2008 Yunnan Power Grid Security Measures To Stabilize The Program Study

With Completion of the south of the transmission channel that transmit the electricity from the western areas to East China and Jinhong,DayinjiangIVPower station put into operation one after another in 2008. Yunnan Power Grid have been expanding network of more complex.the probability of Power serious failure is also increasing. In order to ensure the safe and stable operation of power grid,this papers combined with the Yunnan power grid network structure, external power in 2008, a detailed analysis of a variety of ways under the power flow distribution and stability of the grid, power flow and stability analysis and found a weak link in power grid operation and insecurity, And on this basis, put forward to ensure safe and stable operation of the Yunnan Power Grid of the main measures and means in 2008. This Papers focus on the analysis of the Yunnan Power Grid in 2008 is the normal case of network N-2 faults, maintenance mode N-2 failure and other serious failure of the thermal power grid stability and steady suspense, as well as large load delivery may be caused by the existence of the power grid High-frequency issues, and will ensure the stable operation of power grid operation to control the principles of real-time scheduling, security and stability control system to implement measures to cut the frequency of high-power grids, power grids and relay protection measures in such areas as the focus of analysis.The paper analyzes the main aspects of five:1. Collected the size of the parameters of the network structure and operation of the program in 2008 in Yunnan power grid, for the next phase of the work of the calculation to determine the boundary conditions.2. Yunnan Power Grid in 2008 on the normal way, N-1 and overhaul the way N-2 under the overhaul of the way the trend results are analyzed.3. Yunnan Power Grid in 2008 on the normal way, N-1 overhaul the way, N-2 repair methods and other special mode of calculating the results of the stability of power grids, power grids, as well as the existence of high-cycle analysis of the issues, and in 2008 the security and stability in the Yunnan Power Grid In the operation of the main problems4. Systematically discusses the Yunnan Power Grid in 2008 to address the major issues of security and stability and the implementation of the program, including the dispatching of the main principles of real-time control, power grid security and stability control system programs, cutting machine-week high power network and relay protection measures in four areas5. Combined now operation of power grids, summed up in 2008 in Yunnan power grid safe and stable operation of the analysis and the effectiveness of the measures.