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摘要:
分布式电源以其环保、高效及灵活的优点逐渐渗透到电网当中，也给输电网与配电网的发展规划带来一定的影响。从输电网规划建设、配电网的供电可靠性及继电保护等方面讨论了南方电网中分布式电源接入对电网的影响，为南方电网未来分布式电源的快速发展提供了重要的参考。 Abstract:Distributed Generation(DG) gradually infiltrates into the power grid with the advantages of environmental protection, high efficiency and agility, but also brings certain impact on the development planning of power transmission network and distribution network.This paper discusses the impact of DG integrating into the South China Power Grid in the construction planning of power transmission network, power supply reliability of distribution network, relay protection and so on. The research results provide important references and suggestions for the rapid development of DG in China Southern China Power Grid. -
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图 1 考虑电压质量约束的多回线接入仿真模型
Figure 1. Multi Loop Access Simulation Model Considering the Constraint of Voltage Quality
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图 2 考虑短路电流限制的多回线接入仿真模型
Figure 2. Multi Loop Access Simulation Model Considering the Restriction of Short Circuit Current
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图 3 光伏设备及储能设备配合接线示意图
Figure 3. Wiring Diagram of Photovoltaic Device and Storage Device
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图 5 南方五省区煤电标杆电价
Figure 5. Benchmarking Coal Electricity Price of the Southern Five Provinces
表 1 南方五省燃气发电情景规模表
Table 1
Size Table of Gas Power Generation in the Southern Five Provinces GW 情景类型 2020 2030 2050 情景A(保守型) 2.7 5.4 9.55 情景B(稳健型) 6.3 11.6 17.4 情景C(发展型) 10.5 21.0 32.0 情景D(乐观型) 21.0 41.0 78.5 
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表 2 南方五省光伏发电情景规模表
Table 2
Table of Gas Power Generation in the Southern Five Provinces GW 方案 2013 2020 2030 低方案(1) 0.284 3.13 6.05 高方案(2) 0.284 5.55 10.71
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表 3 分布式电源对电网影响表(广东省)
Table 3
Influence Table of Distributed Power on the Grid (Guangdong Province) 电网投资的减少情景 年份 总负荷/% 电量供应/% 变电容量/(104 kVA) 输电线路/ km 500 kV 220 kV 500 kV 220 kV 情景 2020 1.1 1 255 323 156 147 A-1 2030 1.8 1.7 510 646 311 295 情景 2020 2.9 2.8 645 817 394 373 B-2 2030 4.6 4.4 1 260 1 596 796 728 情景 2020 4.1 4.1 915 1159 559 529 C-2 2030 6.5 6.7 1 800 2 280 1 099 1 040 情景 2020 7.1 7.6 1 590 2 014 971 919 D-2 2030 11.4 12.4 3 150 3 990 1 923 1 820
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表 4 不同情景下电力成本影响表
Table 4
Effection Table of the Electricity Cost Under Different Scenarios 亿元 电价 年份 情景A-1 情景B-2 情景C-2 情景D-2 标杆 2020 59.0 129.4 190.7 357.3 电价 2030 119.7 255.5 378.2 692.3 预测 2020 66.3 149.4 226.2 435.9 电价 2030 161.8 359.3 556.4 1 049.8
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表 5 不同情景下节能减排影响表
Table 5
Effection Table of Energy Saving and Emission Reduction Under Different Scenarios 104 t 减排型 年份 情景A-1 情景B-2 情景C-2 情景D-2 CO2排放 2020 59.0 129.4 190.7 357.3 减少量 2030 119.7 255.5 378.2 692.3 标准煤 2020 66.3 149.4 226.2 435.9 减少量 2030 161.8 359.3 556.4 1 049.8
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