## 1 Introduction
Mawson Station of Australia has built two 300 KW wind turbines to provide continuous power since 2003. On Ross Island in Antarctica, a wind farm has been used to realize 100% of the energy supply of Scott Base of New Zealand and part of the power requirements of McMurdo Station of United States of America. For Princess Elisabeth Station of Belgium, 300 m\({}^{2}\) solar panels have been installed and can generate 49 MWh [10]. Syowa Station of Japan has built 55 KW of solar panels to produce an annual output of 44,000 KW h for accommodating up to 110 people in the summer and 28 people in the winter [11]. For a hybrid PV/wind system in Polar Regions, an energy storage system (ESS) plays an important role in storing excess energy and releasing the power as a reliable back-up to the power system for unpredictability and weather dependence of wind and solar energy. An integrated wind-PV hybrid system with a battery ESS was proposed and a power management strategy of this system can realize rapid control of the outputs of wind and PV power for regulating the battery current [12]. In the design of an isolated renewable hybrid power system, a methodology of battery sizing was used to determine the sizing curve and the feasible design space [13]. Using solar, wind, fuel cell, and batteries as input sources may be able to meet the load demand and an energy management strategy is proposed for a DC microgrid [14; 15]. A case study of a stand-alone photovoltaic (PV) system was proposed and the environmental impact of batteries used in the renewable energy system was evaluated [16]. Due to the different seasonal changes of power production and demand, the design of renewable energy system should involve the use of surplus energy [17]. A multi-energy system with seasonal storage was designed and optimized in terms of total annual costs and carbon dioxide emissions [18]. In this study, a new standalone renewable energy system of the Chinese Zhongshan Station in Antarctica was designed to realize an environmentally friendly energy supply and to obtain high power generation efficiency. The physical model and mathematical model of the standalone renewable energy system were proposed [19]. Lead-acid batteries were selected as an energy storage system for the standalone hybrid windsolar system and a temperature control strategy was adopted to prevent the battery from low-temperature loss of the battery capacity. Energy management strategy of the power system was also proposed based on results of low-temperature characteristics of battery. The whole power system is broadly composed of 13 parts: (1) a power generator (wind turbines and PV array), (2) an uploading circuit, (3) a three-phase rectifier bridge, (4) an interleaved Buck circuit, (5) a DC/DC conversion circuit, (6) a switch circuit, (7) a power supply circuit, (8) an amplifier, (9) a driver circuit, (10) a voltage and current monitoring, (11) a load, (12) battery units, (13) a control system. A case study of the operational results of the standalone renewable energy system was examined to evaluate the technical feasibility and stability. Analysis of simulation operation results, emission reduction and costs and benefits of renewable energy applications in Antarctica were completed. In these contexts, this paper focuses on exploring a standalone renewable energy system for Zhongshan Station. Section 2 describes the atmospheric conditions of the study area. Section 3 gives the results of the physical model, operation principle, and mathematical modeling of the power system. The results of the low-temperature characteristics of batteries are shown in Section 4. The energy management strategy of hybrid wind-solar system is given in Section 5. Section 6 introduces the design of the whole power system. The results of a case study of the hybrid wind-solar power system in Zhongshan Station are presented in Section 7. The conclusions are in final section.