摘 要：該文基于串聯(lián)多電平技術(shù)，完成一套鏈?zhǔn)届o止同步補(bǔ)償器控制系統(tǒng)的研究與設(shè)計(jì)。根據(jù)反饋解耦控制算法和單級倍頻載波相移正弦脈寬調(diào)制方法，采用串聯(lián)多電平技術(shù)，以TMS320F28335為核心處理器，采用軟件算法實(shí)現(xiàn)補(bǔ)償器直流側(cè)電壓均衡控制。設(shè)計(jì)鏈?zhǔn)浇Y(jié)構(gòu)的三相電壓源逆變器，構(gòu)成鏈?zhǔn)届o止同步補(bǔ)償器系統(tǒng)，實(shí)現(xiàn)系統(tǒng)無功補(bǔ)償控制。經(jīng)過試驗(yàn)測試，結(jié)果表明：該系統(tǒng)的無功補(bǔ)償效果與理論一致，設(shè)計(jì)可行、可靠。
關(guān)鍵詞：無功補(bǔ)償；反饋解耦控制算法；串聯(lián)多電平；鏈?zhǔn)届o止同步補(bǔ)償器
文獻(xiàn)標(biāo)志碼：A 文章編號：1674-5124（2015）12-0100-06
Research and design of control system for cascade static synchronous compensators
WEI Lijun1，2， XIE Yongchao2
（1. School of Geosciences and Info-Physics，Central South University，Changsha 410083，China；
2. Hu’nan Railway Professional Technology College，Zhuzhou 412001，China）
Abstract: A control system for cascade static synchronous compensators has been developed on the basis of cascaded multilevel technology. In combination with feedback decoupling control algorithm and sinusoidal pulse width modulation for single-level frequency doubling carrier phase shifting， using cascaded multilevel technology， TMS320F28335 as core processor and software algorithm were employed to realize compensator DC-side voltage balancing control. A chain-linked three-phase voltage source inverter was designed accordingly to constitute a cascade static synchronous compensator system， thus achieving the goal of reactive power compensation control. Tests prove that the system is feasible and reliable.
Keywords: reactive power compensation； feedback decoupling control algorithm； cascaded multilevel；cascade static synchronous compensator
