Research Of Beijing Power Grid Independent Area Control Frequency Adjustment Strategy

According to the state grid corporation of Beijing electric power company management responsibilities of related documentation requirements, after October 20, 2009, Beijing power grid dispatching power adjustment, within the jurisdiction of the Beijing 220 kv ring network equipment and large capacity units, control right of scheduling by the Beijing by the end of 2013, Beijing has reached 17759.5 MW, the maximum load of Beijing power grid installed capacity of 7.104 million kilowatts only.Beijing power grid through the automatic generation control, on the premise of meet the safe and stable operation of power grid, how to realize the requirement of Beijing power grid control and adjusting in succession independently, and run to meet the power plant to improve economic performance, reduce the control deviation and adjust examination power, is a significant challenge for Beijing electric power company work.This article through to the Beijing power grid load characteristics, load forecasting accuracy and power generation plan management, crew performance parameters such as data analysis, proposed the independent control at runtime how to control link operation and evaluation, according to the characteristics of Beijing power grid design two rules system, etc. Through the data analysis, network unit according to the performance and stratification adjustment ability, namely adopt hierarchical control adjustment mode: have the good performance of AGC and the adjusting unit is used to control deviation adjustment; Secondary regulation performance of unit normal follow plan.Again on the basis of hierarchical control adjustment thoughts, this paper puts forward the suitable for independent control of the actual situation of Beijing power grid electricity control system scheme, including AGC cycle setting, AGC control mode and the ACE calculation unit, control mode and control program and the design of the algorithm, covers the control deviation calculation and processing, the ACE control interval division, unit control instruction issued by calculation method, the ACE adjustment for calculating distribution coefficient between unit, the operator manually adjust the strategy and AGC software failure situation of emergency management. Finally according to the various factors influencing the control adjustment, and according to the unit performance difference, an independent control simulation run, for the Beijing power grid independent adjustment work put forward the theoretical basis for the control area.