| 引用本文: | 高菲,宋晓辉,李建芳,张瑜,马维青,贾志义.谐波约束下的配电网接纳分布式电源能力分析[J].电力自动化设备,2018,(10): |
| GAO Fei,SONG Xiaohui,LI Jianfang,ZHANG Yu,MA Weiqing,JIA Zhiyi.DG integration capability of distribution network considering harmonic constraints[J].Electric Power Automation Equipment,2018,(10): |
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| 摘要: |
| 逆变型分布式电源(DG)产生的谐波直接影响了DG在配电网的渗透率，从电压畸变和电流畸变2个制约因素分析配电网中压馈线对DG接纳能力的影响。推导DG和负荷分布位置对馈线电压畸变率的作用规律，以及考虑电流畸变率影响时最不利条件下的渗透率计算公式。提出基于随机场景的仿真计算方法，针对随机场景集合采用试探寻优的方法计算渗透率。算例验证了所提方法的有效性。 |
| 关键词: 分布式电源 接纳能力 配电网 谐波 随机场景 |
| DOI：10.16081/j.issn.1006-6047.2018.10.003 |
| 分类号:TM761 |
| 基金项目:国家自然科学基金资助项目(51377148)；国家电网公司科技项目(电网接纳分布式电源能力分析评估技术深化研究)(PD71-16-004) |
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| DG integration capability of distribution network considering harmonic constraints |
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GAO Fei1, SONG Xiaohui1, LI Jianfang1, ZHANG Yu1, MA Weiqing2, JIA Zhiyi2
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1.Electric Power Research Institute, Beijing 100192, China;2.Yangquan Power Supply Company of State Grid Shanxi Electric Power Company, Yangquan 045000, China
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| Abstract: |
| The harmonics generated by the inverter-interfaced DGs(Distributed Generators) directly influence the penetration of DG in distribution network. The impact of medium-voltage feeder of distribution network on DG integration capability is analyzed from two restrictive factors, i. e. voltage distortion and current distortion. The functional rule of DG and load distribution position on voltage distortion of the feeder and the calculation formula of penetration under the worst condition with the consideration of current distortion are deduced. A simulation method based on random scenarios is proposed, which adopts the heuristic optimization to calculate the penetration according to the random scenario set. Case study verifies the effectiveness of the proposed method. |
| Key words: DG integration capacity distribution network harmonic random scenarios |
