The voltage and reactive power control system can improve voltage quality and reduce the active power loss.
电压无功控制系统对于提高电压质量，降低电网的有功损耗有着重要的意义。
The voltage and reactive power control system for substations can improve voltage quality and reduce the active power loss.
变电站电压无功控制系统可提高电压的质量和降低电网的有功损耗。
Reactive power optimization is an effective method to keep power system safe and economy, and it's an important measure to improve voltage quality.
电力系统无功优化配置是保证电力系统安全、经济运行的一项有效手段，是提高电压质量的重要措施。
Var optimization is core problem of voltage stability and economic operation of electric power system, also important measure to improve voltage quality.
无功优化是电力系统电压稳定与经济运行的核心问题，也是提高电力系统电压质量的重要措施。
It is necessary to use reactive power optimization to improve voltage quality, reduce operation network loss and improve security and stability of the operation system.
通过无功优化来改善电压质量、降低运行网损以及提高系统运行的安全稳定性显得尤为必要。
Reactive power optimization in power system is an effective means to improve voltage quality, reduce network losses and ensure power system operates in a secure and economical way.
电力系统无功优化是提高电压质量、降低系统运行网损、保证系统安全经济运行的有效手段。
Fuzzy control tests of arc voltage and short-circuit frequency are conducted to improve welding quality.
采用模糊控制技术，实现了电弧电压或短路频率的控制，提高了焊接质量。
Dynamic voltage Restorer is a powerful equipment to improve the voltage quality.
动态电压恢复器是改善电压质量的一种有力工具。
The voltage and inactive power control of substations have become necessary measures to ensure the voltage quality and inactive power balance and improve the reliability and economy of power system.
变电站电压、无功控制已成为保证电压质量和无功平衡，提高电力系统可靠性和经济性必不可少的措施。
Increasing power factor of traction substation is the effective measure to improve power quality of electrified railway for better voltage quality and less loss.
提高牵引变电所(简称牵引变)功率因数以改善系统电压质量、减少系统损耗是改善电气化铁路电能质量的有效措施。
The general reactive power optimization is only to reduce the loss of the system and improve the quality of voltage, which is suitable when system has enough power capability.
传统的无功优化通常考虑的仅仅是提高电网的电压质量和降低网损，当系统的传输容量有足够的裕度时，这种只考虑经济效益和基本运行约束的做法是适当的。
The voltage regulation action of controlled reactor in distribution network is introduced. It can effectively control the variety of network voltage and improve the quality of power supply.
介绍了可控电抗器在配电网中的调压作用，它可以有效抑制电网电压的波动，改善供电质量。
Finally using the destructive ac voltage testing method, accurately find the failure for repairing which improve the quality of power supply.
最后使用破坏性试验交流耐压试验方法检查，准确的判断了故障点，使之得以修复，提高了供电质量。
The cut-off frequency of improved inverter output filter can be set higher to ensure the bandwidth of control system and improve the waveform quality of inverter output voltage.
改进后逆变器输出滤波器的截止频率可以取较高值，保证足够的控制系统带宽，有效提高逆变器输出电压波形质量。
It can improve the reliability and quality of the high voltage DC electrical system of airplane to adopt modular power supplies to construct a secondary distributed power system.
采用模块电源构成飞机高压直流电气系统的二次电源分布式系统，可提高供电可靠性和供电质量。
Intelligent synchronous high voltage switch can be utilized to minimize the switching overvoltages and high inrush currents in power systems, as well as to improve the overall power quality.
高压智能同步开关技术是有效抑制电力系统操作过电压和涌流以及全面提高电能质量的关键技术。
Some research work of voltage reactive power optimization control of region network has been done in order to improve the voltage quality and decrease the power loss;
为了提高电压质量，降低电能损耗，本论文针对我国地区电网的状况和特点，对电网电压无功优化控制进行了深入的探索和研究；
It can be to improve the quality of supply that the reasonable selection of underground low voltage cable cross section.
合理选择井下低压电缆截面，可为提高供电质量提供客观依据。
Optimizing reactive power and voltage control in power system is an important and efficient method to improve the voltage quality and ensure the voltage stability.
无功电压优化控制是减少电网损耗、保持电压稳定性、提高电力系统安全性和经济性的有效措施。
Besides, in order to eliminate the effect of grid voltage distortion or disturbance on output current, decoupling control is employed to further improve the quality of output current.
此外，为了消除电网电压畸变或扰动对逆变器输出电流的影响，系统中引入了电网电压前馈解耦控制，改善了系统输出电流的质量。
Besides, in order to eliminate the effect of grid voltage distortion or disturbance on output current, decoupling control is employed to further improve the quality of output current.
此外，为了消除电网电压畸变或扰动对逆变器输出电流的影响，系统中引入了电网电压前馈解耦控制，改善了系统输出电流的质量。
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