基于移相电压误差补偿的新型单/三相变换系统控制策略研究

Research on Control Strategy of New Single/Three-phase Transformation System Based on Phase-shift Voltage Error Compensation

摘要:

农、牧偏远地区及电气化铁路沿线地区光照资源丰富、空间资源充足，具有良好的分布式光伏的建设条件，在这些地区引入分布式光伏，不仅能够迎合“新能源就近就地消纳”的政策要求，还能为系统提供一定的能量支撑，并在一定程度上提高系统的灵活性。为解决单/三相变换、电能质量综合治理、光伏能源就地消纳的问题，以“传统控制改进-新型拓扑提出-底层控制研究-协调控制设计”为主线开展研究，提出了一种计及光伏接入且具有电能质量治理能力的单/三相变换系统, 并在Matlab/Simulink中搭建了系统的相关仿真模型。仿真结果验证了所提新型单/三相变换系统及其协调控制策略的正确性及有效性。

Abstract:

Agriculture and animal husbandry in remote areas and electrified areas along the railway is rich in light resources and sufficient space resources, which has good construction conditions of distributed photovoltaic, so the introduction of distributed photovoltaic in these areas can not only to cater to the "new energy locally given nearby" policy requirements, also can provide certain energy support for the system, and to a certain extent, it can improve the flexibility of the system. In order to solve the problems such as single/three-phase transformation, power quality control and local accommodation of photovoltaic energy, and taking "traditional control improvement-new topology-underlying control research-coordinated control design" as the main line, a single/three-phase transformation system with power quality control ability is put forward considering photovoltaic access, and the related simulation models are established in Matlab/Simulink. The simulation results verify the correctness and effectiveness of the new single/three-phase transformation system and its coordination control strategy.