一种无功平衡与临界潮流快速分析方法及其在特高压可控高抗需求分析中的应用
일충무공평형여림계조류쾌속분석방법급기재특고압가공고항수구분석중적응용
Fast Analysis Method of Reactive Power Balancing and Critical Power Flow and Application to Study Controllable Shunt Reactors Requirement in UHV Grid
  • 万方数据
    中国电机工程学报 중국전궤공정학보
    ZHONGGUO　 DIANJI　GONGCHENG　XUEBAO
    2013年 19期 102-110 ,共9页

    秦晓辉%郭强%周勤勇%申洪%刘楠%张健%郑超%王义红%李晶%刘道伟%顾卓远%王雅婷%张彦涛%孙玉娇

    진효휘%곽강%주근용%신홍%류남%장건%정초%왕의홍%리정%류도위%고탁원%왕아정%장언도%손옥교

    电力系统%无功平衡%临界潮流%特高压%可控高抗%需求分析 電力繫統%無功平衡%臨界潮流%特高壓%可控高抗%需求分析
    전력계통%무공평형%림계조류%특고압%가공고항%수구분석
    power system%var balance%critical power flow%ultra high voltage (UHV)%controllable shunt reactor (CSR)%demand analysis
    　　随着我国特高压电网规划和建设的不断深入，可控高抗作为重要的无功电压调节手段备受关注，亟需对其在特高压电网中的需求和布点作出科学判断。首先提出可操作性强的特高压电网无功平衡原则，深入分析电网元件的无功需求和有功传输之间的定量关系；进而提出一种可仅基于有功电力流，以变电站为中心的电力系统无功平衡及其临界潮流快速分析方法；随之将这种方法应用到特高压电网可控高抗的需求和布点研究中。该方法不仅可以对指定的规划方式进行快速定量分析，还可以给出变电站临界潮流和变压器负载率之间的关系曲线及其变化趋势，从而增强了研究结论对不同负载水平和运行方式的适应性。对“东纵”特高压输变电工程进行可控高抗的需求和布点研究，给出工程适用性强的结论和建议，为特高压可控高抗示范工程方案的确定和后续工作的开展提供了技术依据。
    　　수착아국특고압전망규화화건설적불단심입，가공고항작위중요적무공전압조절수단비수관주，극수대기재특고압전망중적수구화포점작출과학판단。수선제출가조작성강적특고압전망무공평형원칙，심입분석전망원건적무공수구화유공전수지간적정량관계；진이제출일충가부기우유공전력류，이변전참위중심적전력계통무공평형급기림계조류쾌속분석방법；수지장저충방법응용도특고압전망가공고항적수구화포점연구중。해방법불부가이대지정적규화방식진행쾌속정량분석，환가이급출변전참림계조류화변압기부재솔지간적관계곡선급기변화추세，종이증강료연구결론대불동부재수평화운행방식적괄응성。대“동종”특고압수변전공정진행가공고항적수구화포점연구，급출공정괄용성강적결론화건의，위특고압가공고항시범공정방안적학정화후속공작적개전제공료기술의거。
    With the planning and constructing of the ultra high voltage (UHV) grid of China, the controllable shunt reactor (CSR) attracts more attentions as an important control measure for var and voltage. Therefore it is urgent to analysis and study the deployment of UHV CSRs scientifically. In the paper, firstly, the feasible var balance principles were proposed;secondly, the quantitive relationship between the var demand and active power going through the reactance element was analyzed in depth. Furthermore, only based on active power flow, the fast analysis method of substation-centered var balance and critical power flow was proposed and applied into the study of the deployment of the UHV CSR and its requirement and location. The method can not only be applied into the fast quantitive analysis of the given power flow pattern, but also can be used to obtain the relation curve between the critical power flow and the transformer load rate, thereby, the adaptability of the study conclusions to the various load levels and power flow patterns is increased. Finally, the requirement and the deployment of CSRs in UHV‘Dongzong’ transmission project were studied with the proposed method, and the conclusions and recommended deployment schemes were given, which provides the technical basis for the pilot project of UHV CSR.
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