9,12,15, can be classified as odd or even times. Even third harmonic harmonic is ......

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