现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
20期
154-156
,共3页
电力电子电路%容错控制%混杂系统%模型预测控制
電力電子電路%容錯控製%混雜繫統%模型預測控製
전력전자전로%용착공제%혼잡계통%모형예측공제
power electronic circuit%fault tolerant control%hybrid system%model predictive control
与电力电子电路的传统开关函数模型相比，由于混合逻辑动态（MLD）模型同时包含电路的控制变迁和条件变迁，因而MLD模型更能精确的反应电路的变化过程。这里建立了电力电子电路的MLD模型，考虑到MLD模型中包含离散变量，传统控制方法不再适用，因而将辅助逻辑变量和辅助连续变量引入模型预测控制（MPC），研究了基于MLD模型和MPC的电力电子电路容错控制及其实现步骤。该方法具有实现简单、容错性能良好、通用性较强的优点。以三相四桥臂逆变电路的容错控制为例验证了该方法的可行性和有效性。
與電力電子電路的傳統開關函數模型相比，由于混閤邏輯動態（MLD）模型同時包含電路的控製變遷和條件變遷，因而MLD模型更能精確的反應電路的變化過程。這裏建立瞭電力電子電路的MLD模型，攷慮到MLD模型中包含離散變量，傳統控製方法不再適用，因而將輔助邏輯變量和輔助連續變量引入模型預測控製（MPC），研究瞭基于MLD模型和MPC的電力電子電路容錯控製及其實現步驟。該方法具有實現簡單、容錯性能良好、通用性較彊的優點。以三相四橋臂逆變電路的容錯控製為例驗證瞭該方法的可行性和有效性。
여전력전자전로적전통개관함수모형상비，유우혼합라집동태（MLD）모형동시포함전로적공제변천화조건변천，인이MLD모형경능정학적반응전로적변화과정。저리건립료전력전자전로적MLD모형，고필도MLD모형중포함리산변량，전통공제방법불재괄용，인이장보조라집변량화보조련속변량인입모형예측공제（MPC），연구료기우MLD모형화MPC적전력전자전로용착공제급기실현보취。해방법구유실현간단、용착성능량호、통용성교강적우점。이삼상사교비역변전로적용착공제위례험증료해방법적가행성화유효성。
Compared with traditional switching function model of power electronic circuit,mixed logic dynamic (MLD) model can accurately describe the changing process of circuit because the mixed logic dynamic model contains the control change and condition change of circuit. The MLD model of power electronic circuit is established in this paper. Considering that the MLD model contains the discrete variables,the traditional control method is no longer applicable. Therefore,the auxiliary logical variables and assisted continuous variable were introduced into the model predictive control (MPC). The fault tolerant control and realization steps of power electronic circuit based on MLD model and MPC were researched. The method has the ad-vantages of simple realization,good fault tolerance error performance,strong versatility. The feasibility and effectiveness of this method were verified by the example of fault-tolerant control of a three-phase four-leg inverter circuit.
