A Method for Improving the Accommodating Capability of Urban Renewable Energy Based on Virtual Power Plant Technology

doi:10.12096/j.2096-4528.pgt.20104

Abstract

Abstract:

In order to address the problem of renewable energy accommodation caused by the integration of large-scale renewable energy power generation into the power system, we proposed a quantitative method for the accommodating capacity of urban renewable energy, and a method to improve the accommodating capacity based on virtual power plants. Firstly, the issue of renewable energy accommodation, and the basic concepts of virtual power plants were introduced. Then, for wind power and photovoltaic power generation, a quantitative analysis of absorption capacity was proposed from the perspective of peak shaving margins. Moreover, the quantitative analysis method of accommodating capacity was developed based on the time of abandonment and the amount of abandonment. Finally, a method of using electric vehicles and flexible loads to improve the absorption capacity of urban renewable energy was proposed and further verified by case studies.

Key words: power system, virtual power plant, renewable energy, electric vehicle, flexible load

CLC Number:

TK01

Wenbo XUAN, Hui LI, Zhongyi LIU, Yeguang SUN, Kai HOU. A Method for Improving the Accommodating Capability of Urban Renewable Energy Based on Virtual Power Plant Technology[J]. Power Generation Technology, 2021, 42(3): 289-297.

Figures/Tables 13

References 20

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月份	非供热机组	供热煤电机组	供热气电机组	外受电	综合最小出力
1	1 209	2 676	1 093	631	5 609
2	1 012	2 016	729	631	4 388
3、11、12	1 012	2 196	911	631	4 751
4、5、9、10	1 012	1 930	663	631	4 237
6、7、8	2 024	2 830	1 424	631	6 910

月份	非供热机组	供热煤电机组	供热气电机组	外受电	综合最小出力
1	1 209	2 676	1 093	631	5 609
2	1 012	2 016	729	631	4 388
3、11、12	1 012	2 196	911	631	4 751
4、5、9、10	1 012	1 930	663	631	4 237
6、7、8	2 024	2 830	1 424	631	6 910

风电装机容量/ MW	风电全年发电量/ (MW·h)	风电全年消纳量/ (MW·h)	弃风率 (按时间)/%	弃风率 (按发电量)/%
4 493	10 427 393	9 715 575	7.70	6.80
3 594	8 341 914	7 999 904	4.50	4.10
3 145	7 299 175	7 076 762	4.00	3.00
2 965	6 882 079	6 697 616	3.00	2.30
2 695	6 256 436	6 119 832	2.40	2.10
1 797	4 170 957	4 124 785	1.00	1.10
449	1 042 739	1 041 045	0.13	0.16

风电装机容量/ MW	风电全年发电量/ (MW·h)	风电全年消纳量/ (MW·h)	弃风率 (按时间)/%	弃风率 (按发电量)/%
4 493	10 427 393	9 715 575	7.70	6.80
3 594	8 341 914	7 999 904	4.50	4.10
3 145	7 299 175	7 076 762	4.00	3.00
2 965	6 882 079	6 697 616	3.00	2.30
2 695	6 256 436	6 119 832	2.40	2.10
1 797	4 170 957	4 124 785	1.00	1.10
449	1 042 739	1 041 045	0.13	0.16

光伏装机容量/ MW	光伏全年发电量/ (MW·h)	光伏全年消纳量/ (MW·h)	弃光率(按时间)/%	弃光率 (按发电量)/%
3 522	10 767 427	10 304 911	6.00
3 307	10 109 418	9 801 019	5.20	3.00
3 272	10 001 743	9 704 941	5.00	2.30
3 013	9 212 132	9 053 511	3.00	2.00
2 935	8 972 856	8 838 425	2.70	1.40
2 739	8 374 665	8 295 321	1.80	0.90
1 565	4 785 523	4 783 428	0.16	0.04
391	1 196 380	1 196 184	0.05	0.01