CAJ | 학술논문

为提高配电网静止同步补偿器(Distribution Static Synchronous Compensator，DSTATCOM)控制系统的鲁棒性和动态性能，在对DSTATCOM非线性数学模型时域分析的基础上，得出滑模控制的一般规律。为削弱滑模控制的抖振现象，提出一种新型滑模控制方法。该方法将滑模面分解为两个滑模子面，根据滑模子面的偏离程度分别采用不同的滑模控制规律，既保证了电流跟踪的快速性又削弱了抖振现象。研制了一台基于DSP的DSTATCOM样机，给出硬件原理和软件设计流程。实验结果表明，该控制方法动态响应快、鲁棒性好、能较好地抑制电流的毛刺现象，证明了该方法的正确性和可行性。
위제고배전망정지동보보상기(Distribution Static Synchronous Compensator，DSTATCOM)공제계통적로봉성화동태성능，재대DSTATCOM비선성수학모형시역분석적기출상，득출활모공제적일반규률。위삭약활모공제적두진현상，제출일충신형활모공제방법。해방법장활모면분해위량개활모자면，근거활모자면적편리정도분별채용불동적활모공제규률，기보증료전류근종적쾌속성우삭약료두진현상。연제료일태기우DSP적DSTATCOM양궤，급출경건원리화연건설계류정。실험결과표명，해공제방법동태향응쾌、로봉성호、능교호지억제전류적모자현상，증명료해방법적정학성화가행성。
In order to improve the robustness and dynamic response of distribution static synchronous compensator (DSTATCOM) control system, the common sliding mode control strategy is proposed based on the time-domain analysis of DSTATCOM nonlinear mathematical model. A novel sliding mode control strategy is proposed to further reduce chattering. Sliding surface is separated into two different sliding surface according to deviation extent which has different sliding mode strategy, so the current tracking speed is improved and chattering is reduced. Hardware and software of DSTATCOM are designed, and a prototype based on DSP is implemented. The proposed control strategy possesses the advantages such as strong robusticity, good dynamic response and low chattering, which show its validity and feasibility.