摘要
为了提高高压交直流混联电网架空输电线路施工质量与线路抗干扰能力,进行了高压交直流混联电网架空输电线路施工技术研究。构建输电线路施工约束参数模型,采用混合MMC电容电压波动调节方法进行输电线路输出载荷的稳定性调节;结合电网混合拓扑结构进行输电线路的组网设计,采用多因素反馈调节方法进行负电平输出稳定性调节;结合模块投切输出转换控制方法进行高压交直流混联电网的负载均衡控制;采用排序方法均衡输出输电线路子模块之间的电容电压,实现高压交直流混联电网架空输电线路施工技术优化。仿真结果表明,负载均衡性较好,抗干扰能力较强,提高了高压交直流混联电网架空输电线路的稳定性和可靠性。
In order to improve construction quality and line anti-interference ability of overhead transmission lines of high-voltage AC/DC hybrid grids,research was carried out on the construction technology for such lines.A model was established for construction constraint parameters of transmission lines,and the stability of output load of the transmission line was regulated by adopting the hybrid MMC capacitive voltage fluctuation regulation method.Network design was completed for the transmission line according to the hybrid topological structure of the power grid,while stability of negative level output was regulated in the multi-factor feedback regulation method.Load balance control of the high-voltage AC/DC hybrid grid was realized in the module switching output conversion control method,and capacitive voltage between sub-modules of the transmission line were balanced in the ordering method to optimize construction technology for overhead transmission lines of high-voltage AC/DC hybrid grids.Simulation results indicated that the proposed approach achieved good load balance and strong anti-interference ability,and could raise the stability and reliability of overhead transmission lines of high-voltage AC/DC hybrid power grids.
作者
丁萍刚
杨洲
王祎
Ding Pinggang;Yang Zhou;Wang Yi(State Grid Quzhou Power Supply Co., Quzhou Zhejiang 324000, China)
出处
《电气自动化》
2021年第1期59-62,共4页
Electrical Automation
关键词
高压交直流混联电网
架空输电线路
施工技术
约束参数模型
电网混合拓扑结构
多因素反馈调节
负载均衡
high-voltage AC/DC hybrid grid
overhead transmission line
construction technology
constraint parameter model
hybrid topology of power grid
multi-factor feedback regulation
load balance
作者简介
丁萍刚(1972—),男,浙江衢州人,在职硕士生,高级工程师,主要研究方向:电网基建技术、电网发展规划技术和工程物资管理;杨洲(1978—),男,浙江龙游人,本科,经济师,主要研究方向:电网基建技术、工程造价管理;王祎(1980—),男,浙江衢州人,在职硕士生,高级工程师,主要研究方向:电网基建技术和继电保护计算技术。
