Abstract: Distributed wind power-battery energy system （DWPBES） is a new cooperation form of energy storage and wind power, whose control system operating environment is poor, but requires high reliability. In order to ensure the stable operation of DWPBES, this paper designs the hardware of the control system of the DWPBES in a wind farm in Inner Mongolia, based on the principle of safety, performance, hardware maturity and data storage reliability. The fan-less industrial personal computer （IPC） is adopted as main controller. The data acquisition card is used to collect field signal. And this paper designs the voltage and current signal conditioning circuit to realize the isolated input of the field signal. We realize the three-stagessignal isolation for the main controller and field signal, which can ensure the safety of equipment and personnel. We adopt the uninterrupted power supply（UPS）to ensure the power down safety of control system.The designs above have been implemented and successfully operatedin a wind farm, which can be a reference for the popularization and application of the wind power-battery energy storage system.

Key words: distributed wind power-battery energy storage system;coordination of wind power and battery energy storage, battery energy storage;signal condition of control system;data acquisition