Research On Key Technologies Of Station Power System Of Substation

Station power system that composed by the station AC power systems, DC power systems and AC uninterruptible power supply system is an important part which protects the substation safely and reliability. The operation of production equipment in substation depends on Station Power System that will affect the safe of substation directly or indirectly, even a serious accident of station power system will expand the scope of power outages.At present, the subsystems of Station power system are designed decentralized and grouped independently. The devices of subsystems are produced, installed and tested by different vendors, also they are managed by different professional in power supply systems, lacking unified design and management. Station power system will not be taken into account areas at preliminary design of substations stage. The existing station power system are difficult to adapt the development of substation automation technology, and can be optimized in resource integration, automation, management. The integration of AC and DC power substation model that compact, economical and reliable has broad application prospects.Station power load allocated rationally and standard power supply system are the foundation of power system operated safely, stably and reliably. This paper intends to research on key technologies of station power system, providing the basis for the load allocation. Finally we discuss the solutions of integrated station power system from the intelligent AC power supply, rechargeable online self-test module and inverter technology. This paper has great significance in guiding the construction of Station Power System, renovation and operation management, improving the station with the power system security and reliability, enhancing its maintainability and manageability.