diff --git a/assets/image_20260710150426596.png b/assets/image_20260710150426596.png
new file mode 100644
index 0000000..f8abf38
Binary files /dev/null and b/assets/image_20260710150426596.png differ
diff --git a/lib/report_generator.py b/lib/report_generator.py
index 6d61e29..16003f1 100644
--- a/lib/report_generator.py
+++ b/lib/report_generator.py
@@ -205,8 +205,16 @@ def generate_daily_report(config_id, start_time=None, end_time=None):
         print(f"  时间范围: {start_time_str} 至 {end_time_str}")
         print(f"  选择字段: {len(selected_fields)} 个")
         
-        # 构建查询SQL
-        fields_str = ', '.join(selected_fields)
+        # 构建查询SQL - 过滤掉虚拟字段（时段电量等）
+        # 虚拟字段不是数据库表中的实际字段，需要动态计算
+        TIME_PERIOD_FIELDS = {'sharp_electricity', 'peak_electricity', 'flat_electricity', 'valley_electricity'}
+        db_fields = [f for f in selected_fields if f not in TIME_PERIOD_FIELDS]
+        
+        # 确保至少有 order_no 字段用于关联分时数据
+        if 'order_no' not in db_fields:
+            db_fields.append('order_no')
+        
+        fields_str = ', '.join(db_fields)
         
         # 检查是否为多选值（逗号分隔）
         split_values = [v.strip() for v in config['split_value'].split(',') if v.strip()]