Research on Power Supply Capability Margin of Distribution Network Considering DG and Diversified Loads

doi:10.16628/j.cnki.2095-8188.2021.06.017

Abstract

Abstract:

In order to solve the impact of distributed power sources such as photovoltaic power generation and hydroelectric power generation,as well as diversified loads such as electric vehicles and energy storage components on their power supply capacity and margin after they are connected to the distribution network,firstly,the maximum power supply capacity and margin model of the distribution network is established,and its objective function and constraint conditions are defined.Then,based on the influence of distributed power supply and diversified load on the power supply capacity of the distribution network,the maximum power supply capacity and margin model of the distribution network considering distributed power supply and diversified load is established.Finally,the simplified particle swarm optimization algorithm is used to carry out the calculation.Through a practical distribution network application,it is proved that the algorithm can provide a good reference for distributed power supply and diversified load access network,has the optimization and effectiveness,and lays a solid foundation for the promotion of low-carbon and green power grid work.

Key words: distribution network, power supply capacity, margin, distributed generation(DG), diversified load

CLC Number:

TM732

XU Haidong, HUANG Ming. Research on Power Supply Capability Margin of Distribution Network Considering DG and Diversified Loads[J]. LOW VOLTAGE APPARATUS, 2021, 0(6): 99-105.

Figures/Tables 10

References 15

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时刻	生物质能1 /MW	生物质能2 /MW	时刻	生物质能1 /MW	生物质能2 /MW
1∶00	3.47	3.91	13∶00	4.62	5.43
2∶00	4.71	4.69	14∶00	4.28	2.81
3∶00	4.25	4.62	15∶00	3.78	4.38
4∶00	4.89	4.61	16∶00	5.27	4.88
5∶00	3.21	4.50	17∶00	4.17	5.80
6∶00	3.74	4.72	18∶00	4.65	3.52
7∶00	3.14	4.03	19∶00	5.47	5.14
8∶00	4.55	4.38	20∶00	4.54	2.82
9∶00	3.73	3.45	21∶00	4.77	4.82
10∶00	4.46	2.78	22∶00	4.01	5.09
11∶00	2.48	3.43	23∶00	4.36	4.08
12∶00	2.93	1.78	24∶00	4.42	4.58

时刻	自备电厂1 /MW	自备电厂2 /MW	时刻	自备电厂1 /MW	自备电厂2 /MW
1∶00	4.99	4.31	13∶00	3.82	3.63
2∶00	4.76	5.16	14∶00	6.57	6.18
3∶00	5.35	5.28	15∶00	4.25	5.82
4∶00	4.24	5.64	16∶00	4.71	5.10
5∶00	4.57	5.34	17∶00	5.46	5.29
6∶00	2.92	7.16	18∶00	4.50	5.41
7∶00	4.82	3.70	19∶00	4.05	5.28
8∶00	5.91	4.16	20∶00	5.30	8.19
9∶00	4.31	5.23	21∶00	6.12	5.89
10∶00	6.52	6.26	22∶00	4.22	4.58
11∶00	7.10	7.98	23∶00	5.52	5.45
12∶00	3.34	4.47	24∶00	6.54	5.40