Table 7 Multi-stage planning results in Case IV

AC-DC converter (MVA)

Node 8

1.54

1.52

1.77

2.04

Node 19

0.55

0.59

2.12

2.13

Node 27

–

–

1.37

5.19

DC-DC converter (MW)

1.50

1.83

4.39

7.99

Storage battery (MWh)

4.24

5.44

16.77

45.15

Line construction cost (10⁴RMB)

8.21

8.21

10.97

10.97

Total investment cost (10⁴RMB)

154.33

171.69

304.91

689.46

Total cost (10⁴RMB)

2711.29

2627.29

2248.84

1816.72