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参数全部从外部读取

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This commit is contained in:
n3040
2021-12-22 16:11:14 +08:00
parent 2251966b7e
commit 7f03fc2b9c
4 changed files with 450 additions and 238 deletions
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163
core.py
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@@ -7,6 +7,38 @@ gMSP = None
gCount = 1
class Parameter:
h_g_sag: float # 地线弧垂
h_c_sag: float # 导线弧垂
h_whole: float # 杆塔全高
voltage_n: int # 工作电压分成多少份来计算
td: int # 雷暴日
insulator_c_len: float # 串子绝缘长度
string_c_len: float
string_g_len: float
gc_x: [float] # 导、地线水平坐标
ground_angels: [float] # 地面倾角，向下为正
h_arm: float # 导、地线垂直坐标
altitude: int # 海拔，单位米
max_i: float # 最大尝试电流，单位kA
para = Parameter()
def rg_line_function_factory(_rg, ground_angel): # 返回一个地面捕雷线的直线方程
y_d = _rg / math.cos(ground_angel) # y轴上的截距
# 利用公式y-y0=k(x-x0) 得到直线公式
y0 = y_d
x0 = 0
k = math.tan(math.pi - ground_angel)
def f(x):
return y0 + k * (x - x0)
return f
class Draw:
def __init__(self):
self._doc = ezdxf.new(dxfversion="R2010")
@@ -14,7 +46,20 @@ class Draw:
global gCAD
gCAD = self
def draw(self, i_curt, u_ph, rs_x, rs_y, rc_x, rc_y, rg_x, rg_y, rg_type, color):
def draw(
self,
i_curt,
u_ph,
rs_x,
rs_y,
rc_x,
rc_y,
rg_x,
rg_y,
rg_type,
ground_angel,
color,
):
doc = self._doc
msp = doc.modelspace()
global gMSP
@@ -33,8 +78,15 @@ class Draw:
(rc_x, rc_y), circle_intersection, dxfattribs={"color": color}
) # 地线
if rg_type == "g":
msp.add_line((0, rg), (2000, rg), dxfattribs={"color": color})
circle_line_section = solve_circle_line_intersection(rc, rg, rc_x, rc_y)
ground_angel_func = rg_line_function_factory(rg, ground_angel)
msp.add_line(
(0, ground_angel_func(0)),
(2000, ground_angel_func(2000)),
dxfattribs={"color": color},
)
circle_line_section = solve_circle_line_intersection(
rc, rc_x, rc_y, ground_angel_func
)
if not circle_line_section:
pass
else:
@@ -94,40 +146,77 @@ def solve_circle_intersection(
# 圆与捕雷线交点
def solve_circle_line_intersection(radius, rg, center_x, center_y):
distance = distance_point_line(center_x, center_y, 0, rg, 0) # 捕雷线到暴露圆中点的距离
def solve_circle_line_intersection(
radius, center_x, center_y, ground_surface_func
): # 返回交点的x和y坐标
x0 = 0
y0 = ground_surface_func(x0)
x1 = 1
y1 = ground_surface_func(x1)
k = (y1 - y0) / (x1 - x0)
distance = distance_point_line(center_x, center_y, x0, y0, k) # 捕雷线到暴露圆中点的距离
if distance > radius:
return []
else:
r = (radius ** 2 - (rg - center_y) ** 2) ** 0.5 + center_x
return [r, rg]
# r = (radius ** 2 - (rg - center_y) ** 2) ** 0.5 + center_x
a = center_x
b = center_y
c = y0
d = x0
bb = -2 * a + 2 * c * k - 2 * d * (k ** 2) - 2 * b * k
