Balanced type parallel-series hybrid power system

The utility model relates to a hybrid power system of a new energy automobile. A balanced type parallel-series hybrid power system comprises an engine (2), a clutch (3), a main motor (4), a transmission box (5), a rear axle (6), wheels (7), a power storage battery (8) and a power system spindle (10); and the hybrid power system further comprises a BSG (Belt Driven Starter/Generator) and a BSG and main motor driving controller (9), wherein the BSG is connected with the engine, the output of the engine is connected with the main motor by the clutch, the main motor is connected with the power system spindle by the transmission box, the power system spindle is connected with the rear axle so as to drive the rear wheels, the output of the power storage battery is connected with the BSG and main motor controller to supply energy, and the BSG and main motor controller controls the BSG and the main motor. The balanced type parallel-series hybrid power system is simple in structure, compact in distribution and low in system cost, and can promote system running efficiency and regenerative braking energy feedback efficiency.