• J.-C. Chang, J.-R. Chen, Y.-C. Lin, Z.-D. Tsai, T.-S. Ueng
  NSRRC, Hsinchu

The design of the utility system for the 3.0 GeV Taiwan Photon Source (TPS) has been finished and the construction engineering has been contracted out in the end of 2009. This paper presents the TPS utility system, including the electrical power, cooling water and air conditioning system, which were designed to meet requirements of high reliability and stability. The TPS construction site is located adjacent to TLS. Even some areas of TPS and TLS are overlapped. The whole utility system construction will be finished in the end of 2012. Therefore, the construction engineering of the TPS utility system is a challenge to finish on a tight schedule and keep the TLS in operation during the construction. Some management schemes of the construction engineering are also presented in this paper.

• T.-S. Ueng, J.-C. Chang, J.-M. Lee, Y.-C. Lin
  NSRRC, Hsinchu

The electric power system of Taiwan Photon Source (TPS) will be installed during the construction of TPS. Many power electronic devices which produce large nonlinear loads will be used in the new power system and the accelerator facility. The capacitor banks will also be used for the power factor correction. Thus, the excessive harmonic waveform distortion level on the normal waveform will be presented continuously. These excessive harmonic current flows will result in transformer and cable over-heating and many types of circuit faults, and also wasting energy. A project is initiated to study these harmonic effects which will appear in the electric power system of TPS. A computer simulation approach is used to study the harmonic waveform distortion phenomena, and also to investigate an effective approach to reduce it. The harmonic effects of selected section of TLS (Taiwan Light Source) electric power system, and those appear at the mock segment of 1/24 accelerator of TPS system are measured and compared with the simulated results.