aa = 1 + k ** 2
rr = radius
cc = (
a ** 2
+ c ** 2
- 2 * c * k * d
+ (k ** 2) * (d ** 2)
- 2 * b * (c - k * d)
+ b ** 2
- rr ** 2
)
_x = (-bb + (bb ** 2 - 4 * aa * cc) ** 0.5) / 2 / aa
_y = ground_surface_func(_x)
# 验算结果
equ = (center_x - _x) ** 2 + (center_y - _y) ** 2 - radius ** 2
assert abs(equ) < 1e-5
return [_x, _y]
def min_i(string_len, u_ph):
u_50 = 530 * string_len + 35
# 海拔修正
altitude = para.altitude
k_a = math.exp(altitude / 8150) # 气隙海拔修正
u_50 = 1 / k_a * (530 * string_len + 35) # 50045 上附录的公式，实际应该用负极性电压的公式
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)
return r
def thunder_density(i): # l雷电流幅值密度函数
r = -(10 ** (-i / 44)) * math.log(10) * (-1 / 44)
td = para.td
r = None
if td == 20:
r = -(10 ** (-i / 44)) * math.log(10) * (-1 / 44) # 雷暴日20d
if td == 40:
r = -(10 ** (-i / 88)) * math.log(10) * (-1 / 88) # 雷暴日40d
return r
def angel_density(angle): # 入射角密度函数 angle单位是弧度
r = 0.75 * abs((np.cos(angle - math.pi / 2) ** 3))
r = 0.75 * abs((np.cos(angle - math.pi / 2) ** 3)) # 新版大手册公式3-275
return r
def rs_fun(i):
r = 10 * (i ** 0.65)
r = 10 * (i ** 0.65) # 新版大手册公式3-271
return r
def rc_fun(i, u_ph):
r = 1.63 * ((5.015 * (i ** 0.578) - 0.001 * u_ph) ** 1.125)
r = 1.63 * ((5.015 * (i ** 0.578) - 0.001 * u_ph) ** 1.125) # 新版大手册公式3-272
return r
@@ -136,16 +225,16 @@ def rg_fun(i_curt, h_cav, u_ph, typ="g"):
rg = None
if typ == "g":
if h_cav < 40:
rg = (3.6 + 1.7 ** math.log(43 - h_cav)) * (i_curt ** 0.65)
rg = (3.6 + 1.7 ** math.log(43 - h_cav)) * (i_curt ** 0.65) # 新版大手册公式3-273
else:
rg = 5.5 * (i_curt ** 0.65)
rg = 5.5 * (i_curt ** 0.65) # 新版大手册公式3-273
elif typ == "c": # 此时返回的是圆半径
rg = rc_fun(i_curt, u_ph)
return rg
def intersection_angle(
rc_x, rc_y, rs_x, rs_y, rg_x, rg_y, i_curt, u_ph, ground_surface, rg_type
rc_x, rc_y, rs_x, rs_y, rg_x, rg_y, i_curt, u_ph, ground_angel, rg_type
): # 暴露弧的角度
rs = rs_fun(i_curt)
rc = rc_fun(i_curt, u_ph)
@@ -154,35 +243,38 @@ def intersection_angle(
rs, rc, rs_x, rs_y, rc_x, rc_y
) # 两圆的交点
circle_line_or_rg_intersection = None
rg_line_func = rg_line_function_factory(rg, ground_angel)
if rg_type == "g":
circle_line_or_rg_intersection = solve_circle_line_intersection(
rc, rg, rc_x, rc_y
rc, rc_x, rc_y, rg_line_func
) # 暴露圆和补雷线的交点
if rg_type == "c":
circle_line_or_rg_intersection = solve_circle_intersection(
rg, rc, rg_x, rg_y, rc_x, rc_y
) # 两圆的交点
if circle_line_or_rg_intersection:
(
circle_line_or_rg_intersection_x,
circle_line_or_rg_intersection_y,
) = circle_line_or_rg_intersection
if (
ground_surface(circle_line_or_rg_intersection_x)
> circle_line_or_rg_intersection_y
): # 交点在地面线以下，就可以不积分
# 找到暴露弧和地面线的交点
circle_line_or_rg_intersection = circle_ground_surface_intersection(
