With the rapid development of new energy and the access of large-scale new energy stations

there are risks and challenges in the reliability of relay protection and the control of voltage and frequency.The stable and reliable operation of new energy stations is the basis for ensuring the safety of the power grid.However

due to the rapid construction speed and short construction period of the new energy station

there are the shortage of professional personnel being caused by the overall non-standard and unreasonable setting of partial relay protection and still serious defects in the new energy station after the operation and production.It analyzes and deals with the typical problems of electrical system design and relay protection setting value.It solves the safety risks caused by defects and improves the reliability of the new energy station relay protection device.