摘要
在UPFC基本结构的基础上,将UPFC的作用以串联与并联电压源模型表示,并将其对网络的影响以等效注入功率模型表示。利用模态分析法确定系统电压和负荷能力的薄弱区域,建立UPFC控制参数对负荷因子的灵敏度,根据灵敏度的大小确定UPFC最佳安装位置。建立以平衡节点有功最小的含UPFC网损优化数学模型,利用模拟退火改进粒子群算法以增强全局搜索能力,获取了网损优化控制变量。以IEEE-14标准算例为例,计算了含UPFC的系统网损,验证了该模型和算法的有效性。
On the basis of the structure of UPFC, the model of series and parallel voltage source is used to express the effect of UPFC, the influence of which on the network is presented by equivalent power injection model. The paper determines the weak region of system voltage and load capability by modal analysis method, and establishes the sensitivity of UPFC control parameters on load factor, which is used to determine the best location for UPFC. The paper establishes, at the meantime, the mathematical model of minimum active power network loss optimization with UPFC at the balance node, and obtains the control variable of network loss optimization by enhancing global searching through simulating annealing improved particle swarm algorithm. Taking IEEE - 14 standard example for instance, the author calculates the network loss of the system with UPFC, and verifies the feasibility of the model and the algorithm.
出处
《黑龙江电力》
CAS
2014年第6期491-495,501,共6页
Heilongjiang Electric Power
关键词
统一潮流控制器
选址
网损优化
改进粒子群算法
UPFC
location
network loss optimization
improved particle swarm algorithm