rc, rc_x, rc_y, ground_surface
)
# TODO 应该是不存在落到地面线以下的情况，先把以下注释掉
# if circle_line_or_rg_intersection:
# (
# circle_line_or_rg_intersection_x,
# circle_line_or_rg_intersection_y,
# ) = circle_line_or_rg_intersection
# if (
# ground_surface(rg, circle_line_or_rg_intersection_x)
# > circle_line_or_rg_intersection_y
# ): # 交点在地面线以下，就可以不积分
# # 找到暴露弧和地面线的交点
# circle_line_or_rg_intersection = circle_ground_surface_intersection(
# rc, rc_x, rc_y, ground_surface
# )
theta1 = None
np_circle_intersection = np.array(circle_intersection)
theta2_line = np_circle_intersection - np.array([rc_x, rc_y])
theta2 = math.atan(theta2_line[1] / theta2_line[0])
np_circle_line_or_rg_intersection = np.array(circle_line_or_rg_intersection)
if not circle_line_or_rg_intersection:
if rc_y - rc > rg: # rg在rc下面
# 捕捉线太低了，对高塔无保护，θ_1从-90°开始计算。
if rc_y - rc > rg_line_func(rc_x): # rg在rc下面
# 捕捉线太低了，对高塔无保护，θ_1从-90°开始计算，即从与地面垂直的角度开始就已经暴露了。
theta1 = -math.pi / 2
else:
theta1_line = np_circle_line_or_rg_intersection - np.array([rc_x, rc_y])
@@ -202,6 +294,7 @@ def func_calculus_pw(theta, max_w):
if segments < 2: # 最大最小太小，没有可以积分的
return 0
w_samples, d_w = np.linspace(0, max_w, segments, retstep=True)
# 童中宇 750KV信洛Ⅰ线雷电防护性能研究 公式 3-10
cal_w_np = abs(angel_density(w_samples)) * np.sin(theta - (w_samples - math.pi / 2))
r_pw = np.sum((cal_w_np[:-1] + cal_w_np[1:])) / 2 * d_w
return r_pw
@@ -216,7 +309,7 @@ def calculus_bd(theta, rc, rs, rg, rc_x, rc_y, rs_x, rs_y): # 对θ进行积分
# 求保护弧到直线的距离，判断是否相交
d_to_rs = distance_point_line(rs_x, rs_y, line_x, line_y, k)
if d_to_rs < rs: # 相交
# 要用过直线上一点到暴露弧的切线
# 要用过这一点到保护弧的切线
new_k = tangent_line_k(line_x, line_y, rs_x, rs_y, rs, init_k=k)
if new_k >= 0:
max_w = math.atan(new_k) # 用于保护弧相切的角度
@@ -249,15 +342,16 @@ def calculus_bd(theta, rc, rs, rg, rc_x, rc_y, rs_x, rs_y): # 对θ进行积分
# )
# gCAD.save()
pass
# 童中宇 750KV信洛Ⅰ线雷电防护性能研究 公式 3-10
r = rc / math.cos(theta) * func_calculus_pw(theta, max_w)
return r
def bd_area(
i_curt, u_ph, rc_x, rc_y, rs_x, rs_y, rg_x, rg_y, ground_surface, rg_type
i_curt, u_ph, rc_x, rc_y, rs_x, rs_y, rg_x, rg_y, ground_angel, rg_type
): # 暴露弧的投影面积
theta1, theta2 = intersection_angle(
rc_x, rc_y, rs_x, rs_y, rg_x, rg_y, i_curt, u_ph, ground_surface, rg_type
rc_x, rc_y, rs_x, rs_y, rg_x, rg_y, i_curt, u_ph, ground_angel, rg_type
) # θ角度
theta_fineness = 0.01
rc = rc_fun(i_curt, u_ph)
@@ -364,6 +458,7 @@ def circle_ground_surface_intersection(radius, center_x, center_y, ground_surfac
# u_ph是相电压
# insulator_c_len绝缘子闪络距离
def arc_possibility(rated_voltage, insulator_c_len): # 建弧率
# 50064 中附录给的公式
_e = rated_voltage / (3 ** 0.5) / insulator_c_len
r = (4.5 * (_e ** 0.75) - 14) * 1e-2
return r