分布电能治理型电力载波抄表系统控制研究

Study on Controlling for Power Carrier Meter Reading System Based on Distributed Power Governance

根据现代家庭负荷的特点及集中式无功补偿系统的不足,利用分布式电能治理的特点,提出了一种电压控制型无功补偿方法。该方法以分布负荷电能治理为目标,并与分布负荷的电能计量结合为一体,采用PI控制产生连续可调的SPWM正弦脉冲序列,从而控制无功补偿电容端电压,保证系统中无功电源的稳定。试制样机验证了该控制方法的可行性和可靠性,表明电能治理型电力载波抄表系统将成为广大负荷用户的首选。

In accordance with the features of modern home electricity load, and the deficiency of centralized reactive power compensation system, by using particularity of distributed electric energy governance, the voltage control type reactive power compensation method is proposed. With distributed load energy governance as the goal, and integrating the electric energy metering of distributed load, the continuously adjustable SPWM sinusoidal pulse sequence is generated by PI control, thus the reactive power compensation capacitor voltage can be controlled to guarantee the stability of the reactive power in the system. The tested prototype verifies the feasibility and reliability of this control method. This indicates that such meter reading system will become the majority of the load user’s first choice.