Reliability Analysis of Different Modes of Distributed Multi-power Open Loop Wiring

doi:10.11985/2020.04.017

Abstract

Abstract:

In order to coordinate the configuration capacity effectively in the power grid, the reliability of different modes of distributed multi-power source open-loop wiring is studied. The multi-power sliding mode controller is used to coordinate the current ratio between the distributed torques, and then the open-loop curvature of the motor structure is calculated. All the distributed nodes in the distribution network environment are reconstructed, and the specific value of the number of open-loop feeders is calculated according to the multi-stage optimization criteria, and the planning and connection mode design of the double-layer distribution network is completed. The experimental results show that the design of this mode has strong adaptability to power grid dispatching. Compared with the “one word” open-loop connection method, the grid capacity after applying the step-by-step two-phase hybrid connection mode is more than 100 TW·h. After the application of the double-layer distribution network planning and connection mode, the conductivity rate of the power grid can reach 90%, and the configuration capacity in the grid environment is properly coordinated, and the application reliability of distributed multi generation appears an obvious upward trend.

Key words: Distributed power source, motor curvature, distribution network reconfiguration

CLC Number:

TM726

LI Xiang, WANG Baowei, OUYANG Weinian, YU Xiang. Reliability Analysis of Different Modes of Distributed Multi-power Open Loop Wiring[J]. Journal of Electrical Engineering, 2020, 15(4): 138-143.

Figures/Tables 7

References 15

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次数	SAIDI/h	AENS/ (MW·h/年/户)	SAIFI/次	ENSI/ (MW·h/年)	ASAI
case1	0.187 426	0.012 80	0.000 793	0.010 77	0.907 036
case2	0.193 311	0.013 11	0.000 822	0.021 86	0.900 021
case3	0.198 110	0.013 27	0.000 793	0.011 31	0.907 007
case4	0.193 618	0.054 67	0.000 821	0.023 19	0.906 029
case5	0.193 289	0.043 21	0.000 822	0.021 16	0.906 024
case6	0.198 308	0.028 02	0.000 487	0.019 71	0.907 014
case7	0.193 208	0.042 71	0.000 822	0.020 98	0.900 022
case8	0.193 208	0.012 71	0.000 822	0.020 98	0.900 022

试验时间/min	电网容量水平/(TW·h)		平均值/(TW·h)
5	98.3	—	100.7
10	99.2	上升
15	99.7	上升
20	100.1	上升
25	100.5	上升
30	101.6	上升
35	101.5	下降
40	101.7	上升
45	101.6	下降
50	101.5	下降

试验时间/min	电网容量水平/(TW·h)		平均值/(TW·h)
5	64.6	—	59.6
10	52.1	下降
15	63.9	上升
20	50.8	下降
25	60.7	上升
30	60.7	稳定
35	59.5	下降
40	59.5	稳定
45	62.2	上升
50	62.2	稳定