现代电子技术
現代電子技術
현대전자기술
Modern Electronics Technique
2015年
22期
147-149,154
,共4页
PSCAD/EMTDC%三电平电压源型静止同步补偿器%变换器%无功补偿%SPWM
PSCAD/EMTDC%三電平電壓源型靜止同步補償器%變換器%無功補償%SPWM
PSCAD/EMTDC%삼전평전압원형정지동보보상기%변환기%무공보상%SPWM
PSCAD/EMTDC%3-level voltage-source STATCOM%converter%reactive power compensation%SPWM
根据STATCOM的基本原理,分析和推导了其数学模型.根据其数学模型,利用PSCAD/EMTDC电力系统仿真软件建立了三电平静止同步补偿器STATCOM的仿真模型.采用SPWM调制方式和PI调节的控制策略来控制系统的直流侧电压的稳定和输出无功功率的大小,并对其进行了仿真.仿真结果证明采用此种控制策略能够达到控制要求,也说明了三电平电压源型STATCOM可以很好地补偿无功功率,提高功率因数,有效地改善电能质量.
根據STATCOM的基本原理,分析和推導瞭其數學模型.根據其數學模型,利用PSCAD/EMTDC電力繫統倣真軟件建立瞭三電平靜止同步補償器STATCOM的倣真模型.採用SPWM調製方式和PI調節的控製策略來控製繫統的直流側電壓的穩定和輸齣無功功率的大小,併對其進行瞭倣真.倣真結果證明採用此種控製策略能夠達到控製要求,也說明瞭三電平電壓源型STATCOM可以很好地補償無功功率,提高功率因數,有效地改善電能質量.
근거STATCOM적기본원리,분석화추도료기수학모형.근거기수학모형,이용PSCAD/EMTDC전력계통방진연건건립료삼전평정지동보보상기STATCOM적방진모형.채용SPWM조제방식화PI조절적공제책략래공제계통적직류측전압적은정화수출무공공솔적대소,병대기진행료방진.방진결과증명채용차충공제책략능구체도공제요구,야설명료삼전평전압원형STATCOM가이흔호지보상무공공솔,제고공솔인수,유효지개선전능질량.
The fundamental of STATCOM is introduced briefly,and its mathematical model is analyzed and deduced. Ac-cording to the mathematical model,the simulation model of 3-level STATCOM was established by simulation software of PSCAD/EMTDC electric power system. The voltage stability of the DC side and reactive power output in the system are controlled by using SPWM modulation method and PI regulation control strategy. The system was simulated. The analysis of the simulation results proves this control strategy can achieve the control requirements,and show that the 3-level voltage-source STATCOM can com-pensate reactive power,improve the power factor and the power quality effectively.
