quality control

Through taking the primary and secondary networks of indirectly connected heating system as a whole,a new temperature-flow regulation method is proposed.

将间接连接供热系统的一、二次网视为一个整体,提出在部分负荷时二次网采用控制流量比大于60%,一次网采用控制流量比大于30%的同时,改变循环流量和供回水温度的质-量调节方法。

A shunt power quality conditioner based on asymmetry cascade inverter;

不对称级联逆变器的并联电能质量调节器

The structural features and control objective of the shunt unified power quality conditioner constituted by one inverter only are analyzed.

分析了仅由1套逆变器构成的并联型综合电能质量调节器的结构特点和控制目标,提出了一种基于状态变量反馈的系统控制方法,通过控制电源电流来间接控制负载电压,很好地解决了常规比例–积分控制时电源和负载间的连接电感所导致的供电电流直流暂态分量不衰减的问题。

A hybrid power quality conditioner (HPQC) is presented, which is composed of a PWM converter 1 and a shunt filter circuit.

提出了一种混合型电能质量调节器,它由一个通过变流器CT串联接入系统的PWM变换器1和一个并联滤波支路组成。

The voltage pumping-up phenomenon in DC side is analyzed for a series active voltage quality regulator in the paper.

对一种串联有源电压质量调节器运行中直流侧存在的电压泵升现象进行了分析,并对采用移相控制技术来抑制直流电压泵升时电网过电压倍数、负载功率因数、移相角及补偿电压大小之间的关系进行了理论分析。

Simulation study of unified power quality conditioner;

电能质量调节器检测方式的研究