基于晶闸管的无触点线路调压装置的低电压治理

Low Voltage Ｒegulation of Non － contact Ｒegulating Device Based on Thyristor

摘要:

为解决农村电网中普遍存在的低电压问题，提出了采用基于晶闸管无触点线路调压装置的治理措施。晶闸 管无触点线路调压器将两个晶闸管反并联处理后连接到一台串联变压器的一次侧抽头上，通过设计相对应的单片机 控制系统发出相应的触发信号来控制这组晶闸管开关的通断从而调整变压器一次侧绕组接入的多少达到稳定输入 电压的作用。在具体控制中，为了防止出现两组晶闸管开关器件之间形成环流，需要找到相应的措施来开通晶闸管 开关。经过试验验证，晶闸管无触点线路调压器完全可以起到稳定电压的作用。

关键词:低电压治理; 电能质量; 晶闸管; 无触点调压

Abstract:

In order to solve the problem of low voltage in the rural power grid，the control measures of voltage regulating device based on the non － contact line of thyristor are proposed． Thyristor step voltage regulator will be treated as two thyristors in inverse parallel connection to a series on the primary side of transformer tap，with the corresponding design of single chip microcomputer control system，the corresponding trigger signals are released to control the set of thyristor，thus it adjusts the transformer winding connecting in primary side to stabilize the input voltage． In the concrete control，in order to prevent the formation of circulation between thyristor switch devices，the corresponding measures need to be found to open the thyristor switch． It is proved that the thyristor step voltage regulator can be used to stabilize voltage．

Key words:low voltage regulation; power quality; thyristor; voltage regulation without contact