Power Supply Ensuring Measures and Implications of Foreign Countries' Power Systems with High Proportion of New Energy

doi:10.11930/j.issn.1004-9649.202310101

Abstract

Abstract:

With the global energy transformation and the rapid development of new energy, the power supply security issue of the power system with high proportion of new energy has become increasingly prominent and attracted focal attentions in some countries. Firstly, we analyzed in detail the power output characteristics of new energy and its challenges to power supply security in power balance and load support degree. Secondly, by selecting Germany, the United States, Japan and other typical countries with a relatively high proportion of new energy development, we made an in-depth study of their practical experience of ensuring the safe and reliable power supply in the power system with a high proportion of new energy from three aspects of policies and regulations, monitoring and early warning, dispatching and operation management. Finally, based on the actual situation of China's new power system construction, we proposed the implications for China's new energy development, which can provide a certain reference for China's power supply security.

Key words: energy transition, new energy, power system, power supply, ensuring measures

Xiaoning YE, Caixia WANG, Qionghui LI, Chao YANG. Power Supply Ensuring Measures and Implications of Foreign Countries' Power Systems with High Proportion of New Energy[J]. Electric Power, 2024, 57(4): 61-67.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202310101

https://www.electricpower.com.cn/EN/Y2024/V57/I4/61

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References 32

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停电事故	事故影响	新能源影响	新能源装机比例/%
2017年2·8南澳大停电	停电30万kW，影响9万家庭	停电前1 h，新能源出力骤减63%	45.6
2020年8月美国加州高温停电	停电100万kW，影响330万人	停电前1 h，新能源出力骤减54%	27.0
2021年2月，美国得州寒潮停电	停电1650万kW，影响450万人	大量风电机组退出运行，损失64%的风电发电容量	30.5

停电事故	事故影响	新能源影响	新能源装机比例/%
2017年2·8南澳大停电	停电30万kW，影响9万家庭	停电前1 h，新能源出力骤减63%	45.6
2020年8月美国加州高温停电	停电100万kW，影响330万人	停电前1 h，新能源出力骤减54%	27.0
2021年2月，美国得州寒潮停电	停电1650万kW，影响450万人	大量风电机组退出运行，损失64%的风电发电容量	30.5

输入电量/(万kW·h)		输出电量/(万kW·h)
发电厂X	115.3	用户A	1.4
发电厂Y	42.2	用户B	11.2
从S购买	10.0	向C出售	90.0
从T购买	5.1	向D出售	70.0
合计	172.6	合计	172.6

输入电量/(万kW·h)		输出电量/(万kW·h)
发电厂X	115.3	用户A	1.4
发电厂Y	42.2	用户B	11.2
从S购买	10.0	向C出售	90.0
从T购买	5.1	向D出售	70.0
合计	172.6	合计	172.6

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