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feat: 添加雷电波阻抗和导线波阻抗参数支持

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在参数类中添加z_0和z_c字段，并在计算最小雷电流时使用这些参数
更新前端表单和类型定义以支持新参数
修改webview应用以接收并处理新参数
This commit is contained in:
dmy
2026-03-03 16:51:28 +08:00
parent fd6684c884
commit 4aa56c71d5
5 changed files with 29 additions and 5 deletions
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6
core.py
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@@ -26,6 +26,8 @@ class Parameter:
Ip_a: float # 概率密度曲线系数a
Ip_b: float # 概率密度曲线系数b
ac_or_dc: str # 交流或直流标识，"AC" 或 "DC"，默认 "AC"
z_0: float # 雷电波阻抗，默认 300
z_c: float # 导线波阻抗，默认 251
def rg_line_function_factory(_rg, ground_angel): # 返回一个地面捕雷线的直线方程
@@ -185,7 +187,7 @@ def solve_circle_line_intersection(
return [_x, _y]
def min_i(string_len, u_ph, altitude: float = 0):
def min_i(string_len, u_ph, altitude: float = 0, z_0: float = 300, z_c: float = 251):
# 海拔修正
if altitude > 1000:
k_a = math.exp((altitude - 1000) / 8150) # 气隙海拔修正
@@ -196,8 +198,6 @@ def min_i(string_len, u_ph, altitude: float = 0):
# u_50 = 1 / k_a * (477 * string_len + 99) # 串放电路径 2000m海拔
# u_50 = 615 * string_len # 导线对塔身放电 1000m海拔
# u_50= 263.32647401+533.90081562*string_len
z_0 = 300 # 雷电波阻抗
z_c = 251 # 导线波阻抗
# 新版大手册公式 3-277
r = (u_50 + 2 * z_0 / (2 * z_0 + z_c) * u_ph) * (2 * z_0 + z_c) / (z_0 * z_c)
# r = 2 * (u_50 - u_ph) / z_c